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<?xml version="1.0" encoding="utf-8"?>

<project xmlns="http://www.plcopen.org/xml/tc6_0200">

  <fileHeader companyName="" productName="CODESYS" productVersion="CODESYS V3.5 SP11" creationDateTime="2018-07-16T11:54:05.9004452" />

  <contentHeader name="Raspberry 1-wire DS18B20" version="1.3.0.0" modificationDateTime="2015-11-24T04:28:44" organization="3S - Smart Software Solutions GmbH" author="3S - Smart Software Solutions GmbH">

    <Comment>Library containing device support for DS18B20 under Raspberry Pi</Comment>

    <coordinateInfo>

      <fbd>

        <scaling x="1" y="1" />

      </fbd>

      <ld>

        <scaling x="1" y="1" />

      </ld>

      <sfc>

        <scaling x="1" y="1" />

      </sfc>

    </coordinateInfo>

    <addData>

      <data name="http://www.3s-software.com/plcopenxml/projectinformation" handleUnknown="implementation">

        <ProjectInformation>

          <property name="Author" type="string">3S - Smart Software Solutions GmbH</property>

          <property name="Company" type="string">3S - Smart Software Solutions GmbH</property>

          <property name="DefaultNamespace" type="string">DS18B20</property>

          <property name="Description" type="string">Library containing device support for DS18B20 under Raspberry Pi</property>

          <property name="Placeholder" type="string">PlaceholderTemplate</property>

          <property name="Project" type="string">OneWire_DS18B20</property>

          <property name="Released" type="boolean">false</property>

          <property name="Title" type="string">Raspberry 1-wire DS18B20</property>

          <property name="Version" type="version">1.3.0.0</property>

          <property name="library-category-list" type="library-category-list" />

        </ProjectInformation>

      </data>

    </addData>

  </contentHeader>

  <types>

    <dataTypes />

    <pous>

      <pou name="OneWire_DS18B20" pouType="functionBlock">

        <interface>

          <outputVars>

            <variable name="rTemp">

              <type>

                <REAL />

              </type>

            </variable>

            <variable name="stdTimeStamp">

              <type>

                <derived name="RTS_SYSTIMEDATE" />

              </type>

            </variable>

            <variable name="xSignalOk">

              <type>

                <BOOL />

              </type>

            </variable>

          </outputVars>

          <addData>

            <data name="http://www.3s-software.com/plcopenxml/pouinheritance" handleUnknown="implementation">

              <Inheritance>

                <Extends>OneWire</Extends>

              </Inheritance>

            </data>

          </addData>

        </interface>

        <body>

          <ST>

            <xhtml xmlns="http://www.w3.org/1999/xhtml">super^();</xhtml>

          </ST>

        </body>

        <addData>

          <data name="http://www.3s-software.com/plcopenxml/method" handleUnknown="implementation">

            <Method name="AfterReadInputs">

              <interface>

                <returnType>

                  <INT />

                </returnType>

                <documentation>

                  <xhtml xmlns="http://www.w3.org/1999/xhtml"> This method can be overloaded by extending FBs.

 It is used to read in the inputs of the device in the beginning of the cycle.

 Always including a call of the base implementation with super^.AfterReadInputs()

 In the base implementation, the body of the FB is called.</xhtml>

                </documentation>

              </interface>

              <body>

                <ST>

                  <xhtml xmlns="http://www.w3.org/1999/xhtml">Evaluate();

SUPER^.AfterReadInputs();

</xhtml>

                </ST>

              </body>

              <addData />

            </Method>

          </data>

          <data name="http://www.3s-software.com/plcopenxml/method" handleUnknown="implementation">

            <Method name="Evaluate">

              <interface>

                <localVars>

                  <variable name="fr">

                    <type>

                      <derived name="FileReader" />

                    </type>

                  </variable>

                  <variable name="hFile">

                    <type>

                      <derived name="RTS_IEC_HANDLE" />

                    </type>

                  </variable>

                  <variable name="result">

                    <type>

                      <derived name="RTS_IEC_RESULT" />

                    </type>

                  </variable>

                  <variable name="udiRead">

                    <type>

                      <UDINT />

                    </type>

                  </variable>

                  <variable name="sPath">

                    <type>

                      <string />

                    </type>

                  </variable>

                  <variable name="sData">

                    <type>

                      <string />

                    </type>

                  </variable>

                  <variable name="i">

                    <type>

                      <INT />

                    </type>

                  </variable>

                </localVars>

                <addData>

                  <data name="http://www.3s-software.com/plcopenxml/attributes" handleUnknown="implementation">

