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Data logging in CPU

Created by: mak at: 4/2/2007 9:59 AM (14 Replies)

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4/2/2007 9:59 AM	Rate (0)
mak Posts: 13 Rating: (0)	Hi all, i am using CPU317F. I want to log the data of DB's within 1 scan. because my certain data is very critical. & that values gettiing high/low for 1 scan only. Those data i could not able to log in WinCC 6.0 SP4. So iam looking for data logger which logs the event within one cycle scan of CPU. Regards
mak Posts: 13 Rating: (0)
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4/2/2007 6:53 PM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 12/5/2023 Posts: 4281 Rating: (1379)	Hi, I don't have a 100% solution but some ideas: 1 - Use SFB/SFC Alarm P/S to registry the values as alarms 2 - Use SFC AR_SEND to send the values as arquives
	Denilson Pegaia Siemens Industry Sector Technical Support
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4/3/2007 1:30 AM	Rate (3)
Dec Gold Expert Joined: 5/19/2006 Last visit: 11/29/2023 Posts: 548 Rating: (107)	Pegaia 2 - Use SFC AR_SEND to send the values as arquives SFB37 AR_SEND is only available with S7-400 . You can use BSEND toemulate an AR_SENDand fool WinCC by adding the required (AR_SEND)header to BSEND packet. Then in WinCC you can use the same Process Controlled Archive as you were using Archive raw tag but use BSEND raw tag.A possible scenario is to read process values every cycle in the PLC (>10ms cycle depend also on the AI channel integration time!) and store them into a circular DB buffer. When you detect a critical condition to log your values you scheduler a BSEND job, format SD_1 based on WinCC documentation for Process Controlled Archive formats and add the AR_SEND header. Drop me a line if you need the AR_SEND header info. I have done such application @ 10ms archive speed and S7-300 for QA signal processing. Dec

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This contribution was helpful to 3 thankful Users vipz H-H OMKRIS2017

4/3/2007 6:41 AM	Rate (0)
Aret Posts: 2348 Rating: (263)	Interesting solution! Could you please upload/email some small sample?
Aret Posts: 2348 Rating: (263)
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4/3/2007 9:19 AM	Rate (0)
TechFOX Posts: 13 Rating: (0)	Pls. send me the details as i have similar requirements.
TechFOX Posts: 13 Rating: (0)
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4/4/2007 6:11 PM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 12/5/2023 Posts: 4281 Rating: (1379)	Sorry, I don't have paied attention on the AR_SEND x S7-300...
	Denilson Pegaia Siemens Industry Sector Technical Support
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4/10/2007 9:28 AM	Rate (4)
Dec Gold Expert Joined: 5/19/2006 Last visit: 11/29/2023 Posts: 548 Rating: (107)	see attached AR_SEND FB scl source file. Config a connection IDb/w PLC (active)and WinCC. Use CFC for easy program FB block. In WinCC create BSEND raw tags on the channel connection(check Send/receive raw db and match cres). If you need to fill time stamp in WinCC make a global action on raw tag change andfill DT - UTC.Copy all toan internal Archive Raw tag and configure TagLogging on this tag. Dec Attachment AR_BSEND.zip (497 Downloads)
	Last edited by: Dec at: 10.04.2007 10:10
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This contribution was helpful to 5 thankful Users fritz Berg io ba Amoralis ZHK

4/30/2010 5:21 PM	Rate (0)
Carlos_Mdza_Arg Posts: 5 Rating: (0)	Dec I am testing your aplición AR_BSEND.zip and I have a problem. I made a small change in FB2 in all lines with "Unit_Current: WORD: = W # 16 # 0103" for this new line "Unit_Current: WORD: = W # 16 # 0003" I get the RAW data in WinCC Tag (V7), but no data is stored in the files concerned. The configuration files are: AR_ID =1 AR_ID-SUB = 1 and AR_ID =1 AR_ID-SUB = 2 What can be the source of the problem?
Carlos_Mdza_Arg Posts: 5 Rating: (0)
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4/30/2010 11:33 PM	Rate (0)
Carlos_Mdza_Arg Posts: 5 Rating: (0)	Dec, I found the problem, the change I made is wrong, "Unit_Current: WORD: = W # 16 # 0103" includes Unit (Type) and Unit (Area). AR_BSEND.zip application is working very well. Now my question is: Where I can find detailed information about the headers S7RDARHDS and S7RDHDS? Thank you very much. Regards.
Carlos_Mdza_Arg Posts: 5 Rating: (0)
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5/7/2010 5:21 AM	Rate (0)
Dec Gold Expert Joined: 5/19/2006 Last visit: 11/29/2023 Posts: 548 Rating: (107)	S7RDHDS is part of S7CHN.H WinCC-ODK I come up withS7RDARHDS if I remember correct after debugging the telegrams and the values received in WinCC raw-tag. It's been some time. Now you can even use WinAC-RTX 2009 that supports AR_SEND. Dec

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