B--63005EN/02
2. LCD--MOUNTED TYPE i SERIES HARDWARE
237
(1)Hardware control LEDs
LED No. Meaning
LED5 Lights when the CPU on the FANUC I/O Link--II board is run-
ning. When the LED is off, it means that the CPU has been
reset.
LED6 Lights when a DRAM parity error is detected.
It is likely that the hardware is defective.
(2)Soft control LEDs
Status LED
(ST4 to 1)
Meaning
JJJJ Immediately after power is switched on.
JJjj Communication board being initialized.
ljjj DI/DO data is being transferred normally.
jjjJ A RAM parity error has occurred.
It is likely that the hardware is defective.
jjJJ An F--BUS error has occurred.
jjJj An F--BUS system emergency condition has occurred. Alterna-
tively , a communication error (FCS error, command error , frame
length error , response time--out, etc.) has occurred.
ljJj
ljjj
A communication error has occurred, resulting in error log being
stored. Communication with a slave station has restarted.
LED2 goes off when a log command (monitor function) is used.
It goes off also when the communication error log is erased
using a clear command.
J:On j:Off l: Blinking