Connection Requirements
Supported PLC Series
| PLC-AES | PLC-FB | PLC-ES |
|---|---|---|
| ✓ | ✓ | ✓ |
Supported Data Registers
| M | X | Y | K | L | F | T | C | S | Z | R | Q | D | @D | Constant |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
Supported Flags
| Flag | Bit | Support |
|---|---|---|
| Error | F11.0 | – |
| Zero | F11.1 | – |
| Carry | F11.2 | – |
Number of Steps
| Steps |
|---|
| 1 |
Operands
| Operand | Description |
|---|---|
| S | This is the BOOL data register. This is the bit number to toggle the contact ON/OFF. When the bit is 0, the contact is OFF. When the bit is 1, the contact is ON. |
Notice
Contact Orientation
The INV operator behaves as follows:
- The INV operator performs a reverse operation with the operation result to that point.
- It uses the resulting value as a new operation result.
- Contact A reverses to Contact B an Contact B reverses to Contact A.
- Series connection (OR) reverses to parallel connection (AND) and parallel connection (AND) reverses to series connection (OR).
- The INV operator shouldn’t be used with LD and OR contact orientations.
- When using a ladder block, the operation result is inverted within the range of the ladder block.
- To operate using the INV operator with the ANB block series connection, pay attention to the range of inversion.
Timing
Ladder Diagram Examples
LD Gate Invert Result Example
The INV operator inverts the result of the operation up to its point. It uses the new result as the execution condition. The result of this inversion will be the same as the OR Gate Inversion.
If the open contact, M14.0, is powered OFF, the INV operator inverts the result to ON. The coil, Y56.8, is energized.
If the open contact, M14.0, is powered ON, the INV operator inverts the result to OFF. The coil, Y56.8, is deenergized.
AND Gate Invert Result Example
The INV operator inverts the result of the operation up to its point. It uses the new result as the execution condition.
If the open contacts, M.68.3, M15.5, and M46.7, are powered OFF, the INV operator inverts the result to ON. The coil, Y18.9 is energized.
If the open contacts, M.68.3, M15.5, and M46.7, are powered ON, the INV operator inverts the result to OFF. The coil, Y18.9 is energized.
OR Gate Invert Result Example
The INV operator inverts the result of the operation up to its point. It uses the new result as the execution condition. The result of this inversion will be the same as the LD Gate Inversion.
If both open contacts, M70.8 and M51.0, are powered OFF, the INV operator inverts the result to ON. The coil, D105.4 is energized.
If the open contact, M70.8, is powered OFF or the open contact, M51.0, is powered ON, the INV operator inverts the result to OFF. The coil, D105.4 is energized.
If both open contacts, M70.8 and M51.0, are powered ON, the INV operator inverts the result to OFF. The coil, D105.4 is energized.