C-BUS VERSION 2.3.0
TRAINING MANUAL
Prepared by
CLIPSAL INTEGRATED SYSTEMS
ACN 089 444 931
For Technical enquiries please ring
1300 722 247
PREFACE
SCOPE
The aim of this document (from now on to be referred to as the Training Manual) is
to provide basic training in the fundamentals of C-Bus systems.
Fundamentals will include the concepts of programming C-Bus units as well as
operation of the C-Bus components.
As components of a basic C-bus system comprises of C-Bus input and output units,
the training manual will cover the types of units and how to program them. Also
covered will be the concept of addressing and how addressing affects the operation
of C-Bus systems.
It will be seen the procedural fundamentals of programming C-bus units has been
kept deliberately consistent and user friendly whether programming input units or
output units.
BOUNDARIES/CONSTRAINTS
As C-Bus is a constantly evolving system offering continually improved solutions to
building management requirements, it is impossible to fully cover the ever increasing
range of C-Bus products. For this reason, even though up to date at the time of
writing, the end user of C-Bus products are strongly advised to keep up to date with
the latest range of CIS’s C-Bus products. Information on latest releases of products
is available through multi mediums including the Internet.
Even though C-Bus application software is relatively easy to run and navigate, this
manual does not cover the operation and use of computers. It is assumed the user
wishing to program C-Bus networks has sufficient computer skills to appropriately
operate and use the software.
C-Bus Training Manual V2.3.0
C-BUS TRAINING MANUAL
TABLE OF CONTENTS
1.
INTRODUCTION ................................................................................................... 1
2.
C-BUS-COMMUNICATIONS............................................................................... 12
3.
SYSTEM SUPPORT MODULES ........................................................................ 17
4.
SOFTWARE INSTALLATION ............................................................................. 26
5.
THE CONCEPT OF ADDRESSING .................................................................... 31
6.
GETTING STARTED........................................................................................... 41
7.
DIMMER AND RELAY UNITS............................................................................. 56
8.
KEY SWITCH INPUT UNITS .............................................................................. 86
9.
LIGHT LEVEL SENSOR ................................................................................... 108
10.
PIR OCCUPANCY SENSORS .......................................................................... 112
11.
PROJECT MANAGER ...................................................................................... 117
12.
NETWORK BRIDGES ....................................................................................... 122
C-Bus Training Manual V2.3.0
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.
PAGE 1
INTRODUCTION
C-Bus or Clipsal Bus is an intelligent wiring system that can realise energy savings
in many residential, commercial and industrial installations.
C-Bus changes the way buildings are wired, using a combination of category 5 (also
simply known as cat 5) cable for communications between units, and mains cable
for switching loads. Loads may be many types of power consuming devices ie.
Lights, fans even GPO’s.
C-Bus allows great flexibility in electrical installations with a number of ensuing
benefits that include:
Energy savings.
Complicated switching patterns easily realised.
Increased life of luminaries if dimmer units are used.
Changes in many functions easily made without need to re-wire.
The ability to interface and communicate with other electrical automation
systems.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.1
PAGE 2
HOW C-BUS WORKS
Units on the C-Bus each have their own built-in microcontroller allowing them to
operate independently with “distributed intelligence”. The units use non-volatile
memory to store their program in the event of power failure (EEPROM).
C-Bus uses category 5 data cable for connecting the units. The cable provides the
means of communication between units, as well as supplying the small amount of
power required by each unit to operate.
C-Bus operates at 36 VDC and is a two wire system. All units (both input and
output) have two C-Bus connections that comprise of a +ve and –ve. The
connections may be of a two screw terminal type that are typically found on input
units, or a RJ45 type connector typically found on output units. Even though the
RJ45 connectors have 8 pins in total, 4 of these pins will always have the C-Bus +ve
and –ve connected to them (connected in parallel). The other pins have reserved
uses for them that will be explained by the trainer.
C-Bus consists of modules commonly called C-Bus units, which can be connected
together to form a network. Up to 100 C-Bus units are permitted on any one
network, and up to 255 networks may be connected together in any one C-Bus
installation.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.2
PAGE 3
C-BUS WIRING SCHEME
C-Bus is an intelligent wiring system and all units are inter-connected together by
the C-Bus cable.
C-Bus consists of two electrical parts, the extra low voltage side consisting of the
Input Units, and the low voltage side consisting of the Output Units. Output units
and input units have a C-Bus data cable that allow the communications between
them.
FIGURE 1.1
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.3
PAGE 4
C-BUS CABLING REQUIREMENTS
C-Bus uses a pink unshielded twisted pair (UTP), category 5 data cable.
Clipsal manufacture a cable for C-Bus use exclusively, cat. no. 5005C305B.
The cable has the pink outer sheath to distinguish it from data services in an installation.
Various rules should be adhered to in the use and installation of C-Bus cable.
Units are connected together in “daisy chain” or “star” connection or a combination of both.
When talking of star and daisy chain connections, it should be noted that the physical nature
of the connection (topology) is in fact being referenced to.
FIGURE 1.2
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 5
FIGURE 1.3
It can be seen that in both star and daisy chain configurations the C-Bus
connections are still +ve to +ve and –ve to –ve. In other words a parallel connection
is maintained but in the case of the star connected example (fig 1.3) the ‘star point’
is located on the top unit. In this case all the cables run out from this unit to other
units located at various locations.
There is a recommended maximum number of cables that may be placed in one CBus terminal. Various rules may be found in the ‘Introduction to C-Bus Training
Manual’. This manual should be read and fully understood before further and more
difficult tasks are undertaken.
“Closed loops” are not recommended and should not be used.
NOTES
PAGE 6
C-BUS VERSION 2.3.0 – TRAINING MANUAL
The following conductor pairs (connected in parallel) are used in the C-Bus
connection:
Orange + Blue
C-Bus +
Orange/White + Blue/White
C-Bus –
CORRECT
Correct wiring with the twist
C-Bus being maintained between
the two positive conductors
- Terminal
and their respective negative
conductors.
+
INCORRECT
+
-
C-Bus
Terminal
Incorrect wiring. This will
cause the C-Bus network to
be more susceptible to
electrical interference (if
wiring is consistent).
FIGURE 1.4
A maximum of 1000 metres of cable in any single C-Bus network. The 1000 metres
of cable includes all connecting cables between output units (patch leads), branch
off connections and the like.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.4
PAGE 7
WIRING THE NETWORK
The mains side of the C-Bus is wired in accordance with AS3000 or any standard
that apply in the region.
C-Bus cable is run and connected with the same (or possibly even more stringent)
rules that govern data cabling.
If these rules are adhered to, a trouble free and easily maintained network will result.
Maintain segregation between C-Bus cable and mains cable for parallel runs, this is
at least 150mm segregation between the cables.
When C-Bus must cross a mains cable, ensure crossover occurs at right angles with
adequate segregation (ie. at least 60mm).
Avoid running C-Bus cable near sources of electro-magnetic interference such as
fluorescent lighting and motors.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.5
PAGE 8
SHORT CIRCUIT CONDITIONS
The following describes the C-Bus system and the components during a short circuit
condition:
C-Bus Power Supplies employ current limiting and are protected from short
circuit conditions indefinitely.
A short circuit on C-Bus does not trip mains circuit breakers.
All C-Bus communications will cease during a short circuit condition.
Programmed information is not lost during a short circuit condition.
C-Bus restores itself following the release of a short circuit condition to its
original state, or as programmed via the installation software.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.6
PAGE 9
OVERVOLTAGES AND TRANSIENTS
The C-Bus modules consist of electronic components that can be damaged from
overvoltages and transient conditions.
C-Bus employs some transient protection, but the level of protection is not enough
to protect against large overvoltages from switching operations or lightning strikes.
It is recommended that:
Overvoltage protection, such as the Clipsal 970LCA and/or 970 are used in
the mains switchboard.
Overvoltage protection is used on the C-Bus data cable if the cable is routed
between buildings or C-Bus is used in an outdoor application.
1.7
MEGGER TESTING
Megger testing (insulation testing) of an electrical installation with C-Bus should only
be performed on the mains component of the installation, or in accordance to wiring
standards. The megger testing of the low voltage mains wiring should be performed
before final connection to output units
There is no requirement to megger test the C-Bus cables.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.8
PAGE 10
POWER FAILURE
Each unit on C-Bus incorporates a microcontroller and non-volatile memory,
operating independently from any central control. All programmed parameters are
stored in non-volatile memory, allowing them to retain their settings in the event of
power failure.
In this way, when power is restored, the entire network will resume operating as it
was before the mains supply power loss.
Units can also be programmed to operate in a predetermined manner after mains
re-instatement.
1.9
OPERATION ON ISOLATED POWER SUPPLIES
Isolated supplies such as local generator sites may have inadequate output
frequency stability to allow C-Bus dimmer units to function correctly.
The dimming ability of the C-Bus Dimmer units can be affected if the mains supply
frequency is out of the specified range.
The use of isolated supplies does not affect the operation of any other C-Bus
devices.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
1.10
PAGE 11
OPERATION ON INVERTER SUPPLIES
All C-Bus units which are mains powered are designed to operate from sinusoidal
voltage waveforms. Any inverter which produces a square-wave voltage output may
cause damage to, or degrade the performance of the C-Bus devices connected to it.
The use of Uninterruptible Power Supplies (UPS) can be used if the output voltage
and frequency are within acceptable limits for the operation of C-Bus units that
require mains power.
NOTES
PAGE 12
C-BUS VERSION 2.3.0 – TRAINING MANUAL
2.
C-BUS-COMMUNICATIONS
The following description demonstrates the actions of a KEY SWITCH INPUT UNIT
to control one channel of a dimmer unit.
2.1
THE KEY IS PRESSED
When you press the key, the KEY SWITCH
INPUT UNIT measures how long the key is
pressed. The length of time the key is
pressed may determine what command the
KEY SWITCH INPUT UNIT will issue.
FIGURE 2.1
2.2
KEY SWITCH INPUT UNIT SENDS A MESSAGE
The Key switch will then issue an appropriate
command, the message is synchronised to
the System Clock to ensure data is not lost in
the transmission.
FIGURE 2.2
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
2.3
PAGE 13
MESSAGE IS BROADCAST ONTO C-BUS
The message is broadcast on the C-Bus for all units to read. Only those units
programmed with the correct addresses will respond.
FIGURE 2.3
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
2.4
PAGE 14
DIMMER CHANNELS RESPOND
Once the Dimmer Units have received and interpreted the message, they switch the
loads affected to their new level.
FIGURE 2.4
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
2.5
PAGE 15
STATUS REPORT
For the purpose of the following, units that initiate the MMI status report will be
called input units. Input units may include KEY SWITCH INPUT UNITs, light level
units or PIR units. Fundamentally, all units that send a C-Bus command due to a
mechanical or physical action placed upon that unit will be called an input unit. Units
that supply details of compliance checks will be called output units. Output units
include dimmer units and relay units. See technical manual for full details regarding
C-Bus units.
