STATPAK-Win
Statistical Evaluation of Data
User‘s Manual
v 1.5
Introduction
Contents
1
Introduction .............................................................. 1-7
2
Functions: parts-related .......................................... 2-8
3
Functions: Summary................................................ 3-9
3.1
PARTS ............................................................................................. 3-9
3.2
TILE W INDOWS................................................................................. 3-9
3.2.1
3.2.2
4
Window List ............................................................................................3-10
Other Menu Bar - Other Window Menu..................................................3-10
Setting Options ...................................................... 4-11
4.1
SETTINGS ...................................................................................... 4-11
4.2
ERROR RANKING ............................................................................ 4-11
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3
NETWORK: ANALYSES AUTOMATICALLY OPEN .................................. 4-13
4.3.1
4.3.2
4.4
5
The Arrangement of the Dialogue window .............................................4-12
Remove an Error Type ...........................................................................4-12
Changing Rank.......................................................................................4-12
Colour Selection .....................................................................................4-13
Select Graphic Display ...........................................................................4-13
The Definition .........................................................................................4-13
The Window............................................................................................4-14
LISTS ............................................................................................. 4-14
Reports ................................................................... 5-15
5.1
REPORTS GENERAL ........................................................................ 5-15
5.2
THE ERROR REPORT ...................................................................... 5-15
5.3
SETTINGS OF ERROR REPORT......................................................... 5-16
5.3.1
5.3.2
Period .....................................................................................................5-16
Selection of Errors ..................................................................................5-17
5.4
THE CAPABILITY REPORT ................................................................ 5-17
5.5
SETTINGS FOR CAPABILITY REPORT ................................................ 5-18
5.5.1
5.5.2
5.5.3
5.6
5.6.1
5.6.2
1-2
Additional Filters .....................................................................................5-19
Cp-Limit/Cpk-Limit ..................................................................................5-19
Maximum Number of Groups .................................................................5-19
SUMMARY OF ALL PARTS ................................................................ 5-20
Definition.................................................................................................5-20
Options ...................................................................................................5-20
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28.11.00
Introduction
6
Network .................................................................. 6-21
6.1
THE STATPAK-W IN NETWORK....................................................... 6-21
6.2
INSTALLATION OF THE STATPAK-WIN NETWORK............................. 6-22
6.2.1
Selection of Operating Mode ................................................................. 6-23
6.3
THE NETWORK-MANAGER............................................................... 6-24
6.4
LIST OF THE TRANSFERS ................................................................. 6-25
6.4.1
6.4.2
6.5
STATION MAP ................................................................................ 6-26
6.5.1
6.6
Activate Station Map .............................................................................. 6-26
CONFIGURATION OF THE STATION MAP ............................................ 6-27
6.6.1
6.7
Further measurement station................................................................. 6-29
LIST OF THE TRANSFERS OF A MEASUREMENT STATION ..................... 6-29
6.7.1
6.7.2
6.8
Delete the list ......................................................................................... 6-29
The Procedure ....................................................................................... 6-30
THE NETWORK MEASUREMENT STATION ......................................... 6-30
6.8.1
6.8.2
6.8.3
7
Delete List of Transmissions.................................................................. 6-25
Start the analysis of a part ..................................................................... 6-25
Selectable part directory ........................................................................ 6-31
Fixed part directory ................................................................................ 6-31
Set-up a fixed part directory................................................................... 6-32
Main Window: feature related ............................... 7-33
7.1
THE MENU ..................................................................................... 7-33
7.2
OPEN AUTOMATIC ANALYSIS ........................................................... 7-33
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
The Procedure ....................................................................................... 7-33
The Window ........................................................................................... 7-34
Analyses in Detail .................................................................................. 7-34
Default Settings...................................................................................... 7-35
Default.................................................................................................... 7-35
Deselect ................................................................................................. 7-35
Select and Deselect in a Block .............................................................. 7-36
7.3
DEFINITION OF FEATURES ............................................................... 7-36
7.4
FUNCTIONS OF THE FEATURE W INDOW ............................................ 7-37
7.4.1
7.4.2
Part functions ......................................................................................... 7-37
Feature related Functions ...................................................................... 7-37
7.5
FEATURE: MANIPULATION OF DATA ................................................. 7-38
7.6
GENERAL SETTINGS OF FEATURES .................................................. 7-38
7.6.1
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Definition ................................................................................................ 7-38
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1-3
Introduction
7.6.2
Details and Options ................................................................................7-39
7.7
GENERAL SETTINGS FOR CALCULATIONS ......................................... 7-40
7.8
SETTINGS FOR DISTRIBUTIONS ........................................................ 7-40
7.8.1
7.8.2
7.8.3
7.8.4
7.8.5
7.8.6
7.8.7
7.8.8
7.8.9
7.8.10
7.8.11
7.9
Additional Parameters ............................................................................7-41
Distribution Types...................................................................................7-41
Normal Distribution .................................................................................7-42
Log-Normal Distribution..........................................................................7-42
Folded distribution ..................................................................................7-43
Rayleigh distribution ...............................................................................7-43
Weibull Distribution.................................................................................7-43
Standard .................................................................................................7-44
Regression .............................................................................................7-44
Line Offset-to Centre ...........................................................................7-44
Offset...................................................................................................7-44
SETTINGS FOR CAPABILITY INDICES ................................................. 7-45
7.9.1
7.9.2
Definition.................................................................................................7-45
Options ...................................................................................................7-45
7.10
TARGET SETTINGS ......................................................................... 7-45
7.11
PROCESS CONDITION ..................................................................... 7-46
8
Analyse: part related.............................................. 8-47
8.1
THE MENU ..................................................................................... 8-47
8.2
SUMMARY ...................................................................................... 8-47
8.2.1
8.2.2
8.3
PARETO DIAGRAM .......................................................................... 8-48
8.3.1
8.4
8.5
Definition.................................................................................................8-48
Colour Settings of Process Study...........................................................8-48
ERROR DISPLAY ............................................................................. 8-49
8.5.1
8.6
Part Monitor ............................................................................................8-49
SCATTER GRAPHICS OF TWO FEATURES .......................................... 8-49
8.6.1
8.6.2
8.6.3
8.6.4
1-4
Error Rate of Features............................................................................8-48
PROCESS STUDY............................................................................ 8-48
8.4.1
8.4.2
9
Part related functions..............................................................................8-47
Contents of the Summary.......................................................................8-47
X-Y-plot...................................................................................................8-49
Scaling for Scatter Graphics...................................................................8-50
Colour Definition .....................................................................................8-50
Error Causes in Scatter Graphics...........................................................8-50
Analyse: feature related......................................... 9-51
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Introduction
9.1
CALL SINGLE VALUE LIST................................................................ 9-51
9.1.1
9.1.2
9.2
HISTOGRAM ................................................................................... 9-52
9.2.1
9.2.2
9.2.3
9.3
Options of Histogram ............................................................................. 9-52
Settings for Histogram ........................................................................... 9-53
Colour Definition for Histograms ............................................................ 9-53
CONTROL CHART ........................................................................... 9-54
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.4
Options of Control Charts ...................................................................... 9-54
View of Control Charts, Colours and Symbols....................................... 9-55
Settings in Control Charts ...................................................................... 9-56
Information about the Group .................................................................. 9-57
Calculation of Control Limits .................................................................. 9-59
Key-In of Control Limits.......................................................................... 9-59
PROBABILITY NET........................................................................... 9-60
9.4.1
9.4.2
9.5
Definition and Options............................................................................ 9-60
Colour Definition .................................................................................... 9-60
STATISTICAL VALUES ...................................................................... 9-61
9.5.1
9.5.2
9.6
Definition ................................................................................................ 9-61
Statistical Values / Additional................................................................. 9-61
STATISTICAL TESTS ........................................................................ 9-62
9.6.1
9.6.2
9.7
Results of Statistical Tests..................................................................... 9-62
Capability Indices ................................................................................... 9-63
SUBLOT SUMMARY ......................................................................... 9-64
9.7.1
9.7.2
9.7.3
9.7.4
9.7.5
9.8
Calling Sublot Summary ........................................................................ 9-64
The Arrangement of the Sublot Summary ............................................. 9-64
To display the sublots according to the group number .......................... 9-64
To consecutively summarise same sublots ........................................... 9-64
Summarise structured sublots in a sequence........................................ 9-64
DISTRIBUTION ESTIMATOR .............................................................. 9-65
9.8.1
9.8.2
10
Delete Groups of Measured Values....................................................... 9-52
Settings for Single Value List ................................................................. 9-52
The Dialogue Window............................................................................ 9-65
The procedure........................................................................................ 9-66
Measurement Data ............................................... 10-67
10.1
THE MENU.................................................................................... 10-67
10.2
CHANGE DATA ............................................................................. 10-67
10.3
ADD DATA.................................................................................... 10-67
11
Small Tool Measurement..................................... 11-68
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Introduction
11.1
SMALL MEASURING DEVICES......................................................... 11-68
11.2
SELECTION OF THE MEASURING TASKS.......................................... 11-68
11.3
MEASURED VALUES FROM MEASURING DEVICE.............................. 11-69
11.3.1
11.4
MEASURED VALUES VIA KEYBOARD INPUT ..................................... 11-71
11.4.1
11.5
The Dialogue Window .......................................................................11-72
MEASURED VALUES WITH CALCULATION OF FORMULA .................... 11-74
11.5.1
11.5.2
11.6
The Dialogue Window: symbols and options ....................................11-69
The Function .....................................................................................11-74
The Dialogue Window .......................................................................11-74
MEASURED VALUES VIA TABLE ...................................................... 11-75
11.6.1
The procedure ...................................................................................11-76
11.7
MARKER SELECTION: FORCED DURING THE MEASUREMENT ............. 11-76
11.8
COMPLETE MEASURING TASK ....................................................... 11-76
11.9
DRIVER NOT FOUND ...................................................................... 11-77
12
Filter for Data........................................................ 12-78
12.1
DATA SELECTION ......................................................................... 12-78
12.2
TIME FILTER ................................................................................. 12-78
12.3
FURTHER FILTER OPTIONS............................................................ 12-79
12.4
SELECT SHIFT .............................................................................. 12-80
12.5
MAXIMUM NO. OF GROUPS ........................................................... 12-80
13
1-6
Output of Statistical Data .................................... 13-81
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Introduction
1
Introduction
STATPAK-Win is a program for the evaluation of measured values and the
statistical process control.
