发明授权
US08051220B2 Input/output device with configuration, fault isolation and redundant fault assist functionality
有权
具有配置，故障隔离和冗余故障辅助功能的输入/输出设备
- 专利标题： Input/output device with configuration, fault isolation and redundant fault assist functionality
- 专利标题（中）： 具有配置，故障隔离和冗余故障辅助功能的输入/输出设备
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申请号： US12646398申请日： 2009-12-23
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公开(公告)号： US08051220B2公开(公告)日： 2011-11-01
- 发明人: Michael D. Apel , Steven L. Dienstbier
- 申请人： Michael D. Apel , Steven L. Dienstbier
- 申请人地址： US TX Austin
- 专利权人： Fisher-Rosemount Systems, Inc.
- 当前专利权人： Fisher-Rosemount Systems, Inc.
- 当前专利权人地址： US TX Austin
- 代理机构： Marshall, Gerstein & Borun LLP
- 主分类号： G06F11/00
- IPC分类号： G06F11/00 ; G06F15/177 ; G06F13/38
摘要：
A process control system is provided having a plurality of I/O devices in communication using a bus. A primary redundant I/O device and a secondary redundant I/O device are coupled to the bus, where the secondary redundant I/O device is programmed to detect a primary redundant I/O device fault. The secondary redundant I/O device, upon detecting the primary redundant I/O device fault, publishes a primary redundant I/O device fault message on the bus. The controller may deactivate the primary redundant I/O device and activate the secondary redundant I/O device responsive to the primary redundant I/O device fault message.
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