High availability device level ring backplane
US8769158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/33179
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A modular, high-availability network for an industrial control system employs a plurality of base modules having backplane and using network ring topology. Base modules may include I/O base modules for communicating with industrial processes or machines, an adapter base module for communicating with a programmable logic controller (PLC) and/or a bus expansion base module for providing additional I/O base modules. Base modules may be arranged side-by-side, having a backplane in a bank. Another embodiment may include having plurality of banks. The network ring topology used by the base modules is normally opened by a ring supervisor at the ring supervisor location. Upon failure of the network, the ring supervisor reconnects the ring to provide an alternative transmission path around the failure point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.