Mitsubishi Electronics A1SJ71AT23BQ ユーザーズマニュアル
8
TROUBLESHOOTING
8.1 Troubleshooting Flowchart
8
- 2
1
O
V
ER
VI
E
W
2
S
YST
EM
CONF
IGURA
T
ION
3
S
P
E
C
IF
ICA
T
IONS
4
F
UNCT
IO
NS
5
PR
EP
ARA
T
O
R
Y
PR
O
C
E
DURES
BEF
ORE
OP
E
R
A
T
ION
6
L
INK DA
TA
SEN
D/
RE
C
E
IV
E
P
R
OCE
S
S
ING
A
N
D
P
R
OCE
S
S
ING
T
IME
7
P
R
OGRA
M
MING
8
TR
O
U
BL
ESHO
O
T
IN
G
8.1
Troubleshooting Flowchart
Figure 8.1 Troubleshooting Flowchart
YES
YES
YES
YES
Refer to troubleshooting section in CPU module manual.
YES
Modify sequence program, and
reset CPU module.
reset CPU module.
Replace link module hardware.
Error occurred.
NO
YES
NO
YES
NO
YES
*1
*1
NO
YES
Has CPU module
encountered an operation
stop error?
NO
NO
NO
NO
NO
Is data link disabled
at a specific station?
Error in data
transmission?
Is communication
error detected in some
slave stations?
Is POWER LED
on power supply
module OFF?
Is RUN LED
on CPU module
OFF?
Is RUN LED
on CPU module
flashing?
Is RUN LED on
master station link
module OFF?
Is data link disabled
in the entire system?
(Data in D9204 = 5)
Check if ERROR LED on link module is ON.
*1 If the mode, station No. or communication speed of the link module is not set correctly, "SP.UNIT LAY ERR."
will occur when the CPU module status changes from STOP to RUN.