CPU 318, problem with timers

We have a 6ES7 318-3FL01-0AB0, hardware rev 3, firmware rev 3.2.4.

We's just had a very similar problem with timers, following a power failure. Timers that were enabled would never time out. The timer value would just continually cycle around, starting to time down from some meaningless value, above what the timer was set to. Cycling the power didn't help. We resolved this issue by temporarily changing the code to disable the timer, then putting code back the way it should be.

I've just had a look though the corrections in the more recent firmware, but I can't find any mention of this issue being fixed.

Any sugestions?

Regards

Ross Umbers

Insight Engineering

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Split from Misbehaving Counters and Timers