LabVIEW
Access to VISA control from another VI
@crossrulz wrote:
The best way would be to pass the reference into the subVI via the connector pane.
For scalability, you could use a typdef'd cluster containing all the ref's you're interested in - in this case, just one. That way, you can add refs to the typedef'd cluster and you won't break your sub-VI. To use it, it's just a matter of unbundling the ref's inside the sub-VI. Very useful if you're building a complicated interface.
@Echoman wrote:
I have a VISA control (com ports) in a sub vi and I am trying access this control from the front panel of the main VI. What is the best way to do this?
I would avoid that......................
Being a huge fan of "Code it Once" and a guy who hate looking all over a large project to debug I allways create a "Resource Module" (A special Action Engine the encapulates All I/O between LabVIEW and Anything else)
Of course, you should read Ben's Famous Community nugget
The callers need to know nothing about the RM's private data since it is only used to do I/O with this device so it is the not even wired
A quickie example is shown below: as well as a example use.
