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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[Sleep here is bad. It blocks other py_eval instances. Whith a wxGlade GUI, GUI freeze for a second.]]></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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<outVariable localId="42" height="30" width="90" 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"/>
</connection>
</connectionPointIn>
<expression>Test_String</expression>
</outVariable>
<outVariable localId="43" height="30" width="80" 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="55" executionOrderId="0" negated="false">
<position x="60" y="2014"/>
<connectionPointOut>
<relPosition x="55" 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>
<relPosition x="0" y="31"/>
<connection refLocalId="58">
<position x="265" y="1960"/>
<position x="205" y="1960"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="130" y="31"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="50" height="30" width="105" executionOrderId="0" negated="false">
<position x="75" y="2275"/>
<connectionPointOut>
<relPosition x="105" 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"/>
<inputVariables>
<variable formalParameter="IN1" negated="true">
<connectionPointIn>
<relPosition x="0" y="35"/>
<connection refLocalId="50">
<position x="240" y="2290"/>
<position x="180" y="2290"/>
</connection>
</connectionPointIn>
</variable>
<variable formalParameter="IN2">
<connectionPointIn>
<relPosition x="0" y="70"/>
<connection refLocalId="52">
<position x="240" y="2325"/>
<position x="180" y="2325"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="70" y="35"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="52" height="30" width="105" executionOrderId="0" negated="false">
<position x="75" y="2310"/>
<connectionPointOut>
<relPosition x="105" y="15"/>
</connectionPointOut>
<expression>BOOL#TRUE</expression>
</inVariable>
<outVariable localId="13" height="30" width="105" executionOrderId="0" negated="false">
<position x="385" y="2275"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="51" formalParameter="OUT">
<position x="385" y="2290"/>
<position x="310" y="2290"/>
</connection>
</connectionPointIn>
<expression>Global_RS.S</expression>
</outVariable>
<outVariable localId="20" height="30" width="105" executionOrderId="0" negated="false">
<position x="385" y="2390"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="41" formalParameter="OUT">
<position x="385" y="2405"/>
<position x="310" y="2405"/>
</connection>
</connectionPointIn>
<expression>Global_RS.R1</expression>
</outVariable>
<inVariable localId="24" height="30" width="105" executionOrderId="0" negated="false">
<position x="75" y="2390"/>
<connectionPointOut>
<relPosition x="105" y="15"/>
</connectionPointOut>
<expression>Global_RS.Q1</expression>
</inVariable>
<block localId="41" width="70" height="85" typeName="OR" executionOrderId="0">
<position x="240" y="2370"/>
<inputVariables>
<variable formalParameter="IN1">
<connectionPointIn>
<relPosition x="0" y="35"/>
<connection refLocalId="24">
<position x="240" y="2405"/>
<position x="180" y="2405"/>
</connection>
</connectionPointIn>
</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>
</inVariable>
<outVariable localId="54" height="30" width="135" executionOrderId="0" negated="false">
<position x="930" y="1774"/>
<connectionPointIn>
<relPosition x="0" y="16"/>
<connection refLocalId="55" formalParameter="OUT">
<position x="930" y="1790"/>
<position x="855" y="1790"/>
</connection>
</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>
<relPosition x="0" y="16"/>
<connection refLocalId="37" formalParameter="OUT">
<position x="580" y="1790"/>
<position x="520" y="1790"/>
</connection>
</connectionPointIn>
<connectionPointOut>
<relPosition x="75" y="16"/>
</connectionPointOut>
<expression>Test_TOD</expression>
</inOutVariable>
<inVariable localId="49" height="30" width="30" executionOrderId="0" negated="false">
<position x="160" y="2510"/>
<connectionPointOut>
<relPosition x="30" y="15"/>
</connectionPointOut>
<expression>42</expression>
</inVariable>
<outVariable localId="57" height="30" width="50" executionOrderId="0" negated="false">
<position x="240" y="2510"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="49">
<position x="240" y="2525"/>
<position x="190" y="2525"/>
</connection>
</connectionPointIn>
<expression>TOTO</expression>
</outVariable>
<outVariable localId="56" height="30" width="50" executionOrderId="0" negated="false">
<position x="240" y="2550"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="49">
<position x="240" y="2565"/>
<position x="215" y="2565"/>
<position x="215" y="2525"/>
<position x="190" y="2525"/>
</connection>
</connectionPointIn>
<expression>TUTU</expression>
</outVariable>
<inVariable localId="58" height="30" width="145" executionOrderId="0" negated="false">
<position x="60" y="1944"/>
<connectionPointOut>
<relPosition x="145" y="16"/>
</connectionPointOut>
<expression>Second_Python_Var</expression>
</inVariable>
<outVariable localId="47" height="30" width="125" executionOrderId="0" negated="false">
<position x="200" y="1385"/>
<connectionPointIn>
<relPosition x="0" y="15"/>
<connection refLocalId="59">
<position x="200" y="1400"/>
<position x="130" y="1400"/>
</connection>
</connectionPointIn>
<expression>Test_Python_Var</expression>
</outVariable>
<inVariable localId="59" height="30" width="30" executionOrderId="0" negated="false">
<position x="100" y="1385"/>
<connectionPointOut>
<relPosition x="30" y="15"/>
</connectionPointOut>
<expression>23</expression>
</inVariable>
<block localId="61" typeName="function0" executionOrderId="0" height="45" width="110">
<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="720" y="1200"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="110" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="62" executionOrderId="0" height="30" width="55" negated="false">
<position x="665" y="1185"/>
<connectionPointOut>
<relPosition x="55" y="15"/>
</connectionPointOut>
<expression>fefvsd</expression>
</inVariable>
<outVariable localId="63" executionOrderId="0" height="30" width="55" 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="870" y="1200"/>
</connection>
</connectionPointIn>
<expression>fefvsd</expression>
</outVariable>
<comment localId="53" height="65" 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="65" executionOrderId="0" negated="false">
<position x="950" y="720"/>
<connectionPointOut>
<relPosition x="65" 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="130" executionOrderId="0" negated="false">
<position x="60" y="1685"/>
<connectionPointOut>
<relPosition x="130" y="15"/>
</connectionPointOut>
<expression>Test_BCD_WRONG</expression>
</inVariable>
<block localId="67" width="105" 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="190" y="1700"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="ENO">
<connectionPointOut>
<relPosition x="105" y="40"/>
</connectionPointOut>
</variable>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="105" y="80"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<outVariable localId="68" height="30" width="185" 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="370" y="1700"/>
</connection>
</connectionPointIn>
<expression>Test_BCD_WRONG_RESULT</expression>
</outVariable>
<comment localId="69" height="135" 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="170" 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>
</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>
</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();
]]></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" interval="T#1ms" priority="0"/>
<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="TUTU">
<type>
<INT/>
</type>
</variable>
</globalVars>
</configuration>
</configurations>
</instances>
</project>