“TSN 的引入将导致工业以太网协议领域的整合，”Marshall 说。“然而，一些协议不会迁移到千兆以太网，我们预计不会有一种协议主导市场并取代 100 兆网络中使用的所有已建立的工业以太网标准。由于 TSN 主要是第二层标准，因此主要协议将对其进行调整并将其集成到其规范中作为替代方案——例如，基于 TSN 的 PROFINET 或 CC-Link TSN 等。”

“我们希望 TSN 成为基于千兆以太网的控制器接口的标准，以允许控制器功能集群，在分布式系统中实现不同的机器控制并提高效率。潜在地，即使是不同的机器拓扑也可以在智能制造的标签下共存，”他补充道。

Marshall 表示，工业 TSN 配置文件规范 IEC/IEEE 60802 仍在开发中，尚未发布。TSN 的广泛推出将于 2023 年开始，等待现场级别安全算法的讨论，以及现场设备预处理数据的行业趋势。

Hilscher 将 TSN 视为一项关键技术，并计划大力投资于硬件和软件开发，以实现下一代千兆以太网通信。

“由于我们的努力，我们已经为我们的 netX 90 网络控制器实施了每秒 100 兆比特的 TSN 标准，用于评估目的。我们将继续获得宝贵的经验，我们将把这些经验融入未来的发展中，使我们能够对正在进行的标准化过程做出快速反应，”他总结道。



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“TSN has applications in the automotive industry — for example, autonomous driving — and in manufacturing wherever complex machines from various suppliers need to interoperate in a real-time network,” Marshall said.

Some of the key benefits of TSN include the following: new possibilities to establish real-time communication between different components regardless of the manufacturer; and different real-time protocols can use the same cabling and connections, which is currently not possible. However, interoperable protocol configuration is a prerequisite. Additional use-cases will emerge along with combining wired and wireless real-time networks.
“TSN enables standardized, real-time and vendor-independent communication in an industrial network and allows you to use the same wire for various applications,” Marshall added. “An example is having video and audio streams reliably transmit in parallel to multiple RTE protocols over the same media.”

At the same time, TSN maintains the benefits of some fieldbuses — e.g., the ability to use multiple types of network topologies, such as ring, star or daisy chain. This feature frees up the network setup according to application needs.

In addition, TSN does not limit bandwidth, so high link speeds above 1 Gigabit per second are possible. This feature future-proofs the standard and enables real-time traffic to be transferred over the same wire. Possible applications in industrial automation include:

• Communication between machines from different vendors in real-time.
• Prerequisite: same protocol.
• Merging of the ERP and MES levels.
• Real-time data streaming to a local cloud entity.
• Machine builders can decide which data is accessible.
• Centralized control.
• Usage of TSN on all levels (field to MES).
• Removes the hierarchical structure of today’s automation networks.
• PLCs are combined into a central unit.
• Remote control of actuators and sensors.
• Enables flexible manufacturing due to scalable virtual functionalities (virtual PLC).

“The introduction of TSN will lead to consolidation in the industrial Ethernet protocol landscape,” Marshall said. “Some protocols, however, will not migrate to Gigabit Ethernet, and we don’t expect one protocol to dominate the market and replace all established industrial Ethernet standards used in 100 Megabit networks. Since TSN is mainly a layer-two standard, major protocols will adapt and integrate it in their specifications as an alternative — for example, PROFINET over TSN or CC-Link TSN and others.”

“We expect TSN to become the standard in controller interfaces based on Gigabit Ethernet to allow controller function clustering, enabling different machine controls within distributed systems and increasing effectiveness. Potentially, even different machine topologies can coexist under the label of smart manufacturing,” he added.

Marshall said that the industrial TSN profile specification IEC/IEEE 60802 is still in development and unreleased. The broad rollout of TSN will begin in 2023, pending discussions on security algorithms at the field-level, as well as industry trends to pre-process data in field devices.

Hilscher regards TSN as a key technology, and plans to significantly invest in hardware and software development for next-generation Gigabit Ethernet communication.

“Because of our efforts, we have already implemented 100 Megabit per second TSN standards for our netX 90 network controller for evaluation purposes. We continue to gain valuable experience that we will incorporate into future developments, enabling us to react quickly to the ongoing standardization process,” he concluded.