Different measurement devices can obtain the measured values.
All evaluations are immediately updated after a change in the data
set.
STATPAK-Win archives all measured data within COSMOS. The
program is based on a special data structure, which guarantees a
high degree of data security and high access speed.
STATPAK-Win performs all statistical calculations. You can apply
different commonly used company standards.
STATPAK-Win allows treating and evaluating several parts and
features simultaneously and independently of each other.
A sophisticated system of access rights protects sensible data
against unauthorised manipulation.
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1-7
Functions: parts-related
2
Functions: parts-related
This menu proposes basic treatment functions belonging to the program as a
whole.
Via the menu bar, the following functions are offered:
Parts
• Quit STATPAK-Win and return to PartManager
• Selection of the last ten parts used
Settings
• Severity of Errors
• Lists
Reports
• Error Report
• Capability Report
• Summary of all Parts
Windows
• Tile Windows
• Store Window Positions
quit the program and return to PartManager.
tile all open windows on the screen. You can tile according to your ideas
(tile horizontally, tile vertically, etc.).
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Functions: Summary
3
Functions: Summary
3.1
Parts
The menu "Parts" enables STATPAK-Win to quit and return to the
PartManager. Additionally, a list with the last ten parts processed is displayed.
However, you only can select a part from this list and load it if this
part is on the current parts list in the PartManager.
3.2
Tile Windows
In the menu "Windows", a series of functions is at your disposal, by which you
can tile windows on the screen according to your wishes. Special options are
proposed in STATPAK-Win with the "Settings for Display" (see picture
below).
Each of these symbols is equipped with a bubble help. If you pass over the
symbols with the mouse pointer, you are immediately informed about which
display method is concerned.
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3-9
Functions: Summary
3.2.1
Window List
Furthermore, you have the possibility via the function "Windows..." to display a
list of windows. Via different buttons, you can close, activate windows from
here etc. The buttons are labelled and thus self-describing.
At the bottom, all activated windows are listed again. With a click on one of the
windows, you get the window into the foreground of the screen.
3.2.2
Other Menu Bar - Other Window Menu
Every time you have activated an analysis window, for example "Error
Report", you get a different menu bar. The contents (menus) of the menu bar
depend on the analysis (e.g. process study) that you call.
Also the functions change, which are offered in the menu "Windows".
As a matter of rule, you can
store the position of the actual window, or
store the position as default. In this case, after that, those analysis
windows are displayed at the stored position belonging to this
analysis.
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Setting Options
4
Setting Options
4.1
Settings
In the menu option "Settings", you can use further options, which have effects
on the subsequent STATPAK-Win use.
In the menu option "Error Ranking", you can determine the order
of rank of the control chart violations on your own.
The rank is effective for forced marker input when measuring, and
for display functions.
In the menu option "Lists", you can pre-define contents for the lists
in the general feature settings (add variable and attribute
features).
4.2
Error Ranking
The dialogueue window "Error Ranking" is displayed in the STATPAK-Win
main window in the menu bar "Settings/Error Ranking".
You can assign a rank to the control chart violations. You can remove
individual types of control chart violations from the list. This order is used for
the functions „Parts Monitor “ Marker Input during Measurement “.
In this dialogue window Mitutoyo offers a default, which, to our
experiences, is most frequently used.
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4-11
Setting Options
4.2.1
The Arrangement of the Dialogue window
In the column "number", the rank of the error type is shown.
In the column "error type", the thirteen types of errors are shown.
The presentation "without errors" is always positioned quite above
(see line "OK").
In the column below the symbol for colour settings you can
assign a colour of your choice to each error type.
In the column "*.BMP", you assign a graphical symbol to the error
type.
Notice:
You must decide whether you want the colour or the graphical symbol. If you
have enabled the two possibilities, the graphic always takes priority on the
parts monitor.
4.2.2
Remove an Error Type
Via the mouse, select an error type
Activate via mouse-click the function "Hide"
The removed error type is displayed in dark grey.
Via the function "Cancel", you enable this error type again in the
error ranking list.
4.2.3
Changing Rank
Via the mouse, select one of the error types
If you want to place the error type above in the error rank list,
activate the button "Above" via mouse-click.
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Setting Options
4.2.4
Colour Selection
Via the mouse, select one of the error types
Via double-click on the column with the colour setting
symbol, the colour setting is displayed
Select a colour and confirm with OK
4.2.5
Select Graphic Display
Via the mouse, select one of the error types
Through double-click on the column "*.BMP", open the dialogue
"File Selection"
Select a file and confirm by open command
If you have selected a diagram, but you do not want this to be
displayed, you can remove it via the button "No Bit Map".
If you have assigned a diagram and a colour to an error type, the parts
monitor displays the diagram and not the colour.
4.3
4.3.1
Network: Analyses automatically open
The Definition
With the dialogue window "Settings open analyses automatically" you can
determine, which analyses you want to assign to a part, which was transferred
from a measurement station to the network manager. The analyses are
represented immediately if you double-click at the network manager in the
"List of the transfers" on an entry of this list.
You reach the dialogue window "Settings open analyses automatically" in the
STATPAK-Win main window over the menu border "Settings / Network: Open
Analyses autom."
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4-13
Setting Options
4.3.2
The Window
In the window "Settings open analysis automatically" the feature-referred
analyses are displayed for you as switching surfaces.
Thus you proceed
You click "your" analyses on.
Selected analyses are represented with pressed in switching
surface.
In order to vote analysis out, you click on an activated analysis
symbol.
The analyses see you now not yet, but only if you a part in the "List
of the transfers" selecting.
4.4
Lists
In the STATPAK-Win main menu, you can create in “Lists” proposal lists for
variable and attribute feature names, nominal values, upper and lower
tolerances as well as units.
As editor the default is used, for example Notepad.
These lists are used then as proposal lists for edition of the
Feature Data.
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Reports
5
Reports
5.1
Reports general
In the menu "Reports", you can call analyses, which not only refer to one
part / feature, but to all parts with all features in the actual directory of
PartManager.
The error report is a report displaying in a list control chart
violations of all parts.
The capability report gives the capability and critical capability for
all parts, of periods you have defined before.
The summary of all parts makes possible a quick overview of the
most important features of all features for all parts.
5.2
The Error Report
You get an error report if you confirm the "Settings of the Error Report" with
"OK".
The illustration of the error report is viewed in tabular form with the following
columns:
column 1 indicates a continuous number.
column 2 indicates the part name.
column 3 indicates the feature name.
column 4 indicates the group number, which the group has in the
filtered data.
column 5 date/time indicates the time, when the group has been
measured.
The last column indicates the error which occurred in this group.
Here, if tolerance errors occurred, the number of measured values
in the group situated outside the tolerance limits are indicated as
additional information.
To have more clarity, the lines are underlayed in different colours. Depending
on the part, the colour changes from grey to white.
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Reports
5.3
Settings of Error Report
You come to "Settings of Error Report" from the STATPAK-Win main window
via the pull-down menu "Reports".
In the error report, the errors of all features of all parts selected and located in
a directory are listed in a table.
In the dialogue "Set Filters", you can determine the period and the errors to be
filtered.
5.3.1
Period
The selection of the period is similarly to structure of the standard filter.
Either you directly enter the start and the end date via the
symbol, or you
select one of the periods via the buttons, which are at your
disposal in the upper part of the dialogue.
Additionally, you still can select a shift via the symbol.
The shifts can be edited, respectively input in the PartManager in
“Settings” “Shift Periods”.
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Reports
5.3.2
Selection of Errors
The errors which can be filtered, are divided in three groups:
Tolerance errors: measured values are filtered, which are situated
outside the upper or lower tolerance
Error in the upper control chart:
•
larger than upper control limit
•
smaller than lower control limit
•
Trend
•
Run
•
Middle Third
The analyses depend on the settings made for each feature in the control
chart.
Error in the lower control chart:
•
larger than upper control limit
•
smaller than lower control limit
•
Trend
•
Run
The analyses depend on the settings made for each feature in the control
chart.
5.4
The Capability Report
In the capability report, the capability values and the critical capability
parameters of all features of all parts are summarised in a list. The capability
values are listed in a chart according to periods.
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Reports
5.5
Settings for Capability Report
In the main window of STATPAK-Win, you find the function "Capability Report"
in the pull-down menu "Reports".
Here, you can select the period the capability values are to be calculated for.
You may select between a free input, days, weeks, months, years, and shifts.
During the free input, the two capability values are only calculated for one
period. The start/end date must be input via the setting from/to.
Example 1
You want to calculate the capability values from 10.08.1998 to 15.08.1998.
This is a period of five days.
Select the period "Days" from the adjustment range.
Activate "Time Limit".
Via the symbol, set as time limit one day after the evaluation
period you want. In our example this would be August 16, 1998.
Notice: Always select for time limit the day after the period to be
evaluated. This way, you are sure that the last day of the
evaluation period is also included.
Enter 5 into the input field "Number of Periods". Five is meant to
be 5 days.
If the time limit is not selected in settings, in this example, the capability values
will be calculated for the last five days. The basis for the calculation of the
period is the computer-internal system time.
Example 2
You want to calculate the capability values for three months, from June to
August.
Select from the adjustment range "period", the months you want.
Activate "Time Limit".
Via the symbol, set as time limit September 1st.
Enter into the input field "number of periods", 3.
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Reports
5.5.1
Additional Filters
Via the filter "Shifts", you still can limit the time period filter.
Activate "Shift" and a chart outline about the capability values in the months
June, July and August is displayed; only the measured values from the
selected shift are used for the calculation of the capability values.
The time period filter "Shifts" is matched with the time shifts defined
in the PartManager. This analysis only works, if there are no
overlapping shift times.
5.5.2
Cp-Limit/Cpk-Limit
Through this option, you can set a limit value for the capability values. As soon
as you calculate a capability value for a feature, which is below the limit value,
the feature is specified in the list of the analysis capability report.
