![Mitsubishi Electric A171SHCPUN Programming Manual Download Page 110](http://html.mh-extra.com/html/mitsubishi-electric/a171shcpun/a171shcpun_programming-manual_238566110.webp)
5. SEQUENCE PROGRAMS AND SFC PROGRAMS
5
−
2
5.2
Servo Program Start Request Instruction (DSFRP/SVST)
There are two servo program start request instructions: the DSFRP instruction and
the SVST instruction.
When executing positioning control, up to 3 axes can be controlled with the DSFRP
instruction and up to 4 axes can be controlled with the SVST instruction.
5.2.1
Start request instruction for 1 to 3 axes (DSFRP)
Usable Devices
Bit Devices
Word (16 Bit) Devices
Constants
Pointers
Level
Carry
Flag
Flag Error
X
Y
M
L
S
B
F
T
C
D
W
R
A0 A1
Z
V
K
H
P
I
N
D
igi
t D
esi
gnati
on
N
u
m
b
er
of S
teps
S
ubset
Index
M9012 M9010 M9011
(D)
!
n
!
!
7
×
!
!
Setting data
Setting range
(D)
No. of axis to be
started
D1 to D8 (A172SHCPUN)
D1 to D4 (A171SHCPUN)
Direct
designation
0 to 4095
Decimal
K30000 to
K30799
SEQUENCE PROGRAM
DSFRP
Execution command
(D)
n
[Execution
condition]
n
No. of servo program
to be executed
Indirect
designation
Hexadecimal
H7530 to
H784F
The following processing is executed at the leading edge (OFF
→
ON) of the
DSFRP instruction:
•
The start accept flag (M2001+n) designated in (D) is turned ON (see Section
3.2.2).
•
A start request is issued for the servo program designated by "n".
DSFRP instruction
Start accept flag
ON
OFF
ON
OFF
Execution command
Designated servo program
Downloaded from