6.
&W
TQ
USE EACH FUNCTION
.um
6.9.3
Checking a program
This operation executes the following checks of sequence programs written
to
an
ACPU.
1)
Dual coil check
.......,..........
This checks whether the device
(Y,
MI
L,
B,
F, T,
C)
used in a sequence instruction
(OUT, SET, SFT,
PLS,
MC,
PLF)
is a dual
coil.
2)
Instruction code check
......
This checks whether
or
not there is an
error in the instruction codes (memory con-
tents) of a sequence program. (The ar-
rangement
of
instructions is not checked.)
3)
END Instruction check
......
This checks whether
or
not there is an
END instruction
in
the sequence program.
[Bask operation]
SHIFT OTHERS
GO
[Sample operation]
If
there are a dual coil, an instruction code error,
or
an END instruction missing
error
0
(SHIFTHOTHERS
1
Q(21
Select the OTHERS mode.
a
PLC
CBBCK
3
PLC SYSTEM
Select
"2:PLC CHECK".
2
PILOORAY
CEECK
Select '2:PROGRAM CHECK".
An error step
is
displayed.
The device
of
a dual coil
is
displayed.
The error message
of
a dual coil
check
is
displayed.
STEP[
14131
The next error step is displayed.
The error message
of
an instruction
code check is displayed.
The error step is displayed.
0
STBP[
614a1
4
I
NO
-ENDm).
INSTRWCTIOB
&
Error message of the END instruction
check.
I
6-72
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