I'd have to see the code to see exactly what they are doing with it. But Property Nodes can do all kinds of fun things. They set/get the properties of a control/indicator, VI, VISA Session, DAQmx Task, DAQmx Channel, etc. They are often abused to set the value to a control/indicator, which is not a proper way of using them. The most common thing I do with property nodes is to disable and gray out a control to keep users from playing with a control when I don't won't them to.
↧