Operators
Operators supported and specified by IEC-61131-3
| Operator | Symbol | Examples |
|---|---|---|
| Parentheses | (Expression) | (A+B/C), (A+B)/C, A/(B+C) |
| Dereference ¹ | ^ | R^ |
| Unary minus | - | -A, - A |
| Unary plus | + | +B, + B |
| Complement | NOT | NOT C |
| Exponentiation | ** | A**B, A ** B |
| Multiplication | * | A*B, A * B |
| Division | / | A/B, A / B / D |
| Addition | + | A+B, A + B + C |
| Subtraction | - | A-B, A - B - C |
| Comparison | < , > , <= , >= | A < B |
| Equality | = | A = B, A = B, A = B & B = C |
| Inequality | <> | A <> B, A <> B |
| Boolean AND | &, AND | A & B, A & B, A & B & C, A AND B |
| Boolean Exclusive OR | XOR | A XOR B |
| Boolean OR | OR | A OR B |
NOTE!: ¹ Check if the equipment has operator support.