{"id":18,"date":"2015-03-25T18:17:08","date_gmt":"2015-03-25T22:47:08","guid":{"rendered":"http:\/\/controlreal.com\/es\/?p=18"},"modified":"2019-02-05T09:55:19","modified_gmt":"2019-02-05T14:25:19","slug":"entradas-salidas-discretos","status":"publish","type":"post","link":"https:\/\/controlreal.com\/es\/entradas-salidas-discretos\/","title":{"rendered":"Entradas Salidas discretas"},"content":{"rendered":"<p style=\"text-align: justify;\">Existen una gran variedad de m\u00f3dulos de entradas salidas que le sirven de interfaz al <a href=\"https:\/\/controlreal.com\/es\/controladores-logicos-programables-plc\/\">Controlador L\u00f3gico Programable (PLC)<\/a> para intercambiar informaci\u00f3n con el proceso que est\u00e1 controlando.<\/p>\n<h2 style=\"text-align: justify;\">Descripci\u00f3n de los m\u00f3dulos de entradas salidas<\/h2>\n<p style=\"text-align: justify;\">Los m\u00f3dulos de entrada llevan informaci\u00f3n del estado del proceso hacia el PLC. Los m\u00f3dulos de salida llevan informaci\u00f3n desde el PLC hasta los actuadores que modifican el estado del proceso.<\/p>\n<p style=\"text-align: justify;\">Los Tarjetas de entradas\/salidas (E\/S) tambi\u00e9n se clasifican en seg\u00fan el tipo de se\u00f1al que manejan, as\u00ed tenemos m\u00f3dulos discretos y <a href=\"https:\/\/controlreal.com\/es\/modulos-de-entrada-y-salida-analogicos\/\">m\u00f3dulos anal\u00f3gico<\/a>. Los m\u00f3dulos discretos o digitales manejan se\u00f1ales que s\u00f3lo tienen dos valores, por ejemplo la presencia o ausencia de una se\u00f1al de 120 VAC. Las se\u00f1ales m\u00e1s comunes, tambi\u00e9n conocidos como voltajes de control, son 120 VAC, 220 VAC y 24 VDC, pero existen otros de uso menos frecuente. La siguiente tabla ilustra la agrupaci\u00f3n de los tipos m\u00e1s comunes de se\u00f1ales usadas en las entradas salidas.<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"199\"><\/td>\n<td width=\"200\">Entradas<\/td>\n<td width=\"200\">Salidas<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\" width=\"199\">Digitales<\/td>\n<td width=\"200\">120 VAC<\/td>\n<td width=\"200\">120 VAC<\/td>\n<\/tr>\n<tr>\n<td width=\"200\">220 VAC<\/td>\n<td width=\"200\">220 VAC<\/td>\n<\/tr>\n<tr>\n<td width=\"200\">fuente 24 VDC<\/td>\n<td width=\"200\">24 VDC fuente<\/td>\n<\/tr>\n<tr>\n<td width=\"200\">sumidero 24 VDC<\/td>\n<td width=\"200\">24 VDC sumidero<\/td>\n<\/tr>\n<tr>\n<td width=\"200\"><\/td>\n<td width=\"200\">Rel\u00e9<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\" width=\"199\">Anal\u00f3gicos<\/td>\n<td width=\"200\">4-20 mA<\/td>\n<td width=\"200\">4-20 mA<\/td>\n<\/tr>\n<tr>\n<td width=\"200\">0-10 VDC<\/td>\n<td width=\"200\">0-10 VDC<\/td>\n<\/tr>\n<tr>\n<td width=\"200\">Termopares<\/td>\n<td width=\"200\"><\/td>\n<\/tr>\n<tr>\n<td width=\"200\">RTD<\/td>\n<td width=\"200\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\">Existen otros tipos de m\u00f3dulos de entradas salidas con aplicaciones especiales como son los de conteo r\u00e1pido, para medir pesos, comunicaciones, para manejo de servos controladores entre otros.<\/p>\n<h2><strong>Conexi\u00f3n de las entradas<\/strong><\/h2>\n<p style=\"text-align: justify;\">La conexi\u00f3n de las entradas sigue las reglas de cualquier circuito el\u00e9ctrico b\u00e1sico; t\u00edpicamente hay tres elementos: la fuente de alimentaci\u00f3n, el dispositivo de entrada (por ejemplo un sensor o un bot\u00f3n) y el tercer elemento es la entrada en el m\u00f3dulo de entrada. Cuando el dispositivo de entrada se cierra, la fuente de poder suministra energ\u00eda a la entrada. La siguiente figura muestra el circuito.<\/p>\n<div id=\"attachment_20\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/CircuitoE.