Mitsubishi Electric R16MTCPU Programming Manual page 85

The start accept flag is set after instruction acceptance of by the Motion CPU as follows.
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
The start accept flag does not turn ON until the instruction accepting of instruction is completed by the Motion CPU after
instruction execution by the PLC CPU. Therefore, use a user device created interlock as required to prevent the execution of
the next Motion dedicated PLC instruction and avoid a same axis double start error.
■Program example
• Program which executes continuous start of servo program No. 11 for Axis 1 of the Motion CPU (CPU No.2), while X0 is
ON.
U3E1
X0 \G516.0 M10
Interlock
Instruction Start accept
execution flag of CPU
command No.2(Axis 1)
M100
Complete
device
END
MP.SVST execution
ON
Request
ON
data set
Transfer
Response
data set
MP.SVST H3E1 "J1" K11 M100 D100
END
Servo program
executed processing
ON
ON: Abnormal completion only
1 scan
SET M10
Interlock
RST M10
Interlock
2 MOTION DEDICATED PLC INSTRUCTION
2
83
2.3 Precautions