LabView Cluster Passing

[GeekGrok]

Hello,

I am creating a TestStand sequence that is calling a LabView Action Step. In the LabView Action Step I am trying to pass a rather large data cluster from the LabView VI into TestStand. When I try to create a new custom data type from the "Create Custom Data Type From Cluster" window, I get an error message, but the custom data type is created. However when I look at this data type in the LabView ACtion step, I see that not all of the data parameters in the custom data type exist (as they do in the LabView cluster). THis VI also passes a second cluster, which is much smaller then the first, and I can successfully create a TestStand data type and pass the cluster information from the VI to TestStand. I cannot do this with the larger cluster in this same VI.

My question: Is there a limit to the size of a cluster that can be passed/created between a LabView VI and a TestStand data type?

Thank you in advance for your help.

Newbie

P.S. I am using LabView 7.0 and TestStand 3.0 running on Windows 2000.

[dowNow]

You might make sure all your LabVIEW types are boolean, numeric and string only.

FYI there is a bug when passing a LabVIEW cluster that is a LabVIEW typedef to TestStand. If you run into that it is fixed with LV 7.1.

dn

[JoseHdz]

Can you please post the VI with the cluster? I would like to see the cluster and figure out why TestStand is giving an error when creating the custom data type.

Regards,
Jose

[GeekGrok]

Dn and Jose,

Thank you for your response. I did figure out the problem thanks to dn's response. IT appears that the LabView VI cluster was using a non-standard naming convention (from a TestStand perspective) for naming some of the data parameters within the cluster. A number of parameters were named with a simple number (i.e. "0", "1", etc.). (Since I did not cerate this VI, I have no idea why the person who created the VI decided to use such a naming convention for some of the data parameters in the cluster.) According to TestStand requirements, a data variable NAME cannot consist of just numberic characters (i.e. "0", "1", ...). Once I changed the name of the data parameters in the VI cluster to a more standard format (i.e. changed "0" to "P0"), I was able to automatically create a container in TestStand that matched the VI cluster.

Thanx,
Jim