Concept DFB timer error

C

Thread Starter

chris

I have replaced a faulty CPU in one of our customers' systems. The config and program, DFBs load fine BUT a least one timer now times out prior ahead of its target time, i.e. as soon as it is triggered to run. This is causing the system to error and I can't stop the timer from not reaching its end.

Why would the DFB timer not run correctly?
 
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