Multiple assignments

NOTICE

In the case of multiple assignments within a code line, the individual assignments are not processed from right to left, but all assignments refer to the operands at the end of the code line.

Example

FUNCTION funCompute : BOOL
VAR_INPUT
        xIn : BOOL;
END_VAR
IF xIn = TRUE THEN
        funCompute := TRUE;
        RETURN;
END_IF

PROGRAM PLC_PRG
VAR
        xSetVariable: BOOL;
        xResetVariable: BOOL := TRUE;
        xVar: BOOL;
END_VAR
xSetVariable S= xResetVariable R= funCompute(xIn := xVar);

‎xResetVariable‎ gets the ‎R=‎ assignment of the return value of ‎funCompute‎. ‎xSetVariable‎ gets the ‎S=‎ assignment of ht return value of ‎funCompute‎, but not from ‎xResetVariable‎.