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MELSEC-Q
14 DEDICATED INSTRUCTIONS
[Control data]
Device Item Setting data Setting range
Setting side
(
1)
(S)+0 System area – – –
(S)+1 Complete status
The state at the time of completion is stored.
• 0 : Normal completion
• Other than 0: Abnormal completion (error code)(
2)
–System
(S)+2 Start No.
The following data Nos. to be started by the PSTRT
instruction are designated.
•
Positioning data No. : 1 to 600
•
Block start : 7000 to 7004
•
Machine OPR : 9001
•
Fast OPR : 9002
•
Current value changing : 9003
•
Multiple axes simultaneous start : 9004
1 to 600
7000 to 7004
9000 to 9004
User
1: The data on the setting side is as follows.
• User : Data before the execution of dedicated instructions is stored by user.
• System: Data after the execution of dedicated instruction is stored by PLC CPU.
2: Refer to Section 15.2 for error codes at abnormal completion.
[Functions]
(1) The positioning start of the axes to be processed (See below) is carried out.
• PSTRT1: Axis 1
• PSTRT2: Axis 2
• PSTRT3: Axis 3
• PSTRT4: Axis 4
(2) The block start, OPR start, current value changing, and multiple axes
simultaneous start can be carried out by the setting of "start number" 7000 to
7004/9001 to 9004 in ((S)+2).
(3) The PSTRT
instruction completion can be confirmed using the complete devices
((D)+0) and ((D)+1).
(a) Complete device ((D)+0)
This device is turned ON by the END processing of the scan for which
PSTRT
instruction is completed, and turned OFF by the next END
processing.
(b) Complete state display device ((D)+1)
This device is turned ON and OFF according to the state in which PSTRT
instruction is completed.
• When completed normally :Kept unchanged at OFF.
• When completed abnormally:This device is turned ON by the END
processing of the scan for which PSTRT
instruction is completed, and turned OFF by
the next END processing. (same ON/OFF
operation as complete device).