
13. INPUT/OUTPUT OF DATA
B–63523EN–1/03
1720
NOTE
When 0 is set, the input/output of parameters, macro
variables, and diagnostic data cannot be performed, but
program input/output processing is performed.
Number Message Description
085 COMMUNICATION
ERROR
When entering data in the memory by using
Reader / Puncher interface, or FANUC I/O Link
an overrun, parity or framing error was gener-
ated. The number of bits of input data or setting
of baud rate or specification No. of I/O unit is in-
correct.
086 DR SIGNAL OFF When entering data in the memory by using
Reader / Puncher interface, the ready signal
(DR) of reader / puncher was off.
Power supply of I/O unit is off or cable is not
connected or a P.C.B. is defective.
Or, the slave is not ready to perform data in-
put/output (or the slave is performing back-
ground editing) if this alarm is issued when
data input/output using the FANUC I/O Link is
started. Alternatively, slave–side input/output
is stopped (with alarm output) if this alarm is
issued during input/output.
087 BUFFER OVER-
FLOW
When entering data in the memory by using
Reader / Puncher interface, though the read
terminate command is specified, input is not in-
terrupted after 10 characters read. I/O unit or
P.C.B. is defective.
Alternatively, for data read using the FANUC
I/O Link, the master directs the termination of
a read operation, but the slave does not stop
output.
Alarm and message