10/18/2012 4:32 PM | |
Posts: 1 Rating: (0) |
hi Pegaia |
1/18/2013 10:37 AM | |
Joined: 9/23/2005 Last visit: 9/19/2024 Posts: 4347 Rating: (1446)
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Hi Once you have already create a datalog (anyway), you should not give the command to create it again (make no sense). It should be worked by user software: either save the information that you have alread created the log, or manage the errors codes of the blocks. The blocks "Data Log Open"; "Data Log Close"; "Data Log New File" are descripted in the S7-1200 System Manual (36932465 ) chapter 8.7. Here a quck description, copied from that: Data Log Open Opens a pre-existing data log file. A data log must be opened before you can write new records to the log. Data Log Close Closes an open data log file. DataLogWrite operations to a closed data log result in an error. No write operations are allowed to this data log until another DataLogOpen operation is performed. Data Log New File: Allows your program to create a new data log file based upon an existing data log file. |
Denilson Pegaia |
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1/23/2013 4:24 AM | |
Joined: 8/31/2010 Last visit: 9/18/2024 Posts: 1521 Rating: (227) |
Hello All, Find one more exhaustive application example which is released recently and it discusses on Process Data Acquisition and Monitoring with SIMATIC S7-1200 (Data Logging)with the new possibilities which enhances the usability of Data Logging in S7-1200. |
Like it? Rate it! |
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1/30/2013 12:23 PM | |
Posts: 11 Rating: (0) |
Hi Pegaia Thanks for the response, is there information about pulses in any of the manuals which i can follow to sort this data logging out? Irvin |
2/3/2013 10:50 PM | |
Posts: 11 Rating: (0) |
I couldnt find the table you specified in the system manual-is ot possible you made an error? |
2/4/2013 2:12 PM | |
Joined: 7/7/2010 Last visit: 9/19/2024 Posts: 15207 Rating: (2417)
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https://support.automation.siemens.com/WW/llisapi.dll?query=s71200+system+manual+04%2F2012&func=cslib.cssearch&content=adsearch%2Fadsearch.aspx%3Ftab%3D2&lang=en&siteid=csius&objaction=cssearch&searchinprim=_searchinprim_&nodeid=99&x=16&y=8&cssearchengine=NEW&x=0&y=0 That link brings up the current system manual. The table numbers change between revisions. It is rev date 04/2012. |
science guy |
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3/21/2013 1:45 PM | |
Posts: 6 Rating: (0) |
Is it possible to send the CSV file to e-mail using the instructions TM_MAIL? |
6/10/2013 10:30 AM | |
Posts: 25 Rating: (0) |
is there a way to save the data log on the memory card without the web server ? and how ? thank you
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6/10/2013 11:23 AM | |
Posts: 11 Rating: (0) |
I am sure you can view the datalog on the memory card if you removed it and put into pc, but using the webserver you can access it much easier without interrupting your system by removing memory card. |
6/11/2013 1:12 PM | |
Posts: 25 Rating: (0) |
i checked the memory card and the data logs were saved there too. as you said, its much more easier to use the web server than to use the memory card. Thanks alot.
