SVGHMI: Update Button widget to class declaration, and add a button widget in tests/svghmi.
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<xhtml:p><![CDATA[Always consume some energy]]></xhtml:p>
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<xhtml:p><![CDATA[Simple sensor simulation]]></xhtml:p>
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<xhtml:p><![CDATA[Climate control]]></xhtml:p>
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<xhtml:p><![CDATA[This examples shows how to work with BACnet extension.
Extensions requires native BACnet stack to be installed nearby Beremiz.
Following directory structure is expected:
<Parent directory>
"beremiz"
"BACnet"
If library is installed elsewhere, then place corresponding paths
in CFLAGS/LDFLAGS in project settings.
For GNU/Linux to install BACnet library in parent directory run following commands:
$ svn checkout https://svn.code.sf.net/p/bacnet/code/trunk/bacnet-stack/ BACnet
$ cd BACnet
$ make
After that BACnet extension is ready to be used in Beremiz projects.
BACnet stack implementation contains a lot of test tools. They could be useful during
debugging and BACnet investigation. See "BACnet/bin/readme.txt" for more information about them.]]></xhtml:p>
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<xhtml:p><![CDATA[(* pseudo-random variations *)
TON0(IN := TRUE, PT := T#3120s);
IF TON0.Q THEN
TON0(IN := FALSE);
END_IF;
seconds := TIME_TO_INT(TON0.ET);
BaseVal := (MaxVal + MinVal)/2.0;
VarVal := (MaxVal-MinVal)*INT_TO_REAL((seconds MOD PeriodSeconds) - (PeriodSeconds/2))/INT_TO_REAL(PeriodSeconds);
Out := BaseVal + VarVal;]]></xhtml:p>
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