
9. CONNECTION TO FANUC I/O Link
B–63523EN/03
348
Basically, arbitrary I/O addresses can be allocated on the distribution I/O
machine operator’s panel. For connection with the fixed addresses
directly monitored by the CNC, however, DI addresses must be allocated
as indicated below.
Fixed addresses directly monitored by the CNC (with FS21i/210i)
7 6 5 4 3 2 1 0
X0004
SKIP ESKIP
SKIP6
–MIT2
SKIP5
+MIT2
SKIP4
–MIT1
SKIP3
+MIT1
SKIP2
ZAE
SKIP8
XAE
SKIP7
SKIP ESKIP
SKIP6
SKIP5 SKIP4 SKIP3 ZAE
SKIP2
YAE
SKIP8
XAE
SKIP7
X0005
X0006
X0007
X0008 *ESP
X0009 *DEC4 *DEC3 *DEC2 *DEC1
The upper row is for the T series, while the lower row is for the M series.
Example)
When 16 bytes, starting from X0006, are allocated as DI addresses
X0006 Override, etc.
X0007
X0008
General–purpose
input signals
X0009
X0010
X0012
X0013
X0014
Keyboard
(key switch input
X0015
signals)
X0016
X0017
X0018 (first MPG)
X0019 (second MPG)
MPG
X0020 (third MPG)
X0021 Not used
² Fixed signal of *DECn#2
² Fixed signal of *ESP
² Fixed signal of *DECn#1
When addresses starting
from X0006 are allocated, the
fixed signals of *DECn#1 and
DECn#2 can be used, and
the fixed signal of *ESP can
be used after allocation at an
address tied to the 24 V com-
mon signal.
However, fixed signals such
as SKIP cannot be used. Al-
locate addresses according
to this example when employ-
ing the wiring shown in Sec-
tion 9.12.5.
(No fixed signal can be allo-
cated to the key switch input
section.)