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5. SEQUENCE PROGRAMS AND SFC PROGRAMS
5.3.2
CHGA instructions
Bit Devices
X
Y
M
(D)
n
SEQUENCE PROGRAM
[Execution
condition]
Execution command
[Operation Timing]
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Usable Devices
Word (16 Bit) Devices
L
S
B
F
T
C
D
W
!
!
(1) The following processing is executed at the leading edge (OFF→ON) of the
CHGA instruction:
1) The start accept flag (M2001 to M2008/M2001 to M2004) corresponding to
the axis designated in (D) is turned ON.
2) The current value of the axis designated in (D) is changed to the current
value designated in n.
3) On completion of the current value change, the start accept flag is turned
OFF.
Execution command
CHGA instruction
Start accept flag
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Constants
R
A0 A1
Z
V
K
H
!
!
!
n
CHGA
(D)
ON
OFF
5 − 11
Pointers Level
P
I
N
!
7
Setting data
J + No. of current
J1 to J8 (A172SHCPUN)
(D)
value change axis
J1 to J4 (A171SHCPUN)
Direct
designation
Setting of current
n
value to be changed
Indirect
designation
Current value change completion
Carry
Flag Error
Flag
M9012 M9010 M9011
!
!
Setting range
mm : -2147483648 to
2147483647
×10
-1
µ m
inch : -2147483648 to
2147483647
×10
-5
inch
deg : 0 to 35999999
×10
-5
deg
PLS : -2147483648 to
2147483647 PLS
D0 to D799
W0 to W3FF
R0 to R8191
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