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. This is the base*. 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. This is the exponent. 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 DWORD data registers. This is where the power 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 exponentiation exceeds the data register assigned to S1 or S2.
Signed Overflow
The value range for the assigned DWORD data register, D, is -2,147,483,648 ~ 2,147,483,647 (232).
- If the exponentiation result is greater than 2,147,483,647, the final result will be 2,147,483,647, and the value will not overflow.
- If the exponentiation result is less than -2,147,483,648, the final result will be -2,147,483,648, and the value will not overflow.
Tip: Operand Exponentiation Format
S1 raised to the power of S2. (S1S2)
Ladder Diagram Examples
PWR
The PWR instruction raises the base WORD value, S1, to the exponent WORD value, S2, and saves the power in an assigned WORD data register, D.
When the contact, M0.5, is powered ON, the WORD data register, D0, is raised to the power of the WORD data register, D2, and the power is saved in the DWORD data register, D4.
Memory Monitor
PWRP
The PWRP one-shot instruction raises the base WORD value, S1, to the exponent WORD value, S2, and saves the power in an assigned WORD data register, D. Every time this instruction executes, it energizes the output only once.
When the contact, M0.5, is powered ON, the WORD data register, D8, is raised to the power of the WORD data register, D10, and the power is saved in the DWORD data register, D14.
Memory Monitor
