Electricity

IEC Standards

IEC 60870-5-104 supports communication between the control station and the substation through a standard TCP/IP network. The TCP protocol is used for connection secure data transmission. The standard interoperability list ensures the interoperability between devices from different vendors.

• IEC 60870-5-101: Serial
• IEC 60870-5-104: Ethernet
• IEC 61850: Ethernet

DNP3

DNP3 (Distributed Network Protocol) was developed to create a protocol for standardization by vendors of power grid SCADA. DNP3 is commonly used in North American electric and water utilities for communication between SCADA masters and substations such as remote terminal units (RTUs).

Chinese Standard

DL/T645 multi-functional energy meter communication protocol is a Chinese standard to unify and standardize the physical connection and protocol when multi-functional energy meter and data terminal devices exchange data, there are two versions, DL/T645-97 and DL/T645-07 respectively.