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Edouard@1401: <xhtml:p><![CDATA[You will be ready to use beremiz with C and Python when you will understand why "FromInput" is equal to 75.
andrej@1541: Happy hacking! ]]></xhtml:p>
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Edouard@1401: <xhtml:p><![CDATA[Prints FBID to stdout of PLC runtime. FBID is a unique reference to py_eval instance.]]></xhtml:p>
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Edouard@1401: <xhtml:p><![CDATA[Fast clock, at least faster that sleep(1). See what happens when python takes time to answer : PLC continues.]]></xhtml:p>
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Edouard@862: </comment>
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Laurent@881: </inputVariables>
Laurent@881: <inOutVariables/>
Laurent@881: <outputVariables>
Laurent@881: <variable formalParameter="OUT">
Laurent@881: <connectionPointOut>
Laurent@881: <relPosition x="70" y="35"/>
Laurent@881: </connectionPointOut>
Laurent@881: </variable>
Laurent@881: </outputVariables>
Laurent@881: </block>
andrej@1541: <inVariable localId="48" height="30" width="105" executionOrderId="0" negated="false">
andrej@1541: <position x="75" y="2425"/>
andrej@1541: <connectionPointOut>
andrej@1541: <relPosition x="105" y="15"/>
Laurent@881: </connectionPointOut>
Laurent@881: <expression>BOOL#FALSE</expression>
Laurent@881: </inVariable>
andrej@1541: <outVariable localId="54" height="30" width="135" executionOrderId="0" negated="false">
andrej@1541: <position x="930" y="1774"/>
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="16"/>
Laurent@941: <connection refLocalId="55" formalParameter="OUT">
andrej@1541: <position x="930" y="1790"/>
andrej@1541: <position x="855" y="1790"/>
Laurent@941: </connection>
Laurent@941: </connectionPointIn>
Laurent@941: <expression>Test_TOD_STRING</expression>
Laurent@941: </outVariable>
andrej@1541: <block localId="55" width="125" height="45" typeName="TOD_TO_STRING" executionOrderId="0">
andrej@1541: <position x="730" y="1759"/>
Laurent@941: <inputVariables>
Laurent@941: <variable formalParameter="IN">
Laurent@941: <connectionPointIn>
andrej@1541: <relPosition x="0" y="31"/>
Laurent@941: <connection refLocalId="39">
andrej@1541: <position x="730" y="1790"/>
andrej@1541: <position x="655" y="1790"/>
Laurent@941: </connection>
Laurent@941: </connectionPointIn>
Laurent@941: </variable>
Laurent@941: </inputVariables>
Laurent@941: <inOutVariables/>
Laurent@941: <outputVariables>
Laurent@941: <variable formalParameter="OUT">
Laurent@941: <connectionPointOut>
andrej@1541: <relPosition x="125" y="31"/>
andrej@1541: </connectionPointOut>
andrej@1541: </variable>
andrej@1541: </outputVariables>
andrej@1541: </block>
andrej@1541: <inOutVariable localId="39" height="30" width="75" executionOrderId="0" negatedOut="false" negatedIn="false">
andrej@1541: <position x="580" y="1774"/>
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="16"/>
Laurent@941: <connection refLocalId="37" formalParameter="OUT">
andrej@1541: <position x="580" y="1790"/>
andrej@1541: <position x="520" y="1790"/>
andrej@1541: </connection>
andrej@1541: </connectionPointIn>
andrej@1541: <connectionPointOut>
andrej@1541: <relPosition x="75" y="16"/>
Laurent@941: </connectionPointOut>
Laurent@941: <expression>Test_TOD</expression>
Laurent@941: </inOutVariable>
andrej@1541: <inVariable localId="49" height="30" width="30" executionOrderId="0" negated="false">
andrej@1541: <position x="160" y="2510"/>
Edouard@1013: <connectionPointOut>
Edouard@1013: <relPosition x="30" y="15"/>
Edouard@1013: </connectionPointOut>
Edouard@1013: <expression>42</expression>
Edouard@1013: </inVariable>
andrej@1541: <outVariable localId="57" height="30" width="50" executionOrderId="0" negated="false">
andrej@1541: <position x="240" y="2510"/>
Edouard@1013: <connectionPointIn>
