
B-63354EN/04 VI. MAINTENANCE 1.Series 16i
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i/18i
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i/21i
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i-A/PMi
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i MAINTENENCE INFORMATION
- -349
STATUS LED indications if an error occurs (LEDs L1 through L4)
If an error occurs, the LEDs repeatedly flash "LONG" then "SHORT."
(For "LONG," the LED lights for a long time. For "SHORT," the LED
lights for a short time.)
STATUS LED
indication
No.
LONG
1234
SHORT
1234
Ethernet/data server board state
1
¡l
¡¡
l¡
¡¡
System reset
2
¡l
¡¡
¡¡
l¡
Machine check
3
¡l
¡¡
l¡
l¡
Failure caused by
this board
DRAM parity alarm
4
¡l
¡¡
¡¡
¡l
Failure caused by
another board
NMI of another module
NOTE
If an error, indicated by repeatedly flashing a
LONG and SHORT combination other than the
above, occurs, contact FANUC.
ALARM LED indications if an error occurs
No.
LED indication
123
Data server board state
1 n¨n MPU data transfer error occurred.
2 ¨nn Parity error occurred in main memory.
NOTE
LED indications other than those listed above
indicate an error that has occurred on the RISC
option board.
LED indications related to communication status
Communication status (LEDs L5 through L8)
No. LED indication Communication status
1 àà
là
Lights when data is sent.
2 àà
àl
Lights when data is received.
3 àl
àà
Lights when the data server board is successfully
connected to the hub.
Communication status (COL LED)
No. LED indication Communication status
1 l Lights if a data collision occurs.