beremiz

cleanup traffic lights example

2016-10-20, Andrey Skvortsov
f1840d27823d
Parents d329cc88d307
Children 33e03a4b3075
cleanup traffic lights example
2 files changed, 248 insertions(+), 360 deletions(-)
  • +230 -355
    tests/traffic_lights/plc.xml
  • +18 -5
    tests/traffic_lights/svgui-0@svgui/pyfile.xml
    • --- a/tests/traffic_lights/plc.xml Wed Oct 19 16:32:10 2016 +0300
    +++ b/tests/traffic_lights/plc.xml Thu Oct 20 14:45:11 2016 +0300
    @@ -1,7 +1,7 @@
    <?xml version='1.0' encoding='utf-8'?>
    <project xmlns="http://www.plcopen.org/xml/tc6_0201" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xhtml="http://www.w3.org/1999/xhtml" xsi:schemaLocation="http://www.plcopen.org/xml/tc6_0201">
    - <fileHeader companyName="Unknown" productName="Unnamed" productVersion="1" creationDateTime="2012-09-04T16:16:33"/>
    - <contentHeader name="traffic_lights" modificationDateTime="2013-12-06T12:19:16">
    + <fileHeader companyName="Beremiz" productName="Unnamed" productVersion="1" creationDateTime="2012-09-04T16:16:33"/>
    + <contentHeader name="traffic_lights" modificationDateTime="2016-10-20T13:08:53">
    <coordinateInfo>
    <fbd>
    <scaling x="0" y="0"/>
    @@ -405,8 +405,8 @@
    <connection refLocalId="39">
    <position x="569" y="31"/>
    <position x="569" y="11"/>
    - <position x="1016" y="11"/>
    - <position x="1016" y="1151"/>
    + <position x="980" y="11"/>
    + <position x="980" y="1151"/>
    <position x="776" y="1151"/>
    <position x="776" y="1097"/>
    </connection>
    @@ -512,7 +512,7 @@
    <reference name="GREEN_LIGHT"/>
    </action>
    </actionBlock>
    - <actionBlock localId="9" width="219" height="125">
    + <actionBlock localId="9" width="232" height="125">
    <position x="711" y="250"/>
    <connectionPointIn>
    <relPosition x="0" y="15"/>
    @@ -554,7 +554,7 @@
    <relPosition x="37" y="17"/>
    </connectionPointOutAction>
    </step>
    - <actionBlock localId="11" width="203" height="103">
    + <actionBlock localId="11" width="235" height="103">
    <position x="710" y="413"/>
    <connectionPointIn>
    <relPosition x="0" y="15"/>
    @@ -696,7 +696,7 @@
    <relPosition x="148" y="13"/>
    </connectionPointOutAction>
    </step>
    - <actionBlock localId="19" width="246" height="110">
    + <actionBlock localId="19" width="236" height="110">
    <position x="708" y="573"/>
    <connectionPointIn>
    <relPosition x="0" y="15"/>
    @@ -731,7 +731,11 @@
    <relPosition x="10" y="2"/>
    </connectionPointOut>
    <condition>
    - <reference name="STOP"/>
    + <inline name="">
    + <ST>
    + <xhtml:p><![CDATA[NOT SWITCH_BUTTON]]></xhtml:p>
    + </ST>
    + </inline>
    </condition>
    </transition>
    <jumpStep localId="21" height="13" width="12" targetName="Standstill">
    @@ -796,7 +800,7 @@
    <relPosition x="148" y="13"/>
    </connectionPointOutAction>
    </step>
    - <actionBlock localId="25" width="238" height="110">
    + <actionBlock localId="25" width="233" height="110">
    <position x="708" y="748"/>
    <connectionPointIn>
    <relPosition x="0" y="15"/>
    @@ -831,7 +835,12 @@
    <relPosition x="10" y="2"/>
    </connectionPointOut>
    <condition>
    - <reference name="STOP"/>
    + <connectionPointIn>
    + <connection refLocalId="48">
    + <position x="400" y="858"/>
    + <position x="290" y="858"/>
    + </connection>
    + </connectionPointIn>
    </condition>
    </transition>
    <jumpStep localId="27" height="13" width="12" targetName="Standstill">
    @@ -896,7 +905,7 @@
    <relPosition x="56" y="13"/>
    </connectionPointOutAction>
    </step>
    - <actionBlock localId="31" width="154" height="110">
    + <actionBlock localId="31" width="227" height="110">
    <position x="709" y="931"/>
    <connectionPointIn>
    <relPosition x="0" y="15"/>
    @@ -1112,6 +1121,92 @@
    </variable>
    </outputVariables>
    </block>
    + <comment localId="45" height="681" width="645">
    + <position x="1021" y="21"/>
    + <content>
    + <xhtml:p><![CDATA[*** Description of SFC action qualifiers ***
    +
    +N : non-stored - The action code body is executed or the Boolean variable is set as
    +long as the step is active.
