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SIL rating of a S7300F CPU

Created by: Raymondk at: 7/10/2009 4:59 PM (6 Replies)

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7/10/2009 4:59 PM	Rate (0)
Raymondk Posts: 62 Rating: (0)	Hello everyone, I will like to do a project using one CPU 315F-2 PN/DP with safety IO,s also. It there any document that can tell me the SIL rating using one CPU and Saftey IO,s. I also know that it will depend on the end devices use. but for now i will like to know what SIL rating i can meetby usingone S7300 CPU315F with safety IO's. Thank you all as i await your responce. Raymondk
Raymondk Posts: 62 Rating: (0)
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7/10/2009 5:25 PM

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OmegaProjects

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Joined: 11/14/2008

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You can all find it back in the manuals of it
For example

Product	CPU 315 F 2DP/PN
Product ID	6ES7315-2FH13-0AB0
λ (landa/hour)	_
λ (landa/year)	_
Test interval (jaar)	4
PFD(/10 years)	4,76E-05
PFD (/testperiode)	1,90E-05

Here ya go :)

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FailSafe_SIL.zip (353 Downloads)

7/10/2009 5:56 PM	Rate (0)
Safety1 Posts: 73 Rating: (20)	Hello S7Maniaq, This is the most up to date list I could find. http://support.automation.siemens.com/WW/view/en/27832836
Safety1 Posts: 73 Rating: (20)
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7/10/2009 6:07 PM	Rate (0)
OmegaProjects Silver Member Joined: 11/14/2008 Last visit: 5/6/2024 Posts: 504 Rating: (22)	Helo Safety1 , Thanks a lot but it was ment to help Raymondk :) I made a SIL calculation once upon a time and a send a couple of thing , what you've send seems better , Thanks

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7/10/2009 7:26 PM	Rate (0)
Raymondk Posts: 62 Rating: (0)	Thank you all very much for your help. Both information is very good for me. One more question. Is it Ok to use the S7300F for process safety monitoring and shutdowns? Regards, Raymondk.
Raymondk Posts: 62 Rating: (0)
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7/10/2009 8:05 PM	Rate (1)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (308)	Hello, Here a sample of IEC62.061 computation. http://support.automation.siemens.com/WW/view/en/23996473
	Best regards jklm Suggestion was helpful? Feel free to rate it.
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This contribution was helpful to 1 thankful Users dchartier

7/11/2009 1:53 PM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 9/7/2024 Posts: 3018 Rating: (1054)	Raymondk One more question. Is it Ok to use the S7300F for process safety monitoring and shutdowns? Hello Raymondk in principle yes,if you only go by theSIL3 rating, which is the sameas it's "Big Brother" - the S7-400 F/H systems. You will however typically use an S7-400 F/Hsystem for process related safety monitoring and shutdowns, simple because you may need the H (Highavailbailty) to ensure youcan safely shutdown the process (there is no clear cut Yes or No answer, it depends on what you need to monitor and more importantly how you need to shut the process down). The S7300F systems (and the 416F) are however aimed at the machine safety market. One last thing, Siemens has a so called Safety Evaluation Tool (there is even a dedicated conference in the "general conferences" section)which may also be of use for you, the link to it is: Safety Evaluation Tool I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 2 thankful Users miami yy1

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