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Distributed Network Protocol 3 (DNP3) is a set of communications protocols used between components in process automation systems. Its main use is in utilities such as electric and water companies. Its main use is in utilities such as electric and water companies.
These contain data with a time stamp and retrieved later by a Master Station. The logs are retrieved by means of DNP3 file transfer. WITS-IoT provides, as a minimum, the same base functionality as WITS-DNP3. WITS-IoT takes the WITS-DNP3 protocol definition and replaces DNP3 with JSON structures and a new communications life-cycle description.
DNP3 - a protocol used to communicate by industrial control and utility SCADA systems; DirectNet – Koyo / Automation Direct proprietary, yet documented PLC interface; EtherCAT; Ethernet Global Data (EGD) – GE Fanuc PLCs (see also SRTP) EtherNet/IP – IP stands for "Industrial Protocol". An implementation of CIP, originally created by ...
IEC 60870 part 6 in electrical engineering and power system automation, is one of the IEC 60870 set of standards which define systems used for telecontrol (supervisory control and data acquisition) in electrical engineering and power system automation applications.
IEC 60870-5-101 [IEC101] is a standard for power system monitoring, control & associated communications for telecontrol, teleprotection, and associated telecommunications for electric power systems.
Modbus or MODBUS is a client/server data communications protocol in the application layer. [1] It was originally designed for use with programmable logic controllers (PLCs), [2] but has become a de facto standard communication protocol for communication between industrial electronic devices in a wide range of buses and networks.
IEC 60870-5-4 Definition and Coding of Information Elements; IEC 60870-5-5 Basic Application Functions; IEC 60870-5-6 Guidelines for conformance testing for the IEC 60870-5 companion standards; IEC TS 60870-5-7 Security extensions to IEC 60870-5-101 and IEC 60870-5-104 protocols (applying IEC 62351) The IEC TC 57 has also generated companion ...
Most IEDs have a communication port and built-in support for standard communication protocols (DNP3, IEC104 or IEC61850), so they can communicate directly with the SCADA system or a substation programmable logic controller. Alternatively, they can be connected to a substation RTU that acts as a gateway towards the SCADA server. [2]