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Error writing variant data to network published shared variable

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Within my real-time project, on the host VI running on my Windows PC, I am attempting to write to a number of network-published shared variables.  All of these write operations are successful (meaning that I can subsequently read them on the RT target, a cRIO-9012), with the exception of those network-published shared variables with the data type defined as variant.  I'm not quite sure what is causing the problem.

 

I am taking the array of clusters shown here...

 

STS code 5.png

 

...and passing it through a "To Variant" VI, and then subsequently writing to the shared variable (data type: variant).  Diagnosing the failure of the real-time VI to read data, I found that the shared variable write on the host VI was producing the following error:

 

Error -2147467259 occurred at Shared Variable in PC host TTS CTRL.vi

Possible reason(s):

LabVIEW:  (Hex 0x80004005) Unspecified error.
=========================
NI System Configuration:  (Hex 0x80004005) Miscellaneous operation failure.

This error or warning occurred while writing the following Shared Variable:
\\My Computer\Network Shared Variables\TC Group Assignment Array - Network
\\128.144.90.143\Network Shared Variables\TC Group Assignment Array - Network

 

...where 128.144.90.143 is the IP address of the PC.

 

Any thoughts?

 

Sean

 


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