Allen-Bradley 2080-LC20-20QBB User Manual page 78

Chapter 5 Communication Connections
68
2. Select Modbus RTU on the Driver field.
3. Specify the following parameters:
• Baud rate
• Parity
• Unit address
• Modbus Role (Master, Slave, Auto)
Modbus RTU Parameters
Parameter Options
Baud Rate 1200, 2400, 4800, 9600, 19200, 38400
Parity None, Odd, Even
Modbus Role Master, Slave, Auto
4. Click Advanced Settings to set advanced parameters.
Refer to the table for available options and default configuration for
advanced parameters.
Modbus RTU Advanced Parameters
Parameter Options
Media RS-232, RS-232 RTS/CTS, RS-485
Data bits Always 8
Stop bits 1, 2
Response timer 0...999,999,999 milliseconds
Broadcast Pause 0...999,999,999 milliseconds
Inter-char timeout 0...999,999,999 microseconds
RTS Pre-delay 0...999,999,999 microseconds
RTS Post-delay 0...999,999,999 microseconds
Rockwell Automation Publication 2080-UM005E-EN-E - March 2018
Default
19200
None
Master
Default
RS-232
8
1
200
200
0
0
0