SVGHMI: Fixed sending HMI_REAL to PLC. Added a svghmi_real test that illustrates using printf style formating in HMI:Display to control precision of Float number display.
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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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