Pressing and holding the button enables the OLED display, which shows the current
device ID and IP addresses for the NI ELVIS III. This functionality is always active,
even if an application is programmatically monitoring the button.
You can also programmatically monitor the button in your application to trigger or
control other events. You can acquire the values from the button by using the Button
Express VI in an RT application or by using the FPGA I/O node in an FPGA
application.
The following figure shows an example of using the Button Express VI, which is
highlighted, to monitor the button and display the current state using a Boolean
indicator. When you press the button, the Boolean indicator of the VI returns TRUE.
Note Take care when you press and hold the user programmable button
to display the device ID and IP addresses. If a running VI is monitoring the
button, it cannot dierentiate between a button press intended to enable
the display and a press intended to trigger an action by the application.
Pressing and holding the button enables the display and triggers the
programmatic action simultaneously.
Creating an NI ELVIS III Application
This tutorial explains how to create an NI ELVIS III application using the NI ELVIS III
Soware Bundle. It guides you through creating a project, building the block
diagram, and running the application.
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Creating an Project
© National Instruments
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NI ELVIS III Getting Started