IEC60870-5-104 provides for the use of network access of the standard transport protocol subset of IEC60870-5-101 protocol.
IEC60870-5-103 the standard of information interface for relay protection equipment provides the information interface specification for relay protection equipment (or measurement and control equipment).
DL/T645 is Multi-function watt-hour meter communication protocol. It standardizes the physical connection and protocol of the data exchange between the multi functional electric energy meter and the data terminal equipment.
IEC60870-5-102 power system electric energy measurement and transmission communication protocol provides the transmission protocol for electric energy metering terminal and power station of electric energy metering system of power network to transmit electric energy, remote measurement and other relevant data.
