Development of real-time ethernet based I/O network

The authors developed a new I/O network based on the TCnet technology which is standardized as IEC 61784-2 CPF11. This new network that is called TC-net I/O Loop has redundancy and reliability in addition to real-time and deterministic features which TCnet has, and its transmission control is realized by original medium access methodology based on the TCnet technology. In this article, we summarize the features of TCnet, and introduce the characteristics and redundancy technology of TC-net I/O Loop.