5/9/2012 6:07 PM | |
Posts: 272 Rating:
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Dear All, Can we use S7 CPU as temperature data logger ??? The data has to be extracted out of PLC after 1 month. ??? |
5/9/2012 6:15 PM | |
Posts: 8946 Rating:
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Yes, no problem (funny question... But you must take care of the ammount of data. The size and number of datablocks is limited dependign from CPU. |
5/9/2012 6:23 PM | |
Posts: 557 Rating:
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Hello, which HMI are you using with this project? you can have data logging in hmi/wincc. |
5/9/2012 7:41 PM | |
Posts: 1064 Rating:
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another option is log to sql data base with opc server |
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5/9/2012 9:45 PM | |
Posts: 559 Rating:
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You can use S7-200 or S7-300 PLC as per your system requirement. After that you can use Wincc Flexible Runtime & configure data logging in that. Automatically all the data with selected timer periods will be saved in excel file. Here is an FAQ on How to archive STRING tags in WinCC Flexible using a script. Archiving STRING tags using a script This can be used for storing values from WinCC Flexible into MS Excel as well. |
5/10/2012 7:45 AM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating:
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Dear Prats, as stated by others before, you need to store the data in the PLC somewhere. You will find long term data logging in most TELECONTROL applications. There are hardware (TIM) & software (i.e. SIPLUS RIC) based solutions. Find more informations at: https://www.automation.siemens.com/mcms/topics/en/siplus/ric-telecontrol/Pages/home.aspx Regards. |
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