In traditional hard-wired electrical installations, bulky cables and their associated
connections were used to control electrical devices. Electrical currents at relatively
large voltages flowed to control electrical devices (i.e. a light switch connected to a
light bulb).
In a C-Bus system, these bulky cables from switches (input units) are replaced by
lighter, cat 5 cable, that allows communication pulses to flow through it with userdefined codes and commands. Consequently, a link between devices exists as a
short burst of communications in the C-bus cable that forms an integral part of a CBus system/network.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 16
In order to ensure that the overall reliability of the system is not less than that of an
older, traditional wiring system, a Status Report communications burst is sent
between all units (input and output) on a regular basis.
The Status Report gathers information from all output units and sends this to all
input units so that if any state disagreement exists, the input units can adjust.
In response to a state disagreement within a Status Report, input units may reassign
their internal state, or may transmit a Command to ensure that all output units are
set to the same state as the input unit.
A Status Report is initiated on a regular basis to ensure the functional link stays
intact. The time is defaulted to 3 seconds but may be changed by the user.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.
PAGE 17
SYSTEM SUPPORT MODULES
C-Bus System Support modules are those units which are required on all networks
for correct operation, and serve a number of functions.
There are three types of System Support Units, a single network does not require a
Network Bridge but that module is required in multiple network installations.
System Support available on C-Bus are:
The C-Bus Power Supply
The PC Interface
The Network Bridge
Each unit with the exception of the Power Supplies requires programming using the
installation software along with a PCI or CNI (also may be known as interface
adapters).
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.1
PAGE 18
C-BUS POWER SUPPLY
The C-Bus Power Supply is described by:
The C-Bus Power Supply is the only unit that does not contain a
microcontroller and does not require programming.
The primary function of the Power Supply is to convert the mains input
(240 Vac) into the 36 VDC required by the C-Bus units for operation.
Each Power Supply supplies the C-Bus 36 VDC @ 320 mA, while each CBus Unit requires 18 mA for correct operation.
Each “on board” Power Supply in DIN series C-Bus units (Relay and
Dimmer) supplies 200mA @ 36V.
Each “on board” Power Supply in PRO Series C-Bus units (Relay and
Dimmer) supplies 60mA @ 36V.
Each DIN series stand alone Power Supply supplies 350mA @ 36V.
The mains potential side of C-Bus has an isolation rating of 3kV to the C-Bus
control side.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 19
Rules that govern the operation of Power Supplies:
Power Supplies may be added to the C-Bus as required (not to exceed a
total of 2 Amps however).
Power Supplies can operate from any mains voltage phase while connected
to the same C-Bus network (mains side of different C-Bus power supplies
connected to different phases).
When more than one Power Supply is connected to the C-Bus network, the
Power Supplies share the load equally.
A stand-alone Din-Rail Power Supply is required for every 17 C-Bus units.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.2
PAGE 20
AC OUTPUT IMPEDANCE
C-Bus messages are voltage pulses which are superimposed upon the DC Power
Supply voltage. This requires a high AC impedance to be present at C-Bus
communication frequencies.
The Power Supply has a special output stage providing this impedance.
General purpose off-the-shelf Power Supplies are therefore not suitable for C-Bus
installations.
Figure 3.1
NOTES
PAGE 21
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.3
OUTPUT VOLTAGE REGULATION
The C-Bus units are designed to operate from the C-Bus Power Supply with a
nominal output voltage of 36 VDC.
As more C-Bus units are added the output voltage starts to decrease. The C-Bus
units are designed to operate to a voltage as low as 15 VDC.
When the voltage becomes less than 15 VDC, more C-Bus Power Supplies must be
added to the Network.
Output
Voltage
36 V DC
32 V DC
17
Number of C-Bus Units
Figure 3.2
NOTES
PAGE 22
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.4
C-BUS PC INTERFACE
The C-Bus PC Interface is designed to provide an isolated communications path
between a personal computer/modem and the C-Bus network. It’s prime function is
to act a ‘language translator’ that converts RS 232 protocol to C-Bus protocol.
Personal
Computer
RS232
PC Interface
C-Bus
C-Bus
Network
FIGURE 3.3
The C-Bus PC Interface facilitates:
Programming of the C-Bus units.
Issuing commands to the C-Bus units.
C-Bus network monitoring/logging.
Can generate a system (synchronisation) clock for synchronised data
transmissions.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 23
Can provide a network burden required by each C-Bus network for correct
operation.
Even though required for programming the PCI may be removed from a CBus system/network after programming is completed. This assumes that
another C-Bus unit (generally an output unit) will take the role of providing a
network burden and system clock.
The installer of C-Bus systems should also be aware that a CIS product
called a CNI (Computer Network Interface) is also available. The purpose of
this device is to allow the programming and general communications link
between a PC and C-Bus network over a physical Ethernet layer. There are
separate issues regarding this device and will not be fully covered in this
manual. See your instructor or look for further details on Clipsal Integrated
Systems Pty Ltd web site. Web Site is: http://www.clipsal.com/cis/.
NOTES
PAGE 24
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.5
SYSTEM CLOCK
The System Clock ensures that data transmissions are controlled. Syncronised.
Data transmission occurs a short period following the falling edge of the last pulse.
When two commands are executed simultaneously, they are put into a queue and
issued onto the C-Bus network in a controlled fashion.
The clock waveform generated by the PC Interface unit consists of a bipolar 2.5V
rectangular pulse of duration 296uS. Rise and fall times for the clock waveform, as
well as for all the other communications on the C-Bus, are controlled to reduce the
generation of unwanted electromagnetic interference.
a) Pulse repetition rate
2.000ms
b) Pulse shape
148us
148us
2.5V
dv
dt
<1.4V/us
-2.5V
Figure 3.4
NOTES
PAGE 25
C-BUS VERSION 2.3.0 – TRAINING MANUAL
3.6
NETWORK BURDEN
The network burden provides a load to the network and at least one network burden
is required on every network for correct operation. The burden is software selectable
on output units.
The network burden is simply a 1000R (ohm) resistor in series with a 10uF/50V
electrolytic capacitor, (observe polarity). This is useful if the user wishes to disable
software selectable burdens and have a ‘hardware’ burden connected onto the bus.
Rules with network burdens:
One and only one network burden is required on each C-Bus network.
C-Bus DIN and Pro Series units have a software selectable network burden.
The software burden can also be enabled by using Learn Mode.
Below is a schematic of how a network burden is constructed.
10uF 50V 1kΩ 0.3W
+ C-Bus
- C-Bus
FIGURE 3.5
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
4.
PAGE 26
SOFTWARE INSTALLATION
The current version of C-Bus Software is free for download on the Clipsal Integrated
Systems website: http://www.clipsal.com/cis/.
4.1
PC SYSTEM REQUIREMENTS
The minimum requirements for a computer to run the C-Bus software is:IBM Compatible Computer
Operating System: Microsoft Windows 95 or higher
Microprocessor: Pentium 100
RAM: 16MB
8MB Hard Disk Space
High resolution colour monitor
Java Enabled
Internet Browser : MS Internet Explorer V4.1 or higher.
Pointing Device (i.e. Mouse)
CD-ROM
Further the installation software requires 8MB hard drive disk space for installation.
NOTES
PAGE 27
C-BUS VERSION 2.3.0 – TRAINING MANUAL
4.2
BROWSER
When the C-Bus installation software is launched, the Browser view is the result.
From the Browser screen the user has access to the following pull down menus.
File
Database
Transfer
Help
4.3
Edit
Network
Window
Exit
FILE MENU
The File menu allows the installer to access the following commands:
Communications Setup
Allows the user to select the Baud Rate and
Communications port.
Project Manager
Allows the user to define a new project or edit
addresses of an existing project.
Decimal Addressing
Selects decimal addressing for Unit Addresses.
Hexadecimal Addressing Selects hexadecimal addressing for Unit
Addresses.
Print
Allows the user to select printer options.
Print Preview
Allows the user to preview the print selection.
Exit
Exits C-Bus program.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
4.4
PAGE 28
EDIT MENU
The Edit menu allows the installer to access the following commands:
4.5
Add New Unit
Allows the user to add a new unit when in
database mode.
Copy Unit
Allows the user to duplicate a unit in the
database.
Delete Unit
Allows the user to delete a unit.
Change Unit Address
Allows the user to change the Unit Address from
the available addresses.
Refresh
Updates database or network listings to reflect
changes made.
Abort Operation
Cancels current operation.
DATABASE MENU
The Database menu lists all the available databases stored on the personal
computer.
The databases are stored in unique directories and may be saved individually on
disk, and uploaded onto other machines. This is achieved by exporting the project
into a .CB2 format file (compressed C-Bus file).
In the same way other databases may be imported to the target machine.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
4.6
PAGE 29
NETWORK MENU
The Database menu allows the installer to access the following commands.
Set Project
Allows the installer to select the Project name from
those available in the project manager list and then
store the project name to a C-bus network.
Partial Details
Lists partial details of the network and databases
Omits the addressing information. Note the speed of
the scan is greatly enhanced when this option is
selected.
Full Details
All details in the network and database scan are listed.
Local Network
Select the Local Network (the one attached to the PC)
to scan. Remote networks are then displayed below if a
multiple network system.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
4.7
PAGE 30
TRANSFER MENU
The Transfer menu allows the installer to access the following commands.
Network > Database
Transfers the contents of the open network to a
database, and saves the database to the hard drive of
the machine.
Database > Network
Down loads the contents of the database to the network
connected to the PC. Units over written with the same
Unit Address. There are cautions to be taken when
using this feature. The instructor will explain.
NOTES
PAGE 31
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.
THE CONCEPT OF ADDRESSING
A conventional electrical installation comprises of many switching type devices and
corresponding load or switched devices (ie. lights). This type of installation requires
many cables for interconnecting the various devices.
Consider the following examples for an objective and cabling requirements to
achieve that objective.
Objective 1:
One single light switch to control a light.
Requirement:
One active supply wire and one switched active wire.
Light
N
Active (240V)
Switched Active
Figure 5.1
NOTES
PAGE 32
C-BUS VERSION 2.3.0 – TRAINING MANUAL
Objective 2:
Two single light switches to control one light load.
Requirement:
One active supply, a pair of strappers and a switched active
wire.
Strappers
Switched
Active 2
Active (240V)
Light
N
Switch 2
Switch 1
Figure 5.2
As can be seen, the number of control cables increase as the number of switches to
control still only one load increase.
Objective 3:
Individually control from one location three (3) lights and one
(1) exhaust fan using a four- (4) gang switch.
Requirement:
One active supply wire and four switched active wires.
The requirements of objective 3 demonstrate the necessity of multiple cables to
achieve a relatively simple electrical operation. Each of these cables must be fixed
in accordance with local authority standards.
