
Configuring an M1 CPU with Concept
288
870USE10110 July 2004
Changing the Protocol on Modbus Port 2 for Momentum Components Using
Concept
Overview If your Momentum M1 CPU is using the Modbus port 2 provided by the 172 JNN 210
32 option adapter, you can specify whether it will use the RS232 or RS485 protocol.
The factory-set default for Modbus port 2 is RS485.
Procedure From the Modbus Port Settings dialog box, perform the steps in the following table
to change the protocol on Modbus port 2.
Step Action
1 Click on the down arrow under the Protocol heading.
Result: A menu appears with the two protocol options.
2 Click on RS232 or RS485.
Result: The Modbus Port Settings dialog box is updated with the protocol you
have specified.
9600
9600
RS485
Modbus Port Settings
Ok
Cancel
Help
Baud Data bits Stop bits Parity Delay(ms)
Address
Head slot Mode Protocol
1
2
8
8
1
1
Even
10
10
1
1
0
0
RTU
RTU
RS232
B
ridge Mode
Even
RS232
RS485
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