Led Display Status; When Data Link Is Normal; When A Cable Is Disconnected - Mitsubishi A1SJ61BT11 User Manual

13 TROUBLESHOOTING

13.4 LED Display Status

13.4.1 When data link is normal

A
J61BT11
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
E
SW
R
M/S
R PRM
TIME
O
LINE
R
L RUN
L ERR.
Power
PC CPU
supply
Terminal
resistor

13.4.2 When a cable is disconnected

A
J61BT11
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
E
SW
R
M/S
PRM
R
TIME
O
LINE
R
L RUN
L ERR.
Power
PC CPU
supply
Terminal
resistor
The LED display status of each station for each data-link (system) status is shown
below, where the transmission speed is set at 2.5 Mbps.
Refer to Troubleshooting.
The "PW", "RUN", "L RUN", "SD" and "RD" LEDs are on.
B
156K
625K
R
2.5M
A
5M
T
10M
E
................. indicates the "light-on" status.
TEST
................. indicates the "light-off" status.
T
S0
E
................. indicates the "flashing" status.
S1
S
S2
T
................. indicates one of the "light-on",
SD
RD
PW L RUN
Master
station
Remote I/O
station
Stabilized power
supply (24VDC)
Data link for all the stations is lost.
You cannot identify the location of wire breakage by the LED indications.
B
156K
625K
R
2.5M
A
5M
T
10M
E
................. indicates the "light-on" status.
................. indicates the "light-off" status.
TEST
T
S0
................. indicates the "flashing" status.
E
S1
S
S2
................. indicates one of the "light-on",
T
SD
RD
PW L RUN
Master
station
Remote I/O
station
Stabilized power
supply (24VDC)
"light-off" or "flashing" status.
PW
RUN
L RUN
SD
RD L ERR. RD
SD
L ERR.
Remote device
station
Stabilized power
supply (24VDC)
"light-off" or "flashing" status.
PW
RUN
L RUN
SD
RD
SD RD L ERR.
L ERR.
Remote device
station
Disconnected
Stabilized power
supply (24VDC)
13 - 12
MELSEC-A
A
J61BT11
RUN 156K
ERR. 625K
MST 2.5M
S MST 5M
LOCAL 10M
CPU R/W
E
SW
R
M/S TEST
R PRM S0
TIME
O S1
LINE
S2
R
SD
L RUN
L ERR. RD
Local
Power
PC CPU
supply station
A
J61BT11
RUN 156K
625K
ERR.
MST 2.5M
S MST 5M
LOCAL 10M
CPU R/W
E
SW
R TEST
M/S
R PRM
S0
TIME
S1
O
LINE
S2
R
L RUN SD
L ERR. RD
Local
Power
PC CPU
supply station
B
R
A
T
E
T
E
S
T
Terminal
resistor
B
R
A
T
E
T
E
S
T
Terminal
resistor