Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 899

Processing details
• This instruction outputs the pulses at the frequency specified by (s), by the number of times specified by (n), to the output
module with the output number (Y) in the device specified by (d).
• A frequency from 1Hz to 100Hz can be specified in (s). If the specified value in (s) is not in the range from 1 to 100, no
processing is performed.
• A value from 0 to 65535 (0000H to FFFFH) can be specified for the number of outputs in (n). If 0 is specified in (n), pulses
are output continuously.
• Only the output number (Y) corresponding to the output module can be specified for the pulse output in (d).
• The PLSY instruction starts pulse output on the rising edge of the command. When the command turns off, the PLSY
instruction stops pulse output.
Operation error
There is no operation error.
• The PLSY instruction stores the device data of the argument in the work area of the CPU module, and
performs the actual output operation using system interrupts. (The device data stored in the work area of
the CPU module is cleared by turning off the execution command or setting it to STOP then RUN.) For this
reason, the pulses that can be out must have longer on/off time than the interval of the CPU module. The
interrupt interval of the CPU module is 1ms.
• Do not change the argument of the PLSY instruction during pulse output by the instruction (the execution
command is on). To change the argument, turn off the execution command in advance.
• The PLSY instruction can be used only once in all programs running in the CPU module. The second or
subsequent PLSY instruction, if issued, causes no processing.
7 APPLICATION INSTRUCTIONS
7.17 Pulse Related Instructions
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