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-20\" class=\"wp-image-20 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoE-e1439928302530-300x164.png\" alt=\"CircuitoE. Entradas salidas\" width=\"300\" height=\"164\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoE-e1439928302530-300x164.png 300w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoE-e1439928302530.png 664w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-20\" class=\"wp-caption-text\">Conexi\u00f3n de la entrada<\/p><\/div>\n<p style=\"text-align: justify;\">El voltaje alimentaci\u00f3n, t\u00edpicamente, va a ser alguno de los mostrados en la tabla de arriba. Se debe seleccionar el m\u00f3dulo de entrada adecuado para el voltaje de alimentaci\u00f3n. Los m\u00f3dulos son dise\u00f1ados de tal manera que la impedancia de entrada limite la corriente de entrada a unos pocos miliamperios. La circulaci\u00f3n de la corriente de entrada puede ser en ambos sentido, entrando hacia el m\u00f3dulo o saliendo desde m\u00f3dulo, dependiendo si la conexi\u00f3n es para un circuito AC, DC tipo sumidero o DC tipo fuente respectivamente. Las entradas en un m\u00f3dulo, por lo general se dividen en grupos y cada grupo tiene un com\u00fan, hay m\u00f3dulos que permiten voltajes de alimentaci\u00f3n diferentes por grupo. Cuando las entradas no se agrupan se dice que el m\u00f3dulo es de entradas aisladas. En la siguiente figura se muestran con mayor detalle las conexiones m\u00e1s usadas en los m\u00f3dulos de entrada.<\/p>\n<div id=\"attachment_22\" style=\"width: 274px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/CxAC.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-22\" class=\"wp-image-22 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxAC-e1439928353295-264x300.png\" alt=\"CxAC\" width=\"264\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxAC-e1439928353295-264x300.png 264w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxAC-e1439928353295.png 794w\" sizes=\"auto, (max-width: 264px) 100vw, 264px\" \/><\/a><p id=\"caption-attachment-22\" class=\"wp-caption-text\">AC<\/p><\/div>\n<div id=\"attachment_23\" style=\"width: 264px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/CxNPN.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-23\" class=\"wp-image-23 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxNPN-e1439928373252-254x300.png\" alt=\"CxNPN\" width=\"254\" height=\"300\" \/><\/a><p id=\"caption-attachment-23\" class=\"wp-caption-text\">DC tipo sumidero o NPN<\/p><\/div>\n<div id=\"attachment_24\" style=\"width: 264px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/CxPNP.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-24\" class=\"wp-image-24 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxPNP-e1439928397250-254x300.png\" alt=\"CxPNP\" width=\"254\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxPNP-e1439928397250-254x300.png 254w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CxPNP-e1439928397250.png 765w\" sizes=\"auto, (max-width: 254px) 100vw, 254px\" \/><\/a><p id=\"caption-attachment-24\" class=\"wp-caption-text\">Fuente o PNP<\/p><\/div>\n<p style=\"text-align: justify;\">Es importante hacer notar que cuando se usa un m\u00f3dulo de entrada DC sumidero, el dispositivo de entrada debe ser tipo fuente y cuando se usa un m\u00f3dulo de entrada DC fuente, el dispositivo de entrada debe ser tipo sumidero.<\/p>\n<h2><strong>Conexi\u00f3n de las salidas<\/strong><\/h2>\n<p style=\"text-align: justify;\">La conexi\u00f3n de las salidas es similar a las entradas, con la diferencia de que ahora el elemento que conmuta es la salida y la carga es el dispositivo de salida (por ejemplo bobinas, luces pilotos), tal como muestra la figura.<\/p>\n<div id=\"attachment_21\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/CircuitoS.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21\" class=\"wp-image-21 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoS-e1439928430865-300x149.png\" alt=\"entradas salidas\" width=\"300\" height=\"149\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoS-e1439928430865-300x149.png 300w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/CircuitoS-e1439928430865.png 664w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-21\" class=\"wp-caption-text\">Conexi\u00f3n de la salida<\/p><\/div>\n<p style=\"text-align: justify;\">Se debe escoger el m\u00f3dulo de salida seg\u00fan el voltaje de alimentaci\u00f3n y la carga. Los m\u00f3dulos de salidas de uso son m\u00e1s frecuentes est\u00e1n dise\u00f1ados con triac para voltajes AC, con transistor para voltajes DC y con rel\u00e9s que pueden manejar tanto voltajes AC como DC. Las salidas tambi\u00e9n se agrupan y las salidas que no est\u00e1s agrupada se les denominan salidas aisladas. LAs siguientes figuras muestran los m\u00f3dulos de diferentes tipos de salidas.