Partial redundancy for I/O modules or channels in distributed control systems
US9053245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Aug 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes at least one first input/output (I/O) module having multiple first I/O channels. Each first I/O channel is configured to provide a communication path. The apparatus also includes a second I/O module having multiple second I/O channels. Each second I/O channel is configured to provide a redundant communication path for one of the first I/O channels. The apparatus is configured to provide the redundant communication paths for only a subset of the first I/O channels. The first I/O channels may include critical I/O channels and non-critical I/O channels, and the apparatus may be configured to provide the redundant communication paths for only the critical I/O channels. The apparatus can be configured to provide the redundant communication paths for the first I/O channels of a single first I/O module or multiple first I/O modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.