7. APPLICATION INSTRUCTIONS
7
−
131
MELSEC-A
7.10.3 Status latch set, reset
(SLT, SLTR)
Available Device
Bit device
Word (16-bit) device
Constant
Pointer Level
Ca
rr
y
fla
g
Err
o
r
fla
g
X Y M L S B F T C D W R A0
A1 Z V K H P I N
D
igit specification
Inde
x
M9012 (M9010, M9011)
Functions SLT
(1) When executed, the SLT instruction stores the contents of data memories and
file registers set by the parameter setting of peripheral unit A6GPP, A6PHP,
A6HGP into the memory for status latch in the user memory area.
(2) Stausu latch is allowed for the following devices.
Data memory: ON/OFF displays of X, Y, M, B, and F
Present valuses of T and C
Contents of D, W, A0, A1, Z and V
Contents of file registers
(3) When the SLT instruction is executed only once.
(4) The result of status latch can be monitored by the A6GPP, A6PHP, A6HGP.
SLTR
(1) A reset instruction of SLT instruction.
(2) By executing the SLTR instruction, the SLT instruction is enabled again.
AnS
AnN
AnSH
An A1FX
A3H
A3M
A3V AnA
AnU, A2AS
A2USH-S1
A2USH board
QCPU-A
(A Mode)
A0J2H
A2C
A52G
A73
A3N
board
Applicable
CPU
O O O O
O
O O O O
Remark
*1: Unusable with A1N.
*2: Unusable with A1.
SLT
SLTR
Execution of
status latch
Reset of status
latch
Status latch command
Reset command
*1
*2
Содержание MELSEC-A series
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