An instance of this function block type displays the process variable
and provides user input of the set point
for a closed-loop controller. The values of these variables are
treated as percent of full scale.
input provides a top-centered label for the faceplate (
in this example).
output provides for user control of the controller mode via the Auto/Manual
The input and output variables are defined as shown below.
configuration for an example of the usage of an instance of this