04-03-2026 02:06 PM
This is a Question involving TestStand 2014, Labview 2015.
I am working on a modification to an older project that determines how a test has passed or failed. Currently the file, called 'Test Complete.vi' does not have an input buffer. Instead it reads the location of a data file, and then uses that location to determine how to figure out whether a test has passed or failed via a Case Structure.
I am trying to change this so that TestStand passes in what kind of test is being run via an InBuf of type String. This then would be passed into the Case Structure which would Read 'Test 1' as the Input Buffer and set the case Structure to Case 1. I have added an Input Buffer into the Labview file, and connected it to the Case Structure, as well as changed the Case Structure's selector to be connected to the Input Buffer.
However, something does not appear to be working. In TestStand, under Step Settings -> Module there is no Input Buffer listed as a Parameter Name, and I can't figure out a way to add it. Additionally, to the right there is a small diagram showing inputs and outputs of the VI. It shows a Sequence Context input, which is correct, but not the input buffer. I can see on other VIs that get called that the Input Buffer will show up if it is functioning properly.
Thanks.
Solved! Go to Solution.
04-04-2026 06:58 AM
You need a corresponding control on the VI front panel and it needs to be connected to the connector pane. When you reload the prototype in TestStand it should be there.
04-06-2026 06:33 AM
Thank you.
Like I said, this was a Legacy piece of software, so I haven't made a VI myself before. I didn't realize the Connector Pane was even a thing, so hadn't edited it.