I have a Deye SUN-5K-SG01LP1 and a few Pylontech US3000C batteries, I have connected them using CAN and set up the inverter battery mode to Lithium, and Lithium mode to 00. However I see no comms between the intverter and batteries. The "Li-BMS" portion in the "Batt" window show all default values. Do I need a special cable - if needed I can make one.