Operator: OR_ELSE The operator is an extension [...] _ELSE operator is permitted

Operator: SHL The IEC operator [...] for this operation as defined

Operator: SHR The IEC operator is used for bitwise

Operator: ROL The IEC operator [...] for this operation as defined

Operator: ROR The IEC operator [...] for this operation is defined

Operator: CAL The IEC operator is used for calling

Operator: ABS The IEC operator yields the absolute value of a

Operator: SQRT The IEC operator yields the square root of a

Operator: LN The IEC operator yields the natural logarithm of a

Operator: EXP The IEC operator yields the exponential function