Edouard@1013: <relPosition x="0" y="15"/>
Edouard@1013: <connection refLocalId="49">
andrej@1541: <position x="240" y="2525"/>
andrej@1541: <position x="190" y="2525"/>
Edouard@1013: </connection>
Edouard@1013: </connectionPointIn>
Edouard@1013: <expression>TOTO</expression>
Edouard@1013: </outVariable>
andrej@1541: <outVariable localId="56" height="30" width="50" executionOrderId="0" negated="false">
andrej@1541: <position x="240" y="2550"/>
Edouard@1013: <connectionPointIn>
Edouard@1013: <relPosition x="0" y="15"/>
Edouard@1013: <connection refLocalId="49">
andrej@1541: <position x="240" y="2565"/>
andrej@1541: <position x="215" y="2565"/>
andrej@1541: <position x="215" y="2525"/>
andrej@1541: <position x="190" y="2525"/>
Edouard@1013: </connection>
Edouard@1013: </connectionPointIn>
Edouard@1013: <expression>TUTU</expression>
Edouard@1013: </outVariable>
andrej@2346: <inVariable localId="58" height="30" width="146" executionOrderId="0" negated="false">
andrej@1541: <position x="60" y="1944"/>
andrej@1541: <connectionPointOut>
andrej@2346: <relPosition x="146" y="16"/>
Edouard@1145: </connectionPointOut>
Edouard@1145: <expression>Second_Python_Var</expression>
Edouard@1145: </inVariable>
andrej@2346: <outVariable localId="47" height="30" width="130" executionOrderId="0" negated="false">
andrej@1541: <position x="200" y="1385"/>
Edouard@1145: <connectionPointIn>
Edouard@1145: <relPosition x="0" y="15"/>
Edouard@1145: <connection refLocalId="59">
andrej@1541: <position x="200" y="1400"/>
andrej@1541: <position x="130" y="1400"/>
Edouard@1145: </connection>
Edouard@1145: </connectionPointIn>
Edouard@1145: <expression>Test_Python_Var</expression>
Edouard@1145: </outVariable>
andrej@1541: <inVariable localId="59" height="30" width="30" executionOrderId="0" negated="false">
andrej@1541: <position x="100" y="1385"/>
Edouard@1145: <connectionPointOut>
Edouard@1145: <relPosition x="30" y="15"/>
Edouard@1145: </connectionPointOut>
Edouard@1145: <expression>23</expression>
Edouard@1145: </inVariable>
andrej@2346: <block localId="61" typeName="function0" executionOrderId="0" height="45" width="111">
andrej@1541: <position x="760" y="1170"/>
Edouard@1419: <inputVariables>
Edouard@1419: <variable formalParameter="LocalVar0">
Edouard@1419: <connectionPointIn>
Edouard@1419: <relPosition x="0" y="30"/>
Edouard@1419: <connection refLocalId="62">
andrej@1541: <position x="760" y="1200"/>
andrej@2346: <position x="723" y="1200"/>
Edouard@1419: </connection>
Edouard@1419: </connectionPointIn>
Edouard@1419: </variable>
Edouard@1419: </inputVariables>
Edouard@1419: <inOutVariables/>
Edouard@1419: <outputVariables>
Edouard@1419: <variable formalParameter="OUT">
Edouard@1419: <connectionPointOut>
andrej@2346: <relPosition x="111" y="30"/>
andrej@2346: </connectionPointOut>
andrej@2346: </variable>
andrej@2346: </outputVariables>
andrej@2346: </block>
andrej@2346: <inVariable localId="62" executionOrderId="0" height="30" width="58" negated="false">
andrej@1541: <position x="665" y="1185"/>
Edouard@1419: <connectionPointOut>
andrej@2346: <relPosition x="58" y="15"/>
Edouard@1419: </connectionPointOut>
Edouard@1419: <expression>fefvsd</expression>
Edouard@1419: </inVariable>
andrej@2346: <outVariable localId="63" executionOrderId="0" height="30" width="58" negated="false">
andrej@1541: <position x="905" y="1185"/>
Edouard@1419: <connectionPointIn>
Edouard@1419: <relPosition x="0" y="15"/>
Edouard@1419: <connection refLocalId="61" formalParameter="OUT">
andrej@1541: <position x="905" y="1200"/>
andrej@2346: <position x="871" y="1200"/>
Edouard@1419: </connection>
Edouard@1419: </connectionPointIn>
Edouard@1419: <expression>fefvsd</expression>
Edouard@1419: </outVariable>
andrej@2296: <comment localId="53" height="80" width="420">