    +
    +R : overriding reset &#8211; When the step has previously been executed with the S
    +(including DS, DS, and SL) qualifier, the R qualifier will stop the execution of the
    +code or reset the Boolean variable.
    +
    +S : set (stored) - The action code body is executed or the Boolean variable is set.
    +This state is stored as soon as the step becomes active. It can only be reset
    +explicitly by associating the same action to a different step using the qualifier 'R'.
    +
    +L : time limited - The action code body is executed or the Boolean variable is set as
    +long as the step is active but maximal for the fixed time interval.
    +
    +D : time delayed - The action code body is executed or the Boolean variable is set
    +after the fixed delay time has elapsed. The action remains active as long as the step
    +is active. If the step is active shorter than the fixed delay time the action does not
    +become active.
    +
    +P : pulse - As soon as the step is active the action code body is executed or the
    +Boolean variable is set for one operating cycle. (Note: The code body will then
    +execute for one additional operating cycle with the Step.X variable FALSE.)
    +
    +SD : stored and time delayed - the action code body is executed or the Boolean
    +variable is stored and set when the fixed delay time has elapsed after the step
    +activation, even if the step becomes inactive. The action remains active until it is
    +reset. If the step is active shorter than the fixed delay time the action becomes active
    +anyway.
    +
    +DS : delayed and stored - The action code body is executed or the Boolean variable
    +is set when the fixed delay time has elapsed after the step activation. The action
    +remains active until it is reset. If the step is active shorter than the fixed delay time
    +the action does not become active.
    +
    +SL : stored and time limited - The action code body is executed or the Boolean
    +variable is set and stored for a fixed time interval as soon as the step is active. If the
    +step is active shorter than the time interval the action is active for the whole time
    +interval anyway. If the action is reset during the time interval the action becomes
    +inactive as soon as the action is reset.
    +]]></xhtml:p>
    + </content>
    + </comment>
    + <comment localId="46" height="160" width="375">
    + <position x="8" y="326"/>
    + <content>
    + <xhtml:p><![CDATA[Conditions can be written in any IEC 61131-3 language.
    +They can be implemented in defferent ways:
    +- reference to external implementation;
    +- inline implementation;
    +- written in FBD or LD on SFC diagram and connected to the condition.
