104
Basic System Configuration Section 2-3
Rack Configurations
Configuration Device List
2-3-4 Connectable Units
The following table shows the Units that can be connected to CPU Racks and
Expansion Racks. Refer to 2-4 I/O Units for details on the limitations on each
particular Unit.
2-3-5 Maximum Number of Units
The maximum number of I/O Units that can be connected to the CPU Rack
and Expansion Racks is 40, i.e., 10 each for the CPU Rack and up to three
Expansion Racks. (With CJ1M CPU Units, however, the maximum number of
Units is 20, i.e., 10 each for the CPU Rack and one Expansion Rack.) The
total number of each type of Unit is not limited according to connection loca-
tions.
Rack Configuration Remarks
CJ-series
Expansion Racks
CJ-series Power Supply Unit One of each Unit required for every Expansion Rack.
Refer to the following table for details on applicable models.
I/O Interface Unit (one End
Cover included.)
CJ-series Basic I/O Units A total of up to 10 Units can be connected. (An error will occur if 11 or
more Units are connected.)
CJ-series Special I/O Units
CJ-series CPU Bus Units
End Cover (CJ1W-TER01) Must be connected to the right end of the Expansion Rack. One End
Cover is provided with the I/O Interface Unit.
A fatal error will occur if the End Cover is not connected.
CS/CJ-series I/O Connecting
Cable
Required to connect the I/O Interface Unit to the I/O Control Unit or
previous I/O Interface Unit. Proper operation may not be possible if
the total length of I/O Connecting Cable between all Racks is more
than 12 m.
Name Model Specifications Cable
length
CJ-series
Power Supply
Unit
CJ1W-PA205R 100 to 240 V AC (with RUN output), Output capacity: 5 A at 5 V DC ---
CJ1W-PA202 100 to 240 V AC, Output capacity: 2.8A at 5 V DC
CJ1W-PD025 24 V DC, Output capacity: 5 A at 5 V DC
I/O Interface
Unit
CJ1W-II101 One Interface Unit is required for each CJ-series Expansion Rack. One
End Cover is provided with each Unit. (Connect to an I/O Control Unit
mounted on a CJ-series CPU Rack or an Interface Unit mounted on an
Expansion Rack using an I/O connecting cable.)
End Cover CJ1W-TER01 Must be connected to the right end of the CPU Rack. One End Cover is
provided with the CPU Unit and with an I/O Interface Unit.
A fatal error will occur if the End Cover is not connected.
CS/CJ-series
I/O Connecting
Cables
CS1W-CN313 Connects Expansion Racks to CPU Racks or other Expansion Racks. 0.3 m
CS1W-CN713 0.7 m
CS1W-CN223 2 m
CS1W-CN323 3 m
CS1W-CN523 5 m
CS1W-CN133 10 m
CS1W-CN133B2 12 m
Unit CJ-series
Basic I/O Units
CJ-series
Special I/O Units
CJ-series
CPU Bus Units
CJ-series CPU Rack Ye s Ye s Ye s
CJ-series Expansion Racks Ye s Ye s Ye s
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