I just recently connected an APC Back-UPS XS 1500 LCD, If it matters / helps i have the same UPS connected to OPNSense which is able to see and communicate with it.
When I opened the openwrt site to post in the forums I noticed that 24.10 was available, so I upgraded to it. With 23.05 and 24.10 the ups app / widget whatever will not load in the interface?
I have tried installing apcupsd-cgi and apcupsd neither one appears in the web interface. How do I get the configuration for the UPS to appear in the web interface?
My understanding that you already have another router controlling the UPS [over USB connection]. In this case your new router should talk to the first router over the network and not to the UPS directly.
I have add a "device". I have more settings then you have in the images you provided, but I have filled in the ones you have. However I still am unable to find anywhere in the interface configuration options for the UPS. IE when to shutdown, battery install, etc