    +
    +See below examples of all these types.]]></xhtml:p>
    + </content>
    + </comment>
    + <leftPowerRail localId="47" height="40" width="3">
    + <position x="189" y="838"/>
    + <connectionPointOut formalParameter="">
    + <relPosition x="3" y="20"/>
    + </connectionPointOut>
    + </leftPowerRail>
    + <contact localId="48" height="15" width="21" negated="true">
    + <position x="269" y="850"/>
    + <connectionPointIn>
    + <relPosition x="0" y="8"/>
    + <connection refLocalId="47">
    + <position x="269" y="858"/>
    + <position x="192" y="858"/>
    + </connection>
    + </connectionPointIn>
    + <connectionPointOut>
    + <relPosition x="21" y="8"/>
    + </connectionPointOut>
    + <variable>SWITCH_BUTTON</variable>
    + </contact>
    + <comment localId="13" height="66" width="375">
    + <position x="9" y="28"/>
    + <content>
    + <xhtml:p><![CDATA[
    +Sequential function chart (SFC) is commonly used to describe state machines.]]></xhtml:p>
    + </content>
    + </comment>
    </SFC>
    </body>
    </pou>
    @@ -1158,57 +1253,19 @@
    <derived name="Led"/>
    </type>
    </variable>
    - <variable name="TEST_DATE">
    - <type>
    - <DATE/>
    - </type>
    - <initialValue>
    - <simpleValue value="D#2012-12-03"/>
    - </initialValue>
    - </variable>
    - <variable name="RESULT_STRING">
    - <type>
    - <string/>
    - </type>
    - </variable>
    - <variable name="TEST_STRING">
    - <type>
    - <string/>
    - </type>
    - <initialValue>
    - <simpleValue value="TOTO"/>
    - </initialValue>
    - </variable>
    - <variable name="TEST_ULINT">
    - <type>
    - <ULINT/>
    - </type>
    - </variable>
    - <variable name="RESULT_INT">
    - <type>
    - <INT/>
    - </type>
    - </variable>
    - <variable name="RESULT_BYTE">
    - <type>
    - <BYTE/>
    - </type>
    - </variable>
    </localVars>
    </interface>
    <body>
    <FBD>
    - <block localId="1" width="349" height="836" typeName="traffic_light_sequence" instanceName="trafic_light_sequence0">
    - <position x="470" y="127"/>
    + <block localId="1" width="349" height="836" typeName="traffic_light_sequence" instanceName="trafic_light_sequence0" executionOrderId="0">
    + <position x="470" y="406"/>
    <inputVariables>
    <variable formalParameter="SWITCH_BUTTON">
    <connectionPointIn>
    <relPosition x="0" y="101"/>
    <connection refLocalId="2" formalParameter="state_out">
    - <position x="470" y="228"/>
    - <position x="401" y="228"/>
    - <position x="401" y="177"/>
    - <position x="333" y="177"/>
    + <position x="470" y="507"/>
    + <position x="333" y="507"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1216,8 +1273,10 @@
    <connectionPointIn>
    <relPosition x="0" y="264"/>
    <connection refLocalId="3" formalParameter="state_out">
    - <position x="470" y="391"/>
    - <position x="335" y="391"/>
    + <position x="470" y="670"/>
    + <position x="402" y="670"/>
    + <position x="402" y="721"/>
    + <position x="335" y="721"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1251,15 +1310,15 @@
    </variable>
    </outputVariables>
    </block>
    - <block localId="2" width="143" height="183" typeName="Button" instanceName="SwitchButton">
    - <position x="190" y="141"/>
    + <block localId="2" width="143" height="183" typeName="Button" instanceName="SwitchButton" executionOrderId="0">
    + <position x="190" y="471"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="36"/>
    <connection refLocalId="5">
    - <position x="190" y="177"/>
    - <position x="136" y="177"/>
    + <position x="190" y="507"/>
    + <position x="136" y="507"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1267,8 +1326,8 @@
    <connectionPointIn>
    <relPosition x="0" y="68"/>
    <connection refLocalId="6">
    - <position x="190" y="209"/>
    - <position x="136" y="209"/>
    + <position x="190" y="539"/>
    + <position x="136" y="539"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1276,8 +1335,8 @@
    <connectionPointIn>
    <relPosition x="0" y="100"/>
    <connection refLocalId="4">
    - <position x="190" y="241"/>
    - <position x="136" y="241"/>
    + <position x="190" y="571"/>
