IEC 62026-2 Edition 2.1 (2019-07)

IEC 62026-2:2008+A1:2019 specifies a method for communication between a single control device and switching elements, and establishes a system for the interoperability of components with the specified communication interfaces. The complete system is called 'Actuator Sensor interface (AS-i)'. This second edition of IEC 62026-2 cancels and replaces the first edition published in 2000. It constitutes a technical revision. The main changes with respect to the previous edition are listed below:
- doubling the number of slaves from 31 to 62 by introduction of sub-addresses;
- introduction of AS-I safety system. THIS CONSOLIDATED VERSION CONSISTS OF THE SECOND EDITION (2008) AND ITS AMENDMENT 1 (2019). THEREFORE, NO NEED TO ORDER AMENDMENT IN ADDITION TO THIS PUBLICATION.