{"id":19793,"date":"2026-01-17T12:57:47","date_gmt":"2026-01-17T04:57:47","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=19793"},"modified":"2026-03-17T18:03:01","modified_gmt":"2026-03-17T10:03:01","slug":"3-methods-for-counting-using-safety-light-curtains-and-counters","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/es\/3-methods-for-counting-using-safety-light-curtains-and-counters\/","title":{"rendered":"3 m\u00e9todos de recuento mediante cortinas \u00f3pticas de seguridad y contadores"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"19793\" class=\"elementor elementor-19793\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d78a698 e-flex e-con-boxed e-con e-parent\" data-id=\"d78a698\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eaf7bde elementor-widget elementor-widget-text-editor\" data-id=\"eaf7bde\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">\u00bfNecesita contar los veh\u00edculos que entran y salen de un aparcamiento, o contar las mercanc\u00edas que pasan por cintas transportadoras a distintas alturas en una zona determinada?<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-305af97 elementor-widget elementor-widget-image\" data-id=\"305af97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt.jpg\" class=\"attachment-large size-large wp-image-19789\" alt=\"Las cortinas \u00f3pticas de seguridad se utilizan para contar el n\u00famero de bandejas en la cinta transportadora\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Safety-light-curtains-are-used-to-count-the-number-of-trays-on-the-conveyor-belt-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b5b736 elementor-widget elementor-widget-text-editor\" data-id=\"3b5b736\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/lorentzzi.com\/es\/products\/proximity-sensor\/sensor-fotoelectrico\/through-beam-photoelectric-sensor-m12-thread\/\"><span style=\"font-weight: 400;\"><span style=\"color: #ff0000;\">Barreras fotoel\u00e9ctricas de barrera punto a punto<\/span><\/span><\/a><span style=\"font-weight: 400;\"> son una opci\u00f3n habitual, pero plantean notables limitaciones en las aplicaciones pr\u00e1cticas.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Sin embargo, los modelos de veh\u00edculos y los art\u00edculos de recuento tienen alturas diferentes, y un montaje incorrecto del sensor, ya sea demasiado bajo o demasiado alto, provocar\u00e1 f\u00e1cilmente imprecisiones en el recuento.<\/span><\/p><p><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/safety-light-curtain-sensor\/\"><span style=\"font-weight: 400;\">Cortinas \u00f3pticas de seguridad<\/span><\/a><\/span><span style=\"font-weight: 400;\"> son, por tanto, una alternativa mucho mejor. Permiten detectar objetos dentro de un rango de altura fijo (por ejemplo, desde una altura de montaje de 0,5 metros hasta su distancia m\u00e1xima de detecci\u00f3n). Esta cobertura de altura aumenta dr\u00e1sticamente la precisi\u00f3n de la detecci\u00f3n, garantizando una identificaci\u00f3n fiable de veh\u00edculos de todos los tama\u00f1os.<\/span><\/p><p><span style=\"font-weight: 400;\">Ahora que sabe que las cortinas \u00f3pticas de seguridad son la mejor opci\u00f3n, \u00bfc\u00f3mo utilizarlas para contar objetos totales con precisi\u00f3n?<\/span><\/p><p><span style=\"font-weight: 400;\">A continuaci\u00f3n, presentamos tres soluciones rentables y llave en mano para esta aplicaci\u00f3n.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d2bad3 elementor-widget elementor-widget-heading\" data-id=\"4d2bad3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9todo 1: Utilizaci\u00f3n de una cortina \u00f3ptica de seguridad y un contador electromagn\u00e9tico acumulativo<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99b6223 elementor-widget elementor-widget-text-editor\" data-id=\"99b6223\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Cuando se utiliza una cortina \u00f3ptica de seguridad para contar objetos, la primera soluci\u00f3n que se nos ocurre es utilizarla con un <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/categoria-producto\/timer-switch-and-counter\/pulse-counter\/\"><span style=\"font-weight: 400;\">contador acumulador electromec\u00e1nico<\/span><\/a><\/span><span style=\"font-weight: 400;\">, que es la m\u00e1s f\u00e1cil de aplicar.<\/span><\/p><p><span style=\"font-weight: 400;\">Cuando un objeto atraviesa la barrera formada por un emisor y un receptor de cortina fotoel\u00e9ctrica de seguridad, genera una salida de tensi\u00f3n que activa el contador del acumulador para que cuente una vez.<\/span><\/p><p><span style=\"font-weight: 400;\">Dado que la salida de una cortina de luz de seguridad puede ser un transistor PNP, NPN o una salida de rel\u00e9, el diagrama de cableado diferir\u00e1 en funci\u00f3n de la salida.<\/span><\/p><p><span style=\"font-weight: 400;\">En la siguiente secci\u00f3n, te mostrar\u00e9 c\u00f3mo cablearlo correctamente.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20c78c3 elementor-widget elementor-widget-heading\" data-id=\"20c78c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00bfC\u00f3mo cablear?