OPC-UA client: "static" class was forgotten for open62541 client structure preventing multiple client.
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<comment localId="101" height="115" width="680">
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<xhtml:p><![CDATA[This example shows how IEC program in PLC can interact with UI created using wxGlade.
"WxGlade GUI" is extension to build user interface for PLC using wxGlade.
To edit user interface click on "WxGlade" icon in extension settings.]]></xhtml:p>
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