{"id":5781,"date":"2017-01-03T14:01:16","date_gmt":"2017-01-03T13:01:16","guid":{"rendered":"http:\/\/www.gemac-fieldbus.com\/?p=5781\/"},"modified":"2025-10-27T12:43:03","modified_gmt":"2025-10-27T11:43:03","slug":"errorframes-which-node-sent-the-message","status":"publish","type":"post","link":"https:\/\/alt.gemac-fieldbus.com\/en\/errorframes-which-node-sent-the-message\/","title":{"rendered":"Errorframes: which node sent the message"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-80tpqd-bdb5e33336030bcf93d4265fd900de7a main_color avia-section-default avia-no-shadow  avia-builder-el-0  avia-builder-el-no-sibling  avia-bg-style-scroll container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-5781'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5jiwph-807f54ca24e7c2420ff374c889cdedc6\">\n.flex_column.av-5jiwph-807f54ca24e7c2420ff374c889cdedc6{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-5jiwph-807f54ca24e7c2420ff374c889cdedc6 av_two_third  avia-builder-el-1  el_before_av_one_third  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-jj9sjahi-e4422e9d3a4bb692468663ad058165ea '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Error frames: which node sent the message<\/h3>\n<p>When error frames occur in a bus, 2 questions come up:<\/p>\n<ol>\n<li>Which node destroyed the message by sending an\u00a0error frame?<\/li>\n<li>Which node sent the message that was later destroyed?<\/li>\n<\/ol>\n<p>The first question is not easy to answer because every node in a bus can be the sender of the error frame. It will look alike every time.\u00a0 By measuring at different places on the bus and temporarily disconnect one node after the other is the only way to find that problem.<\/p>\n<p>To answer the second question, we have a fair chance to answer it with CBT2.<br \/>\nUsing the online trigger measurement, you can show the last flawed message within the oscilloscope display. Therefore you should trigger error frames only (deselect the other triggers on the left side).<\/p>\n<p>Now start a single measurement, the tester stops at the next error frame. The last message is now displayed in the oscilloscope display. You have a good chance that the error frame came after the arbitration, so you can read the node&#8217;s ID that sent the message. The screenshot is ID 702 (the green marked area of the oscillogram is the ID).<\/p>\n<p><a href=\"https:\/\/static.gemac-fieldbus.com\/2017\/01\/Errorframe-ID.png\"><img decoding=\"async\" class=\"alignnone size-large wp-image-5252 lazyload\" data-src=\"https:\/\/static.gemac-fieldbus.com\/2017\/01\/Errorframe-ID-1030x649.png\" alt=\"\" width=\"1030\" height=\"649\" data-srcset=\"https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID-1030x649.png 1030w, https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID-300x189.png 300w, https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID-768x484.png 768w, https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID-705x444.png 705w, https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID-450x283.png 450w, https:\/\/alt.gemac-fieldbus.com\/wp-content\/uploads\/2017\/01\/Errorframe-ID.png 1234w\" data-sizes=\"auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1030px; --smush-placeholder-aspect-ratio: 1030\/649;\" data-original-sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/a><\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-cr0it-953cc4b55b9d3d80e267ccba853c7c6e\">\n.flex_column.av-cr0it-953cc4b55b9d3d80e267ccba853c7c6e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-cr0it-953cc4b55b9d3d80e267ccba853c7c6e av_one_third  avia-builder-el-3  el_after_av_two_third  avia-builder-el-last  flex_column_div av-zero-column-padding  '     ><div  class='avia-builder-widget-area clearfix  avia-builder-el-4  avia-builder-el-no-sibling '><div id=\"rpwe_widget-13\" class=\"widget clearfix rpwe_widget recent-posts-extended\"><style>.rpwe-block ul{\r\nlist-style: none !important;\r\nmargin-left: 0 !important;\r\npadding-left: 0 !important;\r\n}\r\n\r\n.rpwe-block li{\r\nborder-bottom: 1px solid #eee;\r\nmargin-bottom: 10px;\r\npadding-bottom: 10px;\r\nlist-style-type: none;\r\n}\r\n\r\n.rpwe-block a{\r\ndisplay: inline !important;\r\ntext-decoration: none;\r\n}\r\n\r\n.rpwe-block h3{\r\nbackground: none !important;\r\nclear: none;\r\nmargin-bottom: 0 !important;\r\nmargin-top: 0 !important;\r\nfont-weight: 400;\r\nfont-size: 16px !important;\r\nline-height: 1.5em;\r\n}\r\n\r\n.rpwe-thumb{\r\nborder: 1px solid #eee !important;\r\nbox-shadow: none !important;\r\nmargin: 2px 10px 2px 0;\r\npadding: 3px !important;\r\n}\r\n\r\n.rpwe-summary{\r\nfont-size: 12px;\r\n}\r\n\r\n.rpwe-time{\r\ncolor: #bbb;\r\nfont-size: 11px;\r\n}\r\n\r\n.rpwe-comment{\r\ncolor: #bbb;\r\nfont-size: 11px;\r\npadding-left: 5px;\r\n}\r\n\r\n.rpwe-alignleft{\r\ndisplay: inline;\r\nfloat: left;\r\n}\r\n\r\n.rpwe-alignright{\r\ndisplay: inline;\r\nfloat: right;\r\n}\r\n\r\n.rpwe-aligncenter{\r\ndisplay: block;\r\nmargin-left: auto;\r\nmargin-right: auto;\r\n}\r\n\r\n.rpwe-clearfix:before,\r\n.rpwe-clearfix:after{\r\ncontent: &quot;&quot;;\r\ndisplay: table !important;\r\n}\r\n\r\n.rpwe-clearfix:after{\r\nclear: both;\r\n}\r\n\r\n.rpwe-clearfix{\r\nzoom: 1;\r\n}\r\n<\/style><h3 class=\"widgettitle\"><a href=\"https:\/\/gemac-fieldbus.com\/en\/faq\/\" title=\"Back to FAQ overview\">Back to FAQ overview<\/a><\/h3><div  class=\"rpwe-block\"><hr>\r\n<h3>FAQ about the CAN-Bus Tester 2<\/h3><ul class=\"rpwe-ul\"><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/50-60-hz-ripple-when-the-tester-is-connected\/\" target=\"_self\">50\/60 Hz ripple when the tester is connected<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/assignment-of-d-sub9-socket-on-cantouch-and-can-bus-tester-2\/\" target=\"_self\">Assignment of D-Sub9 socket on CANtouch and CAN-Bus Tester 2<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/can-bus-wiring-test\/\" target=\"_self\">CAN bus wiring test<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/can-symboleditor-manual\/\" target=\"_self\">CAN Symboleditor Manual<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/canbusview-xl-iii-can-quick-tester-c-qt15-and-devicenet-analyzer\/\" target=\"_self\">CANBUSview XL III, CAN Quick Tester C-QT15 and DeviceNet Analyzer<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/canopen-protocol-monitor-vs-canopen-bus-system\/\" target=\"_self\">CANopen protocol monitor vs. CANopen bus system<\/a><\/h3><\/li><li class=\"rpwe-li 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class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/tester-shows-non-existend-error-frames\/\" target=\"_self\">Tester shows non existend error-frames<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/trigger-dso-with-the-cbt2\/\" target=\"_self\">Trigger DSO with the CBT2<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/triggeroutput-cbt2\/\" target=\"_self\">Trigger Output CBT2<\/a><\/h3><\/li><li class=\"rpwe-li rpwe-clearfix\"><h3 class=\"rpwe-title\"><a href=\"https:\/\/alt.gemac-fieldbus.com\/en\/which-cantouch-firmware-fits-to-which-can-bus-tester-2-software\/\" target=\"_self\">Which CANtouch-Firmware fits to which CAN-Bus Tester 2 Software ?<\/a><\/h3><\/li><\/ul><\/div><!-- Generated by http:\/\/wordpress.org\/plugins\/recent-posts-widget-extended\/ --><\/div><\/div><\/div><\/div><\/div><\/main><!-- close 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