Voltage measurement The MEM 1 has 3 voltage inputs. The phase voltages are measured via terminals N, L1, L2 and L3. The fuse protection for the voltage measurement is integrated in the MEM 1 and designed in CAT IV. RS485 interface The MEM 1 is equipped with two RS485 interfaces that communicate via the Modbus RTU protocol. The connections are located on the front and are labelled "A+", "B-" and "Sch".
Voltage measurement The MEM 1 has 3 voltage inputs. The phase voltages are measured via terminals N, L1, L2 and L3. The fuse protection for the voltage measurement is integrated in the MEM 1 and designed in CAT IV. RS485 interface The MEM 1 is equipped with two RS485 interfaces that communicate via the Modbus RTU protocol. The connections are located on the front and are labelled "A+", "B-" and "Sch".
