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Polling method isn't retrieving data

Hi, 

I have created a vi project that I am trying to link to my data dashboard app on my ipad. I've linked my VI's correctly through a web method and I've polled my indicators and called my controls. I see the different controls and indicators and I am able to choose them correctly. However, the data isn't showing and an error comes up saying that the data cannot be retrieved. Does anyone know why this might be?

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Hi George,

 

What data types are you using for the controls and indicators? Are you able to interact with the web method from a browser on the development computer?

 

If so, can you post the specific error/warning you are seeing?

 

Thanks!

 

Zach P.

Staff Software Engineer | LabVIEW R&D | National Instruments
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Hi Zach,

 

Can you explain to me how to test the data from a browser?

 

The controls I have are: one drop down ring string menu, 2 sliders and 2 knobs.

The indicators I have are 4 knob meters, 1 thermometer, 2 gauges, and 2 numeric indicators. I've attached the project for more clarification!

 

 

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You can find more info on accessing web services here:

 

https://www.ni.com/docs/en-US/bundle/labview/page/tutorial-creating-and-publishing-a-labview-web-ser...

 

Data Dashboard specifically needs XML output format for accessing terminals:

 

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA03q000000x1rYCAQ&l=en-US

 

You should be able to type in the web service address [IP address]:[port]/[Web Service Name] and see the XML version of the web service. 

 

 

 

 

Zach P.

Staff Software Engineer | LabVIEW R&D | National Instruments
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