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<xhtml:p><![CDATA[This part of the example test that, despite of 2T period clock stimulating TRIG pin of pyth_eval blocks, blocks keep executing one after the other, in respect of execution order.]]></xhtml:p>
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<xhtml:p><![CDATA[You will be ready to use beremiz with C and Python when you will understand why "FromInput" is equal to 75.
Happy hacking! ]]></xhtml:p>
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<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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<xhtml:p><![CDATA[Simple_C_Call is declared in C_File "1.x:c_code". See python ctypes manual for details on typing.]]></xhtml:p>
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<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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</outputVariables>
</block>
<outVariable localId="40" height="30" width="82" executionOrderId="0" negated="false">
<position x="580" y="1849"/>
<connectionPointIn>
<relPosition x="0" y="16"/>
<connection refLocalId="38" formalParameter="OUT">
<position x="580" y="1865"/>
<position x="460" y="1865"/>
</connection>
</connectionPointIn>
<expression>Test_Date</expression>
</outVariable>
<outVariable localId="42" height="30" width="98" executionOrderId="0" negated="false">
<position x="465" y="1944"/>
<connectionPointIn>
<relPosition x="0" y="16"/>
<connection refLocalId="46" formalParameter="OUT">
<position x="465" y="1960"/>
<position x="395" y="1960"/>
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<expression>Test_String</expression>
</outVariable>
<outVariable localId="43" height="30" width="82" executionOrderId="0" negated="false">
<position x="465" y="2014"/>
<connectionPointIn>
<relPosition x="0" y="16"/>
<connection refLocalId="44" formalParameter="OUT">
<position x="465" y="2030"/>
<position x="400" y="2030"/>
</connection>
</connectionPointIn>
<expression>Test_Bool</expression>
</outVariable>
<block localId="44" width="135" height="45" typeName="STRING_TO_BOOL" executionOrderId="0">
<position x="265" y="1999"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
<relPosition x="0" y="31"/>
<connection refLocalId="45">
<position x="265" y="2030"/>
<position x="115" y="2030"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="135" y="31"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="45" height="30" width="58" executionOrderId="0" negated="false">
<position x="60" y="2014"/>
<connectionPointOut>
<relPosition x="58" y="16"/>
</connectionPointOut>
<expression>'True'</expression>
</inVariable>
<block localId="46" width="130" height="45" typeName="INT_TO_STRING" executionOrderId="0">
<position x="265" y="1929"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
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<connection refLocalId="58">
<position x="265" y="1960"/>
<position x="205" y="1960"/>
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</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="130" y="31"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="50" height="30" width="106" executionOrderId="0" negated="false">
<position x="75" y="2275"/>
<connectionPointOut>
<relPosition x="106" y="15"/>
</connectionPointOut>
<expression>Global_RS.Q1</expression>
</inVariable>
<block localId="51" width="70" height="85" typeName="AND" executionOrderId="0">
<position x="240" y="2255"/>
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<connection refLocalId="50">
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<position x="180" y="2290"/>
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</variable>
<variable formalParameter="IN2">
<connectionPointIn>
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<connection refLocalId="52">
<position x="240" y="2325"/>
<position x="180" y="2325"/>
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</connectionPointIn>
</variable>
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<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
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<position x="75" y="2310"/>
<connectionPointOut>
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<expression>BOOL#TRUE</expression>
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<position x="310" y="2290"/>
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<expression>Global_RS.S</expression>
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<position x="385" y="2390"/>
<connectionPointIn>
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<connection refLocalId="41" formalParameter="OUT">
<position x="385" y="2405"/>
<position x="310" y="2405"/>
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<expression>Global_RS.R1</expression>
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<inVariable localId="24" height="30" width="106" executionOrderId="0" negated="false">
<position x="75" y="2390"/>
<connectionPointOut>
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</connectionPointOut>
<expression>Global_RS.Q1</expression>
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<block localId="41" width="70" height="85" typeName="OR" executionOrderId="0">
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<connection refLocalId="24">
<position x="240" y="2405"/>
<position x="180" y="2405"/>
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</variable>
<variable formalParameter="IN2">
<connectionPointIn>
<relPosition x="0" y="70"/>
<connection refLocalId="48">
<position x="240" y="2440"/>
<position x="180" y="2440"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="70" y="35"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="48" height="30" width="105" executionOrderId="0" negated="false">
<position x="75" y="2425"/>
<connectionPointOut>
<relPosition x="105" y="15"/>
</connectionPointOut>
<expression>BOOL#FALSE</expression>
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<outVariable localId="54" height="30" width="135" executionOrderId="0" negated="false">
