When there are unknowns across the majority of the powerline it might be easier to start from the other end. Turn all the circuit breakers off except that which powers the ISY/PLM and see if the devices on that circuit can be commanded without errors. Once that communication is reliable turn on another circuit breaker and communicate with the devices that are on that circuit. Once that communication is reliable turn on another circuit breaker. It might be faster to evaluate the powerline that way rather starting from everything on and unplugging appliances one at a time.
Reply To: EZ Rain2017-12-22T01:14:07-08:00