Redundant universal IO modules with integrated galvanically isolated (GI) and intrinsically safe (IS) barriers

US10579027B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Dinesh Kumar KN · Bengaluru, IN
• Murali Krishna Bezawada · Hyderabad, IN

Key dates

• Filing date: May 24, 2017
• Grant date: Mar 3, 2020
• Expiry date: May 10, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F13/409
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A system includes a back plane having at least one primary module and at least one secondary module that is redundant to the at least one primary module. The back plane is configured to limit energy from the at least one primary module and the at least one secondary module to a field device. The at least one primary module includes a first plurality of channels and is configured to provide channel to channel isolation among the first plurality of channels. The at least one secondary module includes a second plurality of channels and is configured to provide channel to channel isolation among the second plurality of channels.