2 MOTION DEDICATED PLC INSTRUCTION
2.3 Precautions
83
2
The start accept flag is set after instruction acceptance of by the Motion CPU as follows.
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.
Request
data set
ON
MP.SVST execution
Sequence program
MP.SVST instruction
Servo program
END END
Axis start accept flag
(System area)
ON
Complete device (D1+0)
ON
Status display device (D1+1)
at the completion
CPU dedicated transmission
(Non-fixed cycle)
1 scan
ON: Abnormal completion only
Transfer
Response
data set
Servo program
executed processing
MP.SVST H3E1 "J1" K11 M100 D100
Instruction
execution
command
SET M10
X0
Complete
device
M100
Start accept
flag of CPU
No.2(Axis 1)
U3E1
\G516.0
M10
Interlock
Interlock
RST M10
Interlock
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