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OPC UA toolkit can't get value

I have problem with one specific node called ServerStatus, where value is little bit more complex than just one string or numeric value. I always get bad status and value is empty.

 

Some simple values are easy to get. But I need to get these complex values too.

 

OPC_ua_value.png

 

Do anybody have experience with this? Do I need to improve structure more or change node IDs?

 

Thank you in advance for help.

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