Component
Modbus address (Holding
register and input register)
Breaker priority: Buffered
value
Breaker priority: Value
Shaft generator
14004
0
0
Genset 2
14005
2
1
Emergency genset (GB3)
14006
0
0
Genset 1
14007
1
2
Table 17.7
Breaker priority values after writing the buffered values to the controller
Component
Modbus address (Holding
register and input register)
Breaker priority: Buffered
value
Breaker priority: Value
Emergency genset (TB)
14001
0
0
Shore connection
14002
0
0
Bus tie breaker
14003
0
0
Shaft generator
14004
0
0
Genset 2
14005
2
2
Emergency genset (GB3)
14006
0
0
Genset 1
14007
1
1
17.5 Setting up Modbus
17.5.1 Setting up Modbus TCP/IP communication
In order to communicate with a controller through Modbus TCP, the following conditions must be met:
•
The device interfacing with the controller must be connected to one of the following:
◦
An Ethernet connection on the controller communication module (that is, PCM3.1).
◦
Another controller in the DEIF network.
•
The controller must have a unique IPv4 address which is active.
•
Modbus TCP communication software must be installed on the device communicating with the controller.
More information
See
Wiring the communication
in the
Installation instructions
for more information about how to wire the Ethernet
connection to the controller.
17.6 Modbus alarm
17.6.1 Modbus communication timeout
The controller activates this alarm if there are no Modbus requests within the delay time.
Configure the parameters under
Configure > Parameters > Communication > Modbus > Modbus communication timeout
.
Table 17.8
Default parameters
Parameter
Range
Default
Delay
0.1 s to 1 h
10 s
Enable
Not enabled, Enabled
Not enabled
Action
Warning
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