ATS Communication Overview
485 Communication link
Viewpoint
ATS
IBM Compatible
LonWork / Modbus
GEZC Service School
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Contents
1.
Introduction
2.
LonWork
3.
Modbus Cards
4.
Modbus Factory Configuration
5.
Modbus Test Software
6.
ModScan
7.
EnerVista Viewpoint Software
8.
Modbus Protocol
9.
Repeater / Opto-isolator
10.
Troubleshooting
11.
Frequently Asked Questions (FAQ)
LonWork / Modbus
GEZC Service School
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1.
Introduction
• LonWork –
•
Proprietary Protocol
•
Closed Loop system
•
Need binding in the factory
• Modbus –
•
485 Communication link
Open Architecture
•
Configurable Address 1 ~ 247
•
Support up to 32 devices.
•
One master & Multiple slaves
LonWork / Modbus
Viewpoint
ATS
IBM Compatible
GEZC ATS Controller
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2.
LonWork / Modbus
LonWork
GEZC ATS Controller
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2.
1.
LonWork
Need rebind if additional units
(either annunciators or
LonWork cards) are added
LonWork / Modbus
GEZC ATS Controller
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3.
Modbus (for MX150/250)
If MX200/150/250 firmware version is 5.4 or below
• use Modbus 1.96
• See O&M manual, 50R-2200
• Regs up to 48
• Card Assy P/N: 50P-1105
• Configuration Assy P/N: 50P-1124
LonWork / Modbus
If MX150/250 firmware version is 6.0 or above
• use Modbus 2.1
• See O&M manual, 71R-2200
• Regs up to 232
• Card Assy P/N: 50P-2035
• Configuration Assy P/N: 50P-1124
GEZC Service School
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4.
Modbus Factory Configuration
Connection differences between Modbus and MX150/250 Factory Configuration
For MX150/250 factory configuration:
1. Connect TD(A) of 50W-1208 to Pin 2 (socket J4) of MX150/250 Controller via PS5133.
2. Connect TD(B) of 50W-1208 to Pin 1 (socket J4) of MX150/250 Controller via PS5133.
For Modbus configuration/communication:
1. Connect TD(A) of 50W-1208 to the upper position via PS5140.
2. Connect TD(B) of 50W-1208 to the lower position via PS5140.
LonWork / Modbus
GEZC Service School
RS232-to-485 Converter: 50W-1208
Belden Shielded Twisted Pair cable:
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4.
Modbus Factory Configuration
Modbus Factory Configuration Software (50P-1111) Rev 1.8
Belden Twisted Pair cable
RS232-to-485 Converter: 50W-1208
Supporting accessory:
One Port USB-232 converter
(with GEZC’s part number: 50W-1223 or
NI part number: 778472-01) shall be used.
For information about the USB converter,
visit -http://sine.ni.com/nips/cds/view/p/lang/en/nid/12844
LonWork / Modbus
GEZC Service School
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4.
Modbus Configuration Software (50P-1111)
LonWork / Modbus
GEZC Service School
Slide 9 of 23
4.
Modbus Configuration Software (50P-1111)
LonWork / Modbus
GEZC Service School
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5.
Modbus Test Software (50P-1170)
LonWork / Modbus
GEZC Service School
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5.
Modbus Test Software (50P-1170)
LonWork / Modbus
GEZC Service School
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5.
Modbus Test Software (50P-1170)
LonWork / Modbus
GEZC Service School
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6.
ModScan Software
Step 1:
Open browser to “modscan” folder
Step 2:
Double click “ModScan32.exe”
Step 3:
Click “OK” without enter info.
Step 4:
Wait till OK appears. Then click OK again.
• Need to know register map
• ModScan trial version have limited com time
LonWork / Modbus
GEZC Service School
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6.
ModScan Software
• Need to know register map
• ModScan trial version have limited com time
LonWork / Modbus
GEZC Service School
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7.
EnerVista ViewPoint
GEZC P/N:
EnerVista O&M manual: http://www.geindustrial.com/products/manuals/enervista/EVVPmon510.pdf
Trial Version can be downloaded at: http://www.geindustrial.com/multilin/enervista/viewpoint/monitoring.htm
LonWork / Modbus
GEZC Service School
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7.
Step 1:
Step 2:
Step 3:
Step 4:
LonWork / Modbus
EnerVista ViewPoint
Create a device name and intended COM settings (depends on the dominant equipment).
From the field “Device Type”, select OTHERS.
From the field “Order Code”, enter MX150 or MX250.
From the field “Version”, select 5.4x or 6.0x.
GEZC Service School
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8.
Modbus Protocol
• Supported Modicon functions
• 01 -- Coils Read
• 03 -- Registers Read
• 05 -- Coil Write Single
• 06 -- Register Write Single
• 15 -- Coil Write Multiple
• 16 -- Register Write Multiple
• Query and Response
•
Handshaking
•
Exception response
•
Fn -- 81, 83
LonWork / Modbus
GEZC Service School
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9.
Repeater / Opto-Isolator (50W-1225)
• Optically isolated
• Repeater
• Support 2-or-4 wires (half duplex and full duplex)
• Allows grounding both @ master and slave devices -- No ground loop issue
• Product description Link -- http://www.bb-elec.com/product_family.asp?FamilyId=1
• Datasheet link -- http://www.bb-elec.com/bb-elec/literature/485OP_2004ds.pdf
LonWork / Modbus
GEZC Service School
Slide 19 of 23
9.
Repeater / Opto-Isolator (50W-1225)
Length of cable shall be
less than 1 foot to prevent
transients pick up from
adjacent power line
MX150/250
Controller
RS485 twisted pair
(from PLC or PC)
(-)
(+)
Data In (A)
Data In (A)
Data In (B)
Data In (B)
Data Out (A)
Data Out (B)
Cable
gnd
shield
Signal Gnd
PROT Gnd
A
B
Modbus
Assy
Data Out (A)
B&B
Model: 485OP
RS485 to RS485
Optical Isolator/
Repeater
Connect
to MX
chassis
ground
Data Out (B)
Signal Gnd
PROT Gnd
+12VDC
Ground
Circuit Gnd
J4
1
3
Wiring Diagram for 485OP Connection
LonWork / Modbus
GEZC Service School
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+12V (Output)
400mA max.
10.
Troubleshooting
Technique of Troubleshooting
• Make sure Network option is ON
•
•
For MX150/250 -- can be set in user menu
For MX200 – Must be set in factory mode
LonWork / Modbus
GEZC Service School
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10.
Troubleshooting
Technique of Troubleshooting
• Make sure cable is less than 3000ft
Otherwise add repeater.
• Perform local communication
1 master – to – 1 slave device
• Perform global communication
a. Configuration via 50P-1111
b. EnerVista:
b.1 – Setup
b.2 – Plug-n-play
• Have spare (good) devices
(I.e. Converter, Modbus card)
LonWork / Modbus
GEZC Service School
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11.
Q&A
• Terminating Resistor – For noise cancellation
• Noise issue due to EMI effect (I.e. Motor drive)
• Typically chassis ground one (master) end of shield but not both.
(use Belden shielded pair)
• Network length –
•
up to 3000 feet
•
More than 3000 feet will need a repeater
• Need to understand the register map
• Modbus’ connection is polarity specific
• LonWork’s connection is non-polarity specific
• Conversion of Half-to-full duplex or vice versa:
LonWork / Modbus
GEZC Service School
Use 50W-1225
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