270 Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
Appendix C Reconfigure a Module Online
2. Reconfigure the I/O module.
3. Click OK.
Reconfigure a Module Via Ladder Logic
It is sometimes advantageous to change the functional operation of a module
in the ControlLogix® system automatically via the user program instead of by
using the Logix Designer application to reconfigure it. This way, changes in
the process can dictate when the reconfiguration takes place rather than you
performing that function manually.
The1715 modules support sending a MSG instruction of type Module
Reconfigure. This MSG instruction can be sent to a module to reconfigure it
without stopping the module.
Use a MSG instruction of type Module Reconfigure to send new configuration
information to an I/O module. During the reconfiguration, the following
occurs:
• Input modules continue to send input data to the controller.
• Output modules continue to control their output devices.
The following steps are used in this example when reconfiguring a module via
ladder logic.
1. Move new configuration parameters to the Configuration portion of the
tag structure that is associated with the module.
2. Use a message instruction to send a Reconfigure Module service to the
same module.
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