5.5.3
Maximum Number of Groups
An additional filter adjustment is the input of a maximum number of groups.
Here, for each adjusted period, only the defined number of groups for the
calculation of the capability values are called. Thereby, you can select between
the last and the first groups in one period.
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Reports
5.6
5.6.1
Summary of all Parts
Definition
The "Summary of all Parts" is a function in the STATPAK-Win main menu, you
can display via the pull-down menu "Reports" and the automatic call of the
dialogue "Set Filter".
The „Summary of all Parts“ makes possible viewing a quick summary of the
most important characteristics of all features for all parts.
5.6.2
Options
Via this SET dialogue "Set Filter", you can determine filter criterion for this
analysis. Confirm.
You can determine the number of the displayed columns in the table on your
own.
In the analysis menu, open the pull-down menu "Settings"
Activate the function "Columns"
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Network
6
Network
6.1
The STATPAK-Win Network
The STATPAK-Win Network offers the possibility to you, of entering data to
your parts at different network measurement stations. These data can
collected and analysed central at the network manager station. In addition all
computers, which want to operate you in a STATPAK-Win network, must
access on a common directory in your computer network. Your part directories
must be also network directories.
In the common directory ("\STNTRANS\") the data of the individual network
measurement stations become temporarily buffered. Then they are united by
the Network Manager.
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Network
6.2
Installation of the STATPAK-Win Network
To install a STATPAK-Win Network you must execute the following steps:
Start the installation program NETWORK.exe.
The program is on your COSMOS-CD in the directory "..\NETWORK\".
You acknowledge the suggestion of the installation program with
the "Ok" button or...
You select a directory with the button "Browse" that your network
directory is to become.
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Network
6.2.1
Selection of Operating Mode
If a COSMOS installation is found, the operating mode that is selected in the
"General Network Mode" will be set up.
No Network
With this adjustment you create STATPAK-Win as a single workstation. With
this setting your STATPAK-Win installation does not possess a network ability.
Network Manager
With this setting, you activate in STATPAK-Win the menu "network manager";
thus, you can collect the measuring results of the measurement stations and
get a summary of all stations (also faulty measurements).Specification to the
station number and the part directory is not necessary.
Network measure station
in the text field "Station Number" you enter the station number.
You make the selection whether you operate with a fixed or
selectable part directory (see in addition detailed under the topic
network measurement station also)
The installation program must be executed at least once at "any" of the
computers that should work in the network. Afterwards, you realize in the
PartManager (Menu "Settings/Presetting Programs/General") the setting of the
working method at each computer. The settings can be changed whenever
you want. You only have to take care that configuration of "Network Manager"
mode is not set up on several computers.
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Network
6.3
The Network-Manager
The network manager unites the results of the measurements of the individual
measurement stations and analyses them with the help of the statistical
analyses.
You start the network manager over the function "Network Manager". After the
start of the network manager the list of the transferred measurements is
displayed to you . If you created a Station Map, then this is additionally
displayed.
The function "Network Manager" is displayed, if you pursue
STATPAK-Win as network manager and you are in the part related
plane of STATPAK-Win.
STATPAK-Win is in the mode network manager, if you adjusted "network
manager" during the installation under the selection "general network mode".
In the status border of STATPAK-Win this operating mode is displayed to you.
Behind the operating mode symbolically a control lamp is represented:
Network-Manager ready
Measured values of a measurement station are
transferred into the original-part
A transfer is not possible, since the original-part
is opened at present
The symbol of the control lamp in the status line red represented if
an original-part with STATPAK-Win has been opened, without
STATPAK-Win is at the network operation.
the original-part with the STATPAK-Win network manager to be
opened
So that again measured values will transfer from a measurement station into
the original-part, you must release the original-part again.
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6.4
List of the transfers
With this list you receive an overview of all transfers of the measurement
stations to the network manager.
The representation of the list of the transfers takes place in tabular form with
the following columns:
The column "No." contains the sequential number of the transfer.
In column 2 the result of the measurement is displayed as a colour
status. The colours determine you in the dialog "error ranking".
The status refers to the feature of the part with the heaviest error.
In the column "Station" the number of the STATPAK-Win
measurement station is displayed witch with this part has been
measured.
In column 4 the part name of the transferred part is displayed.
The columns "Date/Time" indicate the time, when the group
became to transfer.
The column "directory" displays the directory of the original part.
6.4.1
Delete List of Transmissions
You can delete the list of transmissions. Yet, there are restrictions: When
working with a factory plan, first, all stations must be repositioned, that means
the indicators for good/bad transmissions must be reset to „0“. Otherwise, you
get the message that it is not possible to delete the list.
6.4.2
Start the analysis of a part
If you double-click on an entry of the list, then the analysis of the data of this
part is started automatically. If the transferred data have an error status,
additionally the analyses of the feature with the hardest error status are
started automatically. Which analyses to be started, you put in the menu to
"Network: Open analyses autom." firmly.
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6.5
Station Map
The station map will displays to you, how many error free and how many
incorrect measurements the measurement stations executed. With the station
map you can represent schematically the position of your measurement
stations. To use the station map, you first have to activate it (see details of
topic "Activation Station Map".
The symbol of a measurement station is structured as follows:
The number over the diagram is the number of the measurement
station
Depending upon error condition of the measuring data a happy or
a disappointed diagram is displayed.
Underneath the diagram on the left the error free measurements
are displayed to you and on the right the incorrect measurements.
If you double-click on the symbol of a measurement station, the list of the
transfers of a measurement station is opened.
6.5.1
Activate Station Map
According to the network installation the file NETMAP.USR is in the directory
"..\STNCONF". In this file, you find the settings for activating the factory plan
and the Configuration of the Station Map .
For further details, refer to the abovementioned topic.
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6.6
Configuration of the Station Map
Further down in this assistance you see a single dump from the example file
"NETMAP.BSP": In this file the following adjustments are contained:
As background picture the file "FLOOR.BMP" is used.
In the example two measurement stations are installed.
The measurement stations use the numbers 1 and 2.
In the presetting (ShowMap=0), the factory plan is not activated. Only
if you select the setting ShowMap=1 in the "Main" area (see table
below), the factory plan is activated.'
If later on, you do not need the factory plan any more, select
ShowMap=0.
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NETMAP.USR
[Main]
Area indication
MainPict=FLOOR.BMP
Background picture
NoOfFields=2
Number of measurement stations
Font=Arial
Character font
FontHeight=10
Character size
ShowMap=1 (must be entered)
activate the station map; 0 = deactivate
[Field#1]
Area indication
idStation=1
Number of the measurement station
GrfRect=120,508,143,82
Position
ProRect=10,74,12,12
Position in per cent (X, Y, B, H)
PicFile_iO=B_SmileG.Bmp
Diagram file for property
PicFileniO=B_SmileB.Bmp
Diagram file for badly
GoodVals=0
Number of measurements within tolerance
BadVals=0
Number of measurements outside of
tolerance
The terms left of the equals sign and the grey represented lines
should not be changed. The area indication [Field#n] modify only, if
you want to install a new measurement station
The necessary bitmap files are in the network directory and the "..\STNPIC"
folder. If you use your own bitmaps, you also have to copy them into this
directory.
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6.6.1
Further measurement station
Increase number of "NoOfFields" within the area "[ Main ]" by one.
Copy the area "[Field#n]".
Increase the area indication by one.
Enter the appropriate number new measurement station.
Modify the values of "ProRect".
The zero point of the station map is in the lower left corner.
6.7
List of the transfers of a measurement station
With this list you will get an overview of the transfers of an individual
measurement station. The structure and the functionality of this list is
essentially to the list of the transfers of all measurement stations
If you double-click on the symbol of a measurement station of the hall
plan, the list of the transfers of the appropriate measurement station
corresponds is displayed.
6.7.1
Delete the list
In the following cases it can be meaningful to delete the list:
if you made a part change,
if you expect new measurements of a measurement station,
if modifications at parts made are or
tools changed, or
all analyses of all already measured parts are executed.
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6.7.2
The Procedure
Activate the window with the list of the transfers of a measurement
station.
Over the menu border "Analysis" and the function "Reset" you
delete the list of the transfers of a measurement station
There is the danger that the list is deleted immediately, if you release
the function "Reset". It is meaningful therefore to log the point in time
when you reset the list.
6.8
The Network Measurement Station
STATPAK-Win is in the mode network measurement station if you have set up
during Installation either the "Network Measurement Station" in the
select menu "General Network Mode”
or if you have selected in the „Settings/Presetting
Programs/General“ menu of the PartManager the Network
Measurement Station.
If you pursue STATPAK-Win as network measurement station,
editing functions (e.g. the filter function) are automatically inactive.
In the status border of STATPAK-Win you see, with which
measurement station you just operate.
Normally, at each network measurement station, you only can access data
that you have recorded there. In this case, however, it is possible to simply
click the " Access to all Data of the Part".
You have with each network measurement station only access to the data,
which you have entered there. However several network measurement
stations can be assigned the same measuring function for the same part. You
can interrupt and again take up the measurements of the network
measurement stations as you like.
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6.8.1
Selectable part directory
This method is suitable, if the parts on the measurement station, which can be
measured, change frequently.
If you want to start a measurement, change in the PartManager into the
original part directory and start the measurement.
At the network operation the original part directory must be a network
directory.
The results of measurement are temporarily stored also here, until the network
manager transfers the data into the original part. You access however during
the reading of the part information and the measuring function on the original
part.
Advantage
You can select the part directory freely.
You do not have to create a part directory.
If you make modifications at the original part, then these are
immediately effective at the measurement stations, which access
directly on this part.
Disadvantage
You must know in which directory the part is located, which you
want to measure.
6.8.2
Fixed part directory
You apply this method, if at this network measurement station only a limited
number of parts are measured and the parts infrequently changed.
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6.8.3
Set-up a fixed part directory
You can either
manually select a part directory
or determine a part directory in which the program automatically
changes afterwards. If you want this option, you must install a part
directory by yourself:
•
The "Fixed Part Directory" must be set up in your network
directory in the "..\STN_\" sub directory.
•
You designate the fixed part directory like the appropriate
measurement station of your network.
