System Configuration - Omron CPU Unit CJ2 Manual

System Configuration

CJ-series CPU Racks
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A CJ-series CPU Rack consists of a CPU Unit, Power Supply Unit, Configuration Units (Basic I/O Units, Special I/O Units, and CPU
Bus Units), and an End Cover.
Power Supply Unit
CJ1W-P@@@ (@)
CPU Rack
Required Units
●
Rack
Power Supply Unit
CPU Unit
I/O Control Unit
CPU Rack
Number of Configuration Units
End Cover
Types of Units
●
In the SYSMAC CJ Series, Units are classified into the following three types. The number of Racks differs depending on the type.
Type Appearance (example)
Basic I/O Units
Special I/O
Units
CPU Bus Units
16
CPU Unit
CJ2H-CPU@@-EIP
I/O Control Unit
CJ1W-IC101
(Required only when connecting
to an Expansion Rack.)
CJ-series Basic I/O Units
CJ-series Special I/O Units
CJ-series CPU Bus Units
Unit name
1
1
Required only for mounting to an Expansion Rack.
10 max. (Same for all models of CPU Unit.)
(The number of Basic I/O Units, Special I/O Units, and CPU Bus Units can be varied. The number does
not include the I/O Control Unit.)
1 (Included with CPU Unit.)
Description
Units with contact inputs and contact outputs.
Special I/O Units provide more advanced functions
than do Basic I/O Units, including I/O other than
contact inputs and contact outputs.
Examples of Special I/O Units are Analog I/O Units
and High-speed Counter Units. They differ from
CPU Bus Units (including Network Communications
Units) in having a smaller area for exchanging data
with the CPU Unit.
CPU Bus Units exchange data with the CPU Unit
via the CPU Bus.
Examples of CPU Bus Units are Network
Communications Units and Serial Communications
Units. They differ from Special I/O Units in having a
larger area for exchanging data with the CPU Unit.
End Cover
CJ1W-TER01
(One End Cover is provided as a standard
accessory with the CPU Unit.)
Total: 10 Units max
Required number of Units
Unit recognition method
Recognized by the CPU Unit according
to the position of the Rack and slot.
Recognized by the CPU Unit according
to the unit number (0 to 95) set with the
rotary switches on the front panel.
Recognized by the CPU Unit according
to the unit number (0 to F) set with the
rotary switch on the front panel.
No. of units
No restrictions.
A maximum of 96 Units can
be connected. (Multiple unit
numbers are allocated per Unit,
depending on the model and
settings.)
A maximum of 15 Units can be
mounted. (The built-in EtherNet/
IP port on the CPU Unit must
be counted as one of the CPU
Bus Units.)