SVGHMI: HMI is not speculating on PLC variable update anymore when sending new variable value.
HMI variable cache in JS was changed in advance for more responsive behaviour when updating a HMI tree variable. This was leading to display value different from hmi tree variable in case the expected update did not happen because PLC program did revert it.
<?xml version='1.0' encoding='utf-8'?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xsi:schemaLocation="http://www.plcopen.org/xml/tc6_0201">
<fileHeader companyName="beremiz" productName="Beremiz" productVersion="0.0" creationDateTime="2008-12-14T16:21:19"/>
<contentHeader name="Beremiz SVGUI Test" modificationDateTime="2018-09-26T13:18:53">
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<types>
<dataTypes/>
<pous>
<pou name="main_pytest" pouType="program">
<interface>
<localVars>
<variable name="counter">
<type>
<INT/>
</type>
</variable>
<variable name="Start_Stop">
<type>
<derived name="Button"/>
</type>
</variable>
<variable name="Counter_TextCtrl">
<type>
<derived name="TextCtrl"/>
</type>
</variable>
<variable name="State_LedCtrl">
<type>
<derived name="Led"/>
</type>
</variable>
</localVars>
</interface>
<body>
<FBD>
<block localId="32" width="80" height="110" typeName="ADD" executionOrderId="0">
<position x="649" y="285"/>
<inputVariables>
<variable formalParameter="EN">
<connectionPointIn>
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<connection refLocalId="5">
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<connectionPointIn>
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<expression>counter</expression>
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<position x="55" y="333"/>
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<expression>BOOL#1</expression>
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<connectionPointOut>
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<expression>'stop_back'</expression>
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<expression>'stop_sele'</expression>
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<connectionPointOut>
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<expression>'text_counter'</expression>
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<position x="692" y="612"/>
<connectionPointOut>
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<expression>'led_stop'</expression>
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<position x="691" y="648"/>
<connectionPointOut>
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<expression>'led_start'</expression>
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<variable formalParameter="OUT">
<connectionPointOut>
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</block>
<block localId="92" width="187" height="230" typeName="Button" instanceName="Start_Stop" executionOrderId="0">
<position x="201" y="593"/>
<inputVariables>
<variable formalParameter="back_id">
<connectionPointIn>
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<connection refLocalId="41">
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<position x="141" y="634"/>
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<variable formalParameter="toggle">
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<variable formalParameter="set_state">
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<variable formalParameter="state_in">
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<position x="21" y="703"/>
<connectionPointOut>
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<expression>BOOL#1</expression>
</inVariable>
<block localId="94" width="100" height="145" typeName="TextCtrl" instanceName="Counter_TextCtrl" executionOrderId="0">
<position x="876" y="774"/>
<inputVariables>
<variable formalParameter="back_id">
<connectionPointIn>
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<connection refLocalId="46">
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<variable formalParameter="set_text">
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<expression>BOOL#1</expression>
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<variable formalParameter="back_id">
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<connection refLocalId="51">
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</variable>
<variable formalParameter="sele_id">
<connectionPointIn>
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<connection refLocalId="52">
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<position x="811" y="663"/>
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<variable formalParameter="state_in">
<connectionPointIn>
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<connection refLocalId="2">
<position x="876" y="699"/>
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<position x="280" y="265"/>
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</variable>
<variable formalParameter="IN2">
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<connection refLocalId="1">
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<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
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</block>
<connector name="CLOCK" localId="97" height="30" width="90">
<position x="345" y="250"/>
<connectionPointIn>
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<connection refLocalId="96" formalParameter="OUT">
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<position x="280" y="265"/>
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</connector>
<connector name="COUNT" localId="98" height="30" width="90">
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<connectionPointIn>
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<connection refLocalId="92" formalParameter="state_out">
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<position x="388" y="634"/>
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</connectionPointIn>
</connector>
<continuation name="COUNT" localId="2" height="30" width="120">
<position x="691" y="684"/>
<connectionPointOut>
<relPosition x="120" y="15"/>
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<inVariable localId="4" height="35" width="85" executionOrderId="0" negated="false">
<position x="419" y="879"/>
<connectionPointOut>
<relPosition x="85" y="17"/>
</connectionPointOut>
<expression>counter</expression>
</inVariable>
<continuation name="COUNT" localId="5" height="30" width="90">
<position x="504" y="305"/>
<connectionPointOut>
<relPosition x="90" y="15"/>
</connectionPointOut>
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<block localId="99" width="80" height="110" typeName="AND" executionOrderId="0">
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<inputVariables>
<variable formalParameter="IN1">
<connectionPointIn>
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<connection refLocalId="39">
<position x="199" y="350"/>
<position x="144" y="350"/>
</connection>
</connectionPointIn>
</variable>
<variable formalParameter="IN2">
<connectionPointIn>
<relPosition x="0" y="87"/>
<connection refLocalId="6">
<position x="199" y="395"/>
<position x="144" y="395"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="80" y="42"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<continuation name="CLOCK" localId="6" height="30" width="90">
<position x="54" y="380"/>
<connectionPointOut>
<relPosition x="90" y="15"/>
</connectionPointOut>
</continuation>
<block localId="100" width="125" height="45" typeName="BOOL_TO_INT" executionOrderId="0">
<position x="349" y="318"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
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<connection refLocalId="99" formalParameter="OUT">
<position x="349" y="350"/>
<position x="279" y="350"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="125" y="32"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<continuation name="CLOCK" localId="3" height="30" width="122">
<position x="693" y="840"/>
<connectionPointOut>
<relPosition x="122" y="15"/>
</connectionPointOut>
</continuation>
<comment localId="101" height="197" width="1001">
<position x="11" y="12"/>
<content>
<xhtml:p><![CDATA[This example shows how IEC program in PLC can interact with web interface.
svgui is extensions to build web interface to PLC. It has *integrated* web-server. So it's NOT necessary to install Apache, lighttpd or nginx for that!!!
As the program is running in PLC, web UI will be available at http://localhost:8009/.
Web interface is build as SVG file in Inkscape. To edit SVG file click 'Inkscape' button in 0x: svgui extension.
Inkscape is a free and open-source vector graphics editor. It's not part of Beremiz and needs to be installed separately.
]]></xhtml:p>
</content>
</comment>
<comment localId="102" height="126" width="641">
<position x="17" y="441"/>
<content>
<xhtml:p><![CDATA[In this example basic elements like 'Button', 'Led' and 'Text' are used.
Back_id and sele_id inputs of these blocks are IDs of graphic primitives in SVG file.
This is the way how elements in SVG are bound to elements in PLC program.
You can find out or edit these IDs in Inkscape.]]></xhtml:p>
</content>
</comment>
</FBD>
</body>
</pou>
</pous>
</types>
<instances>
<configurations>
<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>
</configurations>
</instances>
</project>