Example: If you want to create a fixed part directory for the measurement
station 5, then you create the sub directory "5" in the directory "..\STN_\".
Advantage
You do not have to look your parts up, since a copy of each part is
at the part directory of the measurement station.
Disadvantage
When there are modifications at the original part, the directories of
the measurement stations, which use this part, must be
synchronised.
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7
Main Window: feature related
7.1
The Menu
In the menu option "Part", you find important options for the work on your part.
Via the menu option “Notepad”, you can refer to some information.
Via the menu option "Open Automat. Analysis", you can determine
analyses, which are displayed each time you call the part.
In addition, you have the possibility to print the feature list, all open
analyses or special reports.
7.2
Open Automatic Analysis
With the dialogue window „Open Automatic Analysis " you can determine
which analyses you want to assign to a part, that is when starting the part
next time. The analyses will be represented then immediately after each
restarting of this part.
7.2.1
The Procedure
In the PartManager (parts list), click on the part, then on the
icon (see above) and the dialogue window „Feature List“ in
STATPAK-Win is displayed.
Via the menu bar ("Part") and the "Open Automatic Analysis“
function, the dialogue window „Open Automatic Analysis" is
displayed by clicking the mouse.
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7.2.2
The Window
In the first line, you will find the icons for the „Parts-Orientated“ analysis. The
analyses in detail:
Overview
Pareto Chart
Marker Pareto Chart
Process Study
Parts Monitor
In the second line, you will find the Feature Designations in the
7.2.3
❏
left column and …
❏
on the right side the palette of the analyses.
Analyses in Detail
By clicking the mouse, you can activate the analyses. The analyses in detail:
.. Single Value List
Histogram
.. Control Chart
Probability Net
Statistical Values
Statistical Tests
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Setting for Capability Indices
Marker Pareto Chart
Sublot Summary
Usually, you confirm via Ok.
You cannot yet see the analysis displayed,
but only after restarting the part.
7.2.4
Default Settings
You can carry out default settings where all of the parts are assigned to
defined analyses.
Click on the „Standard“ (Default) button.
In the following dialogue window “Save Default Settings”, via the
analyses icons (see above), you obtain the same options as in the
“Open Automatic Analysis” window.
Click “Your” analyses and confirm via Ok.
7.2.5
Default
If you work, for example another part, you can call for this part the settings
(Default) you entered before with its features via the “Default” (Reset) button.
Open the part via the PartManager
Click on „Part / Open Automatic Analysis“ in the menu bar of
STATPAK-Win and
In the “Open Automatic Analysis” window, click “Default” (Reset).
7.2.6
Deselect
You can deselect an individual analysis by clicking on the activated analysis
icon.
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7.2.7
Select and Deselect in a Block
If you manipulate the mouse button and Shift at the same time, you can
activate (deactivate) all analysis icons at once. All analyses will be selected,
respectively deselected then for the corresponding feature.
If you manipulate the mouse button and the Control (Ctrl) at the same time,
you can activate (deactivate) the whole feature column. The selected analysis
will then be selected, respectively deselected for all.
7.3
Definition of Features
When defining features, you have two options:
Add a new feature or
Change an existing feature.
Delete existing features.
If you want to add a new feature, select in the menu option “Feature” either
the menu option “Add Variable Feature” or the menu option “Add Attribute
Feature”. Furthermore, in the menu option “Feature”, you can
delete features,
realise calculation settings,
realise settings for capability and
activate setting of target values for each feature.
Change a feature either,
via double clicking on the feature, or
via the menu “Feature / Definitions”.
A new window with the actual data of the feature is displayed then.
These can be modified as usual.
To delete a feature, select in the menu “Feature“ the function “Delete
Feature”.
When deleting a feature, all information concerning the deleted
feature is lost, the measuring tasks included.
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7.4
Functions of the Feature Window
Here, you get all the functions concerning the selected part. Furthermore, you
can access all the features from here, and also the feature related to General
Settings for Features. All functions can be activated via pull-down menus;
some of them - the most frequently used ones - can be directly accessed with
the icons via the toolbar.
You can directly activate:
7.4.1
Part functions
Summary
Pareto Chart
Marker Pareto Diagram
Process Study
Scatter Graphics of two Features
7.4.2
Feature related Functions
Control Chart
Histogram
Single Value List
Probability Net
Statistical Values
Settings for Capability Indices
Statistical Tests
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Marker Pareto Chart
Small Tool Measurement
Add Data
Filter for Data
You can only start a function if you have selected a feature. That
does not apply for
7.5
•
setting of a filter for direct data selection,
•
call of the summary and
•
Pareto Diagram.
Feature: Manipulation of Data
In this menu, you can manage the feature-related data. You can print the list
of features, add and delete features.
Furthermore, you can define the settings for control charts, histograms, and
for
General Settings of Features
General Settings of Calculations
Settings of Capability Indices
7.6
7.6.1
General Settings of Features
Definition
This menu allows all the data of the feature to be changed. All task-orientated
settings for the individual feature are made here.
The feature name is the main characteristic of the feature; it identifies the
feature, also when exchanging data with other programs. Therefore, it must
appear only once. If you input a name, which is already given to a different
feature, the program does not allow you to exit this menu; the cursor returns to
the name input.
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7.6.2
Details and Options
The units can be selected from a table; pre-defined units are "mm"
and "inch". This table can be extended by the customer, e.g. in
order to include weight measurement from a balance.
Normal features, representing a length, have two specification
limits; i.e. upper as well as lower limit is defined. This is also taken
over by the program. If the feature is a value for form or position
(e.g. roundness or parallelism), the smallest possible value is 0,
and no value can be lower than that. Such features are called
"zero limited", and they require a different mathematical treatment.
As the program cannot recognise this feature, the operator
has to input it via the radio button.
Furthermore, there are features of which only one tolerance limit
is given (e.g. strength of extension, where only the lower value is
interesting). In such a case, a different way of calculating has to
be applied. Therefore, the program needs this information input is
done with via the radio button.
Please note that for features of which only one tolerance limit is
given, no critical capability index is output. If no tolerance limit is
given, no capability index can be calculated at all.
The group size can only be changed as long as there are no
measured values for the feature. If it has to be changed, the data
have to be deleted before.
The number of decimal places is not only important for the display of
the measured data, but also for the tolerance comparison and the
classes of a histogram. E.g. a value of 30,03mm would be within
tolerance if the upper limit is 30,0mm, but out of tolerance if the limit
is 30,00mm, because the actual value would be rounded to 30,0mm
in case of one decimal place.
These settings can be the default for all the following features to be
created. By pressing the button "Pre-setting" these default values
can be achieved for any other new feature.
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7.7
General Settings for Calculations
You can select between different methods for the calculation of the control
limits; just press the corresponding radio button.
The "Confidence Level for Tests" (alpha) designates the statistical probability
that the test accepts the hypothesis (the zero hypothesis H0), provided the
data pool actually meets the assumption. In other words, 100-alpha designates
the probability that the hypothesis is erroneously rejected.
As type of analysis, you can have either machine or process capability.
Select "Machine Capability", if the data are collected for an initial
study to determine the capability of the manufacturing unit.
Select "Process Capability" if you have to display the
manufacturing process.
The selected type of analysis also exerts influence on collecting measured
data; the data are marked either as "Cm data" or "Cp data". When using Filter
for Data, this can be used as a criterion for selection.
7.8
Settings for Distributions
When the window with the feature list is activated, you will find in the pulldown menu "Feature" the function " Distributions settings".
Five distribution models are shown:
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•
Normal
•
Log Normal
•
Folded
•
Rayleigh
•
Weibull
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7.8.1
Additional Parameters
Here you define the distribution model by means of which the feature can be
described. Depending on the distribution model chosen, you can additionally
enter various parameters.
7.8.2
•
Standard
•
Regression
•
Line offset to centre
•
Offset
Distribution Types
Where measured values are already available, the distribution estimator can
serve as a means to help you make your decision. The decisive factor for the
"coefficient of determination" is, as a rule, the highest percent figure. You
activate this window via the menu "Analysis" and the function "Distribution
Estimator".
The distribution models with the parameters associated thereto as selected in
the window "Distributions settings" are used for the calculation of capability
indices and expected error portion. The suitable probability net is selected, as
well.
You select your distribution.
In the case of "Normal Distribution" you can make your choice
between the calculation method "Standard" and "Regression".
Where many random factors (material, coolant) have additive
effect on the feature, you should use the model "Normal
Distribution". A wide variety of statistical tests and calculations are
based upon this model.
Having selected "Log-Normal Distribution" you can, furthermore,
enter an "Offset".
You use the "Log-Normal Distribution" in cases where many
random factors (Temperature) have multiplicative effect on the
feature.
The distribution models "Folded" and "Rayleigh" permit either the
calculation method "Regression" or "Line offset to centre".
•
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In the presence of a normally distributed feature with a mean
value coming close to zero, you select "Folded". In performing
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Main Window: feature related
the measurement the sign will be ignored.
Example: One-dimensional position tolerance.
•
You select "Rayleigh" in cases where the measured values are
scattered in the plane around the zero point and the scatter of
the measured values in each co-ordinate axis is normally
distributed.
Example: Unbalance.
The distribution model "Weibull" can be calculated only using the
"Regression Method".
You use the Weibull distribution in particular for describing life time
tests and other extremes (high water). Due to the polymorph
distribution density, the Weibull-type distribution adapts well to the
measured values.
7.8.3
Normal Distribution
Normal Distribution, also known under the term "Gaussian distribution" or
"normal distribution" is the most important continuous probability distribution.
When you normalise each of the probability functions "f(x)", i.e. when you
scale the x axis such that the mean value is 0 and the standard deviation is 1,
you obtain as a limit function a bell-shaped curve, the so-called Gaussian
distribution.
7.8.4
Log-Normal Distribution
The Log-Normal Distribution is the application of the Normal Distribution with
logarithmic measured values. It is assumed that the logarithmic measured
values are normally distributed. Calculation methods available: Standard,
Regression; the Offset has to be specified.
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7.8.5
Folded distribution
The distribution of measured values normally distributed in itself is described
by the "Folded" (normal) distribution). For this purpose, you must watch the
deviation of the measured values from the total mean value and, on top of
that, drop the sign (i.e. establish the amount based upon the deviation of the
measured values from the mean value).
