{"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\/sk\/j1708-j1587-communication-protocols-for-older-heavy-duty-vehicles-and-construction-machinery\/","title":{"rendered":"J1708 \/ J1587: Komunika\u010dn\u00e9 protokoly pre star\u0161ie \u0165a\u017ek\u00e9 \u00fa\u017eitkov\u00e9 vozidl\u00e1 a stavebn\u00e9 stroje"},"content":{"rendered":"<p>SAE J1708 a SAE J1587 s\u00fa star\u0161ie komunika\u010dn\u00e9 protokoly navrhnut\u00e9 pre \u0165a\u017ek\u00e9 \u00fa\u017eitkov\u00e9 vozidl\u00e1 a stavebn\u00e9 stroje vyroben\u00e9 pred zaveden\u00edm modern\u00fdch syst\u00e9mov zalo\u017een\u00fdch na CAN (J1939). Hoci s\u00fa dnes \u010diasto\u010dne zastaran\u00e9, st\u00e1le sa \u0161iroko pou\u017e\u00edvaj\u00fa v mnoh\u00fdch diagnostick\u00fdch a servisn\u00fdch aplik\u00e1ci\u00e1ch vzh\u013eadom na ve\u013ek\u00fd po\u010det star\u0161\u00edch vozidiel, ktor\u00e9 s\u00fa st\u00e1le v prev\u00e1dzke.<\/p>\n\n\n\n<p><strong>Ako funguj\u00fa J1708 a J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\"><strong>J1708<\/strong> definuje <em>fyzick\u00fa komunika\u010dn\u00fa vrstvu<\/em> \u2013 sp\u00f4sob, ak\u00fdm sa \u00fadaje pren\u00e1\u0161aj\u00fa medzi riadiacimi jednotkami vozidla (ECU \u2013 Electronic Control Units). Pou\u017e\u00edva \u0161tandard RS-485 s prenosovou r\u00fdchlos\u0165ou <strong>9 600 bitov za sekundu<\/strong>.<\/li>\n\n\n\n<li class=\" translation-block\"><strong>J1587<\/strong> definuje <em>d\u00e1tov\u00fa spojov\u00fa a aplika\u010dn\u00fa vrstvu<\/em> \u2013 teda sp\u00f4sob, ak\u00fdm s\u00fa spr\u00e1vy k\u00f3dovan\u00e9 a interpretovan\u00e9, vr\u00e1tane <em>diagnostick\u00fdch chybov\u00fdch k\u00f3dov (DTC)<\/em>.<\/li>\n<\/ul>\n\n\n\n<p>Spolo\u010dne tvoria skor\u00fd komunika\u010dn\u00fd syst\u00e9m medzi motorom, prevodovkou, ABS a \u010fal\u0161\u00edmi d\u00f4le\u017eit\u00fdmi modulmi v \u0165a\u017ek\u00fdch \u00fa\u017eitkov\u00fdch vozidl\u00e1ch.<\/p>\n\n\n\n<p class=\" translation-block\"><strong>OBD-II adapt\u00e9ry Launch, ktor\u00e9 podporuj\u00fa protokol:<\/strong><br>DBScar IV, DBScar V, DBScar VII<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Zariadenia ThinkDiag, ktor\u00e9 podporuj\u00fa protokol:<\/strong><br>ThinkDiag 2<\/p>\n\n\n\n<p class=\" translation-block\"><strong>Zariadenia Ediag, ktor\u00e9 podporuj\u00fa 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 vozidiel a zna\u010dky podporovan\u00e9 protokolom:<br><\/strong>Star\u0161ie \u0165a\u017ek\u00e9 n\u00e1kladn\u00e9 vozidl\u00e1, autobusy a stavebn\u00e9 stroje vyroben\u00e9 pred roz\u0161\u00edren\u00fdm zaveden\u00edm protokolu J1939, vr\u00e1tane Volvo Trucks, Mack, Freightliner, Kenworth, Peterbilt, Cummins, Caterpillar a John Deere.<br>Tento protokol vyu\u017e\u00edva s\u00e9riov\u00fa komunik\u00e1ciu (RS-485) a umo\u017e\u0148uje v\u00fdmenu diagnostick\u00fdch \u00fadajov medzi modulmi ECU v star\u0161\u00edch HD syst\u00e9moch.