prBAS EN IEC 61139-3:2025

IEC 61139-3:2023 specifies a wireless single-drop digital communication interface (SDCI wireless). This is an extension to the single-drop digital communication interface (SDCI) technology that is specified in IEC 61131-9. This document specifies the wireless communication services and protocol (physical layer, data link layer and application layer in accordance with the ISO/OSI reference model) for W‑Masters and W‑Devices. NOTE This document does not cover the integration into higher level systems such as fieldbuses.