    + <position x="136" y="571"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1301,15 +1360,15 @@
    </variable>
    </outputVariables>
    </block>
    - <block localId="3" width="143" height="198" typeName="Button" instanceName="PedestrianButton">
    - <position x="192" y="354"/>
    + <block localId="3" width="143" height="198" typeName="Button" instanceName="PedestrianButton" executionOrderId="0">
    + <position x="192" y="684"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="37"/>
    <connection refLocalId="7">
    - <position x="192" y="391"/>
    - <position x="159" y="391"/>
    + <position x="192" y="721"/>
    + <position x="159" y="721"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1317,8 +1376,8 @@
    <connectionPointIn>
    <relPosition x="0" y="72"/>
    <connection refLocalId="8">
    - <position x="192" y="426"/>
    - <position x="159" y="426"/>
    + <position x="192" y="756"/>
    + <position x="159" y="756"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1347,50 +1406,50 @@
    </variable>
    </outputVariables>
    </block>
    - <inVariable localId="4" height="27" width="18">
    - <position x="118" y="228"/>
    + <inVariable localId="4" height="27" width="18" executionOrderId="0" negated="false">
    + <position x="118" y="558"/>
    <connectionPointOut>
    <relPosition x="18" y="13"/>
    </connectionPointOut>
    <expression>1</expression>
    </inVariable>
    - <inVariable localId="5" height="27" width="105">
    - <position x="31" y="164"/>
    + <inVariable localId="5" height="27" width="105" executionOrderId="0" negated="false">
    + <position x="31" y="494"/>
    <connectionPointOut>
    <relPosition x="105" y="13"/>
    </connectionPointOut>
    <expression>'SWITCH_OFF'</expression>
    </inVariable>
    - <inVariable localId="6" height="27" width="105">
    - <position x="31" y="196"/>
    + <inVariable localId="6" height="27" width="105" executionOrderId="0" negated="false">
    + <position x="31" y="526"/>
    <connectionPointOut>
    <relPosition x="105" y="13"/>
    </connectionPointOut>
    <expression>'SWITCH_ON'</expression>
    </inVariable>
    - <inVariable localId="7" height="27" width="137">
    - <position x="22" y="378"/>
    + <inVariable localId="7" height="27" width="137" executionOrderId="0" negated="false">
    + <position x="22" y="708"/>
    <connectionPointOut>
    <relPosition x="137" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_OFF'</expression>
    </inVariable>
    - <inVariable localId="8" height="27" width="137">
    - <position x="22" y="413"/>
    + <inVariable localId="8" height="27" width="137" executionOrderId="0" negated="false">
    + <position x="22" y="743"/>
    <connectionPointOut>
    <relPosition x="137" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_ON'</expression>
    </inVariable>
    - <block localId="9" width="115" height="133" typeName="Led" instanceName="RedLight">
    - <position x="1057" y="116"/>
    + <block localId="9" width="115" height="133" typeName="Led" instanceName="RedLight" executionOrderId="0">
    + <position x="1057" y="395"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="38"/>
    <connection refLocalId="10">
    - <position x="1057" y="154"/>
    - <position x="1010" y="154"/>
    + <position x="1057" y="433"/>
    + <position x="1010" y="433"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1398,8 +1457,8 @@
    <connectionPointIn>
    <relPosition x="0" y="75"/>
    <connection refLocalId="11">
    - <position x="1057" y="191"/>
    - <position x="1010" y="191"/>
    + <position x="1057" y="470"/>
    + <position x="1010" y="470"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1407,8 +1466,8 @@
    <connectionPointIn>
    <relPosition x="0" y="112"/>
    <connection refLocalId="1" formalParameter="RED_LIGHT">
    - <position x="1057" y="228"/>
    - <position x="819" y="228"/>
    + <position x="1057" y="507"/>
    + <position x="819" y="507"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1416,29 +1475,29 @@
    <inOutVariables/>
    <outputVariables/>
    </block>
    - <inVariable localId="10" height="27" width="79">
    - <position x="931" y="141"/>
    + <inVariable localId="10" height="27" width="79" executionOrderId="0" negated="false">
