Horner APG SmartStack I/O HE-ADC110 - Manual (Page 4)

PAGE 4 10 NOV 2006 MAN0234-09
ADC010-110
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
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5 INPUT CONVERSION FACTOR
The following table describes how real-world inputs are scaled into the controller. Given a known input
voltage, the data value is configured by using the conversion factor from the table. The following formula
is used:
Data = Voltage In (Vin) / Conversion Factor
Example: The user selects a voltage range of 0 to +5 VDC:
1) The known input voltage is 3 VDC.
2) Using the table, the conversion factor for the voltage range of 0 to +5 VDC is .00015625.
3) To determine the data value, the formula is used:
Data = Vin / Conversion Factor
19200 = 3 VDC / 0.00015625
Conversion of Real-World Inputs into Controller
Selected Voltage
Range
Voltage In (Vin) VDC Data Out Conversion Factor
+5.11 32704
+5.00 32000
0.00 0
NA NA
0 to +5.00 VDC
NA NA
0.00015625
+10.23 32736
+10.00 32000
0.00 0
NA NA
0 to +10.00 VDC
NA NA
0.0003125
+5.11 32704
+5.00 32000
0 0
-5.00 -32000
+/-5.00 VDC
-5.11 -32704
0.00015625
+10.23 32736
+10.00 32000
0 0
-10.00 -32000
+/-10.00 VDC
-10.23 -32736
0.0003125