Mitsubishi Electric MELSEC Q Series Programming Manual page 41

2 POSITIONING CONTROL BY THE MOTION CPU
[Execution of the servo program start (D(P).SVST instruction)]
Positioning control is executed by starting the specified servo program toward the axis
specified with D(P).SVST instruction of PLC CPU in the Motion CPU.
An overview of the starting method using the servo program is shown below.
Sequence program
<Example> DP.SVST instruction
1) The starting axis No. and servo program No. are set using the
D(P).SVST instruction in the sequence program.
2) When the D(P).SVST instruction is executed, the program of the
servo program No. is executed toward the specified axis.
(1) Create/set the sequence programs, servo programs and positioning control
(2) Perform the positioning start using the sequence program (D(P).SVST instruction)
(3) Perform the positioning control of specified servo program toward the specified
Multiple CPU control system
PLC CPU
Positioning execute command
SVST H3E3 "J3J4" K25 M0
DP
.
parameters using a programming software package.
of PLC CPU.
(a) Starting axis No. and servo program No. are specified with the D(P).SVST
instruction.
1) Servo program No. can be set either directly or indirectly.
axis.
2 - 6
D0
Device which stores the
complete status
Complete device
Servo program No.25
Starting axis No.3 and 4
Target CPU
Start request of the
servo program
Start request of the
servo program