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. The value range is -1.7014118e+38 ~ 3.4028237e+38 (2-127 ~ 2128). |
| D | The second operand. Entries are only WORD data registers. This is where the conversion is saved. |
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 converting S exceeds the value range of the data register D.
Instruction Behavior
The INT and INTP instructions behave as follows:
- When the data to be converted exceeds the range of -32,768 ~ 32,767, it overflows.
- No flag is turned ON.
- The 32-bit REAL value, S, is rounded down to the nearest ones place.
Ladder Diagram Examples
INT
The INT instruction converts a REAL value, S, into a WORD value and saves the conversion in an assigned signed WORD data register, D.
When the contact, M0.0, is powered ON (1), the value of the REAL data register, D0, 2.156300, is converted into signed binary notation. The value of the conversion, 2, is saved in the WORD data register, D3.
Memory Monitor
INTP
The INTP one-shot instruction converts a REAL value, S, into a WORD value and saves the conversion in an assigned signed WORD data register, D. Every time this instruction executes, it energizes the output only once.
When the contact, M0.1, is powered ON (1), the value of the REAL data register, D10, -1.657830, is converted into signed binary notation. The value of the conversion, -1, is saved in the WORD data register, D13.
Memory Monitor
