20 Rockwell Automation Publication 5069-UM003A-EN-P - May 2018
Chapter 2 Compact 5000 I/O Serial Module Operation in a Logix 5000 Control System
• Channel 0 = Generic ASCII, Channel 1 = Modbus Master - Three
connections are made between the owner-controller and the module
Tabl e 2
shows the total number of connections for all protocol combinations.
Table 2 - I/O Connections For Each Protocol Combination
CH0 Protocol Choice
Disabled Generic ASCII Modbus Slave Modbus Master
CH1 Protocol Disabled 0 connection 1 connection 1 connection 2 connections
Generic ASCII 1 connection 2 connections 2 connections 3 connections
Modbus Slave 1 connection 2 connections 2 connections 3 connections
Modbus Master 2 connections
(1)
3 connections 3 connections 4 connections
(1) The Modbus Master can have 1 or 2 connections depending on the command list configuration.
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