They require deterministic network delays with low-jitter input and output sampling, to create a control system that behaves predictably. Such actions (for example controlling a networked industrial machine or a conveyor belt) are highly time-sensitive. Control networks need to accept inputs from sensors, perform control loop processing, and initiate actions in response. These systems require coordinated measurements and actions using a control network. This is fully supported in all NI TSN products (all TSN products from NI support time synchronization). In these use cases the customers may only be using the time synchronization and not the deterministic communication capabilities. Similarly, in a distributed monitoring application such as monitoring flows or torsional vibration it may be necessary to have synchronization of the measurements, so machine health analytics can properly consume the data. Applications such as structural test need to correlate the data from every strain gauge to get an accurate representation of the structure. To support analysis routines the data from each of the sensors needs to be correlated in time. Many measurement applications require sensor readings from multiple locations. A few more industries and applications include: Test Cells and Distributed Monitoring Customers are using TSN for simple distributed synchronized measurements, embedded coordinated distributed data logging, advancements in next-generation computer numeric control machining, novel semiconductor processing machines, and future electrical grid research. As such, any application requiring distributed measurements or control can benefit from TSN. TSN provides distributed time synchronization and deterministic communication using standard Ethernet networks. Key Features of Time Sensitive Networking Technology. Protocols such as OPC UA may be implemented on top of TSN.įigure 1. TSN is not a protocol it is part of the Ethernet standard. As part of the Ethernet standard, TSN also benefits from continuing improvements in Ethernet security, bandwidth, and other capabilities and provides numerous advantages over today’s standard and specialty Ethernet protocols. By converging time-critical and best-effort data within standard Ethernet, TSN delivers cost savings and improved interoperability. This includes standard time synchronization and deterministic network communication over standard Ethernet, allowing operations networks to leverage the advantages of traditional Ethernet while meeting the timing and control needs of control and measurement applications. TSN will provide new features to standard Ethernet. NI, Intel, Cisco, and others are collaborating in organizations such as IEEE, the Avnu Alliance, and the Industrial Internet Consortium (IIC) to define, standardize, and drive adoption of this new technology. Time Sensitive Networking (TSN) is an update to the IEEE Ethernet standard intended to address the needs of control systems with standard Ethernet technology.
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