Instruction Parameters
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| S2 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| D | ✓ | – | ✓ | ✓ | ✓ | – | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | ✓ | – |
Supported Flags
| Flag | Bit | Support |
|---|---|---|
| Error | F11.0 | ✓ |
| Zero | F11.1 | ✓ |
| Carry | F11.2 | – |
Number of Steps
| Steps |
|---|
| 4 |
Operands
| Operand | Description |
|---|---|
| S1 | The first operand. Entries are WORD data registers or constants. The signed value range is -32,768 ~ 32,767 (216). The unsigned value range is 0 ~ 65,535 (216-1). The Hexadecimal value range is H0000 ~ HFFFF. |
| S2 | The second operand. Entries are WORD data registers or constants. The signed value range is -32,768 ~ 32,767 (216). The unsigned value range is 0 ~ 65,535 (216-1). The Hexadecimal value range is H0000 ~ HFFFF. |
| D | The third operand. Entries are only WORD data registers. This is where the result of a logical S1 XNOR S2 is saved. |
Notice
Error Flag (F11.0) Notice
The error flag, F11.0, will be ON for one scan when the address of the data register assigned by @D exceeds the range of the data register, D. The range of the data register, D, is dependent on the CPU type. F11.0 turns ON when the value of the data for a logical XNOR exceeds the data register assigned to S1 or S2.
Logical Operation
The WXNR and WXNRP instructions perform a logical XNOR on each bit of S1 and S2.
Ladder Diagram Examples
WXNR
The WXNR instruction performs a logical XNOR on the WORD value, S1, and the WORD value, S2, and saves the result in an assigned WORD data register, D.
When the contact, M0.0, is powered ON (1), a logical XNOR operation is performed on the WORD data registers, D20 and D22. The result of the logical XNOR operation is saved in the WORD data register, D24.
Memory Monitor
WXNRP
The WXNRP one-shot instruction performs a logical XNOR on the WORD value, S1, and the WORD value, S2, and saves the result in an assigned WORD data register, D. Every time this instruction energizes, it executes only once.
When the contact, M1.0, is powered ON (1), a logical XNOR operation is performed on the WORD data registers, D26 and D28. The result of the logical XNOR operation is saved in the WORD data register, D30.
Memory Monitor
