Pro-C
Hi Mac. First make sure the lock which holds the modules into place is locked. Then press the reset button on the back of the front panel. You'll lose all the programming but this will reset the memory so the controller can recognize the new module. You could always switch the two modules around. If the problem still exists then it's not the module. Definetly try resetting the memory though.
Good luck!
EPARJ<< If you start a new thread someone will be glad to help you. You asked a question on top of someone elses question. Thank you!
If I can't fix it, it's broken!