andrej@1541: <position x="75" y="2160"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[Shows global variables access from resource configuration (res_pytest) and from project's configuration.]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
andrej@2346: <inVariable localId="18" height="30" width="74" executionOrderId="0" negated="false">
andrej@2346: <position x="986" y="795"/>
andrej@2346: <connectionPointOut>
andrej@2346: <relPosition x="74" y="15"/>
andrej@1541: </connectionPointOut>
andrej@1541: <expression>mux2_sel</expression>
andrej@1541: </inVariable>
andrej@1541: <comment localId="60" height="45" width="930">
andrej@1541: <position x="60" y="1480"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[Here is shown how to convert values between different types (BCD, DT, TOD, STRING and others) using standard functions.]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
andrej@1541: <comment localId="64" height="55" width="300">
andrej@1541: <position x="665" y="1095"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[Example of usage of user-defined function.]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
andrej@1541: <comment localId="65" height="45" width="410">
andrej@1541: <position x="55" y="1315"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[Shows access variable defined in python extension. ]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
andrej@2296: <inVariable localId="66" height="30" width="137" executionOrderId="0" negated="false">
andrej@1541: <position x="60" y="1685"/>
andrej@1541: <connectionPointOut>
andrej@2296: <relPosition x="137" y="15"/>
andrej@1541: </connectionPointOut>
andrej@1541: <expression>Test_BCD_WRONG</expression>
andrej@1541: </inVariable>
andrej@2296: <block localId="67" width="106" height="100" typeName="BCD_TO_UINT" executionOrderId="0">
andrej@1541: <position x="265" y="1620"/>
andrej@1541: <inputVariables>
andrej@1541: <variable formalParameter="EN">
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="40"/>
andrej@1541: </connectionPointIn>
andrej@1541: </variable>
andrej@1541: <variable formalParameter="IN">
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="80"/>
andrej@1541: <connection refLocalId="66">
andrej@1541: <position x="265" y="1700"/>
andrej@1541: <position x="255" y="1700"/>
andrej@1541: <position x="255" y="1700"/>
andrej@1541: <position x="345" y="1700"/>
andrej@1541: <position x="345" y="1700"/>
andrej@2296: <position x="197" y="1700"/>
andrej@1541: </connection>
andrej@1541: </connectionPointIn>
andrej@1541: </variable>
andrej@1541: </inputVariables>
andrej@1541: <inOutVariables/>
andrej@1541: <outputVariables>
andrej@1541: <variable formalParameter="ENO">
andrej@1541: <connectionPointOut>
andrej@2296: <relPosition x="106" y="40"/>
andrej@1541: </connectionPointOut>
andrej@1541: </variable>
andrej@1541: <variable formalParameter="OUT">
andrej@1541: <connectionPointOut>
andrej@2296: <relPosition x="106" y="80"/>
andrej@2296: </connectionPointOut>
andrej@2296: </variable>
andrej@2296: </outputVariables>
andrej@2296: </block>
andrej@2296: <outVariable localId="68" height="30" width="196" executionOrderId="0" negated="false">
andrej@1541: <position x="580" y="1685"/>
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="15"/>
andrej@1541: <connection refLocalId="67" formalParameter="OUT">
andrej@1541: <position x="580" y="1700"/>
andrej@2296: <position x="371" y="1700"/>
andrej@1541: </connection>
andrej@1541: </connectionPointIn>
andrej@1541: <expression>Test_BCD_WRONG_RESULT</expression>
andrej@1541: </outVariable>
andrej@2296: <comment localId="69" height="165" width="375">
andrej@1541: <position x="795" y="1590"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[Incorrect BCD number is not converted to UINT.
andrej@1541:
andrej@1541: 151 (16#97) is good BCD number , but
andrej@1541: 154 (16#9A) is not.
andrej@1541:
andrej@1541: Try this out and look at value of Test_BCD_CONVERTED variable.