Loads required to be dimmed or speed controlled and/or timed must have additional
electrical components added to achieve these aims. Master on/off switching by
conventional means require cumbersome switches/relays able to handle large
switching voltages/currents.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.1
PAGE 33
EQUATING C-BUS INSTALLATIONS WITH CONVENTIONAL WIRING
The concept of Group Addressing in a C-BUS system is no harder than the labelling
placed on individual, but bunched, switch wires to facilitate correct connections to
multiple load devices (i.e. light fixtures). 240 volt switches, dimmers and timers are
replaced by C-BUS units. A single C-BUS cable will replace many switching and
control wires. Simply put, an association (in the form of addresses) is being made
between each switch on the C-Bus Key Switch Input Unit, PE and PIR units and CBUS channels on relay and/or dimmer units.
Instead of a current flowing when a switch is turned on (traditional wiring) and a light
turning on, a stream of data instructions flow down the 2 wire C-Bus cable to
achieve the same function. As C-Bus is a two-wire system, and all units are
connected to those same two wires, any instruction flowing in the wire is available to
all units. Instructions are then interpreted by all the units. Addresses are noted, the
unit then decides if the instruction was directed toward it. Hence the labels or
associations mentioned earlier are required in the form of addresses/group
descriptions.
NOTES
PAGE 34
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.2
ADDRESSING CONVENTIONS
There are five types of C-BUS addressing. These are:
Unit addressing
Group addressing
Area addressing
Application addressing
Network addressing
From smallest to largest (but not in respect to importance) it can be pictorially
represented in the following fashion.
UNIT
GROUP
AREA
APPLICATION
SMALLEST
BUILDING
BLOCK
NETWORK
LARGEST
BUILDING
BLOCK
Again, smallest to largest is by no means referring to importance. Without units
there would be no networks. No networks would indicate there are no units. What is
indicated by this pictorial view simply tries to show that the units, with their own
unique addresses, are the base building block on which all subsequent addresses
are constructed. Networks with their own unique addresses are final constructs
encompassing the whole structure.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 35
Addressing for C-Bus is generally allowed in two formats (with some exceptions that
will be noted where applicable). These are: Numeric
Alphanumeric
Numeric form is probably the most conventional method of addressing. As microbased equipment works on numbers (ultimately in the form of 1’s and 0’s) to achieve
an objective, this form of addressing is the most machine friendly. For simplifying the
binary format of machine code we can represent this code in a hexadecimal format.
Binary = 1111 1111
Hexadecimal = FF
Luckily the ability to assign and link a numeric address in an alphanumeric form is
available. This is human friendly, as a descriptive word to associate a particular
switch on a key unit to a particular channel on an output unit makes things easier.
For example switch one of a four key unit to control one of four lights in the
bathroom can be called bathroom-light1 instead of, say, 0A (Hex).
Ultimately any words used for group descriptions will be ‘stripped’ of by the
application software and the ‘raw’ hex group address only will be loaded into the
relevant C-Bus units. The group descriptions will be stored on the PC in a
database for linking by the application software on upload procedures that may
occur at later dates.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.3
PAGE 36
UNIT ADDRESSING
The unit is the basis on which all networks are constructed. The unit must be
addressed with it’s own unique and individual number. This number may be in
Hexadecimal or Decimal format. The number range is between 0 to 255 (decimal) or
00 to FF (hex). Remember, however, this does not mean that 256 units can be
placed on a network. Constraints limit the number to 100! Unit addressing is allowed
in only one format.
Numeric form (either Decimal or Hexadecimal).
Once the C-BUS unit has been given an address number it has been given an
identity on the network. Why give units individuality? One reason is so the software
can read, or scan, the network units in a numerically ascending order (shortcut key
F2).
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.4
PAGE 37
GROUP ADDRESSING
One channel of a input unit (ie one key of a four KEY SWITCH INPUT UNIT) needs
to know which particular channel of an output unit (ie one relay output of a four relay
(channel) relay unit) to turn on. This is where group addressing is applied. Group
addressing can be divided into two forms.
Numeric form
Alphanumeric descriptive form
Valid group addresses are boardroom lights, kitchen fan etc. 20 alphanumeric
characters, including white spaces are allowed.
255 unique group addresses are allowed.
NOTES
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5.5
PAGE 38
AREA ADDRESSING
Next is area addressing. This is where the group addresses are assigned to the
area address of a particular unit. The function of this is that all the group addresses
on that particular unit will be toggled.
This form of addressing also allows the flexibility of: Numeric form
Alphanumeric descriptive form
In this case an area can be described in a form more in line with how humans would
visualise the area.
Ie. An area may be “Warehouse”, “Factory”, “Master Off” etc.
255 unique area addresses are allowed. 20 alphanumeric characters, including
white spaces are allowed.
NOTES
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5.6
PAGE 39
APPLICATION ADDRESSING
There are two default application addresses given by the C-BUS software.
These are: Heating
Lighting
This form of addressing allows a network to be divided into “different applications”
so any units in one application can be controlled without affecting units within
another application.
More types of alphanumeric descriptive terms are possible other than heating and
lighting, and are allowed in this form (alphanumeric) for reasons as given previously.
255 unique application addresses are allowed. 20 alphanumeric characters,
including white spaces are allowed.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
5.7
PAGE 40
NETWORK ADDRESSING
Networks can again be described in forms as described previously. This form of
addressing also allows the flexibility of: Numeric form
Alphanumeric descriptive form
In this case a network can be described in a form more in line with how humans
would visualise the applications.
Networks may be called “Floor 1”, “Floor 2” etc.
Up to 255 networks are allowed in any one C-Bus installation. 20 alphanumeric
characters, including white spaces are allowed.
Exercises.
1. What are the five types of addressing associated with C-Bus networks?
2. List some constraints associated with exercise 1 (ie name length etc).
3. In what format is the addressing allowed?
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.
PAGE 41
GETTING STARTED
There are several ways in the “development cycle” of a C-Bus network. On a new
installation a recommended method is: 1. Work out the total component count.
2. Ensure the power supply requirements are met.
3. Note network burden requirements (especially if a bridge is used).
4. C-Bus Calculator should be used in steps 2 and 3.
5. Start up C-Bus application software and go to project manager.
6. Create a new project.
7. Ensure Topology Manager is correctly drawn.
8. Use Database Manager to add or delete network components as required.
9. Program the functions required of the units (if known).
10. Using a PC interface and power supply as a pre-load “jig”.
11. Connect the PC to the PC Interface via the serial lead.
12. Set the Project Name to this “jig” (don’t forget setting the project stores the
project name in the first unit on the network i.e. the PC Interface if it unit
addressed at 00.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 42
13. Still in the Database Manager, use Install new unit facility to load details to
each new unit, as and when each new unit is connected to this “jig.”
14. Mark each unit with relevant details (i.e. unit address on a label).
15. Install units on site.
16. Test, Commission and sign off site.
As proficiency increases different methods may be applied with various degrees of
success. As with all installations, documentation and backups should be made and
maintained. As stated previously the C-Bus Calculator should be used to ensure the
soundness of the proposed network.
Note: Reference should be made to information available in the Introduction to CBus Training Manual. The C-Bus installation Book that accompanies the software as
part of the 5000S/2 package and relevant technical data sheets for the various CBus products.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.1
PAGE 43
CONNECTING A NETWORK
Any C-Bus Network must have a minimum of a C-Bus Power Supplies, as well as a
PC Interface (for programming purpose), unless using Learn Mode. The following
could be used as a “bench programming jig”. This represents the basic Network.
Figure 6.1
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.2
PAGE 44
HARDWARE OPERATION
With the PC Interface connected to the Power Supply, the following should be noted
when the covers are removed from the units.
WARNING: MAINS POTENTIAL IS PRESENT ON THE POWER SUPPLY UNIT,
EXCERISE EXTREME CARE.
PC Interface
Two light indicators, one is permanently lit, the other
flashing (if network reading or writing) at approximately
1 second interval. This is the unit/comms indicator. The
C-Bus indicator is permanently lit if power and unit
status is OK.
Power Supply
Two LED indicators, permanently lit under normal
operating conditions. One indicator relates to the short
circuit protection on the unit and is extinguished on
short circuit condition, and lit when the short is removed
and the power supply restored. This is the C-Bus
indicator. Unit LED indicates unit state.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.3
PAGE 45
STARTING A PROJECT
Each C-Bus installation is referred to as a Project, to set up a Project.
With the mouse, left click on File in the browser.
Select (again with the mouse) Project Manager from the drop down box.
In the Project Manager, select file and then New Project.
The window below should appear. Type in the project name field Network1; ensure
Single Network Project radio button is selected.
This project name will be stored on the first unit of a network, unless the project is
synchronised. In this case the project name will be stored in every C-Bus unit.
Figure 6.2
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.4
PAGE 46
DATA-BASE MANAGER
Note, in the following with reference to mouse actions, when “click” or “select” is
stated a left button push is required unless otherwise stated.
The database manager allows the development cycle of a project by the “building
up” of all the required components in a network. Once a project has been created it
is time to add all the components that will be required for that project (Example).
Go to Database and select it with your mouse. A dropdown selection of all projects
will appear. The project Example will be visible. Run your cursor down the list until
Example is highlighted. When this is done another variable will “pop” out to one side
namely ‘Local Network’ [default name]. This indicates there is only one network
concerned with this project (remember the radio button selected ‘Single Network’.
Now move the mouse cursor over to this network name and select.
IMPORTANT NOTE: - The name ‘Local Network’ is indeed a network address
description. This identifier can be user changed in project manager under the
topology heading.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.5
PAGE 47
ADDING UNITS
The following window will appear.
Figure 6.3
The addition of units (according to components required from pre-plan stage) can be
added using the green + symbol. The first component generally added is the PC
interface (PCI). The unit address is generally the first available (000). This indicates
the PCI is always required, and also makes it the master clock-generating source.
When the green + is selected a drop-down list is made available. Select the C-Bus
PC interface.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 48
A list of available addresses is given. If this was the first unit selected address 00
should be visible. Select this address (00). Once done the PCI Graphical User
Interface (GUI) will appear. The red – symbol will delete selected units. Address
numbers may be manipulated (changed) by the unit address icon on the toolbar.
The pop up box below will appear after the PC Interface is selected. Note that the
address 000 is indeed available as no other units with that address have been
selected.
FIGURE 6.4
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.6
PAGE 49
PROGRAMMING THE PC INTERFACE
The PC Interface template has four fields associated with it, the “greyed” out fields
cannot be edited from the Graphical User Interface (GUI) screen.
The Project Name can be edited in the GUI window.
The Part may be edited with a user-defined description for the unit, such as
NEWUNIT. The Part field is limited to 8 characters.
Figure 6.5
The GUI above shows that the project name is “EXAMPLE.” Any program changes
made and saved to the database will be saves to the database named EXAMPLE.
