FX
2N
-16LNK-M MELSEC-I/O LINK REMOTE I/O SYSTEM MASTER BLOCK
Operation 4
4-4
LED indication and terminal block
Name
Status
Description
LED
24 V
Lit
Supply voltage of power (24V DC) supplied from out-
side is normal.
Extin-
guished
Supply voltage of power (24V DC) supplied from out-
side is insufficient.
RUN (*1)
Lit
SHORT, OPEN and PARITY errors have not occurred
at all in any on-line station.
Extin-
guished
SHORT, OPEN or PARITY error has occurred consec-
utively in six scans or more.
SD
Lit
Data is being sent.
RD (*2)
Lit
Data is being received.
ERR.
SHORT
Lit
DATA and DG are short-circuited.
OPEN
Lit
When all data is adjacent inversion data (00) even in
one on-line remote station, it is regarded as discon-
nection of transmission path, defect in remote I/O sta-
tion or OFF of 24V DC power, and OPEN LED is lit.
PARITY
Lit
When data is adjacent inversion data or parity check
error data even in one on-line remote station, it is
regarded as an error and PARITY LED is lit.
When an open error has occurred, it is not regarded
as a parity error.
ERROR
STATION
0 to F
Lit
When an open or parity error has occurred six times
consecutively (X data is cleared at the same time.) or
a status error has occurred in an online remote sta-
tion, corresponding LED is lit (A fuse blowout error is
issued at the same time.).
When error status is cleared, LED is distinguished.
24V
RUN
SD
RD
SHORT
OPEN
PARITY
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ERR
ERROR STATION
POWER
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 ...