4.2.12         Signal Reverse

Reverses an analog signal to indicate its complement with respect to the full-scale range (e.g. reverses a percent open valve position to percent closed).

SPANHI and SPANLO are switched in conversion and scaling to engineering units.  SPANHI is applied to 0 value from field device.  SPAN LO is applied to maximum value from field device.
Range:                    Yes or No
Field Type:            Discrete
Tag fields:             SIGREV