andrej@1541:
andrej@1541:
andrej@1541: ]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
andrej@1541: <outVariable localId="70" height="30" width="185" executionOrderId="0" negated="false">
andrej@1541: <position x="580" y="1645"/>
andrej@1541: <connectionPointIn>
andrej@1541: <relPosition x="0" y="15"/>
andrej@1541: <connection refLocalId="67" formalParameter="ENO">
andrej@1541: <position x="580" y="1660"/>
andrej@1541: <position x="370" y="1660"/>
andrej@1541: </connection>
andrej@1541: </connectionPointIn>
andrej@1541: <expression>Test_BCD_CONVERTED</expression>
andrej@1541: </outVariable>
andrej@2296: <comment localId="71" height="215" width="680">
andrej@1541: <position x="35" y="30"/>
andrej@1541: <content>
andrej@1541: <xhtml:p><![CDATA[This example shows many features in Beremiz:
andrej@1541:
andrej@1541: 1. How to implement python extensions.
andrej@1541: 2. How to implement basic C extension.
andrej@1541: 3. How to use C code in IEC POUs.
andrej@1541: 4. How to call C functions from python code.
andrej@1541: 5. How to avoid race conditions between IEC, C and python code.
andrej@1541: 6. How to convert betweet different IEC types.
andrej@1541: ]]></xhtml:p>
andrej@1541: </content>
andrej@1541: </comment>
etisserant@280: </FBD>
etisserant@280: </body>
etisserant@280: </pou>
Edouard@859: <pou name="C_Pragma" pouType="functionBlock">
Edouard@859: <interface>
Edouard@859: <outputVars>
Edouard@859: <variable name="OUT">
Edouard@859: <type>
Edouard@859: <SINT/>
Edouard@859: </type>
Edouard@859: </variable>
Edouard@859: </outputVars>
Edouard@859: <inputVars>
Edouard@859: <variable name="IN">
Edouard@859: <type>
Edouard@859: <SINT/>
Edouard@859: </type>
Edouard@859: </variable>
Edouard@859: </inputVars>
Edouard@861: <localVars>
Edouard@861: <variable name="COORDS">
Edouard@861: <type>
Edouard@861: <array>
Edouard@861: <dimension lower="0" upper="5"/>
Edouard@861: <baseType>
Edouard@861: <SINT/>
Edouard@861: </baseType>
Edouard@861: </array>
Edouard@861: </type>
Edouard@861: <initialValue>
Edouard@861: <arrayValue>
Edouard@861: <value>
Edouard@861: <simpleValue value="54"/>
Edouard@861: </value>
Edouard@861: <value>
Edouard@861: <simpleValue value="55"/>
Edouard@861: </value>
Edouard@861: <value>
Edouard@861: <simpleValue value="56"/>
Edouard@861: </value>
Edouard@861: <value>
Edouard@861: <simpleValue value="57"/>
Edouard@861: </value>
Edouard@861: <value>
Edouard@861: <simpleValue value="58"/>
Edouard@861: </value>
Edouard@861: <value>
Edouard@861: <simpleValue value="59"/>
Edouard@861: </value>
Edouard@861: </arrayValue>
Edouard@861: </initialValue>
Edouard@861: </variable>
Edouard@861: <variable name="SMURF">
Edouard@861: <type>
Edouard@861: <derived name="CPLX_TYPE"/>
Edouard@861: </type>
Edouard@861: </variable>
Edouard@861: </localVars>
Laurent@881: <externalVars>
Laurent@881: <variable name="Global_RS">
Laurent@881: <type>
Laurent@881: <derived name="RS"/>
Laurent@881: </type>
Laurent@881: </variable>
Edouard@2626: <variable name="Dudiduda">
Edouard@2626: <type>
Edouard@2626: <derived name="blups"/>
Edouard@2626: </type>
Edouard@2626: </variable>
Laurent@881: </externalVars>
Edouard@859: </interface>
Edouard@859: <body>
Edouard@859: <ST>
Edouard@1401: <xhtml:p><![CDATA[(* hereafter is a C pragma accessing FB interface in a clean way *)
