
8
8.2 Alarms Displayed on the PMC Screen
532
8.2.7 Error messages (for I/O)
Message
Faulty location/
corrective action
Contents
PROGRAM
NOTHING
Write a ladder program to the
flash ROM.
There is no program on flash
ROM.
ERASE ERROR Replacement is required. Flash ROM is abnormal.
WRITE ERROR
Ask FANUC Service Repre-
sentative for replacement.
READ ERROR
sentative for replacement.
F
L
A
ANOTHER
USED
Do not use the flash ROM for
other than the PMC.
Flash ROM is used by other
than PMC.
S
H
NOT EMG
STOP
Set the emergency stop
state.
The CNC is not in the emer-
gency stop state.
R
NO OPTION An option is required. No option is specified.
R
O
M
IMPOSSIBLE
WRITE
(SIZE OVER)
NO SPACE
Try the condense function.
(EDIT/CLEAR screen) If the
same phenomenon is still
observed, the flash ROM
size must be enlarged.
The sequence program is
larger than the flash ROM
size. (At write)
RAM must be enlarged. The sequence program to be
read is larger than the RAM
size. (At read)
I/O OPEN
ERROR nn
Check whether RS–232C is
used by other than PMC.
On the online setting screen,
check that “NOT USE” is in-
dicated for RS–232C.
nn=–1 : RS–232C is used by
other than PMC.
H
Check whether channel set-
ting, connection, baud rate,
and other settings are cor-
rect.
nn=6: The RS–232C option
is not found.
nn=20: RS–232C connec-
tion is incorrect.
H
O
S
T
⋅
I/O WRITE
ERROR nn
Check whether channel set-
ting, connection, baud rate,
and other settings are cor-
rect.
nn=20 : RS–232C connec-
tion is incorrect.
⋅
F
D
C
Check whether the cable is
broken.
nn=22 : Communication
cannot be performed cor-
rectly.
C
A
S
⋅
I/O READ
ERROR nn
Check whether channel set-
ting, connection, baud rate,
and other settings are cor-
rect.
nn=20 : RS–232C connec-
tion is incorrect.
O
T
H
E
Check whether the cable is
broken.
nn=22 : Communication
cannot be performed cor-
rectly.
E
R
S
ADDRESS IS
OUT OF
RANGE(xxxxxx)
Transfer data held in the
RAM area.
Data for other than the PMC
debugging RAM area was
transferred.
xxxxxx : Indicates the trans-
fer address.
DATA ERROR Check the cable and setting
(speed).
Illegal data was read.
PROGRAM
DATA ERROR
Check the alarm on the
alarm screen.
An attempt was made to out-
put data, but the data was il-
legal.