After relevant details are added into the PC Interface GUI, the OK button is pushed
to save. The GUI will then ask whether you wish to save to the database, to the
network or both. Select where you want it saved and push OK again.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.7
PAGE 50
UNIT ADDRESSES
The Unit Address for a C-Bus unit can be changed in the database window (when
working in database). When a Unit Address has being assigned it is no longer
available to any other unit.
The Unit Address may be changed by either:
Using the short-cut key F6
Selecting the Change Address icon from the menu bar
When the Change Unit Address selection is made, a list box with available
addresses appears. The addressing may be in either hexadecimal or decimal
depending on the user selection.
Figure 6.6
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.8
PAGE 51
PROGRAMMING UNITS FROM DATABASE
Up until now it has been shown how to: Create a new project
Go into database using this project name
Add and delete units
Change unit addresses
The next step is to actually program each unit from the database. When in database
the window has several options. In the top left corner of the database window there
is a field that has “show template” with a down arrow. Click your mouse on the down
arrow. A dropdown menu now appears. Two more options are available, these
being:Download to Network
Install new unit
Select Install new unit. The drop down box disappears and Show Template is
replaced by Install New Unit.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 52
Using a suitable programming jig (ie a power supply and PCI) connect a unit that will
be used in the new installation. If a one key unit is one of the said units connect this
to the jig. On the database listing double click on the corresponding one key unit.
The unit address and other details will be downloaded from the database to the unit
connected to the jig. Disconnect the unit from the jig and label the unit with address
number.
Note:- Full programming details can be performed in database and downloaded into
the relevant units using this method. In this case all parameter details would be
programmed in the unit (via database) prior to it going to site. These details would
include group addresses along with unit addresses. To program in this way has
certain requirements. For example to perform a full database to network ‘download’
the database unit addresses and unit type have to match. If a one key unit on a
connected and powered C-Bus network has a unit address of 03, and in the
database the unit address of 03 is associated to a four key then a failure will occur
on the download. This is due to the software reporting that information of a one key
unit cannot be loaded into a four key unit.
The next section (section 7) gives guidance to full unit programming. It should also
be noted that “On Line” programming is also possible. This is where a network has
been connected together and scanned in displaying all units on that network. GUI’s
can be called up and programme changes made on each unit.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.9
PAGE 53
NETWORK MANAGER
Note:
Before “scanning in” or reading a network (or working live on the
network) the project must be set. The reason for this is because the CBus software links the project name that is stored in the first unit of a
C-Bus network (may be all if project name is synchronised) to a
database of the same name on the PC that the PCI is connected to. If
this is not done and the PC doesn’t have a database with the stored
unit name the details shown in various group fields will be numbers
only. There will be no alphanumeric (or character) address
descriptions for the PC to cross reference.
The Network Manager displays a list detailing the physical units attached to the CBus Network, with the exception of the Power Supplies. A network may be initially
“scanned in” using two methods.
In the browser click on Network, the drop down box displays “Local Network”,
click on this. Use the short-cut key F2.
The user may select between Partial Details (no addressing information shown) or
Full Details (complete addressing information shown). This is selected in the
browser under Network. The advantage of the Partial Details selection, selected
under the Network Menu in the Browser, is that it leads to a faster Network scan.
When a network is scanned in via F2 (Local Network) the details shown are very
much like the details whilst working in database. Many of the functions of how the
data is manipulated are also similar to working in database.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
6.10
PAGE 54
COMMUNICATIONS SETUP
The C-Bus Installation Software has been designed to automatically detect the
Communications Port the C-Bus PC Interface is attached to.
If an error message; PC Interface not detected, then the COM Port needs to be
assigned manually.
The Communications program runs in the background and cannot be shut down.
Select available COM Port from pull down selection, or select Refresh.
FIGURE 6.7
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 55
Exercises
1. Create different projects of your name choice, using Project manager.
2. Delete these projects
3. Try to work out other functions within Project manager (ie import etc).
4. In the database window add several new units. Change unit addresses.
5. Practice adding and deleting different units.
6. Programme units using a suitable programming “jig” with unit addresses.
7. Change unit addresses
8. Detect the project name in a network by scanning it in.
9. Make sure there is no project with the name on your PC from Ex. 8 (if there
is delete it) and rescan the network and see what values are in various group
fields
Advanced Exercises
1. Change the default “Local” network name to “first network” (hint: once project
name is created, you must go into Topology Manager).
2. Find other features of topology manager.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.
PAGE 56
DIMMER AND RELAY UNITS
The following section can be applied to both working in Database or Live on
network. The principle is the same. Remember as stated previously a fully built
database looks very much the same as a scanned in network. Individual units in the
database widow or scanned in network window can be called up by double clicking
on the unit to be examined or modified. The following method of programming units
is valid in both cases.
Either number (preferably reflecting the HEX group address) or alphanumeric
(character) group descriptions can be used. If character descriptive types are used,
the database of the project must be kept on the PC. To ensure that the group
descriptions will always be available for the user, backup disks should be kept.
This is a standard safety precaution as the possibility of disk crashes and PC
hardware failure should always be of a prime concern. The availability of the same
PC having programmed the network originally may not always be available. In this
case the backup disk can be loaded onto the new PC. When the network is
scanned, the software will link the project name stored in the C-Bus unit to the
database (of the same project name) stored on the PC. This is true for programming
all C-Bus units. Further details are available in section 13.
The C-Bus software templates or Graphical User Interfaces (GUIs) are similar for
both Relay and Dimmer modules, with slight differences. Once you master
programming one type of unit either in database or ‘live on network’, then the other
will follow.
The specifications for each unit, in terms of rating and capabilities need to be
addressed when viewing the specification sheets for each device.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 57
For the purpose of the following it does not matter if the GUI’s are displayed by
selecting the particular unit in database or whilst working live on network. It should
be noted however, after programming the various fields of the GUI the programmer
must save the parameters to either Database or Network or both. This is achieved
by after parameter entries/modifications the OK button is selected under the actions
column (right hand side of the GUI). Once selected two more options are allowed.
The action column changes to save column.
These are: Database
Network
If database is crossed (selected) changes or programmed parameters are only
saved to database. If network is crossed changes or programmed parameters are
only saved to network (database is not updated). If both database and network
crossed (selected) then programmed parameters are saved to network and
database is updated. Of course if working only in database and there is no network
connected via the PCI then selecting save to network will end with an error message
being displayed saying that no PCI detected.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.1
PAGE 58
DIMMERS
The C-Bus Dimmer is designed for the control of incandescent and low voltage
lighting, ceiling sweep and exhaust fans.
The Dimmers employ Leading Edge Phase Control technology and are not suitable
for electronic transformers, unless specifically stated by the electronic transformer
manufacturer that the unit is compatible with Leading Edge Dimmers.
Different loads may be controlled simultaneously from the same dimmer on different
output terminals. This means that transformers and incandescent loads can be
connected together on one output channel.
Output terminals cannot be paralleled to increase the output to a particular load,
observe maximum ratings for Dimmers.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.2
PAGE 59
ADDING A DIMMER TO THE NETWORK
The following will assume to be working live on network. Ensure that the PC is
connected correctly. Scan in the network as previously described i.e. short-cut key
F2 or in the browser under network – local network. Also make sure there is an
eight-channel DIN dimmer connected on the C-Bus network. If communications are
not possible go back to communications set-up in section 6 to rectify the problem.
FIGURE 7.0
Note in figure 7.0 the ‘new unit’ is at the end of the ‘scanned in’ list as it has the
highest unit address (255 or FF Hex).
As the address 255 has special meaning to the C-Bus application software it should
be reserved for the purposes of the application software.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 60
It is suggested to change the unit address at this point. Follow these steps to do so.
Place the mouse pointer over the relevant row with the eight channel dimmer that
the address is to be changed, right click once.
FIGURE 7.1
This row now becomes highlighted (figure 7.1). On the tools bar click on the change address
speed button (figure 7.2).
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 61
FIGURE 7.2
Figure 7.3 now shows the window available to the user once the unit address
change button is pressed. The software gives the user the next available unit
address. It should be noted that used unit addresses are removed from the selection
list as used by other units. Select a suitable address and press ‘OK’.
FIGURE 7.3
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 62
FIGURE 7.4
Figure 7.4 shows the network with the changed unit address. At this stage the unit is
still at the end of the scanned network list. Either a network refresh (F5) or scan (F2)
will placed this unit nearer the start of the list as the units are scanned (or read in) by
ascending numeric order.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 63
Place the mouse pointer in the relevant row (containing the unit with address 01)
and double left click. The figure below (7.5) should result.
FIGURE 7.5
Figure 7.5 shows a new 8 channel DIN dimmer that has been connected to a C-Bus
network with its unit address changed to 01. Note the default parameters. The
project name has been added automatically (added by the software). All other
parameters are default.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 64
All channels have the group descriptions of ‘unused’ attached to them, as does the
area description. The unit defaults to ‘lighting’ application, this can be changed at a
later date if so required. Part name is default to NEWUNIT. Part name may be
changed to a name (8 characters) that possibly reflects to where the unit is placed
physically within the installation (site).
FIGURE 7.6
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 65
Figure 7.6 indicates the first step in programming an output dimmer unit. Channel 1
is selected as control of the physical output of channel 1 is required (i.e. a light is
connected to the terminal of the output unit).
The mouse pointer is placed over the group field of channel 1 and then the mouse is
RIGHT clicked. The window appears offering the option of creating a new group
description. The option of changing description is not offered at this stage as no
group description has previously been entered. The create new group is selected.
FIGURE 7.7
Figure 7.7 shows the window that appears next. Note that the description window
has a ‘number’ in hexadecimal. This is where the decision would be made regarding
the addressing ‘format’ to be used in the project.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 66
The ‘number’ shown is actually a description that at onset reflects the true group
address that will be loaded into the C-Bus unit. It would be preferable that this
‘number’ description be left unchanged as the software is actually showing the user
the next available address. In the case of fig 7.2 the value 10 may be changed to
say 4A, but the true group address of 10 will still be attached to the new description
of 4A. The training tutor should be able to practically demonstrate this using project
manager. Also refer to section 13.1 to see a visual representation of this description.
FIGURE 7.8
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 67
Figure 7.8 shows how the previous group description 10 (which in this case also
originally represented the true group address of 10) has been overwritten with group
description of ‘test light 1’. The group address 10 is still in the background and can
be viewed in project manager. Click on OK and the group description ‘test light 1’has
now been placed in the group field box for channel 1. See Fig 7.9.
FIGURE 7.9
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 68
Any group address/description must be kept consistent throughout the entire
network.
Figure 7.10 shows the option of now saving the changes to either database or
network. This is achieved by clicking on the ‘OK’ button in the GUI. Click on the Data
Base check box to save all modifications to Data Base. Click on the Network check
box to save modifications to the C-Bus network. Click on both to save modifications
to BOTH network and Data Base. Click on ‘OK’ again for process to complete.
