How to web configure a CS/CJ-ETN21
Written by Nick Lim
Updated at March 31st, 2025
This tutorial is intended to explain the login and configuration of CS/CJ ETN21.
Connect with Internet Explorer
1. Connect to the default address of the card ETN21 http://192.168.250.x/0 x is the node number (in front of the card) or the IP address previously configured.
2. Enter the default password: ETHERNET
3. In the Settings menu, select System and then adjust the desired IP address.
4. Save the changes using the SET button.
Note: ETN maps using an automatic allocation method (Auto Dynamics) between FINS node number and the last fields of the IP address. This method is used by default. Therefore, an IP address 10.62.241.13 requires placing the wheel 'Node' in front of the card with the value 'D' otherwise you can ping the IP address but you can not connect to PLC with software using the OMRON FINS protocol
Login / Configuration with CX-Programmer
1. From the editor I/O table of CX-Programmer, create I/O table from the controller.
2. Open the window settings of the Ethernet card and then type the IP address of the ETN card. The automatic conversion method requires no FINS nodes (here 13). If for some reason integration is not possible to adapt IP address and no nodes, select Table, and add IP addresses in the IP table.
3. If there is a bridge or a router, enter its address in the router table.
4. Transfer the changes and restart map ETN