{"id":3731,"date":"2025-10-17T10:53:31","date_gmt":"2025-10-17T08:53:31","guid":{"rendered":"https:\/\/diagzone.org\/?p=3731"},"modified":"2025-10-17T10:53:33","modified_gmt":"2025-10-17T08:53:33","slug":"j1708-j1587-communication-protocols-for-older-heavy-duty-vehicles-and-construction-machinery","status":"publish","type":"post","link":"https:\/\/diagzone.org\/es\/j1708-j1587-communication-protocols-for-older-heavy-duty-vehicles-and-construction-machinery\/","title":{"rendered":"J1708 \/ J1587: Protocolos de comunicaci\u00f3n para veh\u00edculos comerciales pesados antiguos y maquinaria de construcci\u00f3n"},"content":{"rendered":"<p>SAE J1708 y SAE J1587 son protocolos de comunicaci\u00f3n heredados, dise\u00f1ados para veh\u00edculos comerciales pesados y maquinaria de construcci\u00f3n fabricados antes de la introducci\u00f3n de los sistemas modernos basados en CAN (J1939). Aunque hoy en d\u00eda est\u00e1n parcialmente obsoletos, todav\u00eda se utilizan ampliamente en muchas aplicaciones de diagn\u00f3stico y servicio debido a la gran cantidad de veh\u00edculos antiguos que siguen en funcionamiento.<\/p>\n\n\n\n<p><strong>C\u00f3mo funcionan J1708 y J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\"><strong>J1708<\/strong> define la <em>capa de comunicaci\u00f3n f\u00edsica<\/em>, es decir, la forma en que los datos se transmiten entre las ECU (Electronic Control Units) del veh\u00edculo. Utiliza el est\u00e1ndar RS-485 con una velocidad de transmisi\u00f3n de <strong>9.600 bits por segundo<\/strong>.<\/li>\n\n\n\n<li class=\" translation-block\"><strong>J1587<\/strong> define las <em>capas de enlace de datos y de aplicaci\u00f3n<\/em>, es decir, c\u00f3mo se codifican e interpretan los mensajes, incluidos los <em>c\u00f3digos de diagn\u00f3stico de fallos (DTC)<\/em>.<\/li>\n<\/ul>\n\n\n\n<p>Juntos, forman un sistema de comunicaci\u00f3n temprano entre el motor, la transmisi\u00f3n, el ABS y otros m\u00f3dulos esenciales en los veh\u00edculos comerciales pesados.<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Adaptadores OBD-II de Launch compatibles con el protocolo:<\/strong><br>DBScar IV, DBScar V, DBScar VII<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Dispositivos ThinkDiag compatibles con el protocolo:<\/strong><br>ThinkDiag 2<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Dispositivos Ediag compatibles con el protocolo:<\/strong><br>Ediag Plus, Ediag Elite<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"430\" height=\"430\" src=\"https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-32.jpeg\" alt=\"\" class=\"wp-image-3735\" srcset=\"https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-32.jpeg 430w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-32-300x300.jpeg 300w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-32-150x150.jpeg 150w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-32-100x100.jpeg 100w\" sizes=\"auto, (max-width: 430px) 100vw, 430px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"421\" height=\"421\" src=\"https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-33.jpeg\" alt=\"\" class=\"wp-image-3736\" srcset=\"https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-33.jpeg 421w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-33-300x300.jpeg 300w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-33-150x150.jpeg 150w, https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/image-33-100x100.jpeg 100w\" sizes=\"auto, (max-width: 421px) 100vw, 421px\" \/><\/figure>\n\n\n\n<p class=\" translation-block\"><strong>Tipos de veh\u00edculos y marcas compatibles con el protocolo:<br><\/strong>Camiones pesados antiguos, autobuses y maquinaria de construcci\u00f3n fabricados antes de la adopci\u00f3n generalizada del protocolo J1939, incluidos Volvo Trucks, Mack, Freightliner, Kenworth, Peterbilt, Cummins, Caterpillar y John Deere.<br>Este protocolo utiliza comunicaci\u00f3n serie (RS-485) y permite el intercambio de datos de diagn\u00f3stico entre los m\u00f3dulos ECU en sistemas HD antiguos.