FIGURE 7.10
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.3
PAGE 69
LOGIC FUNCTIONS
Up to this point we have been working on the first screen of the dimmer GUI. It
should be noted that there are a total of 7 tabs on the bottom of the GUI window.
Click on the ‘Logic’ tab and the screen as shown by fig 7.11 should now be visible.
FIGURE 7.11
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 70
It should be seen that there are a total of 4 separate groups reserved for use if more
complex logical switching is required, and these are available on the second tab.
The assignments of groups for these four are done in the same manner by selecting
from the drop down list, or creating new group descriptions as done on the first
screen.
The logic function is revealed below and is selectable when a check box is selected.
The correct use of this function requires an understanding of logic. Combinational
logic applied to one channel is not possible. If, for example, AND logic is chosen for
channel 4 control then all logic groups added in the other three rows will be of the
same logic function.
Always place the first set of group addresses/descriptions in the ‘channel setup’ tab
screen. Use the ‘logic’ tab screen for further additions of groups, for the purpose of
logic operation.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.4
PAGE 71
TURN ON FUNCTIONS
FIGURE 7.12
Figure 7.12 is showing the screen that allows minimum and maximum levels that the output
channel can be set to. Each slider starting from the left represents a physical channel starting
from 1. For this operation left click on the Set Minimum Levels radio button.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 72
The mouse pointer is placed on the bottom, second from the left slider thumb bar, left mouse
button pressed and held, then the bar pulled up to 20%. Finally left click on the Set
Maximum Levels radio button.
The mouse pointer is placed on the top, second from the left slider thumb bar, left mouse
button pressed and held, then the bar pulled down to 80%. This now has set channel 2
output to operate from between 20% and 80%.
The channel will never dim above or below these levels. This is not to say that they can
never be turned on or off. If a key is configured to a toggle dimmer (see section 10) the
channel can be dimmed up or down and toggled to 0% (off) or 100% (on).
The Synchronise Sliders check box is simply used for the purpose, if checked, to allow one
slider to be grabbed and all sliders will follow to the same level.
A purpose for this function may be to ensure that a minimum voltage is always applied to a
ceiling sweep fan (to prevent motor burn out).
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.5
PAGE 73
RECOVERY FUNCTIONS
FIGURE 7.13
This tab allows setting the state for each of the available groups to return to when
power is restored after a failure. The group state or level for each of the available
channels is shown at the top and the levels for the 4 logic groups at the bottom. A
State box is provided below the slider for each group.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 74
Moving the mouse pointer over this box for each group reveals a hint which says
''Click for no change'. Each time you click in this state box, it will change from "N/C"
,meaning 'No Change' (Auto Level Store at time of power loss), "SET" meaning
set the level you want (between 1% and 99%) , "OFF", meaning 0%, "ON"
meaning 100%, and back to "N/C" again.
When the state box shows "N/C", that group level is automatically saved when
power is lost. This is the level store mode and the level for this group cannot be
changed by the user. The level can only be set by using the slider or clicking in the
value box and selecting from the list when the state box shows "SET".
'N/C' (No Change - Auto Level Storing) The group will return to whatever
level it was at before the power failure. In this sate, the unit automatically
saves the level of the group at the moment power is lost, and will return to
the same level when power is restored. In this state, this level cannot be
changed by the user.
'SET' (Level can be set by the user) The group will return to the level set by
the user. In this state, access is allowed to the slider and value box enabling
the level to be set as desired.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 75
'OFF' (Level is set to 0%) The group is set to Off (0%) and will return to this
level when power is restored. In this state, access is not allowed to the slider
and value box and hence the level cannot be changed.
'ON' (Level is set to 100%) The group is set to On (100%) and will return to
this level when power is restored. In this state, access is not allowed to the
slider and value box and hence the level cannot be changed.
Move the mouse pointer over the text 'Groups recover as follows.....' at the top, to
find out how to change these levels using the keyboard. Move the mouse pointer
over the text in blue 'Groups 13 to 16 are used for logic' at the bottom, to find out
how to change these levels using the keyboard.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.6
PAGE 76
DELAY FUNCTIONS
There are 2 sets of delays provided for in this tab. The first is the Power Up Delay
for each channel which is selectable, from 5 seconds to 33 minutes 30 seconds from
the list that appears when you click in the box. This delay is only applicable after a
loss of power and should not be confused with the Turn On Delay or the Restart
Delay. If a value over 60 seconds is selected, the hint panel will show this in
minutes and seconds when the mouse is moved over the box.( 70 seconds will
show as 1 minutes 10 seconds).
NOTE: - These delays are only available for units with Non-latching relays, and are
not accessible when Latching relays are used.
The next set of check boxes headed by the text 'Power is reapplied to.....' is for
selection of channels to apply the Restart Delay shown below them to. If you
require a channel to have a delay between the time it is turned On and the time
power is applied to the terminal, then select that check box for that channel and then
select the length of the delay required (from 0 seconds to 42 minutes 30 seconds).
There is only one delay period selectable and this is applied to all selected
channels.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 77
Moving the mouse pointer over the heading text for each section shows the ranges
available. The power up delays can be set from the keyboard by using the Alt key
along with the F1 to F? Function keys with the number relevant to the channel
number. The single restart delay below can be changed by using the Ctrl key along
with the F1 key, and the check boxes can be tabbed to, with the space bar doing the
selection/de-selection
FIGURE 7.14
NOTES
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7.7
PAGE 78
GLOBAL FUNCTIONS
FIGURE 7.15
The Global tab has a collection of sundry parameters in the form of check boxes
allowing the enabling or disabling, individually, of each parameter.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 79
These parameters are as follows: Check sum
This option enables or disables the check sum alert and
is enabled by default.
Local Toggle
This option enables or disables the override buttons on
the unit and is enabled by default.
C-Bus Clock
This option enables or disables the clock within the unit
and is enabled by default.
C-Bus Priority
This option enables or disables the priority of C-Bus
commands over the local toggle functions and is
enabled by default.
Burden
This option enables or disables the application of a
burden by the unit and is enabled by default, but is only
available and applicable to a unit with the address of
'01'.
NOTES
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7.8
PAGE 80
STATUS FUNCTIONS
FIGURE 7.16
Figure 7.16 gives valuable feedback to the user. Global Status is self-explanatory.
Voltage of C-Bus and the unit’s Serial Number can also be displayed.
NOTES
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7.9
PAGE 81
RELAYS
DIN relays are programmed in a similar fashion to the DIN dimmers. There are
some differences that will be outlined below.
The obvious difference is that the relay unit has up to 12 channels as opposed to the
dimmer unit that has up to 8 channels. Current carrying capabilities of the relay are
generally higher than that of the dimmer (neglecting the PRO series range of
dimmers however).
FIGURE 7.17
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 82
Figure 7.17 shows that the GUI for the relay is indeed very similar to the dimmer. It
is seen there is provision for programming 12 channels. Selecting or creating group
addresses or descriptions to place in the group fields is exactly the same as the
dimmer.
FIGURE 7.18
Figure 7.18 shows that the only difference between the relay and the dimmer is that the relay
can only set the Set On Threshold (similar to ‘minimum turn on’ on the dimmer).
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 83
FIGURE 7.19
Power up delays are used for the restriction of large current inrushes. If the case of
fig 7.19 every second channel may have the check box ticked. If and area command
is issued to this particular relay unit every second channel would turn on a set time
after the primary set of channels. To stagger start channels, the turn on tab would
be selected and the turn on levels would be staggered.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 84
Exercise
1. Change part name (hint: remember about greyed areas in the GUI’s).
2. Change Unit Address (hint: you must go back to browser and then network
or database look for ways there!).
3. Create some group descriptions to put in the relay and dimmer unit fields.
4. Go to the network project manager and check.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
7.10
PAGE 85
MOUSE OPERATIONS
The group fields in the Dimmer GUI may be changed using the PC mouse.
Left Click
Displays all the existing defined Addresses
Right Click
Allows the user to define new Addresses or modify
existing addresses.
Exercise
Define 4 new Group Addresses on the Dimmer, these should relate to terminals 1
through 4 on the Dimmer. Name these Group Addresses Light 1, Light 2, Light 3
and Light 4. The relation is achieved by the ticks visible under the channel numbers
shown below.
Once this is done suggest what the benefits of the ability to alter the tick positions
are.
FIGURE 7.20
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
8.
PAGE 86
KEY SWITCH INPUT UNITS
C-Bus Key Switch Input Units are available in a wide range of configurations and
patterns. There are three basic templates in the C-Bus software for programming of
the C-bus, these being the 1, 2 and 4 gang patterns. Again if one is mastered then
others will follow.
The C-Bus Key switches are available in the following patterns:
2000 series ( 1, 2 and 4 gang)
C2000 series ( 1, 2 and 4 gang)
A style metal plate ( 1, 2 and 4 gang)
B style metal plate (Up to 132 hang plate)
C style metal plate ( 1, 2 and 4 gang)
NOTES
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8.1
PAGE 87
4 GANG KEY SWITCH INPUT UNITS
Again as stated with the dimmer, relay and analogue units, programming new or
altering existing parameters can be achieved in both database and working live on
network. Observe the same conditions as with the previous units but now ensure a
four key unit is available and connected on the network.
Scan in the network (F2). A screen similar to the one below (fig 8.0) should appear.
Locate the row that contains the 4 gang key unit and double left click on this row.
FIGURE 8.0
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 88
The programming GUI (fig 8.1) will appear.
The C-Bus Key Switch Input Units can be programmed to achieve a number of
functions including; toggle, timers, dimmers, preset dimmers and any custom key.
FIGURE 8.1
NOTES
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8.2
PAGE 89
KEY FUNCTIONS
By looking at fig 8.1, it can be seen that the programming window represents a
graphical representation of a 4 key switch unit.
As per standard C-Bus programming GUI layout, global parameters and information
are visible on the top section of the programming GUI. These being:
Project
Part Name (if applicable)
Unit Address
Network
Application
Area Address (if applicable)
Again as per standard C-Bus programming GUI layout, options tabs are located on
the bottom of the GUI.
By default the programming window that appears after double clicking on a unit in
the network scan screen will always show the window that will appear by clicking on
the left most tab.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 90
Different key function choices are selected by left clicking on one of the four
switches that are visible in the graphical representation of the four key switch unit.
The widow shown (fig 8.2) below will appear.
ON
OFF
ON/OFF
DIMMER
ON/UP
OFF/Down
TIMER
UNUSED
PRESET
CUSTOM
Turns load on
Turns load off
Toggle switch
Up/Down dimmer
Up dimmer
Down dimmer
Timer function (max delay 18hrs, 12mins,
15secs)
No function
Preset dimmer level
User custom configuration
Figure 8.2
The fields in the Key switch GUI may be changed using the PC mouse.
Left Click
Displays all the available Key functions
Right Click
Allows the user to define new Addresses or modify existing
Addresses.
