{"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\/cs\/j1708-j1587-communication-protocols-for-older-heavy-duty-vehicles-and-construction-machinery\/","title":{"rendered":"J1708 \/ J1587: Komunika\u010dn\u00ed protokoly pro star\u0161\u00ed t\u011b\u017ek\u00e1 u\u017eitkov\u00e1 vozidla a stavebn\u00ed stroje"},"content":{"rendered":"<p>SAE J1708 a SAE J1587 jsou star\u0161\u00ed komunika\u010dn\u00ed protokoly ur\u010den\u00e9 pro t\u011b\u017ek\u00e1 u\u017eitkov\u00e1 vozidla a stavebn\u00ed stroje vyroben\u00e9 p\u0159ed zaveden\u00edm modern\u00edch syst\u00e9m\u016f zalo\u017een\u00fdch na CAN (J1939). P\u0159esto\u017ee jsou dnes \u010d\u00e1ste\u010dn\u011b zastaral\u00e9, jsou st\u00e1le \u0161iroce vyu\u017e\u00edv\u00e1ny v mnoha diagnostick\u00fdch a servisn\u00edch aplikac\u00edch d\u00edky velk\u00e9mu po\u010dtu star\u0161\u00edch vozidel, kter\u00e1 jsou st\u00e1le v provozu.<\/p>\n\n\n\n<p><strong>Jak funguj\u00ed J1708 a J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\"><strong>J1708<\/strong> definuje <em>fyzickou komunika\u010dn\u00ed vrstvu<\/em> \u2013 zp\u016fsob, jak\u00fdm jsou data p\u0159en\u00e1\u0161ena mezi \u0159\u00eddic\u00edmi jednotkami vozidla (ECU \u2013 Electronic Control Units). Vyu\u017e\u00edv\u00e1 standard RS-485 s p\u0159enosovou rychlost\u00ed <strong>9 600 bit\u016f za sekundu<\/strong>.<\/li>\n\n\n\n<li class=\" translation-block\"><strong>J1587<\/strong> definuje <em>datovou linkovou a aplika\u010dn\u00ed vrstvu<\/em> \u2014 tedy zp\u016fsob, jak\u00fdm jsou zpr\u00e1vy k\u00f3dov\u00e1ny a interpretov\u00e1ny, v\u010detn\u011b <em>diagnostick\u00fdch chybov\u00fdch k\u00f3d\u016f (DTC)<\/em>.<\/li>\n<\/ul>\n\n\n\n<p>Spole\u010dn\u011b tvo\u0159\u00ed ran\u00fd komunika\u010dn\u00ed syst\u00e9m mezi motorem, p\u0159evodovkou, ABS a dal\u0161\u00edmi d\u016fle\u017eit\u00fdmi moduly u t\u011b\u017ek\u00fdch u\u017eitkov\u00fdch vozidel.<\/p>\n\n\n\n<p class=\" translation-block\"><strong>OBD-II adapt\u00e9ry Launch podporuj\u00edc\u00ed tento protokol:<\/strong><br>DBScar IV, DBScar V, DBScar VII<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Za\u0159\u00edzen\u00ed ThinkDiag podporuj\u00edc\u00ed tento protokol:<\/strong><br>ThinkDiag 2<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Za\u0159\u00edzen\u00ed Ediag podporuj\u00edc\u00ed tento protokol:<\/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>Typy vozidel a zna\u010dky podporovan\u00e9 protokolem:<br><\/strong>Star\u0161\u00ed t\u011b\u017ek\u00e1 n\u00e1kladn\u00ed vozidla, autobusy a stavebn\u00ed stroje vyroben\u00e9 p\u0159ed \u0161irok\u00fdm zaveden\u00edm protokolu J1939, v\u010detn\u011b Volvo Trucks, Mack, Freightliner, Kenworth, Peterbilt, Cummins, Caterpillar a John Deere.<br>Tento protokol vyu\u017e\u00edv\u00e1 s\u00e9riovou komunikaci (RS-485) a umo\u017e\u0148uje v\u00fdm\u011bnu diagnostick\u00fdch dat mezi moduly ECU ve star\u0161\u00edch HD syst\u00e9mech.