Invention Grant
- Patent Title: Redundant watchdog method and system utilizing safety partner controller
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Application No.: US15488893Application Date: 2017-04-17
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Publication No.: US09964937B2Publication Date: 2018-05-08
- Inventor: Kian Kiat Koh
- Applicant: Rockwell Automation Asia Pacific Business Ctr. Pte., Ltd.
- Applicant Address: SG Singapore
- Assignee: Rockwell Automation Asia Pacific Business Ctr. Pte. Ltd.
- Current Assignee: Rockwell Automation Asia Pacific Business Ctr. Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Fay Sharpe LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G05B19/042 ; G06F11/07

Abstract:
This disclosure provides an automation controller method, system and apparatus including a redundant watchdog utilizing a safety partner controller. According to an exemplary controller, the controller includes a first processing unit, a second processing unit, and an integrated circuit configured to receive as inputs fault indicator signals from the first and second processing units, and the integrated circuit configured to disable I/O communications for a fault condition detected by the first or second processing units.
Public/Granted literature
- US20170220015A1 REDUNDANT WATCHDOG METHOD AND SYSTEM UTILIZING SAFETY PARTNER CONTROLLER Public/Granted day:2017-08-03
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