real-time trend

[korst]

hi guys,
i would like to know whether there is any option how to switch between variables that are currently being plotted to my real time trend, while the VI is running. because i have too much variables to monitor and there is no need to show all of them at the same time, but the switching itself is important.
thanks for your help
korst

[Robst]

Hi Korst:

A way to choose between a set of signals is using a menu Ring and a Case Structure. I've attached a simple VI that simulates 5 signals and lets you choose which one of them you can monitor. Of course it can be improved in many ways, but it can serve as a basis.

Hope this helps!, and if you need more help please tell me.

Robst.

[Henrik_Volkers]

You can use the active plot/ plot color properties of the graph / chart and set the color of the currently unwanted plots to transparent.

[Doug M]

korst,

In LabVIEW 8.2, the Real-Time Trend Express VI has a Shared Variables List input, which allows you to programmatically change the shared variables shown on the trend. In LabVIEW 8.0 this input is not present, but if you right-click on the Express VI on the block diagram and select Open Front Panel, an array of shared variable references will be shown being fed into the subVI which you can then change in the same way.