{"id":4262,"date":"2023-03-24T08:31:02","date_gmt":"2023-03-24T00:31:02","guid":{"rendered":"http:\/\/gcanbus.com\/?p=4262"},"modified":"2023-03-24T08:31:02","modified_gmt":"2023-03-24T00:31:02","slug":"what-is-modbus-protocol","status":"publish","type":"post","link":"https:\/\/gcanbus.com\/es\/what-is-modbus-protocol\/","title":{"rendered":"\u00bfQu\u00e9 es el protocolo Modbus?"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background hundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-space-evenly fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:2.88%;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:2.88%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-block\"><div class=\"fusion-text fusion-text-1\" style=\"--awb-margin-left:5%;\"><p>El protocolo Modbus es una estructura de mensajer\u00eda desarrollada por Modicon en 1979. Se utiliza para establecer una comunicaci\u00f3n cliente-servidor entre dispositivos inteligentes.<\/p>\n<p>Modbus se ha convertido en un protocolo de comunicaci\u00f3n est\u00e1ndar y ahora es un medio com\u00fanmente disponible para conectar dispositivos electr\u00f3nicos industriales. Es popular en entornos industriales porque se publica abiertamente y no est\u00e1 sujeto a derechos de autor.<\/p>\n<p><strong>Existen principalmente tres variantes de protocolos Modbus:<\/strong><\/p>\n<ul>\n<li>Modbus RTU (Remote Terminal Unit): se utiliza en la comunicaci\u00f3n serie y es la implementaci\u00f3n m\u00e1s com\u00fan disponible para Modbus.<\/li>\n<li>Modbus ASCII - se utiliza en la comunicaci\u00f3n serie y hace uso de caracteres ASCII para la comunicaci\u00f3n del protocolo.<\/li>\n<li>Modbus TCP\/IP o Modbus TCP - una variante de Modbus utilizada para las comunicaciones a trav\u00e9s de redes TCP\/IP, que se conecta a trav\u00e9s del puerto 502.<\/li>\n<\/ul>\n<p><strong>Algunas ventajas de utilizar el protocolo Modbus son<\/strong><br \/>\n- Es un protocolo de c\u00f3digo abierto.<br \/>\n- Los mensajes Modbus son estructuras de mensajer\u00eda sencillas, lo que dificulta su implantaci\u00f3n.<br \/>\n- Modbus mueve palabras y bits sin procesar y tiene muy pocas restricciones.<br \/>\n- El controlador puede funcionar e intercambiar datos con el PC en pocas horas si el controlador ya est\u00e1 instalado y est\u00e1 familiarizado con los sockets Ethernet y TCP\/IP.<br \/>\n<strong>Algunas desventajas de utilizar el protocolo Modbus son:<\/strong><br \/>\n- Modbus est\u00e1 restringido al direccionamiento de 247 dispositivos en un enlace de datos, lo que limita el n\u00famero de dispositivos de campo conectados a una estaci\u00f3n maestra (Ethernet TCP\/IP es la excepci\u00f3n).<br \/>\n- Modbus se dise\u00f1\u00f3 a finales de los 70 para comunicar con controladores l\u00f3gicos programables, el n\u00famero de tipos de datos era limitado.<br \/>\n- Modbus\/TCP no es un protocolo de comunicaci\u00f3n seguro. Modbus\/TCP no proporciona la opci\u00f3n de usar seguridad o encriptaci\u00f3n cuando se comunica entre dispositivos. Esto crea una potencial vulnerabilidad de seguridad en un sistema de automatizaci\u00f3n.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_4 1_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-block\"><div class=\"fusion-image-element in-legacy-container\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\"fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"500\" height=\"353\" title=\"1245\" src=\"https:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245.webp\" data-orig-src=\"http:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245.webp\" alt class=\"lazyload img-responsive wp-image-4263\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27500%27%20height%3D%27353%27%20viewBox%3D%270%200%20500%20353%27%3E%3Crect%20width%3D%27500%27%20height%3D%27353%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245-200x141.webp 200w, https:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245-300x212.webp 300w, https:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245-400x282.webp 400w, https:\/\/gcanbus.com\/wp-content\/uploads\/2023\/03\/1245.webp 500w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 400px\" \/><\/span><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\"><p style=\"text-align: right;\"><span style=\"font-size: 14pt; color: #333333;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">En busca de un <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"http:\/\/gcanbus.com\/es\/plc-io-coupler\/\">Acoplador E\/S PLC<\/a><\/span>? <\/span><\/strong><strong><span style=\"font-family: arial, helvetica, sans-serif;\">M\u00e1s informaci\u00f3n<\/span><\/strong><\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":4263,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[25],"tags":[63,64],"class_list":["post-4262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-modbus","tag-protocol"],"_links":{"self":[{"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/posts\/4262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/comments?post=4262"}],"version-history":[{"count":0,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/posts\/4262\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/media\/4263"}],"wp:attachment":[{"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/media?parent=4262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/categories?post=4262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gcanbus.com\/es\/wp-json\/wp\/v2\/tags?post=4262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}