    + <position x="931" y="420"/>
    <connectionPointOut>
    <relPosition x="79" y="13"/>
    </connectionPointOut>
    <expression>'RED_OFF'</expression>
    </inVariable>
    - <inVariable localId="11" height="27" width="79">
    - <position x="931" y="178"/>
    + <inVariable localId="11" height="27" width="79" executionOrderId="0" negated="false">
    + <position x="931" y="457"/>
    <connectionPointOut>
    <relPosition x="79" y="13"/>
    </connectionPointOut>
    <expression>'RED_ON'</expression>
    </inVariable>
    - <block localId="12" width="115" height="133" typeName="Led" instanceName="OrangeLight">
    - <position x="1058" y="279"/>
    + <block localId="12" width="115" height="133" typeName="Led" instanceName="OrangeLight" executionOrderId="0">
    + <position x="1058" y="558"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="38"/>
    <connection refLocalId="13">
    - <position x="1058" y="317"/>
    - <position x="1010" y="317"/>
    + <position x="1058" y="596"/>
    + <position x="1010" y="596"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1446,8 +1505,8 @@
    <connectionPointIn>
    <relPosition x="0" y="75"/>
    <connection refLocalId="14">
    - <position x="1058" y="354"/>
    - <position x="1010" y="354"/>
    + <position x="1058" y="633"/>
    + <position x="1010" y="633"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1455,8 +1514,8 @@
    <connectionPointIn>
    <relPosition x="0" y="112"/>
    <connection refLocalId="1" formalParameter="ORANGE_LIGHT">
    - <position x="1058" y="391"/>
    - <position x="819" y="391"/>
    + <position x="1058" y="670"/>
    + <position x="819" y="670"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1464,29 +1523,29 @@
    <inOutVariables/>
    <outputVariables/>
    </block>
    - <inVariable localId="13" height="27" width="111">
    - <position x="899" y="304"/>
    + <inVariable localId="13" height="27" width="111" executionOrderId="0" negated="false">
    + <position x="899" y="583"/>
    <connectionPointOut>
    <relPosition x="111" y="13"/>
    </connectionPointOut>
    <expression>'ORANGE_OFF'</expression>
    </inVariable>
    - <inVariable localId="14" height="27" width="106">
    - <position x="904" y="341"/>
    + <inVariable localId="14" height="27" width="106" executionOrderId="0" negated="false">
    + <position x="904" y="620"/>
    <connectionPointOut>
    <relPosition x="106" y="13"/>
    </connectionPointOut>
    <expression>'ORANGE_ON'</expression>
    </inVariable>
    - <block localId="15" width="115" height="133" typeName="Led" instanceName="GreenLight">
    - <position x="1058" y="442"/>
    + <block localId="15" width="115" height="133" typeName="Led" instanceName="GreenLight" executionOrderId="0">
    + <position x="1058" y="721"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="38"/>
    <connection refLocalId="16">
    - <position x="1058" y="480"/>
    - <position x="1010" y="480"/>
    + <position x="1058" y="759"/>
    + <position x="1010" y="759"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1494,8 +1553,8 @@
    <connectionPointIn>
    <relPosition x="0" y="75"/>
    <connection refLocalId="17">
    - <position x="1058" y="517"/>
    - <position x="1010" y="517"/>
    + <position x="1058" y="796"/>
    + <position x="1010" y="796"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1503,8 +1562,8 @@
    <connectionPointIn>
    <relPosition x="0" y="112"/>
    <connection refLocalId="1" formalParameter="GREEN_LIGHT">
    - <position x="1058" y="554"/>
    - <position x="819" y="554"/>
    + <position x="1058" y="833"/>
    + <position x="819" y="833"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1512,29 +1571,29 @@
    <inOutVariables/>
    <outputVariables/>
    </block>
    - <inVariable localId="16" height="27" width="111">
    - <position x="899" y="467"/>
    + <inVariable localId="16" height="27" width="111" executionOrderId="0" negated="false">
    + <position x="899" y="746"/>
    <connectionPointOut>
    <relPosition x="111" y="13"/>
    </connectionPointOut>
    <expression>'GREEN_OFF'</expression>
    </inVariable>
    - <inVariable localId="17" height="27" width="106">
    - <position x="904" y="504"/>
    + <inVariable localId="17" height="27" width="106" executionOrderId="0" negated="false">
