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Resetting Timer Unit used for Timer Interrupt

Question asked by Josiah Carlisle on Jul 23, 2019
Latest reply on Aug 1, 2019 by Josiah Carlisle

I'm trying to use a timer to catch the end of a ModBus message.  ModBus has a minimum delay time between messages, so my goal was to have the interrupt period be the minimum delay time, and have the timer reset whenever a new character is received.  However, when I create a TimerInt component based off the TimerUnit component, the ResetCounter function because 'grayed-out'.  I know this is a common method for determining the end of a ModBus message, so how would I go about doing this with Processor Expert?