Mitsubishi Electric R16MTCPU Programming Manual page 37

Processing details
■Controls
• Request to start the servo program specified with (n2) program No.
• It is necessary to take an inter-lock by the start accept flag of CPU buffer memory and user device so that multiple
instructions may not be executed toward the same axis of the same Motion CPU No.
Refer to the start accept flag (system area) for details of the start accept flag. (Page 82 Start accept flag
(System area))
■Operation
Outline operation between CPUs at the MP.SVST and DP.SVST instruction execution is shown below.
• MP.SVST instruction
Sequence program
MP.SVST instruction
Axis start accept flag
(System area)
CPU dedicated transmission
(Non-fixed cycle)
Servo program
Complete device (D1+0)
Status display device (D1+1)
at the completion
• DP.SVST instruction
Sequence program
DP.SVST execution
Axis start accept flag
(System area)
CPU dedicated transmission
(Fixed cycle)
Communication
cycle
Servo program
Complete device (D1+0)
Status display device (D1+1)
at the completion
*1 Set in [System Parameter]  [Multiple CPU settings] in GX Works3
ON MP.SVST execution
Request
ON
data set
Transfer
Response
data set
DP.SVST execution
ON
Request data set
ON
Transfer Transfer
Response
data set
*1
END END
Servo program
executed processing
ON
ON: Abnormal completion only
1 scan
END END
Servo program
executed processing
ON
ON: Abnormal completion only
1 scan
2 MOTION DEDICATED PLC INSTRUCTION
2.2 Motion Dedicated PLC Instruction
2
35