HART-Kanalschnittstellenkomponente mit Redundanz

Details

Veröffentlichungs-Nr.

EP2506101

Aktenzeichen

EP12161430

Anmeldetag

27. März 2012

Veröffentlichung

10. Januar 2018

Erteilung

10. Januar 2018

Rechtsraum

EP

IPC

G05B19/042G05B9/03

Abstract

A channel interface component (30) including redundancy within a control system with highway addressable remote transfer (HART) channels (100, 200) is provided. In one embodiment, a circuit includes: at least two highway addressable remote transfer (HART) channels (100, 200), each HART channel (100, 200) including an input terminal (105, 205) and an output terminal (110, 210) configured to connect with a HART device (25) via a current loop; an channel interface component (30) coupled to each HART channel (100, 200) that is configured to support HART protocol signals for communications with the HART device (25), wherein the channel interface component (30) includes a suicide relay switch (35) for connecting or disconnecting each HART channel (100, 200) from the HART device (25); and a programmable logic device (80) coupled to the channel interface component (30) that is configured to perform modulation and demodulation of HART protocol signals for communications with the HART device (25).

Anmelder

Firma

General Electric Company

Land

🇺🇸 USA

Fachgebiete