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7/18/2013 6:58 PM | |
Joined: 6/26/2013 Last visit: 9/5/2022 Posts: 2 Rating: (0) |
HI: IS necessary yo have a siemens Memory card or can I use any memory card? second: how can I see and send data using my own page user on my S7-1212C? thank you. |
7/20/2013 7:08 PM | |
Posts: 27 Rating: (0) |
I am working with a 1214C CPU with a 24 MB memory card. I have made an datalogging program based on your example Pegaia. I have the following problem. My datalog starts to overwrite the values at 25 records. Which is strange. No matter what value I write at the records input of the datalogcreate block. I log the following variables: Cycle numbe: string[11] Description: string[30] Measurement: [string] The csv file is 9kb large when I transfer and look at it, so the format that I am loging can't be too large, can it? Any input would be helpfull. Thanks in advanced. Best regards Ales
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7/22/2013 9:19 AM | |
Posts: 11 Rating: (0) |
Are you opening the file by just clicking the name in the webserver or are you actually downloading the file and saving it first? I have noticed that it shows only 25 when you just click on the name. Click on the download (floppy symbol), save it then open it and you should see everything. |
7/23/2013 10:49 AM | |
Posts: 27 Rating: (0) |
Hello IrvinC. Yes this was the reason, I was clicking on the link not on the floppy diskette. I was curious and inserted the SD card in to my computer and saw that all the data logs are 1 MB large. So I opened them and all the records were complete. So then I inserted the SD card back to the PLC and tried to download it by clicking on the diskette and it downloaded the complete file. Strange that the link has a sort of preview function, this should be stated somewhere IMHO. Thanks Best regards. A |
7/23/2013 11:01 AM | |
Posts: 11 Rating: (0) |
You can change the number of entries to view (just below the link) to what you require and then see more records that way if you wish. |
12/31/2013 5:56 PM | |
Posts: 62 Rating: (0) |
Hi all. I've got a question regarding of the read out of the real variable in a data log. Is it possible that the real variable would be written in this format to the datalog: 55.5 not like this5.500000E+01.
Doubt it, but it's worth to ask. Thanks in advanced, and have a great 2014 every one!!!! Cheers |
12/31/2013 7:34 PM | |
Posts: 20 Rating: (0) |
Hello, If you get those data in an EXCEL file, you will be able to transform the value format by selecting the boxes and chosing "number" instead of "scientific". These are the French terms that I translated in English, I don't know if it corresponds to the English terms. I hope it can help you. Anyway, I wish you a happy new year. |
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1/2/2014 5:48 PM | |
Posts: 62 Rating: (0) |
Thank you for the info, I'll convert it like so. Cheers
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1/21/2014 2:54 PM | |
Posts: 340 Rating: (6) |
new question is splittet to using data logging blocks in 1200 plc. |
3/8/2014 8:35 AM | |
Posts: 1 Rating: (0) |
dear sir con we use memory card for this and how to define path and interval for data loging. |
3/10/2014 10:50 AM | |
Joined: 9/23/2005 Last visit: 9/19/2024 Posts: 4347 Rating: (1446)
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Hi, the past interval is defined by user program, by the requisitioncommand of the write block. E.g. high precision time intervals could be get with time interval OB's. |
Denilson Pegaia |
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5/22/2014 4:15 PM | |
Posts: 67 Rating: (1) |
thanks you |
12/11/2014 12:00 PM | |
Posts: 25 Rating: (0) |
Hi, I have additional requirements. 1) In this program if data reached to record number limit it stops recording, How to overright data, and get latest last 100 records. 2) How to clear the memory, and under same name start recording from beigning. Thanks in advance
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1/9/2015 9:58 AM | |
Posts: 25 Rating: (0) |
Hi O_Moderator, No answer to my last post. In addition to that: 1) How to delete last created files. 2) Every time if I make changes like increase number of variable, change type of variable, it stops recording than I have to change the name of file every time. 3) It is not recording variables more than 3. How to increase number of variable for recording. Thanks in advance! |
1/22/2015 10:21 AM | |
Joined: 9/23/2005 Last visit: 9/19/2024 Posts: 4347 Rating: (1446)
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Hi, up to now, the only way to delete a data log is from Web interface. It not possible to match in a same data log two or more different data structures. |
Denilson Pegaia |
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This contribution was helpful to1 thankful Users |
1/27/2015 5:25 PM | |
Joined: 3/11/2007 Last visit: 7/18/2024 Posts: 226 Rating: (13) |
Good evening, I have some concerns on the use of the datalog. I do not understand why you do not create the headers of the columns, and because the data is not displayed in the column as it is represented in the system manual. You may aiutamrni. I enclose picture. Thank You ----------------------------------------------------------------------------------------- Buonasera, ho delle perplessità sull'utilizzo del datalog. Non comprendo il perchè non vengono create le intestazioni alle colonne, ed il perchè i dati non sono visualizzati in colonna come invece viene rappresentato nel manuale di sistema. Potreste aiutamrni. Allego immagine. Grazie |