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Pt100 Values On The Xl4-1E5


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I have had difficulty finding the scaling factor for the temperature readings for the PT100 inputs on the XL4 105.


1. Set all the jumpers correctly. See the data sheet for the PT100 settings.


2. Connect the PT100 according to the diagram on the data sheet.


3. Read the value as an integer from either AI1 or AI2 depending on which input the PT100 is connected to.


4. Divide the number in AI1 or AI2 by 2 to read the temperature in tenths of a degree C, or by 20 to read the value in degrees C.

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