    + <position x="904" y="783"/>
    <connectionPointOut>
    <relPosition x="106" y="13"/>
    </connectionPointOut>
    <expression>'GREEN_ON'</expression>
    </inVariable>
    - <block localId="18" width="115" height="133" typeName="Led" instanceName="PedestrianRedLight">
    - <position x="1059" y="605"/>
    + <block localId="18" width="115" height="133" typeName="Led" instanceName="PedestrianRedLight" executionOrderId="0">
    + <position x="1059" y="884"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="38"/>
    <connection refLocalId="19">
    - <position x="1059" y="643"/>
    - <position x="1020" y="643"/>
    + <position x="1059" y="922"/>
    + <position x="1020" y="922"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1542,8 +1601,8 @@
    <connectionPointIn>
    <relPosition x="0" y="75"/>
    <connection refLocalId="20">
    - <position x="1059" y="680"/>
    - <position x="1020" y="680"/>
    + <position x="1059" y="959"/>
    + <position x="1020" y="959"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1551,8 +1610,8 @@
    <connectionPointIn>
    <relPosition x="0" y="112"/>
    <connection refLocalId="1" formalParameter="PEDESTRIAN_RED_LIGHT">
    - <position x="1059" y="717"/>
    - <position x="819" y="717"/>
    + <position x="1059" y="996"/>
    + <position x="819" y="996"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1560,29 +1619,29 @@
    <inOutVariables/>
    <outputVariables/>
    </block>
    - <inVariable localId="19" height="27" width="171">
    - <position x="849" y="630"/>
    + <inVariable localId="19" height="27" width="171" executionOrderId="0" negated="false">
    + <position x="849" y="909"/>
    <connectionPointOut>
    <relPosition x="171" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_RED_OFF'</expression>
    </inVariable>
    - <inVariable localId="20" height="27" width="166">
    - <position x="854" y="667"/>
    + <inVariable localId="20" height="27" width="166" executionOrderId="0" negated="false">
    + <position x="854" y="946"/>
    <connectionPointOut>
    <relPosition x="166" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_RED_ON'</expression>
    </inVariable>
    - <block localId="21" width="115" height="133" typeName="Led" instanceName="PedestrianGreenLight">
    - <position x="1059" y="768"/>
    + <block localId="21" width="115" height="133" typeName="Led" instanceName="PedestrianGreenLight" executionOrderId="0">
    + <position x="1059" y="1047"/>
    <inputVariables>
    <variable formalParameter="back_id">
    <connectionPointIn>
    <relPosition x="0" y="38"/>
    <connection refLocalId="22">
    - <position x="1059" y="806"/>
    - <position x="1035" y="806"/>
    + <position x="1059" y="1085"/>
    + <position x="1035" y="1085"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1590,8 +1649,8 @@
    <connectionPointIn>
    <relPosition x="0" y="75"/>
    <connection refLocalId="23">
    - <position x="1059" y="843"/>
    - <position x="1035" y="843"/>
    + <position x="1059" y="1122"/>
    + <position x="1035" y="1122"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1599,8 +1658,8 @@
    <connectionPointIn>
    <relPosition x="0" y="112"/>
    <connection refLocalId="1" formalParameter="PEDESTRIAN_GREEN_LIGHT">
    - <position x="1059" y="880"/>
    - <position x="819" y="880"/>
    + <position x="1059" y="1159"/>
    + <position x="819" y="1159"/>
    </connection>
    </connectionPointIn>
    </variable>
    @@ -1608,236 +1667,52 @@
    <inOutVariables/>
    <outputVariables/>
    </block>
    - <inVariable localId="22" height="27" width="190">
    - <position x="845" y="793"/>
    + <inVariable localId="22" height="27" width="190" executionOrderId="0" negated="false">
    + <position x="845" y="1072"/>
    <connectionPointOut>
    <relPosition x="190" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_GREEN_OFF'</expression>
    </inVariable>
    - <inVariable localId="23" height="27" width="185">
    - <position x="850" y="830"/>
    + <inVariable localId="23" height="27" width="185" executionOrderId="0" negated="false">
    + <position x="850" y="1109"/>
    <connectionPointOut>
    <relPosition x="185" y="13"/>
    </connectionPointOut>
