Omron CJ2 CPU UNIT - Maximum Number of Expansion Racks

2-11
2 Basic System Configuration and Devices
CJ2 CPU Unit Hardware User’s Manual
2-1 Basic System Configuration
2
2-1-3 Expansion Racks
CJ-series Expansion Racks can be connected to the CPU Rack to expand the number of Units in the
System beyond the CPU Rack. Up to 10 I/O Units can be mounted to each Expansion Rack and a total
of 3 Expansion Racks can be connected.
Mount an I/O Control Unit immediately to the right of the CPU Unit, and mount the I/O Interface Unit
immediately to the right of the Power Supply Unit on the Expansion Rack. Mounting them in other loca-
tions may cause malfunctions.
2-1-3 Expansion Racks
Maximum Number of Expansion Racks
Expansion pattern Maximum number of Racks Remarks
CJ-series CPU Rack plus
CJ-series Expansion Racks
3 Racks The total length of I/O Connecting Cable
between the CPU Rack and an Expansion Rack,
and between all Expansion Racks, must be no
more than 12 m.
CPU Rack
CS/CJ-series I/O Connecting Cables
Cable
CS1W-CN313
CS1W-CN713
CS1W-CN223
CS1W-CN323
CS1W-CN523
CS1W-CN133
CS1W-CN133B2
Length
0.3 m
0.7 m
2 m
3 m
5 m
10 m
12 m
CJ-series
Expansion Rack
CS/CJ-series I/O Connecting Cable
30 cm, 70 cm, 2 m, 3 m, 5 m, 10 m, 12 m
Expansion
Racks:
3 maximum
Total cable
length:
12 m
End Cover
I/O Control Unit
I/O Interface Unit
I/O Interface Unit
10 Units max.
Power
Supply
Unit
Power
Supply
Unit
Power
Supply
Unit
CJ-series
Expansion Rack
CS/CJ-series I/O Connecting Cable
30 cm, 70 cm, 2 m, 3 m, 5 m, 10 m, 12 m
CPU
Unit
10 Units max.