To read the IP address of the Omron CP1W-CIF41 communication interface module from the PLC (Programmable Logic Controller), you can use ladder logic programming in the CX-Programmer software provided by Omron.

The default address of the CP1W-CIF41 Module is 192.168.250.1, but sometimes you have to repair an existing PLC module with the changed address, you cannot log into the Enthernet Module to configure and connect connect to another device :

Step 1 – Use the USB cable to read the PLC program
Step 2 – Enter Memory to find the registers with each of the following PLCs
– OMRON PLC CP1E: (Only Port.2)
+ IP Address: D1303 & D1304
+ Subnet: D1305 & D1306
– OMRON PLC CP1H/1L:

Port.1:
+ IP Address: D32003 & D32004 (CPU30/40/60) / D32303 & D32304 (CPU14/20)
+ Subnet: D32005 & D32006 (CPU30/40/60) / D32305 & D32306 (CPU14/20)

Port.2:
+ IP Address: D32303 & D32304
+ Subnet: D32305 & D32306

Note: After reading the value you have to change from HEX to DEC to read the IP address and Subnet