Horner-apg SmartStack I/O HE-ADC120 Bedienungsanleitung PDF herunterladen (Seite 4)

PAGE 4 10 NOV 2006 MAN0235-09

ADC020/120

Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.

5 INPUT CONVERSION FACTOR

The following table describes how real-world inputs are scaled into the controller. Given a known input

current, the data value is configured by using the conversion factor from the table. The following formula

is used: Data = Input Current (mA) / Conversion Factor

Example: The user selects a current range of 0 to +20 mA:

1) The known input current is 14 mA..

2) Using the table, the conversion factor for the current range of 0 to +20 VDC is 0.000625.

3) To determine the data value, the formula is used:

Data = Input Current (mA) / Conversion Factor

22400 = 14 mA / 0.000625

Conversion of Real-World Inputs into Controller

Selected Current

Range

Input Current (mA)

Data Conversion Factor

+20.47 32752

+20.00 32000

0 to +20 mA

0 0

0.000625

-20.00 -32000

-20 to +20 mA

-20.47 -32752

0.000625

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Horner-apg SmartStack I/O HE-ADC120 Bedienungsanleitung Seite 4