FeldbusStandards

FeldbusStandards are standardized communication protocols and interfaces used in industrial automation to enable data exchange between sensors, actuators, controllers and other devices on factory and process plants. They define the physical connections, data formats, communication rules, and services such as diagnostics, timing, and safety. The term encompasses multiple families that have evolved from simple device-to-device links to real-time, distributed networks.

The core framework is published by international standards bodies, notably the International Electrotechnical Commission (IEC). In IEC 61158, fieldbus profiles and devices are organized into families, while IEC 61784 defines profiles for network technology and their mapping to application use. Together, these standards promote interoperability across suppliers by specifying common service interfaces and device descriptions.

Historically prominent fieldbus families include PROFIBUS and FOUNDATION Fieldbus. PROFIBUS originated in Germany for factory automation and supports decentralized I/O and control networks. FOUNDATION Fieldbus targets process industries, emphasizing instrument-level data and integrated control. In modern systems, industrial Ethernet protocols such as PROFINET, EtherNet/IP, and EtherCAT are increasingly used, often as profile-based mappings under IEC 61158/61784.

Applications span discrete manufacturing, process control, and energy and infrastructure sectors. Benefits include interoperability, scalable architectures, standardized diagnostics, and easier maintenance. Standards bodies also address safety and cybersecurity within dedicated profiles and conformity schemes.