2. Serial Protocols
ROS® v3.11User Guide 66 RMC30
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Response Timer
Synopsis: 50 to 10000
Default: 1000 ms
The maximum allowable time to wait for the RTU to start to respond.
Auxiliary TCP Port
Synopsis: 1024 to 65535 or { Disabled }
Default: Disabled
The TCP Modbus Server always listens on TCP port 502. It may be additionally configured
to listen on this auxiliary port number, accepting calls on both.
Send Exceptions
Synopsis: { Disabled, Enabled }
Default: Enabled
This parameter enables/disables sending a TCP Modbus exception back to the master if
a response has not been received from the RTU within expected time.
Link Stats
Synopsis: { Disabled, Enabled }
Default: Enabled
Enables link statistics collection for this protocol.
2.3.6. Modbus Client
Figure 2.20. Modbus Client Form
IP Port
Synopsis: 1 to 65535
Default: 502
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