<\/p>\n<div id=\"attachment_33\" style=\"width: 268px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/SalTriac.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-33\" class=\"wp-image-33 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalTriac-e1439928456252-258x300.png\" alt=\"entradas salidas\" width=\"258\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalTriac-e1439928456252-258x300.png 258w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalTriac-e1439928456252-881x1024.png 881w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalTriac-e1439928456252.png 992w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><\/a><p id=\"caption-attachment-33\" class=\"wp-caption-text\">AC. Triac<\/p><\/div>\n<div id=\"attachment_34\" style=\"width: 237px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/SalNPN.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-34\" class=\"wp-image-34 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalNPN-e1439928489778-227x300.png\" alt=\"SalNPN\" width=\"227\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalNPN-e1439928489778-227x300.png 227w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalNPN-e1439928489778-775x1024.png 775w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalNPN-e1439928489778.png 867w\" sizes=\"auto, (max-width: 227px) 100vw, 227px\" \/><\/a><p id=\"caption-attachment-34\" class=\"wp-caption-text\">DC tipo sumidero o NPN<\/p><\/div>\n<div id=\"attachment_35\" style=\"width: 239px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/SalPNP.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35\" class=\"wp-image-35 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalPNP-e1439928515408-229x300.png\" alt=\"SalPNP\" width=\"229\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalPNP-e1439928515408-229x300.png 229w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalPNP-e1439928515408-780x1024.png 780w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalPNP-e1439928515408.png 871w\" sizes=\"auto, (max-width: 229px) 100vw, 229px\" \/><\/a><p id=\"caption-attachment-35\" class=\"wp-caption-text\">DC tipo fuente o PNP<\/p><\/div>\n<div id=\"attachment_36\" style=\"width: 252px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/controlreal.com\/es\/wp-content\/uploads\/2015\/03\/SalRele.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-36\" class=\"wp-image-36 size-medium\" src=\"http:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalRele-e1439928538495-242x300.png\" alt=\"SalRele\" width=\"242\" height=\"300\" srcset=\"https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalRele-e1439928538495-242x300.png 242w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalRele-e1439928538495-826x1024.png 826w, https:\/\/controlreal.com\/es\/cr-content\/uploads\/2015\/03\/SalRele-e1439928538495.png 928w\" sizes=\"auto, (max-width: 242px) 100vw, 242px\" \/><\/a><p id=\"caption-attachment-36\" class=\"wp-caption-text\">Salida de rel\u00e9<\/p><\/div>\n<p><a href=\"https:\/\/controlreal.com\/es?p=39\">M\u00f3dulos entradas salidas anal\u00f3gicos<\/a><\/p>\n<p style=\"text-align: center;\">\n","protected":false},"excerpt":{"rendered":"<p>Existen una gran variedad de m\u00f3dulos de entradas salidas que le sirven de interfaz al Controlador L\u00f3gico Programable (PLC) para intercambiar informaci\u00f3n con el proceso que est\u00e1 controlando. Descripci\u00f3n de los m\u00f3dulos de entradas salidas Los m\u00f3dulos de entrada llevan&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/controlreal.com\/es\/entradas-salidas-discretos\/\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":2,"featured_media":23,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[129,130,131,132,102,125,126,123,124,67,20,128,90,68,21,127,87],"class_list":["post-18","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-es","tag-129","tag-130","tag-131","tag-24-vdc-vac","tag-conexion","tag-digital","tag-digitales","tag-discreta","tag-discretas","tag-entrada","tag-entradas","tag-npn-pnp","tag-rele","tag-salida","tag-salidas","tag-transistor","tag-triac"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Entradas Salidas discretas - Control Real Espa\u00f1ol<\/title>\n<meta name=\"description\" content=\"M\u00f3dulos de entradas salidas. 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