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Old December 28th, 2017, 02:21 PM   #12
United States

jacoffey85 is offline
Join Date: Nov 2016
Location: NC
Posts: 74
Originally Posted by mk42 View Post
I've seen standard bits used for resets in Siemens safety programs often.
Fun thing I learned a little while back with Tia Portal V13, don't use HMI reset buttons inside of the safety program directly. Make sure to map it to another bit inside of a standard function first, then use that bit inside of the safety logic.

Not having the HMI input synchronized with the scan cycle would sometimes give us a major PLC fault for the safety telegram error.
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