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| 9/19/2010 11:59 AM | |
Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating:
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Hi check the picture,how it is possible to make an H system an F system and TUV certified. Best regards AttachmentCPU 417_H.zip (380 Downloads) |
| 9/19/2010 12:47 PM | |
Joined: 10/7/2005 Last visit: 11/16/2024 Posts: 3027 Rating:
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Hello hdhosseini not too sure if I fully understand your question and as such am able to provide you the answer you are after,but Siemens does have so called FH CPU's in the 400 range which support redundancy (the H=High availabilitypart) as well asSafety (the F=Failsafe part). S7-400 FH systemsarecommonly used in the arena of Process safety (e.g. Petro Chemical industry and the likes) and are certainly TUV certified (up to SIL3). There's plenty of infoto be found about all things SiemensFuntional Safety related HERE and below are the TUV certificates to take that "worry" away: TUV-Report (German "Technischer Überwachungsverein TUV") for SIMATIC S7 F/FH Systems, Annex 1 (English) Approval of the German "Technischer Überwachungsverein (TUV)" for the SIMATIC S7 F/FH Systems, (English) I hope this helps |
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| 9/19/2010 3:43 PM | |
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Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating:
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Hi fritz please check the picture, you can clearly see that the CPU is 417-4H ( 417-4HL04-0AB0).It is not a F CPU,how can they use it as F CPU? Best regards hdhosseini AttachmentS7400H.zip (339 Downloads) |
| 9/19/2010 4:12 PM | |
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Joined: 10/7/2005 Last visit: 11/16/2024 Posts: 3027 Rating:
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I guess they can because Siemens didobtain TUV approval for failsafe operation (F/FH operation) for itas per the link below: Release of Failsafe Operation for Innovated S7-400H CPUs I hope this helps |
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| 9/19/2010 5:51 PM | |
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Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating:
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Dear fritz thanks for your past notes.I checked manual A5E00109529-06 and as I undrestand this CPU needs runtime license and just safety I/O will be added to system to utilize safety requirements of a project. please check the attachment. Attachmentfinal.zip (319 Downloads) |
| 9/22/2010 11:48 AM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating:
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Hello hdhosseini,
This is not the whole story. The runtime license is just a piece of paper (copy of this certificate ) and 2 yellow stickers with TUV logo. When you certify a safety system, both software and hardware must be certified by a third party (other than contractor and customer). So, an H CPU with safety RT license (2 stickers) and F I/O modules without safety software blocks will not mean a safety system. And an H CPU with F I/O modules and safety software blocks without the RT license will not mean it's not a safety system. I'm sure you will find valuable information in the report of TUV certificate which is found in fritz's 1st reply. Best regards. H-H |
Last edited by: H-H at: 9/22/2010 11:52 AMI think fritz''s link for the report is incorrect. Check the report here, https://www.automation.siemens.com/mcms/safety-integrated/en/process-safety/sis/sis/Documents/tuev_report_fh.pdf |
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