ABB MRP31.0 - Page 8

Electrical installation
Modbus Connection
Connect Modbus to X3.
General
Arrange the communication cables as far away from the motor cables as possible. Avoid parallel runs. Use bushings at cable
entries.
—
Connector X3
PIN Description
 

 GND. Isolated signal ground
 Data A (inverting)
 
Bus termination

equipped with internal bus termination

devices located at bus ends.
Communication settings

communication / Modbus RTU) and are copied then automatically to the MRP31.0. After changing communication settings
perform a power cycle.
Master supervision

busfault reaction.
Modbus bus timeout
 
Default 0 ms (deactivated)

Supported baudrates

Modbus data frame
•  
•  
•  
•  
Slave address
 

bus address.

8 UNIVERSAL MOTOR CONTROLLER UMC100.3 | MRP31.0 MODBUS TCP COMMUNICATION MODULE MANUAL