Mitsubishi MELSEC-A Series Operating Manual page 139

6. &W TQ USE EACH FUNCTION
. u m
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,
M I
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 ( 2 1
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[
6 1 4 a 1
4
I
NO
-ENDm).
INSTRWCTIOB
&
Error message of the END instruction
check.
I
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