<\/p>\n\n\n\n<p><strong>V\u00fdhody protokol\u016f J1708 \/ J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jednoduch\u00e1 datov\u00e1 struktura a snadno srozumiteln\u00fd form\u00e1t zpr\u00e1v<\/li>\n\n\n\n<li>Spolehliv\u00e1 komunikace v n\u00e1ro\u010dn\u00fdch pracovn\u00edch podm\u00ednk\u00e1ch<\/li>\n\n\n\n<li>Kompatibiln\u00ed se star\u0161\u00edmi n\u00e1kladn\u00edmi vozidly a t\u011b\u017ekou technikou<\/li>\n\n\n\n<li>Dlouhodob\u00e1 podpora \u2013 st\u00e1le pou\u017e\u00edvan\u00e9 v servisn\u00edch a diagnostick\u00fdch n\u00e1stroj\u00edch<\/li>\n<\/ul>\n\n\n\n<p><strong>Nev\u00fdhody a omezen\u00ed<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00edzk\u00e1 p\u0159enosov\u00e1 rychlost dat (9600 bps) omezuje objem dat<\/li>\n\n\n\n<li>Bez podpory pokro\u010dil\u00fdch funkc\u00ed dostupn\u00fdch v J1939 nebo CAN FD<\/li>\n\n\n\n<li>Omezen\u00e1 kompatibilita s modern\u00edmi diagnostick\u00fdmi syst\u00e9my<\/li>\n\n\n\n<li>Postupn\u011b je nahrazov\u00e1n modern\u00edmi protokoly CAN a Ethernet<\/li>\n<\/ul>\n\n\n\n<p><strong>Pou\u017eit\u00ed protokol\u016f J1708 \/ J1587<\/strong><\/p>\n\n\n\n<p>Tyto protokoly se pou\u017e\u00edvaj\u00ed u n\u00e1kladn\u00edch vozidel, autobus\u016f a stavebn\u00edch a zem\u011bd\u011blsk\u00fdch stroj\u016f vyroben\u00fdch od konce 80. let do za\u010d\u00e1tku 2000. let. Slou\u017e\u00ed p\u0159edev\u0161\u00edm k z\u00e1kladn\u00ed diagnostice motoru, p\u0159evodovky, brzdov\u00e9ho syst\u00e9mu a p\u0159\u00edstrojov\u00e9 desky.<\/p>\n\n\n\n<p><strong>Z\u00e1v\u011br<\/strong><\/p>\n\n\n\n<p>A\u010dkoli jsou protokoly J1708 a J1587 dnes ve srovn\u00e1n\u00ed s modern\u00edmi komunika\u010dn\u00edmi standardy pova\u017eov\u00e1ny za zastaral\u00e9, st\u00e1le hraj\u00ed kl\u00ed\u010dovou roli p\u0159i \u00fadr\u017eb\u011b a diagnostice star\u0161\u00edch vozidel a stroj\u016f. Jejich jednoduchost a osv\u011bd\u010den\u00e1 spolehlivost z nich \u010din\u00ed ned\u00edlnou sou\u010d\u00e1st historie elektronick\u00fdch syst\u00e9m\u016f v doprav\u011b a pr\u016fmyslov\u00fdch aplikac\u00edch.<\/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\/cs\/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\/cs\/wp-json\/wp\/v2\/posts\/3731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/comments?post=3731"}],"version-history":[{"count":1,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts\/3731\/revisions"}],"predecessor-version":[{"id":3737,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts\/3731\/revisions\/3737"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/media\/3733"}],"wp:attachment":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/media?parent=3731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/categories?post=3731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/tags?post=3731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}