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| 7/25/2011 5:37 PM | |
Joined: 9/27/2006 Last visit: 11/1/2024 Posts: 12292 Rating:
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Hello r_nakhai; I don't quite understand your issue with MLFBs of the Siprotec family. The attached document showsan extract fromthe Siprotec 7SJ602 Profibus-DP manual; it shows which Energy mesurands are available and how the can be reached. Note that they start at byte 8from the base address ofthe established comms, and that they each occupy 4 bytes (datatype: unsigned DInt). Hope this helps, Daniel Chartier Link to the Siprotec manual: http://siemens.siprotec.de/download_neu/devices/1_General/Doku_Protokolle/Englisch/Profibus%20DP/Profibus_DP_with_SM_3-1_since_3-n/com_profibus_7sj602_en.pdf |
Last edited by: dchartier at: 7/25/2011 5:41 PMLast edited by: dchartier at: 7/25/2011 5:39 PM |
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| 7/26/2011 11:19 AM | |
Joined: 10/13/2008 Last visit: 12/2/2022 Posts: 73 Rating:
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Thank you dchartier I meam in this MLFB of relay , we can't connect Voltage sample to relay so it can't calculate power ( But the Terminal exist !! ) , but if the 7th position of MLFB be 2 or 6 We can connect a sample Voltage and calculate the Power. Is it any additional Hardware to add to this relay to have these parameters ? or maybe a Firmware update for it ? Thanks |
| 7/26/2011 11:38 AM | |
Joined: 10/9/2007 Last visit: 10/31/2024 Posts: 1251 Rating:
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Hi As you can see onpages 229 and 230 from the manual http://siemens.siprotec.de/download_neu/devices/7SJ602/Manual/7SJ602x_Manual_A5_V035201_en.pdf the hardware in different. You cannot add the voltage sensor on the device. I know that some Siprotecs, specially the differential transformer protection from Siprotec 4 generation, you can set a fixed Voltage values just for the power calculation. But this 7sJ60 is a Siprotec 3 family and this function is not available. I think you have to buy a transducer for this. For Profibus we have SimeasP: http://www.energy.siemens.com/hq/en/automation/power-transmission-distribution/power-quality/ Mike |
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Energy Automation products: Sicam, Siprotec, Digsi |
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| 8/9/2011 10:30 AM | |
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Joined: 10/13/2008 Last visit: 12/2/2022 Posts: 73 Rating:
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Hi Mike J Thak you very much for your help. |
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