M221 how to monitor a word variable and trigger an output when the value changes
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Posted: 2022-07-1608:00 PM
M221 how to monitor a word variable and trigger an output when the value changes
using EcoStruxure machine expert basic with M221 PLC to program a boolean output variable to turn on when there is a change of value in a word variable.
ie. is there a change of state function for a word variable ?