Multi-protocol field device and communication method
US6959356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2001 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jan 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/25014
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multi-protocol smart field device uses a Fieldbus communication protocol to communicate process control information and uses a HART communication protocol to enable local configuration of the field device via a hand-held HART communicator. The multi-protocol smart field device includes a first communications interface communicatively coupled to a digital data bus that is adapted to process HART communications which are received from and which are sent to a HART hand-held communicator. The multi-protocol smart field device further includes a second communications interface communicatively coupled to the digital data bus that is adapted to process Fieldbus communications. Additionally, the multi-protocol smart field device includes a first filter coupled between the first communications interface and the digital data bus that substantially attenuates signals having frequencies associated with Fieldbus communications and a second filter coupled between the second communications interface and the digital data bus that substantially attenuates signals having frequencies associated with HART communications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.