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Rockwell Automation Publication 5069-UM003B-EN-P - January 2020
Chapter 2
Compact 5000 I/O Serial Module Operation
Multiple Connections to One Serial Module
Unlike other Compact 5000 I/O modules that make one connection to the
owner-controller, the Compact 5000 I/O Serial module can have multiple
connections based on how the module channels are configured.
The Serial module is required to use the Data connection type in the Module
Definition dialog box. However, the module has two channels that you must
configure independently of each other. You can disable a channel or choose a
mode, that is, the Generic ASCII, Modbus Master, Modbus Slave, DF1 or
DH-485 mode.
The combination of channel configuration choices determines the number of
connections that are made between the owner-controller and the Serial module.
For example, consider the following examples:
• Channel 0 = Generic ASCII, Channel 1 = Modbus Slave - Two
connections are made between the owner-controller and the module.
Selected Protocol
Description
Generic ASCII
The module returns the following to the owner-controller:
• General fault data
• Input Data
• Output Data
Modbus Master
The module returns the following to the owner-controller:
• Generic fault data
• Last executed command data
• Input/Output
• Operation status
Modbus Slave
The module returns the following to the owner-controller:
• Generic fault
• Slave input data
• Slave output data
DF1
The module returns the following to the owner-controller:
• General fault data
• Input Data
• Output Data
DH-485
The module returns the following to the owner-controller:
• General fault data
• Input Data
• Output Data