NOTES
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8.3
PAGE 91
POWER FAIL
The Power Fail option is used to set the level of the Outputs following the loss and
subsequent restoration of C-Bus power supply. The Power Fail option is used in
conjunction with the Level Recall command set in the Output Units, if the Level
Recall is disabled, then the state set on the Input Units will not be issued to the
Network.
Figure 8.3
NOTES
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PAGE 92
Restore to Previous Levels
The Outputs are set to the previous level
following power up, and following a
period of approximately 15 seconds (5
MMI* periods) AND and ONLY IF, Level
Recall is set on the Output Units.
Restore to Preset Levels
The user can set the Power Up Level to
any value between 0 and 100% (for
dimmers and analogue output units) or
0% or 100% for relay units.
The Outputs are set to the preset level
following power up, and following a
period of approximately 15 seconds (5
MMI* periods) AND and ONLY IF, Level
Recall is set on the Output Units.
It is recommended that the default case of Restate to Previous State is selected.
**
If the C-Bus does not correct the states in 5 MMI periods then a number of
retries will occur until the correction is made, this may be significantly longer than 5
MMI periods.
NOTES
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8.4
PAGE 93
GLOBAL
The Global Parameters for Input units are revealed under the Global Parameters
TAB. The GUI for the Key switches is illustrated below.
FIGURE 8.4
NOTES
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8.5
PAGE 94
LED INDICATOR OPTIONS
Figure 8.5
First Radio Button
Sets the brightness of the LED on the KEY
SWITCH INPUT UNIT, select from 2 - 100%
brightness.
Second Radio Button
Brightness of the key unit switch’s LED’s follows
the Group Addresses level.
Where to use this facility: Dim the LED indicators in bedrooms etc.
Gives the user an idea of the level of the output channel, if the key switch is
remotely located from the light that is controlled by the output channel
But, in practice, this facility is seldom used.
NOTES
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8.6
PAGE 95
SUNDRY PARAMETERS
FIGURE 8.6
DeBounce
The time required for the switch to settle
mechanically.
LongPress
The time delay before a short press becomes a long
press, used for the dimmer function, to differentiate
Toggle from Dimmer functions.
Ramp 1
Ramp time, applies to functions UPKEY, DNKEY &
DNCYCLE
Ramp 2
Ramp time, applies to functions RAMPOFF &
RAMPRCL1
Check Sum
Default enabled, used for internal testing of the CBus network. An error checking function. Error
indicated by LED flashing on key units.
SR Interval
Period between successive MMI requests.
NOTES
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8.7
PAGE 96
ADVANCED
FIGURE 8.7
The information available on this screen is a text-based solution to the Graphics
available on the Choices menu.
It allows the user to manipulate the data for a more advanced custom control of a CBus.
NOTES
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8.8
PAGE 97
KEY FUNCTIONS
The duration of Press and Release determines how the Key behaves. The
parameters which determine the duration are set in the Global TAB, ie. Long Press
time.
Figure 8.8
The press times shown below show the factory default times. Fig 8.6 shows the
required window that is displayed when the Global tab is selected in order to change
various times.
Short Press
< 400mSec + DEBOUNCE TIME
Short Release
<400mSec following release of Key
Long Press
>400mSec + DEBOUNCE TIME
Long Release
>400mSec following release of Key
NOTES
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PAGE 98
Alternatively, think of the Long Press and Long Release as incorporating Short
Press and Short Release respectively. (DEBOUNCE TIME = 48mSec).
Long Press
Max (448mSec, SHORT PRESS + 48mSec)
Long Release
> Max (448mSec, SHORT RELEASE + 48mSec)
It’s easy to get confused by the mention of adding de-bounce times to press times,
but it is considered to be technically correct to mention it. De-bounce is a critical
aspect to all micro-controller based systems, to ensure reliable operation of the CBus system it has been added as a user changeable parameter in C-bus key units,
auxiliary input units, bus couplers and PIR units.
The user should not have to worry about changing this parameter in the C-Bus1, 2
and 4 key units as the switches are standard and quality assured in each key unit.
However with auxiliary input units and bus couplers where users may wish to add
other manufacturers switches the mechanical characteristics may vary widely.
Mechanical switch contacts when activated (i.e. the switch operated) generally will
bounce (open and close) several times before settling. Micro-controllers can detect
these multiple open and close actions of a switch. The micro-controller (if de-bounce
is not available) may issue multiple on/off commands in relation to the multiple open
and closes of the switch. Therefore de-bounce is a feature that allows a microcontroller to detect a switch closure, go off to do other functions, come back after
de-bounce time (the switch should have settled to it’s new true state by this time)
and check to see if the switch is still closed. If it is a valid switch closure, the microcontroller will then issue a relevant command out to the bus.
NOTES
PAGE 99
C-BUS VERSION 2.3.0 – TRAINING MANUAL
Vo
De-Bounce
Long Press
Short Press
Short
Release
48mS
400mS
Long
Release
Time
FIGURE 8.9
In an attempt to simplify the concept of short press, long press and de-bounce times
consider the drawings above. The first shows a simple push button that switches a
voltage to turn on a light. The voltage at the light is called Vo. The second drawing
shows a graph of Vo (voltage at light) versus time (how long the switch may be
pressed).
NOTES
PAGE 100
C-BUS VERSION 2.3.0 – TRAINING MANUAL
If the switch is not pressed Vo=0. As soon as the switch is pressed, Vo will rise to
some voltage greater than 0. The C-Bus switch will detect this closure. The first
thing it will do nothing about the closure for 48mS (default time). After 48mS, if the
switch is still closed, the C-Bus unit will acknowledge that a short press has
occurred. If the switch is released before 400mS the C-Bus unit will acknowledge a
short release has occurred. If the switch is kept pressed (not released before
400mS) the C-Bus unit will acknowledge a long press has occurred but not a short
release (after all the switch has not been released). Any time after this when the
switch is released the C-Bus unit will acknowledge a long release.
As can be seen, four distinct actions are being monitored by the C-Bus unit, all on
one switch press only. By Right Clicking with the mouse on the Key Fields, a drop
down table of available functions is displayed. These are the functions the Key can
execute.
ONKEY
OFFKEY
TOGGLE
IDLE
UPKEY
DNKEY
DNCYCLE
ENDRAMP
RAMPOFF
RAMPRCL1
RECALL1
RECALL2
RETRIG
MEMTOG2
START
STORE1
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 101
The definitions of the various functions are detailed in the Installation Software
manuals.
It is possible to use the blocks to form customised Key functions not available from
to Options menu on the first GUI screen.
Exercises
Program the 1 Key switch to realise the following functions: 1. ON/OFF switch
2. Light stays ON as long as the Key is held down.
3. Light turns OFF when the Key is held down.
4. Light pulses ON, when the Key is held down.
5. Refer to Installation manual for Key command options.
NOTES
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8.9
PAGE 102
BLOCK ASSIGNMENTS
FIGURE 8.10
The Block Assignments allows the user to set the following parameters from the
advanced screen:
Key Assignments
The user has the facility to assign up to 4 Group
Addresses to each key press.
Timer Duration
A maximum time of 18 hours, 12 minutes and 15
seconds is permitted.
Expiry Command
The expiry command is executed on the expiry of
the timer if selected.
Preset Store
Levels
Preset levels relating to various key functions,
store 1 and store 2 are preset levels stored on the
memory of the key unit.
Status Indicators
Allows the user to program the state of the
indicator, Always On, Always Off, Timer Mode or
On/Off mode.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 103
Exercises
1.
Configure the One Key switch, as a timer controlling Group Addresses, Light 1
and Light 2 to achieve the following:
Light 1, time delay 5 secs, expiry command Offkey
Light 2, time delay 10 secs, expiry command Idle
2.
Configure the One Key switch, as a timer controlling Group Addresses, Light 1
and Light 2 to achieve the following;
Light 1, time delay 5 secs, expiry command Rampoff
Light 2, time delay 10 secs, expiry command Recall1
3.
Configure indicator LED’s for different status indication
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
8.10
PAGE 104
SCENE CONTROLLERS
A Scene Controller allows several groups to be switched on or off, or ramped to
certain levels over a specified period.
There are five C-Bus units which can trigger scenes:5034NS Scene Controller.
5035NIRSL Scene Master.
Any NEO or Reflection Key Unit.
SC500CT Touch Screen (Scenes programmed via C-Touch Software).
Although there are four different scene devices that are programmed differently to
achieve the same outcome, the principle for programming scenes is the same.
The 4 Key Scene Controller has a limitation of 18 Bytes per scene. There are 2
fundamental options that can be selected for a scene and they are ON/OFF and
RAMP.
ON/OFF
=
2 bytes
RAMP
=
3 Bytes
By calculating how many group addresses are being switched or ramped, a
programmer can determine how many loads can be used in a scene.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 105
A Scene Master Controller has a limitation of 9 group addresses, which may be
included in a scene. The difference between the Scene Controller and the Scene
Master is that the all 9 group addresses may be ramped. This exceeds the 18 Bytes
limit of the 4 Key Scene Controller as the Scene Master has a maximum of 27
Bytes.
A NEO or Reflection Unit can have the scene programmed from the GUI. There is a
limitation of 8 scenes per unit, as well as another limitation of 40 used group
addresses for the entire unit. Also there is a maximum of 10 Group Addresses per
scene.
A Touch Screen has a maximum of 100 scenes, with a possible 100 group
addresses being ramped.
NOTE: - The concept of programming a scene is the same for all Scene capable
units. The GUI’s however vary with each individual product.
Exercise
1. List how many bytes are in each scene in a 4 Key Scene Controller and state
whether the scene is possible to implement.
3 On commands and 2 Ramp to 67% over 12 seconds.
1 On, 3 Off 4 Ramp to 80% over 4 seconds.
3 Ramp to 100% over 12 seconds and 3 Ramp to 0%
instantaneously.
2 On, 2 Off and 2 Ramp to 87% over 12 seconds.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
8.11
PAGE 106
C-BUS AUXILIRY UNITS AND BUS COUPLERS
C-Bus Couplers and Auxiliary Input units have the same function. They both provide
the user with four independent input channels to facilitate remote access to the CBus via voltage free switches. Alternatively, the output state of Reed and Micro
Switches can also be read.
Each of the four individual inputs are individually programmed the same way as a
KEY Input Unit.
Figure 8.11
Note: - The GUI for programming a Bus Coupler of and Auxiliary Unit is almost
identical to a Key Unit.
NOTES
PAGE 107
C-BUS VERSION 2.3.0 – TRAINING MANUAL
8.12 MULTIWAY SWITCHING
Multi-way switching can be achieved by adding additional key switches to the basic
network. Add the 2 KEY SWITCH INPUT UNIT and conduct the following exercises.
Exercises
Set-up 2 way switching by assigning the same Group Address to the 4 and 2 KEY
SWITCH INPUT UNITs, ie. use Light 1.
