... Energy Systems 3.Voltage, Current, Energy and Power 4.RS485, Modbus INTRODUCTIONAcuDC 200 series DC power meter can be used for ... data in the meter is accessible via RS485 using open Modbus RTU protocol.APPLICATIONS• Solar and Wind Energy Systems• Large UPS ... data in the meter is accessible via RS485 using open Modbus RTU protocol.•