FX
2N
-16LNK-M MELSEC-I/O LINK REMOTE I/O SYSTEM MASTER BLOCK
Troubleshooting 5
5-5
LED status (
z
z
z
z
: Lit,
{
{
{
{
: Extinguished)
System status
Master block
Remote I/O unit
A
B
C
D
OPEN LED is
lit.
Wiring may be disconnected, a remote
I/O unit may be defective, or power may
be turned off.
PW LEDs on remote I/O units are lit, so
wiring is disconnected in position
c
.
Wiring may be disconnected, a remote
I/O unit may be defective, or power may
be turned off.
PW LED on remote I/O unit B is extin-
guished, so power is tur ned off or
remote I/O unit B is defective.
PARITY LED
is lit.
Remote I/O unit C is defective.
ERR LED on remote I/O unit C is lit, so
this unit cannot receive correctly data
from master block. (It may be caused
by noises.)
POWER
24
RUN
ERR
ERROR STATION
8
0
1
9
SD
2
A
RD
3
B
4
C
SHORT
OPEN
PARITY
5
D
6
E
7
F
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
Master
A
B
C
D
POWER
24
RUN
ERR
ERROR STATION
8
0
1
9
SD
2
A
RD
3
B
4
C
SHORT
OPEN
PARITY
5
D
6
E
7
F
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
POWER
24
RUN
ERR
ERROR STATION
8
0
1
9
SD
2
A
RD
3
B
4
C
SHORT
OPEN
PARITY
5
D
6
E
7
F
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
PW
RUN
SD
RD
ERR
Summary of Contents for FX2N-16LNK-M
Page 1: ...USER S MANUAL FX2N 16LNK M MELSEC I O LINK REMOTE I O SYSTEM MASTER BLOCK ...
Page 8: ...FX2N 16LNK M MELSEC I O LINK REMOTE I O SYSTEM MASTER BLOCK Contents vi MEMO ...
Page 50: ...FX2N 16LNK M MELSEC I O LINK REMOTE I O SYSTEM MASTER BLOCK Troubleshooting 5 5 6 Memo ...
Page 58: ...FX2N 16LNK M MELSEC I O LINK REMOTE I O SYSTEM MASTER BLOCK Appendix A 6 Memo ...
Page 59: ...FX2N 16LNK M MELSEC I O LINK REMOTE I O SYSTEM MASTER BLOCK ...