In the SPC, this computation is, however, not performed while
evaluation takes place, but is a result of the collection of measured data
or of the definition of features:
you record the (one-dimensional) deviation from the preset value
without memorising the direction. Consequently, the Folded distribution
allows a good description of the measured data only in cases where the
measured points (considering the sign) do not only feature normallydistributed scatter, but where also their mean value deviates only
slightly from the preset value.
Calculation methods available: Regression (the Offset is an estimated figure of
the calculation), "Line offset to centre" (the Offset has to be specified).
7.8.6
Rayleigh distribution
In fact, the measured values feature scatter in two directions (i.g. in a plane).
The scatter of the measured points in each direction can be described using
the normal distribution method. If you record only the distance from the mean
value in every direction, the scatter of these distances will be described by the
Rayleigh distribution.
Consequently, the measured data can be described adequately by means of
the Rayleigh distribution only in cases where not only the scatter of the
measured points (considering the direction) is normally distributed, but where
the measured points (considering the sign) do not only feature normallydistributed scatter, but where also their mean value deviates only slightly from
the preset value.
Calculation methods available: Regression (the offset is an estimated figure of
the calculation), "Line offset to centre" (the offset has to be specified).
7.8.7
Weibull Distribution
The Weibull analysis constitutes the classical reliability analysis or the
classical life time diagram and is of great importance in particular in
automotive industry. The "characteristic life time" and also a determined .
"failure probability" of certain components or building modules can be deduced
from the so-called Weibull net. It proved to be beneficial to take the cumulative
distribution of the failures as basis.
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The Weibull distribution is a special form of distribution which is particularly
suitable for this application. Generally speaking, Weibull distribution is an
exponential distribution. That reason for the use of this method of
representation is, that
•
•
•
•
7.8.8
- plenty of distribution forms can be shown using the Weibull
distribution,
- the Weibull distribution allows easy mathematical handling,
- time-dependent failure features appear as a straight line, and
- it has proved its efficiency in practice.
Standard
By "Standard", we understand here the simple estimation methods (e.g.
calculation of the standard deviation using the square deviations from the
mean value).
7.8.9
Regression
Under "Regression" the computer enters the measured points (in graphic
form) into probability nets associated hereto and calculates a compensating
straight line. Thus, you infer the statistical characteristics. The regression
procedure is based upon the method of the smallest square distances.
7.8.10
Line Offset-to Centre
In an unchanged probability net a straight line is defined by (-1) * offset and
the centre of gravity of the measured points.
In cases where the offset is known, e.g. as a systematical error of the
measuring device, and where said offset is to be included into the calculation
of the Amount Distribution, you select "Line offset to centre".
7.8.11
Offset
The "Offset" is a constant term which is added to each measured value prior
to being used for statistical computation.
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7.9
Settings for Capability Indices
7.9.1
Definition
You can utilise the calculation of capability indices in STATPAK-Win for
your specific requirements.
The following methods can be applied:
7.9.2
Options
7.10
❏
Change the estimation of sigma for the calculation.
❏
Input the limits of the capability indices.
❏
Select the number of groups for the preliminary process capability
(process potential) (Pp/Ppk). As long as a few of groups are
available for this figure, the Pp/Ppk is calculated; after that, the
calculation shows Cp/Cpk.
❏
Furthermore, you can specify the circumstances where the
capability is not output at all. This disables all output of
capabilities, also on the printer.
Target Settings
If the window with the feature list is activated, you can see in the pull-down
menu "Feature" the function "Target-Settings". In the window belonging to it,
the following components for the target can be set:
The target is the medium tolerance; the value is indicated in grey
in the numerical field.
The target is freely defined; you can enter the value in the
numerical field.
The target can be displayed in the control chart, the histogram and the
probability net. Furthermore, we need it for the calculation of MC and Cpm.
These can be displayed Statistical Values" if you have selected it accordingly
under "Extra".
Notices:
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•
The target is only used for variable features.
•
Only values within tolerance limits are allowed.
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Main Window: feature related
7.11
Process Condition
A tool change or tool erosion can affect the measurement data. In these
cases, the points will make a clear bound on the Xbar- or X-trace of the control
chart. In order that the control chart does not violate the control limits, you can
mark the feature in the "Process Condition" dialogue window and indicate an
additional Xbar spread. At the next calculation of the control limits, the Xbar
control limits are increased by this value.
Activate the "process condition" dialogue window via the "Feature" menu and
in the pull-down menu by click on the function.
What is important to know
If the CNOMO or Renault specification is selected, you cannot opt
for a special process condition. You must set up the "Normal
Distribution" and the "Standard" calculation.
The additional Xbar spread induces capability values below the
limits.
In a general chart (with reference to R() or S()) this value is used
for the X control limits and the capability calculation.
You should disable the Run and Mid3 tests, when you have tool
erosion (obviously Trend of mean values), also deactivate the
Trend test.
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8
Analyse: part related
8.1
The Menu
From this menu, all evaluations can be accessed. There are two types of
evaluations; those belonging to a specific feature, and evaluations affecting all
the features of the actual part. The most important (and most frequently used)
ones also can be directly accessed via icons.
8.2
Summary
8.2.1
Part related functions
If you need a quick summary of all features of the actual part, you can
use this function in the analysis menu. The most important values are
displayed in a chart. You can define the contents of this table yourself; click on
"Settings" in the pull down menu (top bar) Contents of the Summary. There,
you find check boxes for the different items of the table.
The features can be sorted according to capability index, critical capability
index, or sequence number.
8.2.2
Contents of the Summary
Here, you can select which information you want to view in your summary.
Specify the following items by clicking the corresponding checkbox:
•
Nominal value
•
Tolerance limits
•
Standard deviation
•
Minimum Maximum
•
Capability indices
•
Number not OK
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Analyse: part related
8.3
8.3.1
Pareto Diagram
Error Rate of Features
The Pareto diagram represents the frequency of incidents in the
production process. We differentiate between the parts-related Pareto diagram
and the feature-related Pareto diagrams.
In the parts-related Pareto diagram, the error rate of the
individual features is represented. The features are arranged
according to the error rate in such a way that the feature with the
most errors appears in first position. Then follow, in decreasing
order, the features with fewer errors. Moreover, you can display
the used marker. The most frequently used marker appears first.
In the feature-related Pareto diagram only the most frequently
set markers of a feature can be displayed.
8.4
8.4.1
Process Study
Definition
In the process study, the arithmetic averages (Xb) of the individual features
inside the lower and upper limits are usually described. The process study is
informing about the process situation set in “+-n sigma” area.
8.4.2
Colour Settings of Process Study
There is no limit as for individuality when creating the analysis windows in
STAPAK-Win. Move your mouse pointer in one of the colour fields and,
keeping pressed the left mouse button; pull it into the colour you want to
change.
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8.5
8.5.1
Error Display
Part Monitor
The part monitor is an information window, which graphically displays the most
severe error (control chart violation) that occurred in the last measured group.
This information window can be manually displayed by calling the functions
“Analysis/Part Monitor” when the feature list is opened. In this case, all
features are taken into account.
The most important error type for you must be stipulated before in the Error
Ranking. Indicated is either the colour position assigned to the error or the
graphics.
What you must still know
If the parts monitor is automatically opened by a measuring task,
all groups measured from then are tested for the most important
error.
Only the features measured in the measuring task are considered.
8.6
8.6.1
Scatter Graphics of two Features
X-Y-plot
If you want to know whether there is a relation (dependence) between
two features, you can use the so-called "scatter graphics" to check this
assumption. Here, the individual values of each part give a mark in a graph;
the horizontal axis of the graphics is given by one feature, the vertical axis by
the other. If these points are scattered (distributed evenly over the plain), there
is no relation between the two features. If they form a line at an angle, the two
features are not independent of each other.
For the scatter graphics, you have the following options:
Exchange horizontal and vertical axis
Draw the specification limits
Draw the nominal value
Change the scaling
Re-define the colours
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8.6.2
Scaling for Scatter Graphics
In this dialogue, you can specify the limits of the horizontal and vertical axes;
the minimum and maximum values are taken for scaling.
8.6.3
Colour Definition
You can easily define all colours in your probability net. Put the mouse cursor
into one of the coloured fields and keep the left mouse button pressed when
moving it to the field where you want to have that colour (this is called "drag &
drop").
8.6.4
Error Causes in Scatter Graphics
If there is an error message instead of the expected scatter graphics, this may
be caused by one of the following reasons:
The number of data or groups is different for both features.
You have the same amount of data, but the two features have
different group sizes (only groups with the same size can be
compared).
If at least one of the features is attribute, you will also get an error
message.
You may have set a filter criterion where different numbers of data
are selected.
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9
Analyse: feature related
9.1
Call Single Value List
If you have the suitable user rights, you can change the single values in
the single value list. You can achieve this by a double-click on the line, which
you want to change.
When you "Delete Measured Values", the total group to which the
marked line belongs, is removed. The values cannot be restored (for more
possibilities to delete measurement data , also refer to this subject).
The function "Hide Data" exists in addition to exclude single values (for
example flyers) from the calculation. They are represented more brightly in the
single value list. All analyses (histograms, control charts capability indices) are
immediately updated. Via the following function, you can recover hidden data:
You can recover the hidden data by this function.
The function "Group Information" displays some statistical data about
the group. You can get this information either in the single value list or in the
Control Chart. If you want all the data (in the control chart, in the single value
list, and in the group information) refer to the same data, click the symbol
in the dialogue window of the group information.
You can configure the contents of the single value list. Click the pull-down
menu "Settings" and select Settings for Single Value List. Here, you can
configure the contents of the list through the checkboxes. The sequence of the
items, however, cannot be modified.
Furthermore, you can display information being of the same nature for all
measured values of a group, (e.g.: marker, sublot) only once per group. Select
via the menu "Display / Inf. for each Measured Value".
The single value list can include up to 65535 measured values. If
there are more, STATPAK-Win displays an error message. In this
case, you should use a filter to reduce the volume of data.