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a89cef elementor-widget elementor-widget-text-editor\" data-id=\"1a89cef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Para cortinas de seguridad con <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/pnp-vs-npn-proximity-sensors-key-differences-wiring-diagram-and-how-to-choose\/\"><span style=\"font-weight: 400;\">NPN o PNP<\/span><\/a><\/span><span style=\"font-weight: 400;\"> salidas de transistor, puede cablearlas como se muestra en el siguiente diagrama:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d5b8d0 elementor-widget elementor-widget-image\" data-id=\"8d5b8d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram.jpg\" class=\"attachment-large size-large wp-image-19786\" alt=\"Esquema el\u00e9ctrico de la cortina de seguridad y del acumulador electromagn\u00e9tico Lorentzzi\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-electromagnetic-accumulator-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-867a89a elementor-widget elementor-widget-text-editor\" data-id=\"867a89a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Como nuestros contadores acumuladores electromec\u00e1nicos no tienen terminales positivo y negativo, puede cablearlos f\u00e1cilmente sin preocuparse de invertir la conexi\u00f3n.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc4e9b1 elementor-widget elementor-widget-heading\" data-id=\"cc4e9b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Ventajas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c4dcea elementor-widget elementor-widget-text-editor\" data-id=\"7c4dcea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">El cableado es sencillo y adecuado para principiantes.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">No se necesitan conocimientos de programaci\u00f3n; el problema del recuento puede resolverse s\u00f3lo con hardware.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e037bc7 elementor-widget elementor-widget-heading\" data-id=\"e037bc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Desventajas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8848f29 elementor-widget elementor-widget-text-editor\" data-id=\"8848f29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u00f3lo puede utilizarse para contar el n\u00famero total. Si desea emitir una alarma cuando se alcanza un n\u00famero preestablecido, habr\u00e1 un problema.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Si desea detener la m\u00e1quina tras alcanzar un valor preestablecido, necesitar\u00e1 una persona dedicada a obtener los resultados del recuento, lo que puede suponer una p\u00e9rdida de recursos humanos.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Al contar personas en aparcamientos o puertas autom\u00e1ticas, pueden contarse acciones como que un coche d\u00e9 marcha atr\u00e1s al entrar o que una persona pase por la puerta y luego vuelva, lo que puede dar lugar a errores en el recuento total.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dado que pocos contadores acumulativos tienen capacidad de comunicaci\u00f3n, la supervisi\u00f3n a distancia puede resultar dif\u00edcil; por ejemplo, es<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3be75d elementor-widget elementor-widget-heading\" data-id=\"b3be75d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9todo 2: Utilizar una cortina \u00f3ptica de seguridad y un contador preestablecido\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b51524 elementor-widget elementor-widget-text-editor\" data-id=\"2b51524\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Este m\u00e9todo utiliza una cortina \u00f3ptica de seguridad junto con un rel\u00e9 contador preajustado (como nuestro <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/products\/timer-switch-and-counter\/pulse-counter\/dh48j-110vac-220vac-preset-digital-counter-relay\/\"><span style=\"font-weight: 400;\">Rel\u00e9 contador preajustado DH48J<\/span><\/a><\/span><span style=\"font-weight: 400;\">). Su principal ventaja es que permite el recuento por lotes y emite una alarma al finalizar.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ef4294 elementor-widget elementor-widget-heading\" data-id=\"6ef4294\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">C\u00f3mo funciona:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d153fda elementor-widget elementor-widget-text-editor\" data-id=\"d153fda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Cuando un objeto interrumpe el haz luminoso entre el emisor y el receptor de la cortina \u00f3ptica de seguridad, se dispara una se\u00f1al de recuento. El rel\u00e9 de recuento se incrementa hasta alcanzar el valor preestablecido, momento en el que emite una se\u00f1al de control (por ejemplo, para activar una alarma). A continuaci\u00f3n, este ciclo se reinicia, lo que permite un recuento de lotes eficaz y repetido.