<\/p>\n\n\n\n<p><strong>V\u00fdhody protokolov J1708 \/ J1587<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jednoduch\u00e1 d\u00e1tov\u00e1 \u0161trukt\u00fara a \u013eahko zrozumite\u013en\u00fd form\u00e1t spr\u00e1v<\/li>\n\n\n\n<li>Spo\u013eahliv\u00e1 komunik\u00e1cia v n\u00e1ro\u010dn\u00fdch pracovn\u00fdch podmienkach<\/li>\n\n\n\n<li>Kompatibiln\u00e9 so star\u0161\u00edmi n\u00e1kladn\u00fdmi vozidlami a \u0165a\u017ek\u00fdmi strojmi<\/li>\n\n\n\n<li>Dlhodob\u00e1 podpora \u2013 st\u00e1le pou\u017e\u00edvan\u00e9 v servisn\u00fdch a diagnostick\u00fdch n\u00e1strojoch<\/li>\n<\/ul>\n\n\n\n<p><strong>Nev\u00fdhody a obmedzenia<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00edzka r\u00fdchlos\u0165 prenosu d\u00e1t (9600 bps) obmedzuje objem d\u00e1t<\/li>\n\n\n\n<li>Bez podpory pokro\u010dil\u00fdch funkci\u00ed dostupn\u00fdch v J1939 alebo CAN FD<\/li>\n\n\n\n<li>Obmedzen\u00e1 kompatibilita s modern\u00fdmi diagnostick\u00fdmi syst\u00e9mami<\/li>\n\n\n\n<li>Postupne je nahr\u00e1dzan\u00fd modern\u00fdmi protokolmi CAN a Ethernet<\/li>\n<\/ul>\n\n\n\n<p><strong>Pou\u017eitie protokolov J1708 \/ J1587<\/strong><\/p>\n\n\n\n<p>Tieto protokoly sa pou\u017e\u00edvaj\u00fa v n\u00e1kladn\u00fdch vozidl\u00e1ch, autobusoch a stavebn\u00fdch a po\u013enohospod\u00e1rskych strojoch vyroben\u00fdch od konca 80. rokov do za\u010diatku 2000-tych rokov. Sl\u00fa\u017eia predov\u0161etk\u00fdm na z\u00e1kladn\u00fa diagnostiku motora, prevodovky, brzdov\u00e9ho syst\u00e9mu a pr\u00edstrojovej dosky.<\/p>\n\n\n\n<p><strong>Z\u00e1ver<\/strong><\/p>\n\n\n\n<p>Hoci sa protokoly J1708 a J1587 dnes v porovnan\u00ed s modern\u00fdmi komunika\u010dn\u00fdmi \u0161tandardmi pova\u017euj\u00fa za zastaran\u00e9, st\u00e1le zohr\u00e1vaj\u00fa k\u013e\u00fa\u010dov\u00fa \u00falohu pri \u00fadr\u017ebe a diagnostike star\u0161\u00edch vozidiel a strojov. Ich jednoduchos\u0165 a overen\u00e1 spo\u013eahlivos\u0165 z nich robia neoddelite\u013en\u00fa s\u00fa\u010das\u0165 hist\u00f3rie elektronick\u00fdch syst\u00e9mov v doprave a priemyseln\u00fdch aplik\u00e1ci\u00e1ch.<\/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":88,"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\/sk\/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\/sk\/wp-json\/wp\/v2\/posts\/3731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/comments?post=3731"}],"version-history":[{"count":1,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/posts\/3731\/revisions"}],"predecessor-version":[{"id":3737,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/posts\/3731\/revisions\/3737"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/media\/3733"}],"wp:attachment":[{"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/media?parent=3731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/categories?post=3731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagzone.org\/sk\/wp-json\/wp\/v2\/tags?post=3731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}