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 DWORD data registers or constants. The signed value range is -2,147,483,648 ~ 2,147,483,647 (232). The unsigned value range is 0 ~ 4,294,967,295 (232-1). The Hexadecimal value range is H00000000 ~ HFFFFFFFF. |
| S2 | The second operand. Entries are DWORD data registers or constants. The signed value range is -2,147,483,648 ~ 2,147,483,647 (232). The unsigned value range is 0 ~ 4,294,967,295 (232-1). The Hexadecimal value range is H00000000 ~ HFFFFFFFF. |
| D | The third operand. Entries are only DWORD 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 DXNR and DXNRP instructions perform a logical XNOR on each bit of S1 and S2.
Ladder Diagram Examples
DXNR
The DXNR instruction performs a logical XNOR on the DWORD value, S1, and the DWORD value, S2, and saves the result in an assigned DWORD data register, D.
When the contact, M0.2, is powered ON (1), a logical XNOR operation is performed on the DWORD data registers, D30 and D33. The result of the logical XNOR operation is saved in the DWORD data register, D36.
Memory Monitor
DXNRP
The DXNRP one-shot instruction performs a logical XNOR on the DWORD value, S1, and the DWORD value, S2, and saves the result in an assigned DWORD data register, D. Every time this instruction energizes, it executes only once.
When the contact, M0.4, is powered ON (1), a logical XNOR operation is performed on the DWORD data registers, D40 and D43. The result of the logical XNOR operation is saved in the DWORD data register, D46.
Memory Monitor
