3.6.3 l/O Module Addressing
The proper addressing of the l/O modules is accomplished automatically
by the controller. The closer to the controller, the lower the l/O module’s
address. This allows for the installation of additional l/O modules without
disturbing the
3-10.
ADDRESSES
ADDRESSES
ADDRESSES
ADDRESSES
existing l/O module/addressing
sequence. Refer to Figure
‘ROCESSOR NPUT IlJTPlJ’
1001 0001
I&
O&
PROCESSOR INPUT INPUT
0
1UTPUT OUTPUT
c
PROCESSOR
PROCESSOR
INPUT OUTPUT INPUT OUTPUT
IO09
OF
0009
TO
TO
1016 0008 0016
INPUT INPUT
_I-
1001
1009
TO
TO
XJTPUT INPUT OUTPUT
-n-I _
1008 1016
O’ooo8 I&
0::
REGISTER REGISTER
:I001 0001 3001 4010
TO
TO AND
AND
1008 0008 3002 4012
Figure 3-10. I/O Addressing
3-8
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