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9.1.1
Delete Groups of Measured Values
In the single value list, you can delete in several ways different zones. Select
via the "Analysis" menu bar and the "Delete Data" function. You can delete:
selected groups marked in the single value list
all groups
a determined number of groups: In the "Delete all Defined Groups"
window, you indicate where to start deletion and the end.
You only can delete whole groups.
9.1.2
Settings for Single Value List
Here, you can configure the contents of the single value list according to your
requirements. This setting does not influence the contents of the printer output.
9.2
9.2.1
Histogram
Options of Histogram
The histogram is a graphical representation of the measured data. The
data are sorted into classes; the number of classes or their width can be set in
the dialogue window Settings for Histograms.
activate the Settings for Histograms , where you can modify the
layout of your histograms.
change the form and colour of the histogram.
trace the Gauss curve into your histogram, which corresponds to
the actual data (mean value and spread).
trace the Gauss curve into your histogram, which represents the
ideal distribution.
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suppress the output of the frequencies, the sum of frequencies,
and the relative frequencies (percentage of values in each class).
change font.
9.2.2
Settings for Histogram
Here, you can define the layout of your histograms.
Basically, there are three methods how to define the classes of your histogram:
here, the limits are given by the tolerances (specification limits).
You can enter the number of classes in which this data range is
subdivided; additionally, the number of classes for the out-of-tolerance
data is entered.
use the minimum and maximum of the actual data to find the limits
of the histogram. You can enter the number of classes in which the data
range is subdivided. However, as the scaling of the histogram depends
on the actual data, it is not easy to compare different distributions, if this
type of scaling is selected!
here, do not enter the number, but the width of the classes. The
necessary number is calculated according to the actual data range.
9.2.3
Colour Definition for Histograms
You can easily define all colours in your histogram. Put the mouse cursor in
one of the coloured fields and keep the left mouse button pressed when
moving it to the field where you want to have that colour (this is called "drag &
drop").
If you want to view the histogram downwards, click here.
If you want to view the histogram upwards, click here.
This gives you a 2D view of the histogram.
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9.3
9.3.1
Control Chart
Options of Control Charts
The control chart is one of the most important means for a graphical
overview of the process. STATPAK-Win offers a variety of possibilities for the
layout of the control charts.
is giving you the Group Information of the selected group. You can also
get this information by a double-click on the group.
indicates the Calculation of Control Limits.
is marking the single values in the control chart.
activates the View of Control Charts.
draws the line for the target value in the control chart.
draws the centre line in the control chart.
allows you to change the font style for scaling.
changes the scaling.
What you should know
You can switch off the toolbar in the menu "View".
You can store the window position for the actual control chart
only, or you can store it as default for all.
If you have activated the control chart from a measurement task,
the window position is also stored in that task.
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9.3.2
View of Control Charts, Colours and Symbols
In this menu you can select, which symbols are used in which colours in your
control charts, and how the control chart violations are indicated. First, you
select the range of the control chart you want to change the symbol or colour
of. Select by double-click into the corresponding area.
The correspondance in detail
Xb points
The points are marking the mean values of the groups,
which are displayed if everything is Ok; i.e. if there are no
control chart violations.
Single Value
This symbol is shown, if you switch on the marking of single
values.
Trend
Ranges of the control chart, where a certain number of
mean values are continuously increasing or decreasing
Run
Ranges of the control chart, where a certain number of
groups are located on the same side of the centre line
Middle Third
Ranges of the control chart, where either too many groups
are situated in the middle third of the chart, or too few.
In Settings in Control Charts you define for each feature how many
groups or intervals are taken to detect a run or a trend. There, you can also
define the number of groups for the middle third calculation.
Xb out
Marks groups situated out of the control limits.
Single value out Marks single values situated out of the scaling limits of the
control chart. If the chart is scaled by the control limits, the
values out of the control limits are displayed in this form and
colour; if the scaling is done by the specification limits, the
values situated out of these are displayed this way.
Now you can choose the colour, the type,
and the size of the symbol in any order.
Proceed this way
Drag the colour or the symbol in the range of the control chart by
the mouse.
Increase or decrease the size of the symbol by a click on the
button "Larger" or "Smaller".
The area of the control chart is updated; thus you can immediately
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get a printing of the layout.
If the layout satisfies your requirements, store it by mouse click on
the "Ok" button.
9.3.3
Settings in Control Charts
Here, you define the scaling of the control charts and parameters for the tests
of violations.
the group number is taken for identification of the horizontal axis.
date and time of measurement are displayed as identification of the
horizontal axis.
suppresses identification of the horizontal axis.
you can switch off one of the queue.
You can change the height of the upper and lower queue by the scroll bar; it
changes the percentage of the area used for the two.
The volume of information displayed in the control chart can
be changed as follows
always displays the group information
displays the individual measurement values
traces a line at the centre of the specification limits
traces the mean line of all values
displays a grid
The number of groups to be viewed in a control chart can be freely selected
from 5 to 1000.
The scaling of the vertical axis can be done in three ways
input of values by keyboard
automatic scaling by the control limits
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automatic scaling by the specification limits
The tests for trend, run, and middle third are activated by the
push buttons
this activates the test for the middle third; if it is activated, the number of
groups taken as the basis for the calculation must be input. Suggested is the
number of groups in the control chart.
switch on or off the test for "Run".
switch on or off the test for "Trend".
For the tests of Run and Trend, the number of significant groups can be
calculated or
manually input.
9.3.4
Information about the Group
You get this window if you select the function "Group Information" either from
the control chart or from the single value list, or if you just double-click a group
in the control chart. You also can permanently switch on this information; this
is possible by the function Settings in Control Charts where you click on the
symbol for "Group Information".
The specific values of the group and the individual measurements are
numerically and graphically displayed.
Via the toolbar, you can realise the following functions:
has the following result: if control chart and single value list are
displayed at the same time, you can click a group in one of these two
lists, and the cursor of the other list jumps to the corresponding values.
Changes Date / Time of Group
Changes sublot of a group
Modifies the measuring data.
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The function "Hide Data" is used to exclude single measuring
values (e.g. flyers) from the calculation. They are represented more
brightly in the single value list. All analyses (histograms, control charts
capability indices) are immediately updated.
Via this function, you can make hidden measured values valid
again.
sets a marker for the selected group.
removes the marker of the actual group.
However, you can start most functions also through a double-click of the
mouse on the boxes concerned. Thus, the dialogue, for example to modify
measured values is displayed through double-click on one of the single
values, or the dialogue for marker input is viewed when double-clicking on the
marker box.
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9.3.5
Calculation of Control Limits
Here, you can choose how the control limits are to be calculated.
If the group size is one, you can choose between
The lower chart can either show the range
or
.
or the variance
.
This selection effects the calculation of the estimated value of
Sigma^, and subsequently the results of the capability calculation.
You should know
switches for input of control limits via keyboard.
activates the calculation of control limits. However, the new values
are not valid until you press OK.
The control limits are pre-set when the feature is created once again.
This pre-set can either be a percentage of the specification limits, or
be calculated using the critical capability index. The option of the preset calculation is done in the INI file.
9.3.6
Key-In of Control Limits
If it is not possible to have control limits of measurement values, you can also
enter them via keyboard, if you have already experience with the process.
Please, be aware that the calculated capability indices do not really mean
anything!
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9.4
9.4.1
Probability Net
Definition and Options
The probability net serves for the graphic verification of the assumption
that the scatter of the measured values can be described using the set
distribution model. Every distribution model has a characteristic co-ordinate
net. The position of the points around the regression straight line shows the
goodness of fit to the chosen distribution model. Provided that there is an ideal
distribution, you can also superimpose the regression straight line and change
over from distribution of the single values to the classical values, the
prerequisite for this being that normal distribution is set.
Instead of the individual measurement data, the classified data from the
histogram can be taken to illustrate the points into the probability net. In this
case, the value representing the class centre is actually traced.
9.4.2
Colour Definition
You can easily define all colours in your probability net. Put the mouse cursor
in one of the coloured fields and keep the left mouse button pressed when
moving it to the field where you want to have that colour (this is called "drag &
drop").
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9.5
Statistical Values
9.5.1
Definition
This function includes the most important statistical values. On the lefthand side, you see the values related to the single values, the right-hand side
comprises the values belonging to the group.
You can find further information and the statistical calculation in the Formular
Contents
In addition, you can see the capability indices.
9.5.2
Statistical Values / Additional
If you have activated the window "Statistical Values", you can find in the pulldown menu "Settings" the function "Extras". In the window belonging to it, you
can adjust the output of the values "MC" and "Cpm".
The value "MC" was has been taken from the Volvo factory specifications STD
5060,2. The MC value results from:
Deviation of the mean value from the target value, divided by the width
of tolerance. The division is multiplied by 100 per cent.
By this, MC is in proportion of nominal value deviation and tagged.
However, "Cpm" is always a positive value, calculated similarly as Cm. The
calculation, however, differs with regard to dispersion: In case of standard
deviation for the calculation of Cm, the deviations of the mean value are
added up.
The Cpm values have a bell-shaped distribution. At the target value, its
maximum is achieved. All the other capability indices have a linear distribution.
Since both values are essentially influenced by the target value, this is also
specified in brackets.
Notices:
•
In case of further features, these values are not issued.
•
For "MC", both tolerances have to be defined or must be determined
as 0/OT-limited (in the "Variable Feature Data" menu with the
"Feature" function),
•
for "Cpm" both tolerances must be defined.
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9.6
9.6.1
Statistical Tests
Results of Statistical Tests
This window shows the results of the statistical tests, which have been
performed for the actual feature. The table shows (f.l.t.r.)
the name of the test and the acceptation which is tested (zero
hypothesis H0)
the confidence limits for the confidence levels 95%, 99% and
99,9%. If upper and lower limits are given, you find two values. If
there are no limits, you find a '-'.
the calculated check value (e.g. R/s for the test of flyers according
to David-Hartley-Pearson)
the result of the test
The type and decimal places of the result depend on the test. If the test has
not been performed, this is indicated here.
The flyer test of Nalimov has two results:
"No flyer found" or
"Flyer(s) found". In this case, the lower line contains the number of
flyers.
