Error Code 91, Reference.

[winterishere8]

I have a two 1-D arrays that I bundle and input to a XY graph in a subvi. I am using control reference to show the updates on the main VI.

For some reason I get an error code 91. Can some one explain what is the mistake.

I've attached a picture. Thanks !

[tst]

Error 91 means " The data type of the variant is not compatible with the data type wired to the type input", so I guess your graph isn't a multiple plot XY graph. When you wire a wire like that into a graph, it will change the graph to accept it (you can see the terminal becoming pink), but unless you did that, the graph is probably still in it's original type. The solution - wire such a construct into the graph's terminal. If this doens't help, post your actual code.

[winterishere8]

Here is a sample.

[tst]

Sorry, no 8.0 yet.

[Dennis_Knutson]

tst was correct about the data type. Before you create the reference, wire in the type of data you want to display. In your case, you should create 2 different arrays, bundle them together, and wire that to the graph. Then, when you create the reference and use it in the subVI, the data type will match - you will not have a value property with a variant input. If you want to change the data in the subVI to a multiplot XY graph, you would have to repeat the process.

[winterishere8]

Thanks ! That works.

[sujatha7]

I too face the same problem but in my case, I am creating the XY graph using scripting, so i can no where give the input format. Is there any way I can resolve it?