<position x="930" y="1774"/>
<connectionPointIn>
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<connection refLocalId="55" formalParameter="OUT">
<position x="930" y="1790"/>
<position x="855" y="1790"/>
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</connectionPointIn>
<expression>Test_TOD_STRING</expression>
</outVariable>
<block localId="55" width="125" height="45" typeName="TOD_TO_STRING" executionOrderId="0">
<position x="730" y="1759"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
<relPosition x="0" y="31"/>
<connection refLocalId="39">
<position x="730" y="1790"/>
<position x="655" y="1790"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="125" y="31"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inOutVariable localId="39" height="30" width="75" executionOrderId="0" negatedOut="false" negatedIn="false">
<position x="580" y="1774"/>
<connectionPointIn>
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<connection refLocalId="37" formalParameter="OUT">
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<position x="520" y="1790"/>
</connection>
</connectionPointIn>
<connectionPointOut>
<relPosition x="75" y="16"/>
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<expression>Test_TOD</expression>
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<connectionPointOut>
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<expression>42</expression>
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<position x="240" y="2510"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="49">
<position x="240" y="2525"/>
<position x="190" y="2525"/>
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<expression>TOTO</expression>
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<connectionPointIn>
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<connection refLocalId="49">
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<position x="215" y="2525"/>
<position x="190" y="2525"/>
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<expression>TUTU</expression>
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<position x="60" y="1944"/>
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<expression>Second_Python_Var</expression>
</inVariable>
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<position x="100" y="1385"/>
<connectionPointOut>
<relPosition x="30" y="15"/>
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<expression>1</expression>
</inVariable>
<block localId="61" typeName="function0" executionOrderId="0" height="45" width="111">
<position x="760" y="1170"/>
<inputVariables>
<variable formalParameter="LocalVar0">
<connectionPointIn>
<relPosition x="0" y="30"/>
<connection refLocalId="62">
<position x="760" y="1200"/>
<position x="723" y="1200"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="111" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="62" executionOrderId="0" height="30" width="58" negated="false">
<position x="665" y="1185"/>
<connectionPointOut>
<relPosition x="58" y="15"/>
</connectionPointOut>
<expression>fefvsd</expression>
</inVariable>
<outVariable localId="63" executionOrderId="0" height="30" width="58" negated="false">
<position x="905" y="1185"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="61" formalParameter="OUT">
<position x="905" y="1200"/>
<position x="871" y="1200"/>
</connection>
</connectionPointIn>
<expression>fefvsd</expression>
</outVariable>
<comment localId="53" height="80" width="420">
<position x="75" y="2160"/>
<content>
<xhtml:p><![CDATA[Shows global variables access from resource configuration (res_pytest) and from project's configuration.]]></xhtml:p>
</content>
</comment>
<inVariable localId="18" height="30" width="74" executionOrderId="0" negated="false">
<position x="986" y="795"/>
<connectionPointOut>
<relPosition x="74" y="15"/>
</connectionPointOut>
<expression>mux2_sel</expression>
</inVariable>
<comment localId="60" height="45" width="930">
<position x="60" y="1480"/>
<content>
<xhtml:p><![CDATA[Here is shown how to convert values between different types (BCD, DT, TOD, STRING and others) using standard functions.]]></xhtml:p>
</content>
</comment>
<comment localId="64" height="55" width="300">
<position x="665" y="1095"/>
<content>
<xhtml:p><![CDATA[Example of usage of user-defined function.]]></xhtml:p>
</content>
</comment>
<comment localId="65" height="45" width="410">
<position x="55" y="1315"/>
<content>
<xhtml:p><![CDATA[Shows access variable defined in python extension. ]]></xhtml:p>
</content>
</comment>
<inVariable localId="66" height="30" width="137" executionOrderId="0" negated="false">
<position x="60" y="1685"/>
<connectionPointOut>
<relPosition x="137" y="15"/>
</connectionPointOut>
<expression>Test_BCD_WRONG</expression>
</inVariable>
<block localId="67" width="106" height="100" typeName="BCD_TO_UINT" executionOrderId="0">
<position x="265" y="1620"/>
<inputVariables>
<variable formalParameter="EN">
<connectionPointIn>
<relPosition x="0" y="40"/>
</connectionPointIn>
</variable>
<variable formalParameter="IN">
<connectionPointIn>
<relPosition x="0" y="80"/>
<connection refLocalId="66">
<position x="265" y="1700"/>
<position x="255" y="1700"/>
<position x="255" y="1700"/>
<position x="345" y="1700"/>
<position x="345" y="1700"/>
<position x="197" y="1700"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="ENO">
<connectionPointOut>
<relPosition x="106" y="40"/>
</connectionPointOut>
</variable>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="106" y="80"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<outVariable localId="68" height="30" width="196" executionOrderId="0" negated="false">
<position x="580" y="1685"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="67" formalParameter="OUT">
<position x="580" y="1700"/>
<position x="371" y="1700"/>
</connection>
</connectionPointIn>
<expression>Test_BCD_WRONG_RESULT</expression>
</outVariable>
<comment localId="69" height="165" width="375">
<position x="795" y="1590"/>
<content>
<xhtml:p><![CDATA[Incorrect BCD number is not converted to UINT.