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdab3f5 elementor-widget elementor-widget-heading\" data-id=\"fdab3f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Consideraciones sobre el cableado:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36ac774 elementor-widget elementor-widget-text-editor\" data-id=\"36ac774\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nuestros rel\u00e9s contadores admiten varios tipos de entrada (PNP, NPN o rel\u00e9). Es crucial asegurarse de la compatibilidad entre el circuito de entrada del rel\u00e9 contador y el tipo de se\u00f1al de salida de la cortina \u00f3ptica de seguridad antes de la conexi\u00f3n. Consulte el siguiente diagrama de cableado:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb32ba9 elementor-widget elementor-widget-image\" data-id=\"eb32ba9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram.jpg\" class=\"attachment-large size-large wp-image-19787\" alt=\"Lorentzzi cortina de luz de seguridad y contador preestablecido diagrama de cableado\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-and-preset-counter-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5769d92 elementor-widget elementor-widget-heading\" data-id=\"5769d92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Ventajas:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74b212f elementor-widget elementor-widget-text-editor\" data-id=\"74b212f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Recuento de lotes<\/b><span style=\"font-weight: 400;\">: Ideal para procesos por lotes. Para ello, el rel\u00e9 contador puede utilizarse de forma independiente o con contadores adicionales.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Salida de alarma<\/b><span style=\"font-weight: 400;\">: Al alcanzar el recuento establecido, la salida del rel\u00e9 puede activar directamente una alarma o un indicador, proporcionando un estado de finalizaci\u00f3n claro.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b style=\"font-style: inherit;\">Integraci\u00f3n del control<\/b><span style=\"font-weight: 400;\">: La se\u00f1al de salida puede utilizarse para controlar otros dispositivos (por ejemplo, parar un motor), lo que facilita las secuencias de control automatizadas.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-221049a elementor-widget elementor-widget-heading\" data-id=\"221049a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Desventajas:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a795f2 elementor-widget elementor-widget-text-editor\" data-id=\"2a795f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Susceptible de recuentos duplicados<\/b><span style=\"font-weight: 400;\">: Si el mismo objeto entra y sale repetidamente de la zona de detecci\u00f3n, se contar\u00e1 varias veces.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Flexibilidad limitada<\/b><span style=\"font-weight: 400;\">: El sistema no es programable, lo que restringe su capacidad para realizar l\u00f3gicas complejas y condicionales.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b style=\"font-style: inherit;\">Falta de conectividad<\/b><span style=\"font-weight: 400;\">: Sin capacidad de comunicaci\u00f3n (por ejemplo, puerto RS485), no es posible la supervisi\u00f3n remota ni la integraci\u00f3n de datos.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6291e5a elementor-widget elementor-widget-heading\" data-id=\"6291e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9todo 3: Utilizaci\u00f3n de una cortina \u00f3ptica de seguridad, un PLC y una HMI<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5354369 elementor-widget elementor-widget-text-editor\" data-id=\"5354369\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Conectar una cortina \u00f3ptica de seguridad a un PLC no s\u00f3lo es la mejor soluci\u00f3n para el recuento de objetos, sino que tambi\u00e9n permite realizar tareas m\u00e1s complejas.<\/span><\/p><p><span style=\"font-weight: 400;\">Combinando estos dos productos y programando el PLC en consecuencia, podemos evitar los errores de recuento que se producen en los m\u00e9todos uno y dos.<\/span><\/p><p><span style=\"font-weight: 400;\">Veamos ahora con m\u00e1s detalle su principio de funcionamiento, m\u00e9todos de cableado y ventajas e inconvenientes.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66e5a0f elementor-widget elementor-widget-heading\" data-id=\"66e5a0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">C\u00f3mo funciona<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-439e740 elementor-widget elementor-widget-text-editor\" data-id=\"439e740\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En este m\u00e9todo de recuento, cuando un objeto bloquea el haz de luz de la cortina \u00f3ptica de seguridad, \u00e9sta env\u00eda una se\u00f1al de impulsos de 24 VCC o 12 VCC a un punto de entrada designado del PLC.<\/span><\/p><p><span style=\"font-weight: 400;\">El programa de control PLC escrito por el usuario explora continuamente esta se\u00f1al de entrada.<\/span><\/p><p><span style=\"font-weight: 400;\">Cada vez que se detecta una se\u00f1al v\u00e1lida, el registro del contador aumenta y el resultado del recuento se muestra en la interfaz hombre-m\u00e1quina (IHM) a trav\u00e9s de Ethernet.<\/span><\/p><p><span style=\"font-weight: 400;\">Adem\u00e1s, se puede implementar una l\u00f3gica m\u00e1s avanzada, como activar una alarma para que suene un zumbador.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25dbfe1 elementor-widget elementor-widget-heading\" data-id=\"25dbfe1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00bfC\u00f3mo cablear los dos productos?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3101d14 elementor-widget elementor-widget-text-editor\" data-id=\"3101d14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">El siguiente diagrama de cableado le mostrar\u00e1 c\u00f3mo conectar diferentes salidas de cortinas de luz de seguridad a un PLC Siemens S7-200 SMART.