Chapter 6 Applied Instructions 7. This instruction has no limitation during editing, but it only allows eight sets of pulse width detection instructions to run simultaneously. The system ignores the ninth or later sets of the pulse width detection instruction and there are no error messages. When executing this instruction, the setting values for the operands are recorded, and you cannot edit the parameters during execution. 8. Before executing this instruction, check the input hardware response time and the pulse time set in HWCONFIG. For example, when the value in S 2 is set to 0 or 2, that means the unit of time measurement is microseconds (μs).
Set the S 1 input value to 0 to disable the Input Point Filter Time in HWCONFIG. Example Suppose there is a pulse signal of 10kHz in the input M0. When M0 is ON, the PWD instruction detects the input signal on X0 with the pulse width stored in D10/D11 (32-bit data), the time unit is set to 0, and the detected pulse width from D10 is 50 µ s. 6_ 6-295