The most common answer is that with a larger market, less expensive network interfaces also appear on the market. After all, TSN will also be found in building automation and the automotive industry in the future. As a matter of fact, the market for embedded TSN solutions is expected to be significantly bigger than the current market for all industrial Ethernet solutions put together.
The greatest technical advantage of TSN over previous industrial Ethernet methods is its scalability. Unlike current industrial networks, TSN was not defined for a specific transmission rate. TSN can be used for 100 Mbps just as for 1 Gbps, 10 Mbps, or 5 Gbps.
It also enables topologies to be better optimized because now adapted data rates can be selected for various segments. Whether it's Gbps, 100 Mbps, or 10 Mbps, a unified layer 2—IEEE802.1/TSN—is used.
A uniform network infrastructure also helps personnel tasked with setting up and maintaining the network because, thanks to TSN, solutions can now be used in sectors other than automation: building, process, and factory automation and energy distribution alike.
This brings us to the next advantage, the training factor. TSN is already a topic at many universities, mostly in the research stage. However, technical and vocational colleges are already showing interest in this topic. We can fairly safely say that TSN will become basic knowledge for engineers, technicians, and skilled workers. Retraining for different fieldbuses will no longer be necessary.