Set-up multi-way switching multi-way functions by assigning different functions to
the Key switches, various combinations to test are:
4 Key switch – Function
2 Key switch - Function
Toggle
Toggle
Toggle
Timer
Toggle
Dimmer
Dimmer
Dimmer
Timer
Timer
On
Off
Up Dimmer
Down Dimmer
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
9.
PAGE 108
LIGHT LEVEL SENSOR
The Light Level Sensor is a device used to measure ambient light and send a
command or control signal to the C-Bus. The Light Level Sensor is designed to
operate in the range of 40 to 1,600 Lux.
The sensor is capable of controlling the brightness of an output from 0 - 100%, or
bank switching at a threshold. The sensor can be enabled or disabled from a Group
Address. The user can set the Target Light Level and Margin from the template
GUI.
FIGURE 9.1
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
9.1
PAGE 109
LIGHTING CONTROL SYSTEM
The Light Level Sensor can control lighting by Level control or On/Off control.
Level
A Group Address in this field operating in
conjunction with a Dimmer or Analogue Output
module is used to regulate light output continuously,
as a function of ambient light to constant lighting,
within the set margins.
On/Off
A Group Address in this field operating in
conjunction with a Relay Output module is used to
switch light circuits at the Target Level subject to the
Margin.
Enable
A Group Address in this field enables the operation
of the Sensor to regulate, the Enable does not turn
Off the load unless also programmed in the Output
Unit being controlled. The Sensor is enabled when
the Group Address in On.
Target Level
The Target Level set in the Sensor, with units of
Lux. The range set is approximately 40 - 1600 Lux.
Margin
The total variation, (dead-band) about the Target
Level, to prevent hunting or oscillating of the lighting
control system. If level control is used set margin to
zero. If On/Off control used set margin to prevent
above stated oscillation.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
9.2
PAGE 110
FIELD CALIBRATION
There are two methods towards calibrating the Light level Sensor, each is explained
below.
Method 1
Set the Target Light Level to the value required, ie. 400 +/50 Lux (Set Target = 400 and Margin = 100).
Allow the lighting level to settle in the room, and measure
the light level at the surface using a light meter. (This will
be different to that measured on the Sensor due to the
relative proximity of the units).
Adjust the Target higher or lower until the required value is
attained.
To set the Target, Right Click on the Set Target button.
Method 2
Set the Target Light Level to the maximum value of 1600
Lux, set the Margin to the value required.
Turn the lights Off then On, and allow the lights to gradually
ramp up to the final value. Using a light meter, measure the
level at table surface, when the required value is reached,
Right Click SHIFT and Right Click on the mouse on the Set
Target box.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
9.3
PAGE 111
SENSOR POSITIONING
The Light Level Sensor can be used to give an indication of the Light Level on the
surface of the detector, by clicking on the Lux box on the template.
The Light Level Sensor has a field of view of 180 degrees and must be positioned
correctly for the device to operate.
Some simple rules regarding positioning include:
Position the sensor away from natural light and other direct light sources.
Position the sensor on the ceiling looking down towards the working surface
or on a side wall looking into the working environment.
Do not obscure or hide the sensor with furniture etc…
If indirect lighting sources are used, (some types of hi-bays) ensure that
indirect light does not directly radiated the surface.
Try to position the sensor at the same horizontal level as the light source.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
10.
PAGE 112
PIR OCCUPANCY SENSORS
There are two types of PIR Occupancy Sensors are available for C-Bus, an indoor
model and outdoor model. Each are characterised by:
Passive Infra-red movement detectors
Threshold adjustment on the unit.
Time delay software adjustment from 0 - 18 hours.
Incorporate a sunset switch facility.
Incorporate a security pulse facility.
Mechanical and optically equivalent to the standard mains operated PIR
detectors.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
10.1
PAGE 113
MOVEMENT DETECTION
The user sets the light threshold on the unit via a potentiometer, which determines
at which light level the detector will turn on. The time delay is set in the installation
software.
The Group description, Time and Expiry Command are entered on the first TAB.
FIGURE 10.0
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
10.2
PAGE 114
SUNSET AND SECURITY FEATURES
The PIR sensors feature a Sunset Switch feature, the sensor can be programmed to
turn lights on at sunset for a period up to 18 hours, or turn off at sunrise.
The unit also has a security feature that sends a short pulse intended to drive a
buzzer or light to indicate movement at any time independent of the light threshold.
FIGURE 10.1
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
10.3
PAGE 115
ADVANCED OPTIONS
The advanced option allows the user to set the PIR Occupancy Sensor the same
way as a KEY SWITCH INPUT UNIT, the GUI also features an option to reset the
Light, dark, Sunset and security fields in one operation by clicking on the field
header. The field headers are the 4 grey boxes above the key press command
boxes called Light, Dark, Sunset and Security.
FIGURE 10.2
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
10.4
PAGE 116
RECOVERY OPTION
The PIR Occupancy Sensors may not operate if the Key Functions are customised
in this option. To overcome this problem, the template employs a quick recovery
option.
By simply moving the mouse pointer over the Key fields and Double Right Clicking
ON the HEADER, all four Key Press fields are restored to the default values. No
other changes are made.
FIGURE 10.3
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
11.
PAGE 117
PROJECT MANAGER
The Project Manager is used to manage the projects on the PC’s hard drive. Each
project is characterised by a unique file.
The project manager also is the place where the reference between the stored
Group Address and the Tag descriptions are displayed. It is possible to edit and
delete project variables.
FIGURE 11.0
Figure 11.0 shows how group addresses and group descriptions are shown in
project manager. The group descriptions are stored in a tag database on the PC.
Descriptions are NOT stored in the C-Bus units. Only group address (numbers) are
stored in the C-Bus units. The only text stored in a C-Bus unit may be the PROJECT
NAME and PART NAME.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 118
11.1 ADDRESS EDITING
Tags (20 character strings) are used to describe the Group, Area and Application
Addresses are stored on the PC, the 2 digit hexadecimal address is stored on the
device itself.
When a PC running the C-Bus application software is connected to a C-Bus network
via a PCI and a network is uploaded or scanned the first thing the software does is
look for a project name stored in the C-Bus unit. Remember the only text stored in a
C-Bus unit is project name and part name.
Once a project name is found the software then tries to find a corresponding
database within the C-Bus directory of the same name. If one is found the software
then links each group address to a corresponding group description, as shown in fig
11.0.
If no database is found then the software will allocate a group description that looks
the same as the group address. Remember the group address is a 2 digit HEX
number. The group description is a 2 character word that looks like a number.
Figure 11.1 demonstrates this effect, showing also in this case, that group address
00 description has been replaced with the words Light 1.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 119
If projects are up loaded to the PC using the Network Up-load facility and the Tag
database linked to the project name is absent, the tags can be recreated/entered via
the Project Manager screen. It is a requirement that the edit facility in project
manager is used for this.
FIGURE 11.1
Figure 11.1 shows what an uploaded project may look like when tag database is lost
and editing has begun on group address 00. In this case group description 00 has
been replaced with group description Light 1.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
11.2
PAGE 120
IMPORT AND EXPORT DATA FILES
It is possible to Export a data file (project) to a backup file on the C Drive or to disk
Drive A for instance.
The project is stored as a separate file and may be used on other machines if
desired. The backed up project should have an extension of CB2, i.e. “project1.cb2”.
In the same way files from other machines may be added or imported to the Project
Manager, along with all the descriptive tag names.
FIGURE 11.2
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
11.3
PAGE 121
FILE TRANSFERS
Found in the Browser is a function to transfer from the Network to the Database and
from the Database to the Network.
These functions are used to transfer information between an actual installation and
the PC. If a network is up loaded it is possible to Add, Edit and Delete units to the
database. The Database Manager allows the user to access the available modules
on C-Bus.
FIGURE 11.3
Remember the Tag information is stored in the project file and is not actually down
loaded into the unit.
NOTES
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12.
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NETWORK BRIDGES
The Bridge unit is a network support device serving a number of functions. The
Network Bridge consists of two identical halves, each needing to be individually
programmed with their own operating parameters.
The Network Bridge serves the following functions:
Provides a system clock for data transmission synchronisation.
Provides optically isolation between adjacent networks.
Allows messages to pass between networks.
Provides a path for remote programming of units across networks
The Network Bridge should be used under the following conditions:
When the number of C-Bus units exceeds 100 units.
When the total cable length in the installation exceeds 1000 metres.
When there is a requirement to provide separation between networks, such
as in the case of a multi storey building where a Network Bridge is used
between floors to provide segregation.
A Network Bridge providing electrical isolation does not permit power transmission
through the device. Therefore separate power Supplies are required on both sides
of the Bridge.
NOTES
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12.1
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NETWORK TOPOLOGY
The network topology is the connection scheme between networks. C-Bus allows up
to 7 networks in depth (i.e. 6 bridges), but to minimise transmission delays, network
depth should be minimised. This is illustrated in the topologies below. These
topologies have been copied from Topology Manager in the C-Bus application
software.
It should be noted that the circles represent the C-Bus networks, the BLUE lines
represent the BRIDGES and the GREEN line represents the PCI. The circles have
colour representation of green indicating the “local network”, and the yellow
indicating the “far network/s”.
FIGURE 12.0
Figure 12.0 illustrates a 4 networks deep (3 bridges) system. A message is sent from
Network 251 (FB) to Local Network (FE) must pass through 3 bridges.
NOTES
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FIGURE 12.1
Figure 12.1 illustrates 4 networks (3 bridges) with minimised depth. No message
passes through more than one bridge to get to the Local Network (FE) from a
remote network (Network 253, Network 252 or Network 251).
NOTES
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Figure 12.0 shows a DAISY CHAIN configured network. Figure 12.1 shows a STAR
configured network. It should be noted that a COMBINATION of star and daisy chain
can be implemented. Below shows one possible combination.
FIGURE 12.2
As you can see Network 253, Network 252 and Network 251 are STAR connected
to the Local Network (254). In addition to this Network 250 is DAISY CHAINED with
Network 253. In this case a message from Network 250 to Local Network MUST
pass through Network 253, crossing of 2 bridges in fact, required.
NOTES
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12.2
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MULTI-NETWORK PROJECT
A multi-network project MAY be defined at the onset via the Project Manager.
Topology defined at the onset reserves the Unit Addresses for the Network Bridges.
FIGURE 12.3
To establish the correct paths the addressing of the networks is done from the users
relative position, and the topology is defined from the connection point of the PC.
The network to which the PC is connected to is referred to as the Local Network.
FIGURE 12.4
The green colour of the circle in figure 12.4 indicates the Local Network and
connection point of the PC.
NOTES
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12.3
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NETWORK ADDRESSING
Up to 255 Networks can be defined on C-Bus and each has a unique Network
Address. When the topology is defined at the onset of the project the addresses are
automatically defined and reserved for use by the Network Bridges. The Network
Bridge requires to be addressed, as follows:
The Unit Address of the near side of the bridge is the same as the Network Address
of the far side connection.
