How can you change the configuration of the Momentum CPU Serial port 1 from RS485 to RS232?

How can we help you today?

Issue:

When I try to change the Serial Port on the Momentum CPU from RS485 to RS232, the configuration is grayed out in Control Expert (Unity Pro).

Product Line:
Momentum PLC

Environment:
Control Expert v14.0 and above
Unity Pro XL V13

Cause:
The serial port can not be changed from RS485 to RS232.

Resolution:

Serial Channel 1 on the Momentum CPU modules 171 CBU 78090, 171 CBU 98090 and 171 CBU 98091 is a static RS485 port.
It is not configurable to be used with RS232.

If this FAQ did not solve your issue, you can chat with us at chat with us or e-mail us at customer.services@se.com to create a case with our Technical Support Team.

If you are not located in North America, please contact your local Customer Care Center for assistance:
Support | Schneider Electric Global (se.com)