151 (16#97) is good BCD number , but
154 (16#9A) is not.
Try this out and look at value of Test_BCD_CONVERTED variable.
]]></xhtml:p>
</content>
</comment>
<outVariable localId="70" height="30" width="185" executionOrderId="0" negated="false">
<position x="580" y="1645"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="67" formalParameter="ENO">
<position x="580" y="1660"/>
<position x="370" y="1660"/>
</connection>
</connectionPointIn>
<expression>Test_BCD_CONVERTED</expression>
</outVariable>
<comment localId="71" height="215" width="680">
<position x="35" y="30"/>
<content>
<xhtml:p><![CDATA[This example shows many features in Beremiz:
1. How to implement python extensions.
2. How to implement basic C extension.
3. How to use C code in IEC POUs.
4. How to call C functions from python code.
5. How to avoid race conditions between IEC, C and python code.
6. How to convert betweet different IEC types.
]]></xhtml:p>
</content>
</comment>
<outVariable localId="72" executionOrderId="0" height="30" width="60" negated="false">
<position x="1065" y="1970"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="76" formalParameter="OUT">
<position x="1065" y="1985"/>
<position x="1025" y="1985"/>
<position x="1025" y="1995"/>
<position x="985" y="1995"/>
</connection>
</connectionPointIn>
<expression>Grumpf</expression>
</outVariable>
<inVariable localId="73" executionOrderId="0" height="30" width="85" negated="false">
<position x="625" y="1940"/>
<connectionPointOut>
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<expression>BOOL#TRUE</expression>
</inVariable>
<inVariable localId="74" executionOrderId="0" height="30" width="70" negated="false">
<position x="625" y="1975"/>
<connectionPointOut>
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<expression>Test_DT</expression>
</inVariable>
<block localId="75" typeName="RTC" instanceName="RTC0" executionOrderId="0" height="90" width="65">
<position x="760" y="1925"/>
<inputVariables>
<variable formalParameter="IN">
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<connection refLocalId="73">
<position x="760" y="1960"/>
<position x="735" y="1960"/>
<position x="735" y="1955"/>
<position x="710" y="1955"/>
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</connectionPointIn>
</variable>
<variable formalParameter="PDT">
<connectionPointIn>
<relPosition x="0" y="70"/>
<connection refLocalId="74">
<position x="760" y="1995"/>
<position x="727" y="1995"/>
<position x="727" y="1990"/>
<position x="695" y="1990"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="Q">
<connectionPointOut>
<relPosition x="65" y="35"/>
</connectionPointOut>
</variable>
<variable formalParameter="CDT">
<connectionPointOut>
<relPosition x="65" y="70"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<block localId="76" typeName="DT_TO_STRING" executionOrderId="0" height="40" width="110">
<position x="875" y="1965"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
<relPosition x="0" y="30"/>
<connection refLocalId="75" formalParameter="CDT">
<position x="875" y="1995"/>
<position x="825" y="1995"/>
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</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="110" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<block localId="77" typeName="ADD" executionOrderId="0" height="60" width="65">
<position x="170" y="1370"/>
<inputVariables>
<variable formalParameter="IN1">
<connectionPointIn>
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<connection refLocalId="59">
<position x="170" y="1400"/>
<position x="130" y="1400"/>
</connection>
</connectionPointIn>
</variable>
<variable formalParameter="IN2">
<connectionPointIn>
<relPosition x="0" y="50"/>
<connection refLocalId="78">
<position x="170" y="1420"/>
<position x="160" y="1420"/>
<position x="160" y="1450"/>
<position x="390" y="1450"/>
<position x="390" y="1400"/>
<position x="380" y="1400"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="65" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<outVariable localId="47" executionOrderId="0" height="30" width="130" negated="false">
<position x="625" y="1335"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="79">
<position x="625" y="1350"/>
<position x="590" y="1350"/>
</connection>
</connectionPointIn>
<expression>Test_Python_Var</expression>
</outVariable>
