Stacking probes on a single wire

[Daklu]

Sometimes I want to put multiple probes on a single wire.  For example, in loops I like to put both a history probe and a conditional probe on the same wire while debugging.  Stackable probes would let me create small probes with specific functionality and then combine them to fit my immediate need without requiring me to create a new probe with the combined functionality that will be used only once or twice.

[tst]

I'm kind of split on this. I do occasionally have need for this (although not that often), but I like that placing a probe on a probed wire brings to the existing probe. NI would need to come up with some option to handle this. Maybe a toggle in the probe watch window called "allow multiple probes per wire"?

[PhillipBrooks]

Would multiple probes for a single wire require LabVIEW to make a copy of the data for each probe?

[Intaris]

@Philip.  Good Question!

[AristosQueue (NI)]

> Would multiple probes for a single wire require LabVIEW to make a copy of the data for each probe?

Depends upon what you did on the diagram of those VIs. If the array you're probing gets modified, then the custom probe is going to say "I need my own copy of the data" when we call it. If all the probes just displayed the data, we could almost certainly avoid making multiple copies.

[Daklu]

@tst

"I like that placing a probe on a probed wire brings to the existing probe."

No reason that has to change.  I imagine adding stacked probes to a wire would be a right click option anyway since LV has no way of knowing which of the available probes you want to add.

[altenbach]

Five year old thread with not a single vote???

I often would like to have multiple probes per wire (without having to create a custom probe!).

For example if sometimes probe 1D arrays with a waveform graph probe for a general overview how the data looks like, but at the same time I also want to see the actual numeric array data (as in a conventional conditional array probe).

It is almost impossible to tell if the first point of a long array is e.g. NaN by only looking at the graph probe, so I want to change quickly between the probes during debugging to change the view.

[Darren]

Any idea that has received less than 4 kudos within 4 years after posting will be automatically declined.

[X.]

kudo from me