58 Rockwell Automation Publication ICSTT-RM447M-EN-P - July 2019
Chapter 3 Controller Functionality
You can set up a list of messages (commands) for each slave device. MODBUS
read commands cause data to read from the slave device to the MODBUS
Master, while MODBUS write commands cause data to be copied from the
MODBUS Master to the slave device. You can also define a sequence of
broadcast write commands, which a MODBUS Master can send to multiple
MODBUS RTU slaves without requiring an acknowledgment. The
AADvance controller can control and monitor each of the MODBUS Master
objects and their slave links.
MODBUS Master Hardware and Physical Connections
The MODBUS Master functionality is built into the 9110 Processor Module.
The physical communication ports are located on the 9100 Processor Base
Unit. You do not need to add any other hardware to the AADvance controller
apart from other components to make the physical connections to the
WARNING: The MODBUS Master functionality has a safety integrity level of
zero (SIL 0) and must only be used for non-safety applications.
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