Result column - upper line
The upper line of the other tests includes the determination. It depends on the
selected confidence level and the calculated test values, and is given in one of
the following four categories:
Probable: confidence level less than 95%; the assumption is
probably correct
Improbable: confidence level between 95% and 99%; the
assumption seems unlikely
Very improbable: confidence level between 99% and 99,9%;
assumption seems very unlikely
Extremely improbable: confidence level higher than 99,9%;
assumption seems extremely unlikely
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Result column - lower line
The lower lines in the result column remain empty if the test has not been
performed.
Kolmogrorow-Smirnoff and David-Hartley-Pearson Test:
•
If the acceptance is probable, the line remains empty.
•
If the confidence limits are exceeded, one of the following
messages appears:
•
1-alpha >= 95.00%; 1-alpha >= 99.00%; 1-alpha >= 99.90%
Wallis-Moore, Chi2 , F and Bartlett Test:
9.6.2
•
If the assumption seems likely, the lower line of the result
column includes the calculated significance level alpha (1confidence level); high numbers mean that the data come
closer to the ideal data.
•
If the assumption seems unlikely, the lower line of the result
column contains the calculated significance level 1-alpha, high
numbers mean that the data differ from the ideal data.
Capability Indices
This window indicates the actual capability indices of the active feature.
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9.7
9.7.1
Sublot Summary
Calling Sublot Summary
If the window with the feature list is activated, you find in the pull-down menu
"Analysis" the function "Sublot Summary".
In the sublot summary, all sublots of a feature are listed in a table.
9.7.2
The Arrangement of the Sublot Summary
In the column group number, the summarised groups are
displayed
In the columns "From / To" you can view the period, in which the
groups were measured
With a structured sublot, you find abbreviations on top of the list.
These abbreviations are taken from the sublot editor out of the
PartManager (menu "Settings").
With an unstructured sublot instead of these fields, only the sublot
field is displayed.
9.7.3
To display the sublots according to the group number
In the menu option "Settings", call the function "Classify according
to Group Number".
9.7.4
To consecutively summarise same sublots
Select the function "Summarise according to Sublot", if you have
worked with unstructured sublots
Then same sublots are displayed in the sublot summary, in a
subsequent order, independently of the group number.
9.7.5
Summarise structured sublots in a sequence
Via the mouse, mark the sublot field you want to assort
If you worked with structured sublots, select the function
"Summarise according to Sublot Field".
Then, the sublots of this field having the same entry are displayed
in a sequence, independently of the group number.
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9.8
Distribution Estimator
Once the window with the features list is activated, you will find in the pulldown menu "Analysis" the function "Distribution estimator".
The distribution estimator is intended to help you make your decision. The
criterion for decision here is the coefficient of determination. The coefficient of
determination tells you, how good is the adaptation of a distribution model to
the measured points.
In the dialogue "Distributor estimator", the distribution models are
shown with the calculation methods "Regression" and "Line offset to
Centre" only, as a coefficient of determination can be calculated
solely with these methods.
9.8.1
The Dialogue Window
The distribution models supported by STATPAK-Win are shown in
the column "Distribution".
The column "Calculation type" shows those methods of calculation
by means of which a coefficient of determination can be
established.
The lines "Folded" and "Rayleigh" provided at the column "Offset"
show a calculated result. In these two lines, you cannot
manipulate the offset.
In the rest of the lines, you can enter figures for the offset.
A double click on the line in question opens the window "Offset".
You enter the value in this window and confirm.
The value entered is taken over in the line "Offset".
In the column "Certainity" the square of the regression coefficient
is shown in percent. This value describes how good the measured
points are located e.g. on a compensating straight line in the
corresponding probability net.
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Via the three buttons in the bottom line you may
9.8.2
•
Calculate all distributions
•
Calculate the distributions selected, or
•
Take over the values.
The procedure
Select one of the distributions shown.
As a rule, you select the distribution with the biggest coefficient of
determination.
You confirm pressing "Accept".
In the subsequent window "Settings for Distributions" you may
• Select another distribution model once more,
• Store the last values as "Default", or
• Revert to "Restore".
Confirm your decision with "Ok".
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10 Measurement Data
10.1
The menu
In the "Data" menu, you find functions to record and change measurement
data. You can also find the "Add", "Filter" and "Small Tool Measurement"
functions in the tool bar.
Furthermore, you find
ASCII-Import; ASCII-Export
the output of the feature definitions and the single values in the
text format according to a layout format.
Delete all data of all features
Measurement of attribute sample features
10.2
Change Data
Here, you can change the actual values of the measurement data and the
sublot of the group. If you have changed data, all charts (histograms, control
charts) are updated as soon as you close this window.
If you change date, time, or sublot for one value, this change has an
influence on the whole group.
10.3
Add Data
You can directly enter data via the keyboard. It is not necessary to make
a task; the values are directly added to the actual part and feature.
The sublot can be up to 40 characters long.
If the measured data are within the tolerance limits, they can be
input via the scroll bar.
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11 Small Tool Measurement
11.1
Small Measuring Devices
"Measurement with small Measuring Devices" is comparable to the repeat
mode in GEOPAK-Win. The measuring tasks of STATPAK-Win conform to the
part programs in GEOPAK-Win. The Task Editor agrees with the Part Program
Editor in GEOPAK-Win.
Measurement with Small Measuring Devices allows you to carry out those
measurements that you have defined as measuring tasks in the Task Editor.
You can collect the measured values by means of small measuring devices,
keyboard input, calculation of formula or via input in the form of a table. In the
Task Editor, you assign to your features the corresponding data source you
want to collect your data with.
According to your measuring task, the following windows are shown:
Measured Values from Measuring Devices
Measured Values via Keyboard
Input of Measured Values via Table
Measured Values with Calculation of Formula
11.2
Selection of the Measuring Tasks
Using the symbol "Measurement with Small Measuring Devices", you
open the Selection Dialogue.
You mark your measuring task...
And confirm with "Ok".
The measuring task created previously with the Task Editor is
displayed.
This symbol shows you that the measuring task has been
interrupted.
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11.3
Measured Values from Measuring Device
You can collect the measured values by means of small measuring devices,
keyboard input, calculation of formula or via input in the form of a table.
Should you have received these data from a measuring device, you are
requested to proceed as follows.
Click on the symbol in the window "Features list".
If only one measuring task is defined, said task will be started
immediately.
Should you have defined several measuring tasks in the Task
Editor, you get to the window "Select Task" and confirm your
selection with "Ok".
11.3.1
The Dialogue Window: symbols and options
In the subsequent dialogue window the measuring task you have defined in
the Task Editor will be opened. This input dialogue will be displayed in
accordance with the settings you have made in the Task Editor.
As a rule, the measuring task will run automatically.
You can, at any time, stop the run of the measuring task, e.g. in
order to re-measure a cancelled measured value. Then, via a
mouse-click, you change over to the arrow symbols provided
between the active features and the channels. The active feature
is shown with a white background.
Clicking on "OK, you are requested to key in measuring values
until the requested number of values to be measured is reached.
Upon completion of the measuring task the data will be stored.
, The measuring means (in the present case a
vernier calliper) which you have selected when creating the
measuring task with the Task Editor is graphically shown below
the arrow symbols.
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The status of the measuring task is shown adjacent to the
settable symbol. Should you have opened more than one
measurement window (e.g. because the keyboard is active, as
well), you realise at a glance in which mode of operation you
presently are. The symbol shown above means, e.g., that you are
receiving measurement data from a measuring device connected
hereto.
When you see this symbol, the measurement of this
feature in the measuring task is either completed or the feature
has not been activated for measurement data pickup. In addition,
the dialogue background is shown in grey.
Below the keyboard symbol, there is the feature definition which
consists of the feature name, the nominal value, the group size
and the upper and lower tolerance.
The graphical tolerance sign for the last measured value is
displayed below the feature definition. If the measured value
comes close to the nominal value, the measured value will be
shown as a green dot. Any deviation from the nominal value which
is greater, but still within the tolerance, will be shown as a green
bar. Values not comprised within the tolerance band will be shown
in "red".
The feature list is shown, in tabular form, below the graphical
tolerance sign. From left to right you see: the measured value, the
group number, the number of the measured value within the group
and the position of the measured values in graphical
representation. Use the scroll bar to enable you to fully read the
table.
Below the scroll bar, you see the symbol "Request Data
from gauge". Clicking on this symbol causes the actual measured
value to be picked from the measuring device. The figure within
the symbol shows you the channel your measuring device is
connected to.
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Beside the symbol "Request Data from gauge" you are
shown the "Actual Number of Measured Values" and the "Number
of Values to be Measured". Via these buttons, you open the
dialogue associated herewith.
While this input is in action, the status box shows you this
symbol (on the left).
Use this button to clear the last measured value. To do this,
you have to acknowledge a safety request.
In the status box of the measuring task, you will then see
the symbol (on the left).
You complete the measuring task using the locking button. For more
details please refer to Complete Measurinbg Task .
11.4
Measured Values via Keyboard Input
You can enter the measured data, in particular, via the keyboard.
Click on the symbol in the window "Feature list".
If only one measuring task is defined, this task will be started
immediately.
Should you have defined in the Task Editor more than one
measuring task, you get to the window "Select Task" and confirm
your selection with "Ok".
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11.4.1
The Dialogue Window
In the subsequent dialogue window the measuring task you have defined in
the Task Editor is opened. This input dialogue will be displayed in accordance
with the settings you have made in the Task Editor.
As a rule, the measuring task will run automatically.
You can, at any time, stop the run of the measuring task, e.g. in
order to re-measure a cancelled measured value. Then, via a
mouse-click, you change over to the arrow symbols provided
between the active features and the channels. The active feature
is shown with a white background.
In order to restart the automatic run of the measuring task
after an interruption, you operate the button "Start Automatic
Keyboard Input". By doing this, you open the automatic request for
"Measured Value" input.
Clicking on "OK", you are requested to key in measuring values
until the requested number of values to be measured is reached.
Upon completion of the measuring task the data will be stored.
The measuring means (in the present case the
keyboard) which you have selected when creating the measuring
task with the Task Editor is graphically shown below the arrow
symbols.
