It is not possible to change the IP address of an out-of-box CP1W-CIF41 with USB/Serial PLC connection method without first connecting to the unit via the Ethernet/web browser. You must change the default IP address from 192.168. 250.1 to 0.0. 0.0 using the web browser function.

The CP1W-CIF41 is a communication interface unit manufactured by Omron, designed to enable communication between Omron CP1 series PLCs and Ethernet networks. The default IP address of the CP1W-CIF41 module depends on the specific model and version, as it can vary between different firmware revisions and configurations.

However, typically, the default IP address assigned to the CP1W-CIF41 module out of the box is in the range of 192.168.250.x. Specifically, the default IP address is often set to 192.168.250.1.

It's important to note that this default IP address may need to be changed to suit the specific requirements of your network and to avoid IP conflicts. You can configure the IP address of the CP1W-CIF41 module using the appropriate configuration software provided by Omron, such as CX-Programmer, along with the necessary PLC programming and networking tools.