                    <Attributes>

                      <Attribute Name="conditionalshow" Value="" />

                    </Attributes>

                  </data>

                </addData>

              </interface>

              <body>

                <ST>

                  <xhtml xmlns="http://www.w3.org/1999/xhtml">IF _pMaster &lt;&gt; 0 THEN

	sPath := DataPath;

	hFile := SysFileOpen(sPath, ACCESS_MODE.AM_READ, ADR(result));

	IF hFile &lt;&gt; RTS_INVALID_HANDLE THEN

		fr(hFile := hFile);

		IF fr.GetLine(ADR(sData), SIZEOF(sData)) AND LEN(sData) &gt; 3 THEN

			IF RIGHT(sData, 3) = 'YES' THEN

				xSignalOk := TRUE;

			ELSE

				xSignalOk := FALSE;

			END_IF

		ELSE

			xSignalOk := FALSE;

		END_IF

		IF xSignalOk THEN

			IF fr.GetLine(ADR(sData), SIZEOF(sData)) THEN

				i := FIND(sData, 't=');

				IF i &gt; 0 THEN

					sData := RIGHT(sData, LEN(sData) - i - 1);

					IF sData = '85000' THEN

						xSignalOk := FALSE;

					ELSE

						rTemp := STRING_TO_REAL(sData) * 1E-3;

						SysTimeRtcConvertUtcToDate(SysTimeRtcGet(result), stdTimeStamp);

					END_IF

				ELSE

					xSignalOk := FALSE;

				END_IF

			END_IF

		END_IF

	ELSE

		xSignalOk := FALSE;

	END_IF

	SysFileClose(hFile);

END_IF

</xhtml>

                </ST>

              </body>

              <addData />

            </Method>

          </data>

          <data name="http://www.3s-software.com/plcopenxml/property" handleUnknown="implementation">

            <Property name="Operational">

              <interface>

                <returnType>

                  <BOOL />

                </returnType>

                <documentation>

                  <xhtml xmlns="http://www.w3.org/1999/xhtml"> This property has to return TRUE, when the device is configured and running</xhtml>

                </documentation>

              </interface>

              <GetAccessor>

                <interface>

                  <addData>

                    <data name="http://www.3s-software.com/plcopenxml/attributes" handleUnknown="implementation">

                      <Attributes>

                        <Attribute Name="hide" Value="" />

                      </Attributes>

                    </data>

                  </addData>

                </interface>

                <body>

                  <ST>

                    <xhtml xmlns="http://www.w3.org/1999/xhtml">Operational := xSignalOk;</xhtml>

                  </ST>

                </body>

                <addData />

              </GetAccessor>

              <addData />

            </Property>

          </data>

        </addData>

      </pou>

    </pous>

  </types>

  <instances>

    <configurations />

  </instances>

  <addData>

    <data name="http://www.3s-software.com/plcopenxml/libraries" handleUnknown="implementation">

      <Libraries>

        <Library Name="#Standard" Namespace="Standard" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" DefaultResolution="Standard, * (System)" />

        <Library Name="#IoStandard" Namespace="IoStandard" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" DefaultResolution="IoStandard, * (System)" />

        <Library Name="#Raspberry Pi Peripherals" Namespace="Raspi" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" DefaultResolution="Raspberry Pi Peripherals, * (3S - Smart Software Solutions GmbH)" />

        <Library Name="#SysFile" Namespace="SysFile" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" DefaultResolution="SysFile, * (System)" />

        <Library Name="#SysTimeRtc" Namespace="SysTimeRtc" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" DefaultResolution="SysTimeRtc, * (System)" />

        <Library Name="SysTypes Interfaces, * (System)" Namespace="SysTypes" HideWhenReferencedAsDependency="false" PublishSymbolsInContainer="false" SystemLibrary="false" LinkAllContent="false" />

        <addData />

      </Libraries>

    </data>

  </addData>

</project>