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Low-Voltage Power Distribution and Installation Technology

Sentron PAC3200 How to Get Values

Thread Starter: fuzzy pid   Started: 9/10/2008 7:39 PM   Replies: 12

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  9/10/2008, 7:39 PM
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Dear SIEMENS forum members,

We have SENTRON PAC3200 Energy Analyzer.
I connect one device to read some current & voltage values (I can read from sentron)

(we use profibus dp communication)
I have successfully configurated Sentron from step7 .
I also configurated device settings
Communication is ok , no problem grin
(Profibus module light is always green)


As a master / slave communication structure, 
I know that I need to write something to those QBytes, to get values from SENTRON.
(I guess, It doesnt give the values directly)
What do I need to do ?
What should I write to QW272 & QW273 ?

Thanks in advance

Best regards

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Genetic Fuzzy PID Controller

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  9/10/2008, 8:08 PM
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Hi

 

Try steps in this manual: Manuál PAC PROFIBUS DP ( http://www1.siemens.cz/ad/current/file.php?fh=9026184b28&aid=286132&PHPSESSID=62d8c2c5baa0c2a1f4be09af5f29eb56 ) part 6 Configuring  blush

you will find GSD v1.0 and GSD v2.0 with the same Expansion module PAC PROFIBUS DP, 7KM9300-0AB00-0AA0 :

https://support.automation.siemens.com/WW/skm/frameset.asp?url=%2FWW%2Fllisapi%2Edll%2F27552047%3Ffunc%3Dll%26objId%3D27552047%26objaction%3Dcsopen%26siteid%3Dcseus%26skm%3D1%26lang%3Den&Query=SENTRON+PAC3200&SearchArea=downl&id=27552047&F11Marker=true&siteid=cseus&query2=&modelled=&lang=en

regards




=== Edited by UMENCHO @ 9/10/2008 8:17 PM [GMT ] ===


=== Edited by UMENCHO @ 9/10/2008 8:15 PM [GMT ] ===


=== Edited by UMENCHO @ 9/10/2008 8:10 PM [GMT ] ===


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  9/10/2008, 8:38 PM
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Hi ,

Thank you UMENCHO for your help,
I've read all document.

But I need more specific information.

Regards

Genetic Fuzzy PID Controller
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  9/24/2008, 11:45 PM
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Hi,

It is not necessary to write anything to the output area for reading measured and metered values. Outputs are used for sending command to PAC, for example reset enery counter. See section 5.1.6 for command bytes.

It is not clear which CPU you are using, so I do not know the address you used fall on PII/PIQ area or pheripheral area. I am going to assume that it outside image area. If not change all PID with ID .

Here is the data mapping of your config for reading values
AddressSignalFormat
PID272Status signals as per section 5.1.5 of manual Binary
PID276Phase current a in AFloat(Real)
PID280Phase current b in AFloat(Real)
PID284Phase current c in AFloat(Real)
PID288Total active power in WFloat(Real)
PID292Voltage Va-b in VFloat(Real)
PID296Voltage Vb-c in VFloat(Real)
PID300Voltage Vc-a in VFloat(Real)
PID304 or PID 308Active energy import tariff 1 in Wh??
PID312Total power FactorFloat(Real)

I am not clear about the format of tariff data. There are 8 bytes assiged to this. If you need this data you may have to play with this data and compare it with data displayed in PAC screen to understand it.

Hope this is enought info for you.

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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Thank you for this post from:
  9/26/2008, 12:39 PM
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Hi JMJ,

That answer is exactly what I need .

I will inform you after I try

Regards

Genetic Fuzzy PID Controller
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  9/27/2008, 1:36 PM
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Hi JMJ,

I still have problem with Sentron,

Best regards,

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Genetic Fuzzy PID Controller

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  9/29/2008, 2:28 PM
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I think it because your DP data is with "Total Consistancy". You have two options here.

  1. If your CPU has Firmware >2.5, then you can change your HW config to fit the IO in the Process image area and use ID instead of PID. This is possible only if Firmware is >2.5. Check the FAQ http://support.automation.siemens.com/WW/view/en/8751062
  2. Use SFC14 to read the data from the area as per your config. Since there are two submodules in HW config (Basic Type2 : 24 input bytes , Basic Type 1 : 20 input bytes) You will have to call SFC14 twice. Once for Basic type 2 and once for Basic type 1.

So the parameters for SFC will look like.
________________________________
For Basic Type 2:
LADDR : W#16#100 //100(Hex)=256
RET_VAL: MW 100
RECORD: P#DB100.DBX0.0 BYTE 24
________________________________
 
________________________________
For Basic Type 1:
LADDR : W#16#118 //118(Hex)=280
RET_VAL: MW 102
RECORD: P#DB100.DBX24.0 BYTE 20
________________________________

Now you should have your data in DB100 (create DB with same structure as your read area, So it should have atleast 44 bytes).


Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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  1/7/2009, 4:36 PM
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Hello:
I have a Pac3200 networked. I am trying to connect 7 WinCC Modbus TCP-IP, and not me. However communicates perfectly with powerconfig. I do not place any more in such settings.

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  1/7/2009, 11:18 PM
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Hello Oscar,

Do You meant to say that you connect and read the variables with wincc7 ?

I try to connect with simatic step7, and as JMJ said , i tried as PID256 or whatever I want to read I could be able to read the variables,

but I havent tried with wincc7, its good to learn if you will explain.

best regards

Genetic Fuzzy PID Controller
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  1/8/2009, 9:36 AM
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I have a sentron pac3200 connected modbus TCP-IP network.
I have no Profibus module, and the intention is connected through a network WinCC 7.
I have not come to connect to WinCC through 7, there are no specifications on how to connect the pac3200 with wincc7, add the module modbus tcp-ip. but do not say what kind of cpu should be added, or whether we should add some addon for communication.
I would like to explain from the outset to add the configuration sentron andalusia wincc7
  
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