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| 10/15/2012 12:41 PM | |
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Posts: 153 Rating:
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Is it possible to make redundant system with 3 PLC ????????? |
| 10/15/2012 2:23 PM | |
Joined: 9/27/2006 Last visit: 10/5/2024 Posts: 12283 Rating:
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Hello p'abs; Do you mean:"Is it possible to have a redundant system based on 3 processors in Siemens' world?" There are some non-Siemens redundant systems that are based on 3 processors, they are generally referd to as "Triple Modular Redundant": Triconex and Honeywell offer them (amongst others), but not Siemens. HIMA even proposes a Quad Modular Redundancy (QMR) system. But not Siemens. Here are a few discussions that cover the subject (you will find a lot more on the web) and a presentation of Siemens' FMR system as a redundancy solution: Discussions on the TMR issue from the Siemens A&D forum: /tf/WW/en/Posts/66961 /tf/WW/en/Posts/77259 Discussion on TMR architectures (from another PLC forum): http://www.control.com/thread/1026153895 Siemens' proposedsolution: How Siemens Safety Systems FMR Architecture Competing with TMR Systems! Hope this helps,
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Last edited by: dchartier at: 10/16/2012 2:12 AMLast edited by: dchartier at: 10/15/2012 2:24 PM |
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| 10/16/2012 8:45 AM | |
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Posts: 153 Rating:
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thanks for sharing information
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