New to PLC and Unity Pro

I am designing a code to display an Alarm after the switch is pressed on for more than seconds.When I am using TON timer in unity pro and I give it any input, it gives error saying that topological type is incompatible . I have tried changing the input to boolean type. Still no effect.Can somebody tell me what I am doing wrong here?

i dont know alot about Unity Pro it seem similar to concept, did you check your i/o card

The I/O Card's fine.Still cant get the issue resolved

change bit type to ebool for input ( %I ) and also for memory bit addresses (%M)

Yes, changing to EBOOL type should correct your issue, it worked for me. I had a mix of BOOL and EBOOL tags that were located (%I or %M). I think the scenario with the type BOOL occurs when you first create the tag and then go back and locate it later. At least that appears to have been my issue.

Thanks,
-Brad