The status of the measuring task is shown adjacent to the
settable symbol. Should you have opened more than one
measurement window (e.g. because input via keyboard and
measuring device is active), you realise at a glance in which mode
of operation you presently are. The symbol shown above means,
e.g., that you are receiving measurement data from the keyboard.
When you see this symbol, the measurement of this feature
in the measuring task is either completed or the feature has not
been activated for measurement data pickup. In addition, the
dialogue background is shown in grey.
Below the keyboard symbol, there is the feature definition which
consists of the feature name, the nominal value, the group size
and the upper and lower tolerance.
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The graphical tolerance sign for the last measured value is
displayed below the feature definition. If the measured value
comes close to the nominal value, the measured value will be
shown as a green dot. Any deviation from the nominal value which
is greater, but still within the tolerance, will be shown as a green
bar. Values not comprised within the tolerance band will be shown
in "red".
The feature list is shown, in tabular form, below the graphical
tolerance sign. From left to right you see: the measured value, the
group number, the number of the measured value within the group
and the position of the measured values in graphical
representation. Use the scroll bar to enable you to fully read the
table.
Below the scroll bar, you see the keyboard symbol.
Clicking on the symbol, you automatically open an input dialogue
by means of which you can enter data or measured values relative
to the feature.
Beside the symbol "Read Data from Keyboard" you are
shown the "Actual Number of Measured Values" and the "Number
of Values to be Measured". Via these buttons, you open the
dialogue associated herewith.
While this input is in action, the status box shows you this
symbol (on the left).
Use this button to clear the last measured value. To do this,
you have to acknowledge a safety request..
In the status box of the measuring task, you will then see
the following symbol.
You complete the measuring task using the locking button. For more
details please refer to "Complete Measuring Task".
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11.5
11.5.1
Measured Values with Calculation of Formula
The Function
You use the function "Measured Values with Calculation of Formula" in order
to calculate a measured value from one or several measuring values.
Click on the symbol in the window "Feature list".
If only one measuring task is defined, this task will be started
immediately.
Should you have defined in the Task Editor more than one
measuring task, you get to the window "Select Measuring Task"
and confirm your selection with "Ok".
11.5.2
The Dialogue Window
The dialogue window "Formula Calculation" can be regarded as the display to
show the results of other measuring tasks (e.g. readings from measuring
devices). Via the formula defined in the measuring task you can, for example,
calculate the element plane, based upon the measured feature length and the
measured feature width.
As the window "Formula Calculation" is a
window to display results or integral part of a measuring task, the
symbols at the left are shown inactive. The measuring task can be
interrupted only for such a task where the measured value had
been recorded.
The measuring means (in the present case the
diagram for the calculation of planes) which you have selected
when creating the measuring task with the Task Editor is
graphically shown below the arrow symbols.
Below the graphical sign, there is the feature definition which
consists of the feature name, the formula, the nominal value and
the group size.
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The graphical tolerance sign for the last measured value is
displayed below the feature definition. If the measured value
comes close to the nominal value, the measured value will be
shown as a green dot. Any deviation from the nominal value which
is greater, but still within the tolerance, will be shown as a green
bar. Values not comprised within the tolerance band will be shown
in "red".
The feature list is shown, in tabular form, below the graphical
tolerance sign. From left to right you see: the measured value, the
group number, the number of the measured value within the group
and the position of the measured values in graphical
representation. Use the scroll bar to enable you to fully read the
table.
Below the feature list table you are shown
the "Actual Number of Measured Values" and the "Number of
Values to be Measured". Via these buttons, you open the dialogue
associated herewith.
11.6
Measured Values via Table
For the quick collection of attributive features you use the input of measured
values via table.
Click on the symbol in the window "Feature list".
If only one measuring task is defined, this task will be started
immediately.
Should you have defined in the Task Editor more than one
measuring task, you get to the window "Select Measuring Task"
and confirm your selection with "Ok".
In the subsequent dialogue window "Input by Table" the measuring task you
have defined in the Task Editor is opened.
The table is structured as follows:
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•
The first line shows the positions of the individual measured
values within the groups. The displayed number, e.g. 2/3 means:
"Second group, third measured value".
•
The feature name is shown in the first column. The line behind the
feature name shows you the attribute of this feature.
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11.6.1
The procedure
Example: a random check performed on a part shows that the attributive
feature does not meet the expectations.
Click on the box of the corresponding measured value.
The feature suggestion changes from "Yes" to "No" or vice versa.
You finish the measuring task using the locking button. For details
please refer to Complete Measuring Task .
11.7
Marker selection: forced during the measurement
If during measurement an error occurs in a measured group (control chart
violations), the selection of a marker can be forced. A dialogue is displayed, in
which all markers are listed.
The selection of a marker can only be forced if you are provided with
the suitable user rights.
This forced marker selection is called for all errors which are not marked as
“hidden” in the Error Ranking . The error type, which you also find in the list
"Error Ranking" is also displayed in the dialogue of the marker list.
11.8
Complete Measuring Task
You want to complete a measuring task and finish the measuring task
dialogue using the locking button. You get to the window "Finnish Task" and
have the following options:
Store
Your measured values are stored and are available for further
measurements and statistical evaluations.
Store and Restart
While the measuring task is performed, your data is not stored.
Only this function causes the data to be stored and restart to take
place immediately.
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Interrupt
When you use the function "Interrupt", your measuring task is
only temporarily stored. The interrupted measuring task is
identified in the selection dialogue for measuring tasks. Next time,
when you call up this measuring task, you can continue your work
immediately. An interrupted measuring task cannot be processed
in the Task Editor.
Discard
You finish your measuring task without storing the collected data.
If you reject an interrupted measuring task, your data in the
intermediate store will be deleted.
11.9
Driver not found
You are using a measuring device without having installed the
corresponding driver file. The file still to be installed is displayed to you in the
information window.
This is how you overcome the problem
Confirm the error message with "OK".
Change over to the PartManager.
Open the "Driver Settings" via the menu "Settings/Small Tool
Driver System".
Install the missing driver.
For details refer to Driver -Settings .
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Filter for Data
12 Filter for Data
12.1
Data Selection
Using a filter, data can be selectively analysed or displayed.
A filter is valid for all features of a part.
Each part gets its own filter.
A filter remains valid, even after restarting of program.
First of all, you can select your criterion. The check boxes allow using different
criteria; if you select more than one, only those data are selected where all
criteria are true. The values for the criteria can only be input after the
corresponding check box has been marked.
Optionally, you can select the criteria hereafter. You can freely select the
criteria; you don't have to begin with a time filter:
Primitive Filter
Further Filter Options, with shifts, sublot, marker and analysis type
Maximum No. of Groups
12.2
Time Filter
Date/Time: For the start date, the date of the oldest entry is suggested; the
"to"-date is the actual one. If you want to see always the latest data, do not
activate the "to"-date. As the criterion is stored this fixed date will remain valid
even later. This means, that you do not get the data, which have been
measured after this date!
If you want to specify a date, you must activate the criterion, then click the
button on the right-hand side of the criterion. You get a new window for the
input of date and time.
Examples
On July 30
the previous month means the interval from
June 30
the actual month means the interval from
time of today
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June 1st until
July 1st until actual
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the previous 30 days means the interval
now
from July 1st until
On August 2nd
the previous month means the interval from
31st
the actual month means the interval from
July 1st until July
August 1st until now
the last 30 days means the interval from July 4th until now.
The filter for time intervals is always synchronous with the actual date.
de-activates the date/time filter.
12.3
Further Filter Options
Shifts: This criterion allows filtering by a determined shift time. The shift
times have to be defined before in the menu Settings/Shift Times in the
PartManager. Thus, after having activated the symbol, you can choose from a
list the shift by which filtering must be done.
Sublot: This criterion allows you to filter by sublot. If you use a
structured sublot, the input line is inactive, and the symbol on the right-hand
side is active.
•
If you do not use a structured sublot, only the input line is
active. In this case, directly enter the filter criterion, and you
can use the wildcards "?" and "*".
•
If you use the structured sublot, you can also filter by this
method. Enter the filter criterion in the window, which appears
after your click in the symbol. Here, you can also use the
wildcards.
Marker: This criterion allows you to filter by marker. After having
activated the symbol you can choose, out of a list, the marker by which the
filtering has to be done.
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Analysis Type: Furthermore, you can define the range where the data come
from (Cm or Cp). The two areas can also be selected at the same time.
If the criterion „Analysis Type“ is activated but none of the two data
ranges, „No Data“ are found!
Note: You can define in general calculation settings, the range where
the data come from (Cm or Cp). There, you can find „Machine
Analysis“ for the Cm-area, respectively „Process Analysis“ for Cparea.
12.4
Select Shift
In order to filter exclusively data of a certain shift in the adjusted time filter
(period),...
... pre-select one of the shifts.
Confirm your option.
In the 'Set Filter' window, in the “Additional Filter“ zone, your
selection is indicated.
12.5
Maximum No. of Groups
This is an additional filter for data already filtered by the criteria “Time Filter” or
“Further Filter Options”. When choosing this option, you can limit the no. of
groups.
Two examples:
Defined Filter Criterion:
Maximum no. of groups: the last 25 groups
Result: When analysing, only the last 25 measured groups will be
taken into account.
Defined Filter Criteria:
Filter by sublot, maximum no. of groups: the last 25 groups
Result: In this case, first of all the sublot is filtered and out of this
data set, the last 25 groups are filtered once again. Thus, a
maximum of 25 groups is used for other analysis. If, by preceding
filter criterion (in this case, “filtering by sublot”), there are already
less than the maximum no. of groups (in this case 25), only this
inferior number is taken into consideration for other analysis.
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Output of Statistical Data
13 Output of Statistical Data
With the output of statistical data, you can store your results in the ASCII
format. For this, you first must select the output format.
According to standard, you have at your disposal the format catalogue
"Standard". This format catalogue includes the following file formats:
NPA: for creating a new part
TRF: for entering into a part that already exists
STAT-DB: linking to different data bases
You must know
In the file format selection, you choose the file format you require.
For the format catalogue "User-Defined ", please contact your
Mitutoyo Service Partner.
If you want to attach your results to a file already existing, then
activate the control box "Attach File" by a simple mouse-click.
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