This is a list of communication protocols used for the automation of processes (industrial or otherwise), such as for building automation, power-system automation, automatic meter reading, and vehicular automation.

Process automation protocols

• AS-i – Actuator-sensor interface, a low level 2-wire bus establishing power and communications to basic digital and analog devices

• BSAP – Bristol Standard Asynchronous Protocol, developed by Bristol Babcock Inc.

• CC-Link Industrial Networks – Supported by the CLPA

• CIP (Common Industrial Protocol) – can be treated as application layer common to DeviceNet, CompoNet, ControlNet and EtherNet/IP

• ControlNet – an implementation of CIP, originally by Allen-Bradley

• DeviceNet – an implementation of CIP, originally by Allen-Bradley

• DF-1 - used by Allen-Bradley ControlLogix, CompactLogix, PLC-5, SLC-500, and MicroLogix class devices

• 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 Rockwell Automation

• Ethernet Powerlink – an open protocol managed by the Ethernet POWERLINK Standardization Group (EPSG).

• FINS, Omron's protocol for communication over several networks, including Ethernet.

• FOUNDATION fieldbus – H1 & HSE

• HART Protocol

• HostLink Protocol, Omron's protocol for communication over serial links.

• Interbus, Phoenix Contact's protocol for communication over serial links, now part of PROFINET IO

• MECHATROLINK – open protocol originally developed by Yaskawa, supported by the MMA

• MelsecNet, and MelsecNet II, /B, and /H, supported by Mitsubishi Electric.

• Modbus PEMEX

• Modbus Plus

• Modbus RTU or ASCII or TCP

• MPI – Multi Point Interface

• OSGP – The Open Smart Grid Protocol, a widely use protocol for smart grid devices built on ISO/IEC 14908.1

• OpenADR – Open Automated Demand Response; protocol to manage electricity consuming/controlling devices

• Optomux – Serial (RS-422/485) network protocol originally developed by Opto 22 in 1982. The protocol was openly documented and over time used for industrial automation applications.

• Process Image Exchange Protocol (PieP) – An Open Fieldbus Protocol

• Profibus – by PROFIBUS & PROFINET International (PI)

• PROFINET - by PROFIBUS & PROFINET International (PI)

• RAPIEnet – Real-time Automation Protocols for Industrial Ethernet

• Honeywell SDS – Smart Distributed System – Originally developed by Honeywell. Currently supported by Holjeron.

• SERCOS III, Ethernet-based version of SERCOS real-time interface standard

• SERCOS interface, Open Protocol for hard real-time control of motion and I/O

• GE SRTP – GE Fanuc PLCs

• Sinec H1 – Siemens

• SynqNet – Danaher

• TTEthernet – TTTech

Industrial control system protocols

• Data Distribution Service from the Object Management Group

• EPICS Channel Access and PV Access (PVA), particle accelerator control system framework

• MTConnect

• OPC Unified Architecture

• Open Platform Communications, formerly OLE for process control

Building automation protocols

• 1-Wire – from Dallas/Maxim

• BACnet – for Building Automation and Control networks, maintained by ASHRAE Committee SSPC 135.

• BatiBUS - merged to KNX

• C-Bus Clipsal Integrated Systems Main Proprietary Protocol

• CC-Link Industrial Networks, supported by Mitsubishi Electric

• DALI - Digital Addressable Lighting Interface specified in IEC 62386.

• DSI - Digital Serial Interface for the controlling of lighting in building, precursor to DALI.

• Dynet - lighting and automation control protocol developed in Sydney, Australia by the company Dynalite

• EnOcean – Low Power Wireless protocol for energy harvesting and very lower power devices.

• European Home Systems Protocol (EHS) - merged to KNX

• European Installation Bus (EIB) named also Instabus - merged to KNX

• INSTEON - SmartHome Labs Pro New 2-way Protocol based on Power-BUS.

• KNX – Standard for building control. Previously Batibus/EHS/EIB

• LonTalk – protocol for LonWorks technology by Echelon Corporation

• Modbus RTU or ASCII or TCP

• oBIX - Open Building Information Exchange is a standard for RESTful Web Services-based interfaces to building control systems developed by OASIS.

• UPB - 2-way Peer to Peer Protocol

• VSCP - Very Simple Control Protocol is a free protocol with main focus on building- or home-automation

• xAP – Open protocol

• X10 – Open standard for communication among electronic devices used for home automation (domotics)

• Z-Wave - Wireless RF Protocol

• Zigbee – Open protocol for Mesh Networks

Power system automation protocols

• DNP3 – Distributed Network Protocol

• IEC 60870-5

• IEC 61850

• IEC 62351 – Security for IEC 60870, 61850, DNP3 & ICCP protocols

Automatic meter reading protocols

• ANSI C12.18

• DLMS/IEC 62056

• IEC 61107

• M-Bus

• OMS

• Zigbee Smart Energy 2.0

• Modbus

• ANSI C12.21

• ANSI C12.22

Automobile / Vehicle protocol buses

• Controller Area Network (CAN) – an inexpensive low-speed serial bus for interconnecting automotive components

• FlexRay – a general purpose high-speed protocol with safety-critical features

• IDB-1394

• IEBus

• J1708 – RS-485 based SAE specification used in commercial vehicles, agriculture, and heavy equipment.

• J1939 and ISO11783 – an adaptation of CAN for agricultural and commercial vehicles

• Keyword Protocol 2000 (KWP2000) – a protocol for automotive diagnostic devices (runs either on a serial line or over CAN)

• Local Interconnect Network (LIN) – a very low cost in-vehicle sub-network

• Media Oriented Systems Transport (MOST) – a high-speed multimedia interface

• Vehicle Area Network (VAN)

• UAVCAN - a lightweight protocol for in-vehicle communication over CAN or Ethernet

See also

• Lists of network protocols

• Protocol converter

• Serial communication

• Vehicle bus

References