8/17/2006 5:47 PM | |
Posts: 38 Rating:
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Please look at the following link https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&caller=view&lang=en&siteid=cseus&aktprim=0&extranet=standard&objid=10805152&DataKey=10805152&treeLang=en Regards, PRK |
9/13/2006 6:20 PM | |
Joined: 9/23/2005 Last visit: 8/21/2024 Posts: 4347 Rating:
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Hi, May be, because a difficult with English, that I have, I can’t understand what you mean with “WHERE IS THE COUNT FROM“ However I can give you some general explanations: 1 – That I know, the scale electrical unit - “PLC unit” is arbitrary and depends of the vendor / product, and of many factors, like for example, the module resolution. I don’t know a standard to it (maybe only for Profibus PA instrumentation devices, which works directly with real values). 2 – For Voltage or Current measurements a S7-200 has the scale relationship: 100% of the range (for example 10V or 20 mA) corresponds to 32000 in “PLC units”. 3 – For Voltage or Current measurements a S7-300 / S7-400 has the scale relationship: 100% of the range (for example 10V or 20 mA) corresponds to 27648 in “PLC units”. 4 – For temperature measurements a S7-200, 300 or 400 have a scale relationship of 1:1, 1:10 or 1:100 (for example 36,5 Celsius corresponds to 365) in accordance of the type of the sensor. 5 – The scale relationships are decrypted in the S7-200 Manual (http://support.automation.siemens.com/WW/view/en/1109582) appendix A and S7-300 module data manual (http://support.automation.siemens.com/WW/view/en/8859629) chapter 4. |
Denilson Pegaia |
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9/16/2006 5:26 AM | |
Posts: 5 Rating:
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Dear Pegaia, Thank you very much for your helps ! [:xxx:] |
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