What is IEC 62439-6:2018?

IEC 62439-6:2018, also known as the Industrial communication networks - High availability automation networks - Part 6: Evaluation criteria for time-sensitive networking (TSN) standards, is an international standard that focuses on ensuring high availability in automation networks. In simpler terms, it sets guidelines for implementing robust and reliable communication infrastructures in industrial environments.

The importance of high availability

In industrial applications, downtime can have severe consequences, such as production disruptions, financial losses, and compromised safety. This is where high availability comes into play. High availability refers to a system or network's ability to provide uninterrupted operation even when encountering failures or disturbances. IEC 62439-6:2018 lays out evaluation criteria to maintain high availability in automation networks, leading to increased operational efficiency and reduced risks.

Time-Sensitive Networking (TSN)

One key feature of IEC 62439-6:2018 is its focus on Time-Sensitive Networking (TSN). TSN allows for deterministic and low-latency communication within automated systems. Traditionally, Ethernet-based networks were not suitable for time-critical applications due to their non-deterministic behavior. However, with TSN, bounded latency and guaranteed delivery of critical data are possible, opening up new possibilities for real-time control and synchronization in industrial environments.

Evaluation criteria outlined in IEC 62439-6:2018

IEC 62439-6:2018 introduces several evaluation criteria to ensure compliance with high availability requirements. These criteria cover various aspects of network design, configuration, and monitoring. Some important evaluation criteria include redundancy mechanisms, fault recovery times, synchronization accuracy, traffic shaping, and interoperability between devices from different vendors.

In conclusion, IEC 62439-6:2018 is an international standard that addresses the need for high availability in industrial automation networks. By providing evaluation criteria and guidelines for implementing Time-Sensitive Networking, it enables reliable and deterministic communication within automated systems. Adhering to this standard can greatly enhance the operational efficiency and reliability of industrial networks, minimizing downtime and maximizing productivity.