Will flip the state of a tag. Intended for use with digital tags, but will work with analog tags. Used with SETVAL. If digital state is 0 and is a two state digital, %REVERSE will flip state from 0 to 1. If analog tag, %REVERSE will flip it based on percent of span. If current value is 25% of span, %REVERSE will make it 75% of SPAN.
<SETVAL>PumpStart=%REVERSE # will reverse state of PumpStart
# from On to OFF or from OFF to on