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Copyright 2004 National Semiconductor Corporation
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6. For Voltage Monitoring input functions
select the “12-20” Register Tab. The
screen should look like this:
In Register 12, Enable Voltage Sensor (0-
4).
7. Click on the Register 11 tab. The
screen should look like this:
The voltages that are present at the voltage
inputs of the LM40 will be displayed in
Register 11.
8. If the user clicks on the Start Plot button
a graph box will appear and will graph
the temperature. A temperature
example is shown below.
A Voltage Input Monitoring plot is shown below.
9. If the user clicks on the Start Log button
a screen will appear that looks like this:
The user may then select whatever directory
and file name of their choice and click on
“Open”. Data will be stored in the file for each
date/time and temperature.
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