Digital Input and Output

Handles the Digital inputs and outputs on the VMX.

Important

If using the High-Current Digital I/O Bus, it can only be configured as all inputs or all outputs (default).

Description of Digital Input and Output

vi	Attributes
Digital Input and Output	Digital signal initialization
Read	Digital signal reading
Write	Digital signal writing

Digital Input and Output (vi)

Is a class that contains the code for reading and writing to the digital I/O bus. Has only a HG_LIB output.

Read

A vi that allows for reading the digital state of the input pin specified by the Create ID vi.

Inputs and Outputs

Name	I/O	Attribute
Digital Input and Output in	Input	The input cluster from Create ID
error in (no error)	Input	The error input cluster
Digital Input and Output out	Output	The output cluster to go to Delete ID
Boolean	Output	The boolean value read on the digital pin
error out	Output	The error output cluster

Write

A vi that allows for writing a high or low to the output pin specified by the Create ID vi.

Inputs and Outputs

Name	I/O	Attribute
Digital Input and Output in	Input	The input cluster from Create ID
Control	Input	The boolean value to write to the digital pin
error in (no error)	Input	The error input cluster
Digital Input and Output out	Output	The output cluster to go to Delete ID
error out	Output	The error output cluster

Digital Output Example

This example will turn on an LED connected to digital port 12 on the VMX.

Digital Input Example

This example will read a digital signal from a Pushbutton connected to digital port 11 on the VMX.