Hi John, how,s this going?
What Generator do you have? I have one on these DHY18KSEm i ask because of the type of controller it has mine is InteliLite so for me its via Modbus, using the ComAp CM3-Ethernet module.
Below are a few links that might be worth a read.
https://www.victronenergy.com/media/pg/CCGX/en/connecting-supported-non-victron-products.html#UUID-73fa2d0e-1d42-a05f-5dc2-c81c6273659a
https://www.victronenergy.com/live/multiplus_faq
https://www.victronenergy.com/media/pg/Automatic_Generator_start-stop/en/index-en.html