<\/p>\n\n\n\n<p><strong>Ventajas de los protocolos J1708 \/ J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Estructura de datos simple y formato de mensajes f\u00e1cil de entender<\/li>\n\n\n\n<li>Comunicaci\u00f3n fiable en condiciones de trabajo exigentes<\/li>\n\n\n\n<li>Compatible con camiones antiguos y maquinaria pesada<\/li>\n\n\n\n<li>Soporte a largo plazo \u2014 a\u00fan utilizado en herramientas de servicio y diagn\u00f3stico<\/li>\n<\/ul>\n\n\n\n<p><strong>Desventajas y limitaciones<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La baja velocidad de transferencia de datos (9600 bps) limita el volumen de datos<\/li>\n\n\n\n<li>No admite funciones avanzadas disponibles en J1939 o CAN FD<\/li>\n\n\n\n<li>Compatibilidad limitada con los sistemas de diagn\u00f3stico modernos<\/li>\n\n\n\n<li>Est\u00e1 siendo sustituido gradualmente por protocolos CAN y Ethernet modernos<\/li>\n<\/ul>\n\n\n\n<p><strong>Uso de los protocolos J1708 \/ J1587<\/strong><\/p>\n\n\n\n<p>Estos protocolos se utilizan en camiones, autobuses y maquinaria de construcci\u00f3n y agr\u00edcola fabricados desde finales de la d\u00e9cada de 1980 hasta principios de los a\u00f1os 2000. Se emplean principalmente para el diagn\u00f3stico b\u00e1sico del motor, la transmisi\u00f3n, el sistema de frenos y los componentes del tablero.<\/p>\n\n\n\n<p><strong>Conclusi\u00f3n<\/strong><\/p>\n\n\n\n<p>Aunque J1708 y J1587 se consideran actualmente obsoletos en comparaci\u00f3n con los est\u00e1ndares de comunicaci\u00f3n modernos, siguen desempe\u00f1ando un papel fundamental en el mantenimiento y el diagn\u00f3stico de veh\u00edculos y maquinaria antiguos. Su simplicidad y fiabilidad demostrada los convierten en una parte esencial de la historia de los sistemas electr\u00f3nicos en el transporte y las aplicaciones industriales.<\/p>","protected":false},"excerpt":{"rendered":"<p>SAE J1708 and SAE J1587 are legacy communication protocols designed for heavy commercial vehicles and construction machinery produced before the introduction of modern CAN-based systems (J1939). Although partially outdated today, they are still widely used in many diagnostic and service applications due to the large number of older vehicles still in operation. How J1708 and&#8230;<\/p>","protected":false},"author":1,"featured_media":3733,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"J1708 \/ J1587: Older heavy-duty vehicles and construction machinery","_seopress_titles_desc":"These protocols are used in trucks, buses, construction, and agricultural machinery manufactured from the late 1980s to the early 2000s.","_seopress_robots_index":"","inline_featured_image":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_themeisle_gutenberg_block_has_review":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"iawp_total_views":89,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}]},"featured_image_src_large":["https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/J1708-J1587-older-vehicles-and-construction-machinery.jpg",600,600,false],"author_info":{"display_name":"diagzone","author_link":"https:\/\/diagzone.org\/es\/author\/xpro5\/"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":33,"filter":"raw","cat_ID":1,"category_count":33,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/posts\/3731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/comments?post=3731"}],"version-history":[{"count":1,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/posts\/3731\/revisions"}],"predecessor-version":[{"id":3737,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/posts\/3731\/revisions\/3737"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/media\/3733"}],"wp:attachment":[{"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/media?parent=3731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/categories?post=3731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagzone.org\/es\/wp-json\/wp\/v2\/tags?post=3731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}