Filter
Top Products
13 - 17
MELSEC-QnA
13 TROUBLESHOOTING
13.4.11 When data link is started with the switch set outside the range
This is a case where data link was started with the switch set outside the range.
The "L RUN" and "SD" LEDs at the remote device station turn off and "L ERR." LED is
turn on.
A
J61QBT11
B
R
A
T
E
156K
625K
2.5M
5M
10M
TEST
S0
S1
S2
T
E
S
T
E
R
R
O
R
A
J61QBT11
B
R
A
T
E
156K
625K
2.5M
5M
10M
TEST
S0
S1
S2
SD
RD
T
E
S
T
E
R
R
O
R
PW L RUN
L ERR.
SD
RD
SD
RD
RUN
L RUN
L ERR.
PW
SD
RD
Power
supply
Programmable
controller CPU
Master
station
Stabilized power
supply (24VDC)
Terminating
resistor
Stabilized power
supply (24VDC)
Programmable
controller CPU
Local
station
Power
supply
Terminating
resistor
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
SW
M/S
PRM
TIME
LINE
L RUN
L ERR.
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
SW
M/S
PRM
TIME
LINE
L RUN
L ERR.
................. indicates the "light-on" status.
................. indicates the "light-off" status.
................. indicates the "flashing" status.
................. indicates one of the "light-on",
"light-off" or "flashing" status.
Remote I/O
station
Remote device
station
13.4.12 When the remote I/O station is not set by the parameter (i.e., is set as reserved)
No data links can be performed with the remote I/O station at all, and no error occurs.
The "L RUN", "SD" LEDs at the remote I/O station turn off.
A
J61QBT11
B
R
A
T
E
156K
625K
2.5M
5M
10M
TEST
S0
S1
S2
T
E
S
T
E
R
R
O
R
A
J61QBT11
B
R
A
T
E
156K
625K
2.5M
5M
10M
TEST
S0
S1
S2
SD
RD
T
E
S
T
E
R
R
O
R
PW L RUN
L ERR.
SD
RD
SD
RD
RUN
L RUN
L ERR.
PW
SD
RD
Power
supply
Programmable
controller CPU
Master
station
Stabilized power
supply (24VDC)
Terminating
resistor
Stabilized power
supply (24VDC)
Programmable
controller CPU
Local
station
Power
supply
Terminating
resistor
No error
occurs.
................. indicates the "light-on" status.
................. indicates the "light-off" status.
................. indicates the "flashing" status.
................. indicates one of the "light-on",
"light-off" or "flashing" status.
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
SW
M/S
PRM
TIME
LINE
L RUN
L ERR.
RUN
ERR.
MST
S MST
LOCAL
CPU R/W
SW
M/S
PRM
TIME
LINE
L RUN
L ERR.
Remote I/O
station
Remote device
station
No error
occurs.