Flexos Applications; Optional Applications; Digital I/O Configurator - Extron electronics SMP 300 Series User Manual

FlexOS Applications

This section provides basic instructions on how to use each supplemental plug-in
application (app) available for the SMP 300 Series.
When an app is downloaded and installed, a user must have administrator privileges to
access the Advanced Features page and to use the applications. The apps are available
on the SMP 300 Series product page at www.extron.com.

Optional Applications

Digital I/O Configurator

This application allows the user to first configure and label the digital input/output (I/O) ports
and then create up to 16 different monitors that check for conditions and apply actions
when the conditions are met.
Figure 92.
NOTE: Pull-up resistors are often used with buttons and switches that are wired as
TIPS:
Configure Digital I/O Dialog Box
contact closures to ground. With a pull-up resistor, the input pin reads a high state
when the button is not pressed (the circuit is open). When the button is pressed, it
connects the input pin directly to ground, and the input pin reads a low state.
Here are some guidelines on when to select one of the pull-up modes.
• Input with pull-up — Enable the pull-up resistor if the external device does not
have the capability or is not configured to drive the SMP digital input above the
minimum logic high threshold (such as when connected to a switch contact closure
to ground, or when a digital output drives an open collector or drain).
• Output with pull-up — Enable the pull-up resistor if the load requires that a logic
high signal be driven from the source (the SMP) (when the load does not have its
own internal pull-up resistor, for example). Pull-ups do not need to be used when
driving loads that require only contact closure to ground (when controlling an Extron
IPL T PC1, for example).
SMP 300 Series • Flex I/O Applications 104