... A.C active watt-hour meter, national standard and DL/T614-1997 Multi-rate watt-hour meter . The communication meet the ... demand of DL/T645-1997 Communication protocol of multi-rate watt-hour meter.Function1) Metering Function:A) Forward active energy ( ... programdata are not limited by code.Meter code:rate meter,cyclic display meter,Display mode setting,code,meter number,Consumer number,clock.Open ...