{"id":"profinet-over-tsn","model_id":"PROFINET over TSN","name":"PI PROFINET over TSN","summary":"PROFINET over TSN is an extension of PROFINET that uses Time-Sensitive Networking as an additional Layer 2 technology on Ethernet networks. It is intended for real-time industrial communication, with TSN providing bandwidth reservation, time synchronization, low latency and redundancy. The PROFINET specification V2.4 integrates TSN, and the industrial TSN profile is being developed under IEC/IEEE 60802.","study_notes":["PROFINET over TSN uses TSN as an additional Layer 2 technology in the PROFINET architecture.","PROFINET specification V2.4 integrates TSN functionality.","The TSN profile for Industrial Automation is being developed under IEC/IEEE 60802.","TSN extends Ethernet with Quality of Service, bandwidth reservation, time synchronization, low latency and bumpless redundancy.","Configuration of communication paths moves from engineering to device or controller runtime; users define working clock master, data rate, domain name and update cycle scheduling.","TSN requires TSN-capable hardware; current Ethernet components cannot usually be extended to TSN by software.","RT and IRT mechanisms remain part of the PROFINET specification.","PROFINET with TSN addresses IRT clock-synchronous motion control applications and RT application areas.","PROFINET services include cyclic and acyclic data, alarms/diagnostics, and parameterization.","The PROFINET specification is updated as part of the IEC 61158 maintenance cycle.","First practical applications are expected when IEC/IEEE 60802 is adopted, from 2021."],"safety_notes":[],"sources":[{"url":"https://www.profibus.com/technologies/profinet-over-tsn","title":"PROFINET over TSN","accessed":"2026-10-25"}],"verification":{"status":"source_checked","checked_at":"2026-10-25","values":2,"method":"llm_source_check"},"updated_at":"2026-10-25","type":"protocol","spec":{"transports":["ethernet_l2"],"architecture":"master_slave","encoding":"binary","default_ports":[],"data_types":[],"related":["opc-ua"]},"url":"https://machineschema.com/protocol/profinet-over-tsn","license":"https://creativecommons.org/licenses/by/4.0/"}