    <expression>'PEDESTRIAN_GREEN_ON'</expression>
    </inVariable>
    - <inVariable localId="24" height="27" width="84">
    - <position x="289" y="1141"/>
    - <connectionPointOut>
    - <relPosition x="84" y="13"/>
    - </connectionPointOut>
    - <expression>TEST_DATE</expression>
    - </inVariable>
    - <block localId="25" width="128" height="40" typeName="DATE_TO_STRING">
    - <position x="426" y="1124"/>
    - <inputVariables>
    - <variable formalParameter="IN">
    - <connectionPointIn>
    - <relPosition x="0" y="30"/>
    - <connection refLocalId="24">
    - <position x="426" y="1154"/>
    - <position x="373" y="1154"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - </inputVariables>
    - <inOutVariables/>
    - <outputVariables>
    - <variable formalParameter="OUT">
    - <connectionPointOut>
    - <relPosition x="128" y="30"/>
    - </connectionPointOut>
    - </variable>
    - </outputVariables>
    - </block>
    - <outVariable localId="26" height="27" width="116">
    - <position x="640" y="1141"/>
    - <connectionPointIn>
    - <relPosition x="0" y="13"/>
    - <connection refLocalId="25" formalParameter="OUT">
    - <position x="640" y="1154"/>
    - <position x="554" y="1154"/>
    - </connection>
    - </connectionPointIn>
    - <expression>RESULT_STRING</expression>
    - </outVariable>
    - <inVariable localId="27" height="27" width="90">
    - <position x="294" y="1271"/>
    - <connectionPointOut>
    - <relPosition x="90" y="13"/>
    - </connectionPointOut>
    - <expression>TEST_ULINT</expression>
    - </inVariable>
    - <outVariable localId="28" height="27" width="89">
    - <position x="630" y="1271"/>
    - <connectionPointIn>
    - <relPosition x="0" y="13"/>
    - <connection refLocalId="29" formalParameter="OUT">
    - <position x="630" y="1284"/>
    - <position x="551" y="1284"/>
    - </connection>
    - </connectionPointIn>
    - <expression>RESULT_INT</expression>
    - </outVariable>
    - <block localId="29" width="107" height="40" typeName="ULINT_TO_INT">
    - <position x="444" y="1254"/>
    - <inputVariables>
    - <variable formalParameter="IN">
    - <connectionPointIn>
    - <relPosition x="0" y="30"/>
    - <connection refLocalId="27">
    - <position x="444" y="1284"/>
    - <position x="384" y="1284"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - </inputVariables>
    - <inOutVariables/>
    - <outputVariables>
    - <variable formalParameter="OUT">
    - <connectionPointOut>
    - <relPosition x="107" y="30"/>
    - </connectionPointOut>
    - </variable>
    - </outputVariables>
    - </block>
    - <inVariable localId="30" height="27" width="89">
    - <position x="139" y="1032"/>
    - <connectionPointOut>
    - <relPosition x="89" y="13"/>
    - </connectionPointOut>
    - <expression>RESULT_INT</expression>
    - </inVariable>
    - <block localId="31" width="68" height="85" typeName="LIMIT">
    - <position x="419" y="994"/>
    - <inputVariables>
    - <variable formalParameter="MN">
    - <connectionPointIn>
    - <relPosition x="0" y="30"/>
    - <connection refLocalId="33">
    - <position x="419" y="1024"/>
    - <position x="390" y="1024"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - <variable formalParameter="IN">
    - <connectionPointIn>
    - <relPosition x="0" y="51"/>
    - <connection refLocalId="38" formalParameter="OUT">
    - <position x="419" y="1045"/>
    - <position x="335" y="1045"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - <variable formalParameter="MX">
    - <connectionPointIn>
    - <relPosition x="0" y="72"/>
    - <connection refLocalId="34">
    - <position x="419" y="1066"/>
    - <position x="404" y="1066"/>
    - <position x="404" y="1067"/>
    - <position x="389" y="1067"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - </inputVariables>
    - <inOutVariables/>
    - <outputVariables>
    - <variable formalParameter="OUT">
    - <connectionPointOut>
    - <relPosition x="68" y="30"/>
    - </connectionPointOut>
    - </variable>
    - </outputVariables>
    - </block>
    - <inVariable localId="33" height="27" width="20">
    - <position x="370" y="1011"/>
    - <connectionPointOut>
    - <relPosition x="20" y="13"/>
    - </connectionPointOut>
