Process field device with radio frequency communication
US7262693B2 · kind B2 · utility
49Cited by
77References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2004 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Jan 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/80
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.