Omron SYSMAC CS Series Operation Manual page 425

I/O Allocation Methods
Basic I/O Units on CS-series and C200H Expansion Racks
Words are allocated in order
beginning with the Expansion
Rack nearest the CPU Rack.
Example 3
The following example shows the I/O allocations to 5 Basic I/O Units in the
CPU Rack. Two slots are filled with Dummy Units to reserve I/O words for
those slots.
IN
32
CIO
0000
to
0001
Note Use the CX-Programmer's I/O table change operation to reserve words for the
empty slots.
I/O allocation to Basic I/O Units continues from the CPU Rack to the Expan-
sion Rack (CS-series Expansion Rack or C200H Expansion I/O Rack) con-
nected to the CPU Rack. Words are allocated from left to right and each Unit
is allocated as many words as it requires, just like Units in the CPU Rack.
CIO
0000
OUT Re- Re- IN
8 served served 8
16 32
CIO CIO
0002 CIO CIO 0006
0003 0004
to
0005
CS-series Expansion Rack
CS-series Expansion Rack
Section 8-2
CPU Rack
CPU Rack
387