CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 55

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2-2-2
Unit Number Setting
Switch
Nomenclature and Functions
Switch Settings
Note
Right and Left Dot LEDs
If an error occurred in two or more devices with the same rightmost byte in
their IP addresses, the Right Dot LED will be lit while the devices’ error is
being displayed.
Example: Displaying the Following Errors
The Unit Number Setting Switch sets the unit number of the EtherNet/IP Unit
or built-in EtherNet/IP port as a CPU Bus Unit. The unit number determines
which data area words are allocated to the Unit to contain data such as con-
trol bits, flags, status information, and connection information.
Note The unit number is factory-set to 0.
The unit number can be set to any number in the setting range (0 to F), as
long as the same number is not set on another CPU Bus Unit in the same
PLC.
One-digit hexadecimal
(1) Use a small screwdriver to make the setting, and be sure not to damage
(2) Always turn OFF the PLC’s power supply before setting the unit number.
(3) The unit number is factory-set to 0.
(4) If the same unit number is set on more than one CPU Bus Unit mounted
• A d6 error (failed to establish connection) occurred with IP address
• A d6 error (failed to establish connection) occurred with IP address
10.0.1.8.
10.0.2.8.
Setting method
the rotary switch.
in a PLC, a unit number duplication error will occur in the PLC and the
EtherNet/IP Unit or built-in EtherNet/IP port will not be able to start oper-
ating.
0 to F
Setting range
Section 2-2
27