<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342015000801701</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sistema de adquisición de datos meteorológicos en tiempo real con PLC]]></article-title>
<article-title xml:lang="en"><![CDATA[Acquisition system in real-time meteorological data with PLC]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guzmán Luna]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quevedo Nolasco]]></surname>
<given-names><![CDATA[Abel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tijerina Chávez]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro Popoca]]></surname>
<given-names><![CDATA[Martiniano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Programa de Hidrociencias ]]></institution>
<addr-line><![CDATA[Texcoco México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>6</volume>
<numero>8</numero>
<fpage>1701</fpage>
<lpage>1713</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342015000801701&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342015000801701&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342015000801701&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo de este trabajo fue desarrollar un sistema de adquisición de datos meteorológicos en tiempo real utilizando un controlador lógico programable (PLC) como una alternativa dentro de las estaciones meteorológicas comerciales. Para sensar la: temperatura del aire, humedad relativa, radiación solar, precipitación, velocidad y dirección del viento, se usaron sensores comerciales, durante 2013, para probar la estación, en la estación meteorológica del Colegio de Postgraduados, Campus Montecillo. El sistema se compone de un PLC (modelo CX1020, marca Beckhoff), una Laptop donde se instaló una aplicación de monitoreo en tiempo real que se desarrolló en Visual Basic 2010 Express y la base de datos en MySQL para almacenar la información, que se puede usar para fines diversos. La interacción entre el PLC y la aplicación de monitoreo se realizó mediante comunicación inalámbrica Wi-Fi. Se usaron los programas TwinCAT System Manager (para la configuración del hardware) y TwinCAT PLC Control (para la programación del PLC). Se evaluó el funcionamiento del sistema al realizar comparaciones de las lecturas obtenidas de los sensores, contra instrumentos de referencia y sensores de una estación meteorológica Campbell Scientific. Los resultados indican que es factible el uso del PLC en la implementación de estaciones meteorológicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The objective of this work was to develop a system of acquisition of meteorological data in real time, using a programmable logic controller (PLC) as an alternative within the commercial weather stations. For sensing the air temperature, relative humidity, solar radiation, precipitation, wind speed and direction, commercial sensors were used during 2013, to test the station, in the meteorological station of the Graduate College, Campus Montecillo. The system consists of a PLC (CX1020 model, make Beckhoff), a laptop where an application for real-time monitoring that was developed in Visual Basic 2010 Express and the database MySQL was installed to store information, which can be used for several purposes. The interaction between the PLC and the application of monitoring was performed using wireless communication Wi-Fi. TwinCAT System Manager programs were used (for configuring the hardware) and TwinCAT PLC Control (for programming the PLC). The system operation was evaluated to make comparisons of sensor readings obtained against reference instruments and sensors of a meteorological station Campbell Scientific. The results indicate that it is feasible to use the PLC in the implementation of meteorological stations.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estaciones automáticas]]></kwd>
<kwd lng="es"><![CDATA[meteorología]]></kwd>
<kwd lng="es"><![CDATA[sensores]]></kwd>
<kwd lng="es"><![CDATA[tiempo real]]></kwd>
<kwd lng="en"><![CDATA[automatic stations]]></kwd>
<kwd lng="en"><![CDATA[meteorology]]></kwd>
<kwd lng="en"><![CDATA[real time sensors]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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