Publication 1747-RM001G-EN-P - November 2008
SLC Communication Channels 13-91
Configuring a Channel for Modbus RTU Master
To configure a channel for Modbus RTU master, first place the processor into
program mode and do the following using your programming software:
IMPORTANT
Modbus protocol may not be consistently implemented in
the field. The Modbus specification calls for the addressing
range to start at 1; however, some devices start addressing
at 0.
The Modbus Data Address in the Message Setup Screen
may need to be incremented by one to properly access a
Modbus slave’s memory, depending on that slave’s
implementation of memory addressing.
To bring up the Channel Configuration
interface, double-click on the Channel
Configuration icon.
To Next Page
Loading...
