Invention Grant
US07428659B2 Programmable controller with CPU units and special-function modules and method of doubling up
有权
具有CPU单元和特殊功能模块的可编程控制器和加倍的方法
- Patent Title: Programmable controller with CPU units and special-function modules and method of doubling up
- Patent Title (中): 具有CPU单元和特殊功能模块的可编程控制器和加倍的方法
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Application No.: US10455738Application Date: 2003-06-04
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Publication No.: US07428659B2Publication Date: 2008-09-23
- Inventor: Eisuke Nagano , Masanori Fukushima , Kenichiro Tomita , Kazuaki Tomita
- Applicant: Eisuke Nagano , Masanori Fukushima , Kenichiro Tomita , Kazuaki Tomita
- Applicant Address: JP Kyoto
- Assignee: OMRON Corporation
- Current Assignee: OMRON Corporation
- Current Assignee Address: JP Kyoto
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Priority: JP2002-203285 20020607; JP2003-156654 20030602
- Main IPC: G06F11/00
- IPC: G06F11/00
Abstract:
A programmable controller includes two CPU units each having a detachably attached special-function module for carrying out a calculation process, each of the two CPU units recognizing conditions of the other CPU unit, one of them becoming an active unit and the other becoming a standby unit such that when the active unit fails and goes down the standby unit is switched to become active and resumes operations. The special-function module attached to the active CPU unit becomes an active module and carries out control processes with the active CPU unit and the other special-function module attached to the standby CPU unit becomes a standby module.
Public/Granted literature
- US20040025078A1 Programmable controller with CPU units and special-function modules and method of doubling up Public/Granted day:2004-02-05
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