Mitsubishi MELSEC-QnA Series User Manual page 12

No. Name
1) LED
A1SJ72QLP25
A1SJ72QLR25
RUN PW
HOLD
DUAL RMT.E.
D.LINK SW.E.
T.PASS ST.E.
WAIT PRM.E.
F.E. R.E.
A1SJ72QBR15
RUN PW
HOLD
RMT.E.
D.LINK SW.E.
T.PASS ST.E.
WAIT PRM.E
Name Status
RUN ON
OFF
DUAL
CRC
E
OVER D.LINK
R
AB.IF
R
TIME
O
DATA
R
UNDER
T.PASS
SD
RD
WAIT
F.E.
CRC
E
OVER
R
AB.IF
R
TIME
O
DATA
R
UNDER
PW
SD
RD
HOLD
ON
RMT.E.
SW.E.
ST.E.
PRM.E.
R.E.
CRC
OVER
Contents
Contents
Normally operating.
WDT error occurred (hardware
failure)
Multiplex transfer in execution
(OFF: Multiplex transfer not
executed)
Data link being performed (OFF:
Data link stopped)
Participating in token passing
(Transient transmission is
available.)
When waiting for communication
with special-function module.
Forward loop (F.LOOP) is faulty.
<Cause> Power-off of adjacent
station, cable disconnection, no
connection, etc.
Power being supplied (OFF: No
power being supplied)
Output status is held when
communication is abnormal.
Standard network
...Q4ARCPU output
hold/reset setting switch
is set to "Hold".
Duplex network
...A6RAF is set to "Hold" at
"HOLD/RESET MODE"
section.
When a blown fuse or I/O check
error occurs. (Host station)
Incorrect setting of switches 3) and
4)
Station number or remote master
station status is duplicated on the
same network.
When I/O allocation is abnormal.
When the number of LB/LW
points is insufficient.
(special-function module)
When the parameters received
from the remote master station
are abnormal.
Reverse loop (R.LOOP) is faulty.
<Cause> Power-off of adjacent
station, cable disconnection, no
connection, etc.
Error detected in code check of receive data
<Cause> Timing at which station sending data to
target station is disconnected from network,
hardware failure, cable fault, noise, etc.
Error occurred when receive data processing is
delayed
<Cause> Hardware failure, cable fault, noise, etc.
6
The position
of switch for
the display
switch over of
5) is valid
when it is on
the left side.
The position
of switch for
the display
switch over of
5) is valid
when it is on
the right side.