    - <expression>0</expression>
    - </inVariable>
    - <inVariable localId="34" height="27" width="26">
    - <position x="363" y="1054"/>
    - <connectionPointOut>
    - <relPosition x="26" y="13"/>
    - </connectionPointOut>
    - <expression>31</expression>
    - </inVariable>
    - <block localId="35" width="100" height="45" typeName="INT_TO_BYTE">
    - <position x="529" y="992"/>
    - <inputVariables>
    - <variable formalParameter="IN">
    - <connectionPointIn>
    - <relPosition x="0" y="32"/>
    - <connection refLocalId="31" formalParameter="OUT">
    - <position x="529" y="1024"/>
    - <position x="487" y="1024"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - </inputVariables>
    - <inOutVariables/>
    - <outputVariables>
    - <variable formalParameter="OUT">
    - <connectionPointOut>
    - <relPosition x="100" y="32"/>
    - </connectionPointOut>
    - </variable>
    - </outputVariables>
    - </block>
    - <outVariable localId="37" height="27" width="100">
    - <position x="681" y="1011"/>
    - <connectionPointIn>
    - <relPosition x="0" y="13"/>
    - <connection refLocalId="35" formalParameter="OUT">
    - <position x="681" y="1024"/>
    - <position x="629" y="1024"/>
    - </connection>
    - </connectionPointIn>
    - <expression>RESULT_BYTE</expression>
    - </outVariable>
    - <block localId="38" width="67" height="60" typeName="MUL">
    - <position x="268" y="1015"/>
    - <inputVariables>
    - <variable formalParameter="IN1">
    - <connectionPointIn>
    - <relPosition x="0" y="30"/>
    - <connection refLocalId="30">
    - <position x="268" y="1045"/>
    - <position x="228" y="1045"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - <variable formalParameter="IN2">
    - <connectionPointIn>
    - <relPosition x="0" y="50"/>
    - <connection refLocalId="39">
    - <position x="268" y="1065"/>
    - <position x="248" y="1065"/>
    - <position x="248" y="1084"/>
    - <position x="229" y="1084"/>
    - </connection>
    - </connectionPointIn>
    - </variable>
    - </inputVariables>
    - <inOutVariables/>
    - <outputVariables>
    - <variable formalParameter="OUT">
    - <connectionPointOut>
    - <relPosition x="67" y="30"/>
    - </connectionPointOut>
    - </variable>
    - </outputVariables>
    - </block>
    - <inVariable localId="39" height="27" width="18">
    - <position x="211" y="1071"/>
    - <connectionPointOut>
    - <relPosition x="18" y="13"/>
    - </connectionPointOut>
    - <expression>1</expression>
    - </inVariable>
    + <comment localId="24" height="262" width="804">
    + <position x="22" y="13"/>
    + <content>
    + <xhtml:p><![CDATA[This example implements control of traffic lights.
    +
    +Basically it shows following features of Beremiz:
    +- web interface (SCADA) using integrated web server in svgui extension;
    +- interaction with web UI;
    +- functional blocks in SFC language.
    +
    +
    +
    +
    +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="411">
    + <position x="20" y="319"/>
    + <content>
    + <xhtml:p><![CDATA[In this example FB 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>
    --- a/tests/traffic_lights/svgui-0@svgui/pyfile.xml Wed Oct 19 16:32:10 2016 +0300
    +++ b/tests/traffic_lights/svgui-0@svgui/pyfile.xml Thu Oct 20 14:45:11 2016 +0300
    @@ -2,18 +2,31 @@
    <PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <variables/>
    <globals>
    - <xhtml:p><![CDATA[]]></xhtml:p>
    + <xhtml:p><![CDATA[
    +/*
    + Web interface is build as SVG file in Inkscape.
    + To edit SVG file click 'Inkscape' button on the toolbar above.
    +
    + Inkscape is a free and open-source vector graphics editor.
    + It's not part of Beremiz and needs to be installed separately.
    +*/
    +
    +]]></xhtml:p>
    </globals>
    <init>
    - <xhtml:p><![CDATA[]]></xhtml:p>
    + <xhtml:p><![CDATA[
    +]]></xhtml:p>
    </init>
    <cleanup>
    - <xhtml:p><![CDATA[]]></xhtml:p>
    + <xhtml:p><![CDATA[
    +]]></xhtml:p>
    </cleanup>
    <start>
    - <xhtml:p><![CDATA[]]></xhtml:p>
    + <xhtml:p><![CDATA[
    +]]></xhtml:p>
    </start>
    <stop>
    - <xhtml:p><![CDATA[]]></xhtml:p>
    + <xhtml:p><![CDATA[
    +]]></xhtml:p>
    </stop>
    </PyFile>