SVGHMI - prepare page with cached data when switching. This prevents values that do not change and that was already subscribed in previous page from keeping undefined.
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<contentHeader name="Beremiz wxHMI test" modificationDateTime="2017-06-05T14:01:40">
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<expression>INT#1</expression>
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<comment localId="101" height="115" width="680">
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<content>
<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>
</content>
</comment>
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<configuration name="config">
<resource name="res_pytest">
<task name="pytest_task" interval="t#100ms" priority="0"/>
<pouInstance name="pytest_instance" typeName="main_pytest"/>
</resource>
</configuration>
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