
B-63354EN/04 VI. MAINTENANCE 2.Series 15i
ii
i-A MAINTENANCE INFORMATION
- -361
STATUS LED indications if an error occurs (LED0 through LED 3)
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
3 1
2 0
SHORT
3 1
2 0
Data server board state
1
n¨
¨¨
¨¨
¨n
System reset
2
n¨
¨¨
¨n
¨¨
Machine check
3
n¨
n¨
¨¨
¨n
Failure caused by
this board
DRAM parity alarm
4
n¨
n¨
¨n
¨¨
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 Data server board state
1 PARITY n Parity error occurred in main memory.
LED indication related to communication status
No. LED indication Communication status
1 TPPIL n Lights when the data server board is successfully
connected to the hub.
2COL n Lights if a data collision occurs.
3RX n Lights when data is received.
4TX n Lights when data is sent.
NOTE
TPPIL:
Communication is not performed while this LED is
off. A probable reason for this is that the data
server board is not properly connected to the hub,
or that the hub is off. This LED should be lit at all
times while the Ethernet board is properly
connected to the hub.
COL:
This LED lights frequently if there is excessive
traffic on the communication line or if there is
excessive peripheral electrical noise.