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Datasocket stops sending data to OPC Server

I have been having a longstanding issue using Datasocket and LabVIEW 6.1 to communicate to a KEPWare KEPServerEX. I have resolved most of the issues, save one, and would like some input on what might be happening.

Most of the time the software works correctly, sending a boolean watchdog as well as about 10 other tags (most are never updated; 2-4 can be updated at 1s max). There are also about 20 tags which I must read information from the server.

The issue is that somewhere around once a week to once a month for 30 seconds or so the software stops updating the watchdog that I send to the OPC Server, then all of the sudden starts updating again by itself. I have already installed the LabVIEW 7.1 Run-time engine to get the most updated version of Datasocket, as well as using the older compatibility VIs that are included with LabVIEW 6.1.

I am using the WriteAutoUpdate and the ReadAutoUpdate modes for the datasocket references. Has anyone had any similiar problems with Datasocket and OPC?
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Sirin,

How do you observe this issue? Is there an error??..do you have a timeout indicator??

Also...have you looked at network spikes that may be happening with the DSS drops??

-Brett
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