Detects the use of the literals TRUE or FALSE in expressions
Justification: This kind of expression is obviously unnecessary and may indicate an error. In any case, the expression unnecessarily affects the runtime.
Importance: Medium
Example
PROGRAM PLC_PRG VAR xTemp1, xTemp2 : BOOL; END_VAR xTemp1 := xTemp1 AND NOT TRUE; xTemp2 := xTemp1 OR TRUE; xTemp2 := xTemp1 OR NOT FALSE; xTemp2 := xTemp1 AND FALSE; --> Uses of TRUE or FALSE in expressions