Panasonic FP-X0 L14R User Manual page 29

Conversion program using Scaling instruction (F282)
Appropriately interpolated data can be obtained from nonlinear data by creating the data table of digital
-
values after conversion and temperature and executing the scaling instruction (F282).
Example of data table
Input data (Digital value
after conversion)
DT0
DT1
DT2
DT3
:
:
DT11
Note) In DT0, specify the value of paired data.
2.4.5 Voltage input
Connect the output line of a device to the analog input connector externally to perform voltage input.
Circuit diagram
Voltage input value and digital conversion value
Use the following formula to convert the voltage input value and digital conversion value.
-
Voltage input value (V) = ―――――――――――――― x 10
[Example] When digital conversion value is K900;
Voltage input value (V)= ――――――― x 10 = 8.80V
Input impedance
Approx. 1MΩ
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Output data
(Temperature)
11
332 DT12
409 DT13
487 DT14
: :
: :
878 DT22
Do not connect anything with the 1/2 pin.
-
(Digital conversion value + 1)
1012
(K900 + 1)
1012
DT90044 : Special data register
(Digital value after thermister input
conversion)
DT0 : Beginning of data table
DT100 : Data after conversion (Temperature)
50
60
70
:
:
150