6
No.
Name
Contents
RUN
Module at the normal time: lamp is lit When a WDT error
is generated: lamp is not lit
PC
When setting a PC network: the lamp is lit (SW1 is off)
REMOTE When setting a remote I/O: lamp is lit (turns on the SW1)
DUAL
During execution of multiplex transmission: lamp is lit
SW.E
When there is an abnormality with a switch between 2 and
6: lamp is lit
M/S.E
On the same network, at the time of station or control
station duplication: lamp is lit
PRM.E
When there is a conformity error with a common
parameter and station existent parameter and when the
parameter received from a sub-management station and
the
local
station
parameter
received
from
the
management station are different: lamp is lit
POWER
When the power supply is supplied: lamp is lit
MNG
Control station, master station setting time: lamp is lit
Normal station setting time: lamp is not lit
S.MNG
When it is sub-management station: lamp is lit
D.LINK
During data link: lamp is lit
T.PASS
At the time of baton pass (transient transmission): lamp is
lit
EX.
POWER
When the external power supply (24VDC) is being
supplied to A: lamp is lit
CPU R/W During CPU communication exchange: lamp is lit
CRC
When there is a code check error of receiving data: lamp
is lit
<Primary cause> The timing of a station in parallel
condition sending data to corresponding station, H/W
abnormality, cable abnormality, noise, etc.
OVER
When there is an error due to delayed processing of
receiving data: the lamp is lit
<Primary cause> H/W abnormality, cable abnormality,
noise, etc.
AB.IF
Errors when successively receiving communication which
is "1" above the regulations and or when the length of the
receiving data is short: lamp is lit
<Primary causes> The timing of a station in parallel
condition sending data to the corresponding station,
monitoring time is short, cable is abnormal, noise, etc.
TIME
An error at the time that the data link timer is working:
lamp is lit
<Primary
causes>
Monitoring
time
is
short,
cable
abnormality, noise, etc.
DATA
Error when receiving abnormal data which is 2K bytes or
over: lamp is lit.
<Primary causes> Cable abnormality, noise, etc.
UNDER
An error when the internal processing of the sending
transmission data is not in constant intervals: lamp is lit
<Primary causes> H/W abnormality
LOOP
If there is an error when the Forward (F. Loop)/Reverse
(R.LOOP) loop is abnormal: lamp is lit
<Primary cause> The power supply of the adjacent station
is off, the cable is cut or not connected, etc.
SD
During data sending: lamp is lit
1)
LED
A
J71QLP21S
RUN -
PC -
REMOTE -
DUAL -
SW.E -
M/S.E -
PRM.E -
CRC -
OVER -
AB.IF -
TIME -
DATA -
UNDER -
LOOP -
SD -
RD -
- POWER
- MNG
- S.MNG
- D.LINK
- T.PASS
- EX.POWER
- CPUR/W
- CRC
- OVER
- AB.IF
- TIME
- DATA
- UNDER
- LOOP
- SD
- RD
F. LOOP
R. LOOP
10
1
100
E
R
R
O
R
E
R
R
O
R
A
J71QLP21
RUN -
PC -
REMOTE -
DUAL -
SW.E -
M/S.E -
PRM.E -
CRC -
OVER -
AB.IF -
TIME -
DATA -
UNDER -
LOOP -
SD -
RD -
- POWER
- MNG
- S.MNG
- D.LINK
- T.PASS
-
- CPUR/W
- CRC
- OVER
- AB.IF
- TIME
- DATA
- UNDER
- LOOP
- SD
- RD
F. LOOP
R. LOOP
10
1
100
E
R
R
O
R
E
R
R
O
R
A
J71QBR11
RUN -
PC -
REMOTE -
SW.E -
M/S.E -
PRM.E -
CRC -
OVER -
AB.IF -
TIME -
DATA -
UNDER -
SD -
RD -
- POWER
- MNG
- S.MNG
- D.LINK
- T.PASS
-
- CPUR/W
10
1
100
E
R
R
O
R
A
J71QBR11
RUN
PC
REMOTE
DUAL
SW.E
M/S.E
PRM.E
CRC
OVER
AB.IF
TIME
DATA
UNDER
LOOP
SD
RD
POWER
MNG
S.MNG
D.LINK
T.PASS
CPUR/W
CRC
OVER
AB.IF
TIME
DATA
UNDER
LOOP
SD
RD
10
1
100
E
R
R
O
R
F.LOOP
R.LOOP
E
R
R
O
R
RD
During data receiving: lamp is lit