Edouard@861: {{
Edouard@861: char toPLC;
Edouard@861: char fromPLC = GetFbVar(IN);
Laurent@1086: extern int PLC_C_Call(char, char *);
Edouard@861: if(PLC_C_Call(fromPLC, &toPLC)){
Edouard@861: SetFbVar(OUT, toPLC);
Edouard@861: }
Edouard@861: if(0){
Edouard@861: /* that code demonstrate C access to complex types */
Edouard@861: char somebyte = GetFbVar(COORDS, .table[3]);
Edouard@861: SetFbVar(SMURF, somebyte, .FIRSTBYTE);
Edouard@861: SetFbVar(COORDS, somebyte, .table[4]);
Edouard@861: }
Edouard@861: }}
andrej@1541: (* If you do not use GetFbVar and SetFbVar macros, expect unexpected behaviour*)
Laurent@881: Global_RS();
Edouard@2626:
Edouard@2626: (* testing access to global struct array *)
Edouard@2626: Dudiduda[2].FIRSTBYTE := 0;
Edouard@1401: ]]></xhtml:p>
Edouard@859: </ST>
Edouard@859: </body>
Edouard@859: </pou>
Laurent@918: <pou name="norm" pouType="function">
Laurent@918: <interface>
Laurent@918: <returnType>
Laurent@918: <REAL/>
Laurent@918: </returnType>
Laurent@918: <inputVars>
Laurent@918: <variable name="IN1">
Laurent@918: <type>
Laurent@918: <REAL/>
Laurent@918: </type>
Laurent@918: </variable>
Laurent@918: <variable name="IN2">
Laurent@918: <type>
Laurent@918: <REAL/>
Laurent@918: </type>
Laurent@918: </variable>
Laurent@918: </inputVars>
Laurent@918: </interface>
Laurent@918: <body>
Laurent@918: <ST>
Edouard@1401: <xhtml:p><![CDATA[NORM := SQRT(IN1 * IN1 + IN2 * IN2);]]></xhtml:p>
Laurent@918: </ST>
Laurent@918: </body>
Laurent@918: </pou>
Edouard@1419: <pou name="function0" pouType="function">
Edouard@1419: <interface>
Edouard@1419: <returnType>
Edouard@1419: <derived name="datatype0"/>
Edouard@1419: </returnType>
Edouard@1419: <inputVars>
Edouard@1419: <variable name="LocalVar0">
Edouard@1419: <type>
Edouard@1419: <derived name="datatype0"/>
Edouard@1419: </type>
Edouard@1419: </variable>
Edouard@1419: </inputVars>
Edouard@1419: </interface>
Edouard@1419: <body>
Edouard@1419: <ST>
Edouard@1419: <xhtml:p><![CDATA[function0 := LocalVar0;
Edouard@1419: ]]></xhtml:p>
Edouard@1419: </ST>
Edouard@1419: </body>
Edouard@1419: </pou>
etisserant@280: </pous>
etisserant@280: </types>
etisserant@280: <instances>
etisserant@280: <configurations>
Edouard@1452: <configuration name="config">
etisserant@280: <resource name="res_pytest">
Laurent@881: <task name="pytest_task" interval="T#1ms" priority="0"/>
Laurent@918: <globalVars>
Laurent@918: <variable name="TOTO">
Laurent@918: <type>
Laurent@918: <INT/>
Laurent@918: </type>
Laurent@918: </variable>
Laurent@918: </globalVars>
laurent@366: <pouInstance name="pytest_instance" typeName="main_pytest"/>
etisserant@280: </resource>
Laurent@881: <globalVars>
Laurent@881: <variable name="Global_RS">
Laurent@881: <type>
Laurent@881: <derived name="RS"/>
Laurent@881: </type>
Laurent@881: </variable>
Edouard@2626: <variable name="Dudiduda">
Edouard@2626: <type>
Edouard@2626: <derived name="blups"/>
Edouard@2626: </type>
Edouard@2626: </variable>
Edouard@1013: <variable name="TUTU">
Edouard@1013: <type>
Edouard@1013: <INT/>
Edouard@1013: </type>
Edouard@1013: </variable>
Laurent@881: </globalVars>
etisserant@280: </configuration>
etisserant@280: </configurations>
etisserant@280: </instances>
etisserant@280: </project>