Mitsubishi MELSEC-Q Series User Manual page 238

14
DEDICATED INSTRUCTIONS
Sequence program
ZP.PSTRT instruction
Completion device
Completion status display device
(4) Error
(5) Precautions
14
- 5 14.3 ZP.PSTRT1, ZP.PSTRT2, ZP.PSTRT3
END processing END processing
ON
OFF
OFF
OFF
At error completion of the ZP.PSTRT
turns ON and the error code is stored in the completion status ((S) +1).
Refer to the error code list in Section 15.2.1, check the error and take corrective
action.
(a) When the positioning control is started with the ZP.PSTRT
positioning start signal (Y8 to YA) and the start complete signal (X8 to XA) do not
turn ON.
Check the positioning control operation status with the ZP.PSTRT
command and the BUSY signal (X8 to XA).
(b) After the control has been started with the ZP.PSTRT
command is entered without completing positioning, the completion device (D)
turns ON for one scan and the ZP.PSTRT
(c) The ZP.PSTRT instruction can be executed while the module READY signal
(X0) is ON. Even though the ZP.PSTRT
the module READY signal (X0) is OFF, the instruction is not executed.
Before executing the ZP.PSTRT
controller CPU READY signal (Y0) and the module READY signal (X0).
(d) When the remote I/O station (Q corresponding MELSECNET/H network remote I/
O module) is used, this dedicated instruction (ZP.PSTRT ) cannot be used.
(e) When the ZP.PSTRT
set for "Start number"(device: (S) +2) of the control data, "Dedicated instruction
error" (error code: 804) occurs and the positioning control cannot be started.
Completion of the ZP.PSTRT
instruction execution
instruction, the error completion signal ((D) +1)
instruction execution ends.
instruction execution is requested while
instruction, turn ON the programmable
instruction is executed with other than 0, 9000, and 9001
END processing END processing
ON
ON
Error completion
Normal
completion
One scan
instruction, the
start
instruction, if the stop