1. BS EN 61131-9. Programmable controllers. Part 9. Single-drop digital communication interface for small sensors and actuators (SDCI) (7th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (300 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Information technology. Home electronic system (HES) architecture. Application protocols for electrical storage systems and controllers Part 4-302, (3rd May 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (54 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