Method and apparatus to replace an electrical power module in a wireless valve positioner without power disruption
US9841741B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jun 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/34445
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A process control device includes an interface configured to communicate with other devices in a process control system. The process control device also includes a primary power source, the primary power source configured to provide power to at least one component of the process control device, which component, if not powered, would result in disruption to the control of the process. The process control device still further includes a terminal configured to electrically couple the process control device to an auxiliary power source such that the auxiliary power source provides sufficient power to the at least one component when the auxiliary power source is connected to the terminal such that the process control device remains operable to control the process in the absence of the primary power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.