
B–63503EN/02
9. CONNECTION TO FANUC I/O Link
166
X0018
X0019 (DO alarm
detection)
X0004
X0005
X0006
X0007
X0008
X0009
X0010
X0011
X0012
X0013
X0014
X0015
X0016
X0017
When DI addresses are allocated in units of
16 bytes, starting at X0004
Input signal
Not used
DO alarm
detection
Reserved
NOTE
Reserved addresses can not used.
All the DO signals can be turned off simultaneously by turning off
(opening) the DO (output signal) power supply pin “DOCOM”. Doing
so causes the DO signal status to change as shown below.
DOCOM
ON
OFF
ON
OFF
ON
OFF
When DO is ON in
the sequence
When DO is OFF
in the sequence
NOTE
When the DO signal is in the ON state in the sequence, the
ON or OFF state of the DOCOM pin determines the state of
the signal, as shown within dotted lines in the above figure.
Do not turn off the +24 V supply provided by the CPD1 to the
I/O module during the operation. Turning off the +24 V
supply causes a CNC communication alarm. When turning
on the power, the +24 V supply to the I/O module must be
turned on before or at the same time as the power supply
to the CNC. When turning off the power, the +24 V supply
to the I/O module must be turned off after or at the same time
as the power supply to the CNC.
Turning the DO (output
signal) power on and off
(DOCOM)