Mitsubishi MELSEC Q Series Programming Manual page 369

1. With the PLSY instruction, the argument device data is registered in the work
2. Do not change the argument for the PLSY instruction during pulse output
3. The PLSY instruction can be used only once in all programs executed by the
Operation Error
(1) In the following case, an operation error occurs, the error flag (SM0) turns ON, and an error
code is stored into SD0.
• The device specified by
(For the Universal model QCPU, LCPU.)
Program Example
(1) The following program outputs a 10 Hz pulse 5 times to Y20 when X0 is ON.
[Ladder Mode]
area of the CPU module and counting operation is processed as a system
interrupt. (The device data registered in the work area is cleared by turning the
execution command OFF, or turning the STOP/RUN switch STOP RUN.) For
this reason, the pulses that can be output must have longer ON and OFF times
than the interrupt interval of the CPU module. The interrupt interval of individual
modules is shown below:
CPU Module Type Name
High Performance model QCPU, Process CPU,
Universal model QCPU, LCPU
directed by the PLSY instruction (while the execution command is ON). To
change the argument, turn OFF the execution command.
CPU module. The second and the subsequent PLSY instructions are not
processed.
exceeds the range of the corresponding device.
D
Interrupt Interval
[List Mode]
Instruction
Step
PLSY
1 ms
(Error code: 4101)
Device
6-167
1
2
3
4
4
6
7
8