Setting Up The Plc - Omron CJ Series Connection Manual

7.3. Setting Up the PLC

Set up the PLC.
7.3.1. Hardware Setting
Set the hardware switches on the Ethernet Unit.
Precautions for Correct Use
Make sure that the power supply is OFF when you perform the setting up.
1
Make sure that the power supply
to the PLC is OFF when you
perform the settings.
*If the power supply is turned
ON, settings may not be
applicable in the following
procedure.
Refer to the right figure and
check the hardware switches
located on the front panel of the
Ethernet Unit.
2
Set the Unit No. Switch to 0.
3
Set the node address switches to
the following default settings:
NODE No.x161: 0
NODE No.x160: 1
*Set the IP address to
192.168.250.1.
*By default, the first to third
octets of the local IP address
are fixed to 192.168.250. The
fourth octet is the value that is
set with the node address
switches.
4 Connect the Ethernet Unit and
the End Cover to the PLC.
Connect the personal computer,
Robot Controller and PLC using
the LAN cable and USB cable as
shown in 5.2 Device Configura
tion.
Turn ON the power supply to the
PLC.
Setting the Unit Number
The unit number is used to identify individual CPU Bus Units when more than
one CPU Bus Unit is mounted to the same PLC. Use a small screwdriver to
make the setting, taking care not to damage the rotary switch. The unit
number is factory-set to 0.
Setting the Node Address
With the FINS communications service, when there are multiple Ethernet
Units connected to the Ethernet network, the Ethernet Units are identified by
node addresses. Use the node address switches to set the node address
between 01 and FE hexadecimal (1 to 254 decimal). Do not set a number
that has already been set for another node on the same network.
•Unit Version 1.5 or Later
The node address is factory-set to 01.
CJ2M-CPU12
Power Unit
USB Cable
7．Connection Procedure
CJ1W-ETN21
End Cover
LAN Cable
16