Mitsubishi Electric R16MTCPU Programming Manual page 58

Processing details
■Controls
• The current value change of command generation axis (stopped axis) specified with (S1) is changed to the current value
specified with (n2).
• It is necessary to take an inter-lock by the start accept flag and user device of CPU buffer memory so that multiple
instructions may not be executed toward the same axis of same Motion CPU.
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.CHGAS and DP.CHGAS instruction execution by specifying "Jn" as Axis No. is
shown below.
• MP.CHGAS instruction
Sequence program
MP.CHGAS instruction
Axis start accept flag
(System area)
CPU dedicated transmission
(Non-fixed cycle)
Current value change
Complete device (D1+0)
Status display device (D1+1)
at the completion
• DP.CHGAS instruction
Sequence program
DP.CHGAS instruction
Axis start accept flag
(System area)
CPU dedicated transmission
(Fixed cycle)
Current value change
Complete device (D1+0)
Status display device (D1+1)
at the completion
*1 Set in [System Parameter]  [Multiple CPU settings] in GX Works3
2 MOTION DEDICATED PLC INSTRUCTION
56
2.2 Motion Dedicated PLC Instruction
MP.CHGAS execution
ON
Request
ON
data set
Transfer
Response
data set
DP.CHGAS execution
ON
Request data set
ON
Transfer Transfer
Response
Communication
data set
cycle *1
END END
Current value
change processing
ON
ON: Abnormal completion only
1 scan
END END
Current value change processing
ON
ON: Abnormal completion only
1 scan