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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – | – | ✓ | – | ✓ | ✓ | ✓ | ✓ |
| D | ✓ | – | ✓ | ✓ | ✓ | – | – | – | – | ✓ | – | ✓ | ✓ | ✓ | – |
Supported Flags
| Flag | Bit | Support |
|---|---|---|
| Error | F11.0 | ✓ |
| Zero | F11.1 | – |
| Carry | F11.2 | – |
Number of Steps
| Steps |
|---|
| 3 |
Operands
| Operand | Description |
|---|---|
| S | The first operand. Entries are REAL data registers or constants. This is the degree to convert to radians. The REAL value range is -2127 ~ 2128 (-1.7014118e+38 ~ 3.4028237e+38). The degree value range is -360° ~ 360°. |
| D | The second operand. Entries are only REAL data registers. This is where the conversion is saved as radians. |
Float Representation
| Mantissa | Exponent | Sign |
|---|---|---|
| Bit 0 ~ Bit 22 | Bit 23 ~ Bit 30 | Bit 31 |
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 the calculation exceeds the data register assigned to S or D.
Instruction Result
The value resulting from the RAD or RADP instruction is saved as a radian. The conversion for radians is: Radians = Degrees × ( π⁄180 )
Ladder Diagram Examples
RAD
The RAD instruction converts a REAL degree value, S, into radians and saves the result in an assigned REAL data register D.
When the contact, M0.0, is ON (1), the instruction converts the degree value, -1.700000, into the resulting radian value, -0.029671.
Memory Monitor
RADP
The RADP one-shot instruction converts a REAL degree value, S, into radians and saves the result in an assigned REAL data register D. Every time this instruction executes, it energizes the output only once.
When the contact, M0.1, is ON (1), the instruction converts the degree value, 2.450000, into the resulting radian value, 0.042761.
Memory Monitor
