Omron CJ2 CPU UNIT SOFTWARE User Manual

8-7
8 I/O Allocations and Unit Settings
CJ2 CPU Unit Software User’s Manual
8-1 I/O Allocations
8
8-1-2 Automatic Allocation
Basic I/O Units in Expansion Racks
I/O allocation to Basic I/O Units continues from the CPU Rack to the Expansion Rack connected
directly 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.
z I/O Allocation to Special I/O Units
Each CJ-series Special I/O Unit is allocated ten words in the Special I/O Unit Area (CIO 2000 to
CIO 2959) according the unit number set on the Unit. Special I/O Units can be mounted to the CPU
Rack or Expansion Racks. The following table shows which words in the Special I/O Unit Area are
allocated to each Unit.
Special I/O Units are ignored during I/O allocation to Basic I/O Units. Positions containing Special
I/O Units are not allocated any words in the I/O Area.
Unit number Number of words Words allocated
0 10 CIO 2000 to CIO 2009
1 10 CIO 2010 to CIO 2019
2 10 CIO 2020 to CIO 2029
:: :
15 10 CIO 2150 to CIO 2159
:
:
:
:
:
:
95 10 CIO 2950 to CIO 2959
Expansion Rack
IN
16 pt
0010
IN
16 pt
0000
OUT
16 pt
0007
IN
32
pt
0011
0012
IN
32 pt
0001
0002
IN
64 pt
0003
0006
OUT
32 pt
0008
0009
OUT
8
pt
0013
123
12345
Expansion Rack
IN
16
pt
0014
IN
32
pt
0015
0016
OUT
16
pt
0017
123
Example
CPU Rack
From the left →
Power Supply Unit
CPU Unit
Power Supply Unit
From the left →
From the left →
Power Supply Unit
to

Omron CJ2 CPU UNIT SOFTWARE Specifications

General

Brand	Omron
Model	CJ2 CPU UNIT SOFTWARE
Category	Software
Language	English