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data logging cpu315-2 pn/dp

Created by: Vido at: 7/9/2007 11:53 AM (8 Replies)

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7/9/2007 11:53 AM	Rate (0)
Vido Posts: 10 Rating: (0)	Hello everyone! I have a program on my CPU wich is executed cyclic every 55ms using OB35 and I would like to log some variables on every cycle so I can then draw some graphical representation of the variables changing. I have tried logging variables in WinCC flexible, but there I can only log variables every 1 second. Could the logging be done inside OB35 and the data then transfered to computer ?
Vido Posts: 10 Rating: (0)
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7/9/2007 6:53 PM	Rate (1)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 2/13/2025 Posts: 4403 Rating: (1470)	Hi, it is not a "clear" idea, but the only idea that I have is: "stack" the data in a DB on each OB35 call. In winCC flexible show the "Table" or animate some itens (rectangles) to mount a "grafic".
	Denilson Pegaia Siemens Industry Sector Technical Support
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7/10/2007 11:32 AM	Rate (0)
Vido Posts: 10 Rating: (0)	Thank you for your answer. I have created a DB with an array of 400 samples, which will give me about 20 seconds of time. Then I wrote a function in SCL that writes values in DB array on every execution, and by incrementing the index a the same time, the values will be stored in a sequence. Then I will try to copy the values from data view to excel. Hope this will work I will report back tommorow when I try it out.
Vido Posts: 10 Rating: (0)
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7/11/2007 3:56 PM	Rate (0)
Vido Posts: 10 Rating: (0)	I have tried it out today and it works great, the variables are recorder in the DB and then I just open the DB online and copy them to excel. Thanks again!
Vido Posts: 10 Rating: (0)
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7/12/2007 3:24 AM	Rate (0)
dias_james Posts: 2 Rating: (0)	Ola Pegaia Estou lhe escrevendo pois estou com um problema, tenho uma cpu 315-2dp e um adaptador MPI/DP . Estou tentando comunicar com a mesma mas o micro sempre trava, estou usando um conversor USB para RS-232 pois este micro não possui porta RS-232. Tem idéia do motivo deste problema? Desde já agradeço sua atenção. James
dias_james Posts: 2 Rating: (0)
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7/12/2007 12:51 PM	Rate (0)
Blue Moderator Platinum Member Joined: 4/21/2006 Last visit: 1/27/2025 Posts: 510 Rating: (24)	Hello dias_james, please write your question in englisch so that all users can read this. Regards Moderator

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7/12/2007 11:35 PM	Rate (0)
dias_james Posts: 2 Rating: (0)	I am writing to it therefore I am with a problem, I have one cpu 315-2dp and an adapter MPI/DP. I am trying to communicate with the same one but the micron always constraint, I am using a converter USB for RS-232 therefore this micron does not possess door RS-232. It has idea of the reason of this problem? Since already I thank its attention. James
dias_james Posts: 2 Rating: (0)
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7/17/2007 4:56 PM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 2/13/2025 Posts: 4403 Rating: (1470)	Hi, I head a roumour that a USB/COM converter + PC adapterwill works, somewhere, however I have not seen any documentation that says that is homologated and works. I suggest you use the PC Adapter USBcable.
	Denilson Pegaia Siemens Industry Sector Technical Support
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12/14/2007 8:52 AM	Rate (0)
Kolma Posts: 57 Rating: (1)	Dear Vido, could you send me a sample, how you did it? Is it possible to send data directly to computer, because I would like to sample 6 variables every 100ms. Thank you, Kolma
Kolma Posts: 57 Rating: (1)
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