FIGURE 12.5
For example consider fig 12.5. Network 253 is considered the FAR NETWORK
(relative to local network) and Local Network (254) is called this as it is local relative
to the PC. The blue line, indicating a bridge unit, could be programmed in the
following way. The local network (254) would be “scanned in” using the application
software on a PC.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 128
All units on the local network would be shown in the relevant window, including one
half of the bridge unit. The shown bridge unit would be given the appropriate
address by using “change unit address” option in the application software. The
address would correspond with the ADJACENT or FAR NETWORK ADDRESS (as
set up in the TOPOLOGY manager). This tells the bridge, on the near or local side,
it is connected to that particular network on the far side.
Once this is done the FAR NETWORK can be “scanned in” and the bridge on the far
side (relevant to the local network) will be visible in the relevant window within the CBus application software. This side of the bridge will then be programmed with the
LOCAL NETWORK ADDRESS. This tells the bridge on the FAR SIDE it is
connected to the LOCAL NETWORK.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 129
The addressing of the Network Bridge permits remote access to networks from the
local network using the one PC Interface.
FIGURE 12.6
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 130
Once the Network Addresses have been set on both sides of the Network Bridge it
is possible to scan the far Side Network from the local network. From the local
network it is possible to:
Make changes to units on the near and far side networks
Toggle output states in the near and far side networks
Using the Windows option in the browser it is possible to view all networks
simultaneously if required.
The Network can be scanned by selecting the Network option form the browser and
selecting the required network from the available list of Networks.
12.4
NETWORK BURDEN AND SYSTEM CLOCK
The Network Bridge can also serve as a system clock, as can the PC Interface. If a
PC Interface and Network Bridge are detected on the same Network then one of the
units will automatically shutdown its system clock
NOTES
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12.5
PAGE 131
CONNECT APPLICATION
The connect function allows the user to send commands from one network to
another network. In this way it is possible to switch a load in a remote network form
the local network. Fig 12.6 shows the options of “connect applications” and
“Destination Network for Messages”.
The remote network must be connected to the local network by a bridge unit, the
connect function only applies across adjacent networks. The “Destination Network
for Messages” option allows for message routing from one network to another
remote network.
FIGURE12.7
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 132
The connect application can be configured to achieve various functions:
One way control
Bi-directional control
Control by Application type
The Connect Application field must be enabled and the target network selected from
the available list of networks.
Figure 12.6 shows the relevant options for connect application and destination
network for messages.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 133
EXERCISE
From the plan shown the following components are to be installed in the following
house.
1. Porch – 1 light (1 relay channel) on/off controlled by switch and PIR unit
using 1 key of the 4 key units.
2. Veranda – 2 lights (1 relay channel) on/off controlled by same PIR unit as
Porch 1 key of the 4 key units.
3. Living/Dining – 2 lights (2 dimmer channels) using memory dimmer and
minimum level of 20% using 2 keys of the 4 Key unit.
4. Foyer – 2 lights (1 dimmer channel) using toggle dimmer and minimum level
of 30% using 1 key unit.
5. Using the Scene controller set up 1 key to bring Master Bedroom, Parents
Lounge up to 50% level (i.e. use dimmer channels) and Balcony, Ensuite
and Robe on (i.e. use relay channels).
6. Using the Scene controller set up 1 key to bring Master Bedroom, Parents
Lounge up to 100% level (i.e. use dimmer channels) and Ensuite and Robe
off.
7. Using the Scene controller set up 1 key to bring Master Bedroom, Parents
Lounge up to 20% level (i.e. use dimmer channels) and Balcony, Ensuite on.
8. Using the Scene controller set up 1 key to bring Master Bedroom, Parents
Lounge up to off level (i.e. use dimmer channels) and Balcony, Ensuite and
Robe off (i.e. use relay channels). In other words all off.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 134
9. Using 1 key of the 4 key Infrared key unit control a light level in the Kitchen
area.
10. Using 1 key of the 4 key Infrared key unit control a light level in the Breakfast
area.
11. Using 1 key of the 4 key Infrared key unit control light on/off in the Leisure
area.
12. Using 1 key of the 4 key Infrared key unit control light on/off in the Courtyard
Veranda.
13. Use light level sensor unit to control courtyard area on/off only.
14. Use 1 key of the 2 key units to disable the light level sensor.
15. Use 1 key of the 2 key units to disable the PIR and override the outside
veranda and the porch to on (ie use logic).
ADVANCED EXERCISE
1. Work out the requirements to do a basic electrical control of the house from
the plans supplied.
2. Then do a complete component count and costing using both DIN and
STANDARD range C-Bus units for complete control of the house shown in
the provided plans.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
PAGE 135
APPENDIX A
ADVANCED FUNCTIONS OUTPUT UNITS
The advanced functions give the user the opportunity to realise more complicated
functions with the C-Bus. Generally this involves manipulating other screens in the
Graphical User Interfaces, also abbreviated to the word “GUI’s”. In many instances
the default parameters are selected in the factory and do not require field changes
to have a fully functional and working C-Bus network when connected.
Section 9 covers standard range of C-Bus output units. It is worthwhile to take
some time to peruse the “older” style of C-Bus units as there are older systems still
in existence and an understanding
The following features/functions are also covered in section 15 (DIN Units).
Advanced Options for the Output Units allows the user to realise the following:
Logic assignments (AND or OR)
Power Up Delays
Power Up Default States
Sundry Parameters
Power on threshold levels
Power failure modes
Global parameters
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
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APPENDIX B
LOGIC ASSIGNMENT
Simple logic can be set with the C-Bus output units, which can roughly be equated
to Logic AND and Logic OR. The logic function operates differently for analogue
units (dimmers and analogue outputs) compared with digital units (relays).
A logic assignment is formed by checking two or more boxes, on each channel of
the device.
NOTES
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C-BUS VERSION 2.3.0 – TRAINING MANUAL
Exercises
1.
Assign the Group Address Master 1 to the one gang KEY SWITCH INPUT
UNIT.
2.
Assign the Group Addresses Light 1 and Light 2 to the four gang key switch,
program both switches as toggle functions.
Switch Status
Output Status
Master 1
Light 1
Light 2
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
NOTES
Light1
Light 2
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C-BUS VERSION 2.3.0 – TRAINING MANUAL
Exercises
Assign the Group Address Master 1 to the one gang KEY SWITCH INPUT UNIT.
Assign the Group Addresses Light 1 and Light 2 to the four gang key switch,
program both switches as dimmer functions.
Switch Status
Output Status
Master 1
Light 1
Light 2
50%
50%
50%
50%
50%
50%
50%
50%
25%
70%
10%
70%
25%
70%
10%
70%
10%
10%
70%
90%
10%
10%
70%
90%
Light1
Light 2
The logic assignments illustrated for the Dimmer apply just as well to Relay
modules, expect the Min/Max terms are replaced with And and Or, there are no
levels set for the Relay modules.
The Logic for the Relays is equivalent to wiring in series (AND) or wiring in parallel
(OR). Whereas for Dimmers it looks at the levels of the channels and either allows
you to ramp from a minimum level up to 100% or ramp down from a maximum level
to 0%.
NOTES
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C-BUS VERSION 2.3.0 – TRAINING MANUAL
This concept is illustrated by the diagrams below:
01
Terminal 1
02
LOGIC AND FUNCTIONS
02
04
05
Terminal 2
03
05
06
Terminal 3
LOGIC OR FUNCTIONS
01
02
Terminal 4
03
NOTES
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PAGE 140
APPENDIX C
TURN ON
The Turn On parameters is the minimum level that Output must reach before it is
turned On. This has a number of uses, in particular;
Set the minimum speed for ceiling sweep fans to ensure fan always spins, a dimmer
module is used here.
Set a minimum level for a relay to switch On, control signal may come from a key
switch or light level sensor, for instance.
NOTES
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PAGE 141
APPENDIX D
POWER FAIL
The Power failure regime is characterised by several steps as follows:
State of the Output Units state during the loss of C-Bus power.
State of C-Bus Output Units following restoration of the C-Bus power
supply.
State of the C-Bus Output Units upon reissue of status by the Input Units.
Each of these should be considered in turn and the optimum settings determined for
the longevity of the C-Bus equipment.
NOTES
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PAGE 142
APPENDIX E
STATE DURING LOSS OF C-BUS
When C-Bus power is lost (and assuming mains power is still available to the Output
Units), the state of the Outputs is determined by the jumpers on the Output Units.
Jumpers located on the PCB assemblies (dimmers, relays and analogue units) are
set by the user so that on loss of C-Bus power (including short circuit on C-Bus), all
the outputs are either forced to the ON or OFF state.
NOTES
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PAGE 143
APPENDIX F
OUTPUT STATE ON RESTORATION OF C-BUS
The default setting of Output Units is on restoration of the C-Bus power supply the
outputs follow the level set on the slider, by first selecting “ Restore to Preset level
Shown Below “ option.
This is RECOMMENDED.
“ Restore to Previous Level “, restores the outputs to the state they were in before
power failure.
This is NOT RECOMMENDED as the value is stored in the device and wears the
memory locations, typically limited to 200,000 write operations.
NOTES
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C-BUS VERSION 2.3.0 – TRAINING MANUAL
APPENDIX G
INPUT UNITS REISSUE THEIR LEVELS
If the check box for this option is enabled, then Input Units reissue their status in a
period of 5 MMI periods, if the Input Units do not exceed the first time frame they
well continue to reissue their status until the Output Units match.
This may take several iterations and may be as short as 15 seconds but as long as
several minutes.
Example:
Dimmer Set at 60% Prior Power Loss
Output
State
Input Units
Reissue their
Status (5MMI)
60%
Restore to Level Shown Below
(Set to 100% on Slider)
Prior Loss
of C-Bus
C-Bus Power Lose
(Jumpers set to OFF position
on Dimmer module)
NOTES
Duration
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APPENDIX H
RESTORE LEVELS
The Power Restore Levels, can be programmed to achieve one of two functions
described below:
Restore to previous
level
On power up of the C-Bus Power Supply the
output channels restore to their previous level
prior to the loss of the C-Bus power supply.
Restore to preset
level shown below
On power up of the C-Bus Power Supply all
channels restore to the level set by the slider,
relay units choose from On or Off, dimmer and
analogue output units, choose any level
between 0 and 100%.
Input units reissue
their levels when
power is restored
Following the restoration of the output
channels as depicted in the two options above,
and within 5 MMI cycles, the outputs change
state to follow the state of the input units,
when this box is checked.
If the box is not checked, the outputs stay in
the current state, and input units are corrected,
that is they are made to follow the state of the
outputs.
Power Up Delay
The delay from power restoration (up to 1024
mSec), between each channel switching to the
state determined by the first two radio buttons.
NOTES
C-BUS VERSION 2.3.0 – TRAINING MANUAL
Notes
NOTES
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