Installing The Ethercat Slave Unit; System Configuration Precautions; Mounting To A Cj-Series Plc - Omron CJ1W- ECT21 Operation Manual

2 Nomenclature and Installation
2-2

Installing the EtherCAT Slave Unit

This section describes how to mount the EtherCAT Slave Unit to a CJ-series PLC system.
2-2-1

System Configuration Precautions

Up to 16 EtherCAT Slave Units can be mounted to the CJ-series PLC system when Expansion Racks
are present.
If EtherCAT Slave Units are mounted in combination with other CPU Bus Units (e.g., Controller Link
Units), the maximum total number of CPU Bus Units that can be mounted is 16.
Precautions for Correct Use
Be sure that the total current consumption of all the Units connected to the same CPU Rack or
Expansion Rack does not exceed the output capacity of the Power Supply Unit.
2-2-2

Mounting to a CJ-series PLC

EtherCAT Slave Units can be mounted in a CJ-series CPU Rack or a CJ-series Expansion Rack. Con-
nect the EtherCAT Slave Unit in any of the positions shown below using the sliders on the top and bot-
tom of the Unit.
CPU Rack
Expansion Rack
Expansion Rack
Expansion Rack
2 - 8
*1
10 Units max.
P C I
S P C
U
*1
10 Units max.
P I
S I
10 Units max. *1
P I
S I
10 Units max. *1
P I
S I
PS: Power Supply Unit
CPU: CPU Unit
IC: I/O Control Unit
II: I/O Interface Unit
End Cover
End Cover
Up to 16 EtherCAT Slave
Units can be mounted.
End Cover
End Cover
CJ-series EtherCAT Slave Units Operation Manual (W541)
*1