EMSDevicesPV Hybrid And Battery Inverters Cellpower Supported Devices Device TypeModbus TCP (Ethernet)RS485CESS 209-104✅❌CESS 233-116CESS 261-125CESS 280-125CESS 314-125 Wiring The Sofar EMS and the Cellpower CESS communicate via Ethernet. Ethernet For correct ethernet wiring: Follow the the guidelines for ethernet wiring.Last updated August 24, 2026C-BatteryPrevious PageChisageNext Page