Safety network controller redundancy in an electronic safety system
US11609543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/33226
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A safety network controller is comprised in an electronic safety system. The safety network controller comprises a first serial port and a second serial port, each of which is configured to communicatively connect to a redundant safety network controller via a respective daisy chain network. Each daisy chain network comprises at least one safety device controller that is controlling a corresponding safety device. The safety network controller further comprises network circuitry configured to communicatively connect to the redundant safety network controller via a packet-switched network. The safety network controller further comprises processing circuitry configured to exchange, with the redundant safety network controller: serial communication via each of the daisy chain networks; packets via the packet-switched network; and responsibility for control over one or more of the safety device controllers in response to detecting a failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.