How TSN can increase productivity in manufacturing
28 October 2020
John Browett looks at how different industry verticals can reap maximum advantages by leveraging TSN for industrial communications
Described by industry leaders as the future of industrial communications, Time-Sensitive Networking (TSN) is poised to bring data sharing to the next-level, enabling Industry 4.0 applications. While the adoption of TSN is still in its early stages, with future-oriented businesses picking up the pace, this technology holds enormous potential for numerous manufacturing sectors.
1. Simplified machine design and higher performance for the converting sector
One of the key features of TSN that can bring great benefits to manufacturers is its ability to synchronise all network devices with high accuracy, especially when used with gigabit bandwidth. As a result, it is possible to ensure deterministic communications for time-critical high-speed applications, such as motion control.
For example, when this feature is adopted in networks used in the converting industry, plants can achieve accurate synchronisation between multiple axes on a machine. By being able to control the motion of many different axes simultaneously over one network, facilities can optimise product quality and production processes as well as increasing the flexibility of their architectures and machines, while simplifying the mechanical set up. The end result is reduced time for retooling and maximised product yield.
2. Transparency and traceability for food & beverage
Accurate and precise time synchronisation, as offered by TSN technology, is also extremely important when transparency and traceability are crucial.
The success of sensitive industries, such as food & beverage, relies heavily upon key process data, which need to be monitored to ensure product quality and compliance with relevant regulations or good manufacturing practices. These data require accurate timestamps that support visibility within the network and throughout the production process, eliminating any “blind spot” where issues can grow unnoticed.
By building a fully synchronised device network, TSN can support precise timestamping for timing analysis. In this way, food & beverage facilities can rely on a high degree of traceability throughout their networks and guarantee product quality and safety.
3. Better quality in automotive
TSN technology, particularly when combined with gigabit bandwidth, can also push manufacturing facilities to speed up their production processes, whilst ensuring determinism. This can be particularly useful for automotive assembly plants.
These facilities are responsible for the production of a wide variety of models, each characterised by different trim levels. Hence it’s mandatory for these manufacturing systems to handle large amounts of data generated in real time during the assembly of various car parts. Only in this way, manufacturers can ensure that the different combinations of possible model variations do not slow down cycle times and the allocated parts are fitted correctly on the right models, at the right time, in a traceable manner. Automotive companies can use TSN to build production lines that ensure short cycle times, as the technology combines advanced synchronisation with traffic prioritisation capabilities. The latter allow the network to deliver time-critical traffic exactly when needed, while allowing less critical traffic to co-exist on the network. Consequently, total cost of ownership can be reduced, since multiple types of network can now be combined onto a single hierarchy. The end result is higher performance, lowered costs and simplified maintenance. This finally translates into better quality vehicles.
4. Higher levels of integration for semiconductor manufacturing
Synchronicity and traffic prioritisation are also key to combining different types of process control on one network and effectively handling different recipes and activities across multiple machines and stations.
For example, TSN can support the semiconductor industry, which is characterised by numerous processing stages, all requiring process, discrete and motion control, along with integration of robots and IT systems. TSN-based networks for the sector allow businesses to mix time-critical data for high-performance, high-speed motion control with slower, less time-dependent traffic, e.g. for machine vision process monitoring. Furthermore, manufacturers are given the opportunity to integrate auxiliary systems into their process and associated networks.
Ultimately, semiconductor producers can enhance flexibility in their network architecture and in their processes.
John Browett is general manager of CLPA Europe