
8
8.2 Alarms Displayed on the PMC Screen
520
8.2.3 PMC system alarm messages (For C language board)
Alarm number
Faulty location/
corrective action
Contents
PC1nn CPU INTERRT
xxxxyyyyyy
STATUS LED lL
If a C language program is
not used, or if the cause of
the error cannot be deter-
mined even by checking
the C language program,
contact FANUC.
CPU error (ABNORMAL
INTERRUPT)
nn : Exception code
Exception code of the
i80486. For details, refer
to the relevant manual
that describes the CPU.
00 Division error. For ex-
ample, the divisor in a di-
vision instruction is 0.
12 Stack exception
caused by, for example,
stack segment limit
violation
13 General protection ex-
ception generated when,
for example, a segment
limit is exceeded
xxxx : Segment selector
where the system error
occurred
A value 0103 to 02FB in-
dicates the C execution
area.
yyyyyy : Offset address
at which the system error
occurred
PC130 RAM PRTY aa
xxxxyyyyyy
STATUS LED jL
A parity error occurred in
user RAM or DRAM on
the C language board.
aa : RAM parity error oc-
currence information
xxxx : Segment selector
where the system error
occurred
yyyyyy : Offset address
at which the system error
occurred
PC160 F–BUS ERROR
xxxxyyyyyy
PC161 F–BUS ERROR
xxxxyyyyyy
PC162 F–BUS ERROR
xxxxyyyyyy
STATUS LED Lj
A bus error occurred on
the C language board.
xxxx : Segment selector
where the system error
occurred
yyyyyy : Offset address
at which the system error
occurred