Signal Reverse specifies if data read from field is inverted.
For an analog tag, indicates the scale is reversed (e.g. 0 percent means 100% open for valve position). 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.
For a Discrete signal, depends on the number of states in the tag. For example, in a 2-state discrete tag, reverses 1 to 0. (e.g. reverses true to a false) In an 8 state Discrete Tag, 0 becomes 7, 1 becomes 6, 2 becomes 5 and 3 becomes 4, etc.
Range: 0 or 1 (Yes or No)
Field Type: Discrete
Tag fields: .SIGREV