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Author Topic: Do more timer  (Read 7246 times)

azeotrope

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Do more timer
« on: November 22, 2014, 04:39:16 PM »
I have noticed my timers are running 2x too fast. A tmr set for 30 sec runs 15 sec. What can cause this?

Thanks

franji1

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Re: Do more timer
« Reply #1 on: November 22, 2014, 05:17:05 PM »
Make sure you are only using a timer resource once, e.g. T0 - you should only have one timer instruction using T0.  Look in your Cross Reference view, or float your cursor over the timer in question and let the Cross Reference pop-up and see where the timer structure is being used as an OUTPUT or INPUT/OUTPUT (in/out).

You would also be seeing a Program Check Warning being logged at download time for duplicate timer structures being used (you can also run Program Check via the Online Toolbar or via the menu, PLC->Program Check).

azeotrope

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Re: Do more timer
« Reply #2 on: November 23, 2014, 09:49:11 AM »
Yeah that was it, should have seen that. Thanks