<inVariable localId="79" executionOrderId="0" height="27" width="30" negated="false">
<position x="560" y="1340"/>
<connectionPointOut>
<relPosition x="30" y="15"/>
</connectionPointOut>
<expression>23</expression>
</inVariable>
<inOutVariable localId="78" executionOrderId="0" height="30" width="100" negatedOut="false" negatedIn="false">
<position x="280" y="1385"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="77" formalParameter="OUT">
<position x="280" y="1400"/>
<position x="235" y="1400"/>
</connection>
</connectionPointIn>
<connectionPointOut>
<relPosition x="100" y="15"/>
</connectionPointOut>
<expression>SomeVarName</expression>
</inOutVariable>
<block localId="80" typeName="MOVE" executionOrderId="0" height="40" width="60">
<position x="570" y="455"/>
<inputVariables>
<variable formalParameter="IN">
<connectionPointIn>
<relPosition x="0" y="30"/>
<connection refLocalId="82">
<position x="578" y="485"/>
<position x="532" y="485"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="60" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<connector name="Connection0" localId="81" height="30" width="130">
<position x="545" y="390"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="4">
<position x="545" y="405"/>
<position x="515" y="405"/>
</connection>
</connectionPointIn>
</connector>
<continuation name="Connection0" localId="82" height="30" width="130">
<position x="410" y="470"/>
<connectionPointOut>
<relPosition x="130" y="15"/>
</connectionPointOut>
</continuation>
</FBD>
</body>
</pou>
<pou name="C_Pragma" pouType="functionBlock">
<interface>
<outputVars>
<variable name="OUT">
<type>
<SINT/>
</type>
</variable>
</outputVars>
<inputVars>
<variable name="IN">
<type>
<SINT/>
</type>
</variable>
</inputVars>
<localVars>
<variable name="COORDS">
<type>
<array>
<dimension lower="0" upper="5"/>
<baseType>
<SINT/>
</baseType>
</array>
</type>
<initialValue>
<arrayValue>
<value>
<simpleValue value="54"/>
</value>
<value>
<simpleValue value="55"/>
</value>
<value>
<simpleValue value="56"/>
</value>
<value>
<simpleValue value="57"/>
</value>
<value>
<simpleValue value="58"/>
</value>
<value>
<simpleValue value="59"/>
</value>
</arrayValue>
</initialValue>
</variable>
<variable name="SMURF">
<type>
<derived name="CPLX_TYPE"/>
</type>
</variable>
</localVars>
<externalVars>
<variable name="Global_RS">
<type>
<derived name="RS"/>
</type>
</variable>
<variable name="Dudiduda">
<type>
<derived name="blups"/>
</type>
</variable>
</externalVars>
</interface>
<body>
<ST>
<xhtml:p><![CDATA[(* hereafter is a C pragma accessing FB interface in a clean way *)
{{
char toPLC;
char fromPLC = GetFbVar(IN);
extern int PLC_C_Call(char, char *);
if(PLC_C_Call(fromPLC, &toPLC)){
SetFbVar(OUT, toPLC);
}
if(0){
/* that code demonstrate C access to complex types */
char somebyte = GetFbVar(COORDS, .table[3]);
SetFbVar(SMURF, somebyte, .FIRSTBYTE);
SetFbVar(COORDS, somebyte, .table[4]);
}
}}
(* If you do not use GetFbVar and SetFbVar macros, expect unexpected behaviour*)
Global_RS();
(* testing access to global struct array *)
Dudiduda[2].FIRSTBYTE := 0;
]]></xhtml:p>
</ST>
</body>
</pou>
<pou name="norm" pouType="function">
<interface>
<returnType>
<REAL/>
</returnType>
<inputVars>
<variable name="IN1">
<type>
<REAL/>
</type>
</variable>
<variable name="IN2">
<type>
<REAL/>
</type>
</variable>
</inputVars>
</interface>
<body>
<ST>
<xhtml:p><![CDATA[NORM := SQRT(IN1 * IN1 + IN2 * IN2);]]></xhtml:p>
</ST>
</body>
</pou>
<pou name="function0" pouType="function">
<interface>
<returnType>
<derived name="datatype0"/>
</returnType>
<inputVars>
<variable name="LocalVar0">
<type>
<derived name="datatype0"/>
</type>
</variable>
</inputVars>
</interface>
<body>
<ST>
<xhtml:p><![CDATA[function0 := LocalVar0;
]]></xhtml:p>
</ST>
</body>
</pou>
</pous>
</types>
<instances>
<configurations>
<configuration name="config">
<resource name="res_pytest">
<task name="pytest_task" priority="0" interval="T#500ms"/>
<globalVars>
<variable name="TOTO">
<type>
<INT/>
</type>
</variable>
</globalVars>
<pouInstance name="pytest_instance" typeName="main_pytest"/>
</resource>
<globalVars>
<variable name="Global_RS">
<type>
<derived name="RS"/>
</type>
</variable>
<variable name="Dudiduda">
<type>
<derived name="blups"/>
</type>
</variable>
<variable name="TUTU">
<type>
<INT/>
</type>
</variable>
</globalVars>
</configuration>
</configurations>
</instances>
</project>