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-946a056 elementor-widget elementor-widget-image\" data-id=\"946a056\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram.jpg\" class=\"attachment-large size-large wp-image-19788\" alt=\"Cortina de luz de seguridad Lorentzzi, diagrama de cableado de PLC y HMI Siemense\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/Lorentzzi-safety-light-curtain-siemense-PLC-and-HMI-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7645fe elementor-widget elementor-widget-heading\" data-id=\"a7645fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Ventajas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b4d645 elementor-widget elementor-widget-text-editor\" data-id=\"6b4d645\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><b>Gran flexibilidad e inteligencia<\/b><span style=\"font-weight: 400;\">: La naturaleza programable de los PLC les permite aplicar una l\u00f3gica de recuento compleja e integrarse perfectamente con otros procesos como la clasificaci\u00f3n, el envasado o el registro de datos.<\/span><\/li><li aria-level=\"1\"><b>Contra el doble recuento<\/b><span style=\"font-weight: 400;\">: Mediante el uso de una fotoc\u00e9lula adicional, podemos conseguir un recuento antidoble. Por ejemplo, en el ejemplo que se muestra a continuaci\u00f3n, si la secuencia de la se\u00f1al de salida del objeto detectado es 1-&gt;2-&gt;3, s\u00f3lo se contar\u00e1 una vez; si la secuencia es diferente, el PLC no contar\u00e1.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5540c4c elementor-widget elementor-widget-image\" data-id=\"5540c4c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt.jpg\" class=\"attachment-large size-large wp-image-19810\" alt=\"La bandeja atraviesa la cortina \u00f3ptica de seguridad de la cinta transportadora\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/01\/The-tray-passes-through-the-safety-light-curtain-on-the-conveyor-belt-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31f74c6 elementor-widget elementor-widget-text-editor\" data-id=\"31f74c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><b style=\"font-style: inherit;\">Potentes capacidades de comunicaci\u00f3n<\/b><span style=\"font-weight: 400;\">: La mayor\u00eda de los PLC admiten protocolos de comunicaci\u00f3n industrial (Ethernet\/IP, Profinet, Modbus, etc.), lo que permite la supervisi\u00f3n remota en tiempo real y el suministro de datos a sistemas HMI o SCADA\/MES.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68be226 elementor-widget elementor-widget-heading\" data-id=\"68be226\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Desventajas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-503b627 elementor-widget elementor-widget-text-editor\" data-id=\"503b627\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li aria-level=\"1\"><b>Coste elevado<\/b><span style=\"font-weight: 400;\">: Todos estos componentes se pueden encontrar en Amazon, y los c\u00e1lculos muestran que el precio de estos componentes se acercar\u00e1 a $1.000 (1.000 mm cortina de luz de seguridad: $499.00(Si se compra a nosotros, es s\u00f3lo alrededor de $260.0), Siemens PLC: $220.00, dos pares de sensores fotoel\u00e9ctricos de barrera: $100.00), mientras que los dos primeros m\u00e9todos cuestan menos de $100 (si se compran a nosotros), por lo que esta soluci\u00f3n es m\u00e1s cara.<\/span><\/li><li aria-level=\"1\"><b style=\"font-style: inherit;\">Se requieren conocimientos de programaci\u00f3n<\/b><span style=\"font-weight: 400;\">: Si no est\u00e1 familiarizado con los lenguajes de programaci\u00f3n de PLC, le resultar\u00e1 dif\u00edcil utilizarlos correctamente y perder\u00e1 mucho tiempo aprendi\u00e9ndolos.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43f3779 elementor-widget elementor-widget-heading\" data-id=\"43f3779\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusi\u00f3n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-befc7a8 elementor-widget elementor-widget-text-editor\" data-id=\"befc7a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En resumen, existen tres m\u00e9todos pr\u00e1cticos para el recuento de objetos con cortinas \u00f3pticas de seguridad: emparejamiento con un contador acumulativo, un contador preestablecido y una combinaci\u00f3n PLC + HMI.<\/span><\/p><p><span style=\"font-weight: 400;\">Si busca cortinas \u00f3pticas de seguridad, contadores acumulativos y rel\u00e9s contadores preajustados fiables, de alta calidad y a un precio razonable, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/\"><span style=\"font-weight: 400;\">Lorentzzi El\u00e9ctrico<\/span><\/a><\/span><span style=\"font-weight: 400;\"> puede proporcionarle estos productos. Puede ponerse en contacto con nosotros enviando un correo electr\u00f3nico a <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"mailto:shonxu@lorentzzi.com\"><span style=\"font-weight: 400;\">shonxu@lorentzzi.com<\/span><\/a><\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Do you need to count vehicles entering and exiting a parking lot, or tally goods passing through conveyor belts at varying heights in a designated area? Point-to-point through-beam photoelectric sensors are a common option, yet they pose notable limitations in practical applications.\u00a0 But, vehicle models and tally goods feature different heights, and improper sensor mounting\u2014either [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19790,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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