{"id":3841,"date":"2025-06-23T14:34:22","date_gmt":"2025-06-23T06:34:22","guid":{"rendered":"https:\/\/www.key-iot.com\/?p=3841"},"modified":"2025-06-23T14:34:22","modified_gmt":"2025-06-23T06:34:22","slug":"design-practice-16-key-considerations-for-can-bus-application-design","status":"publish","type":"post","link":"https:\/\/www.key-iot.com\/jp\/blog\/design-practice-16-key-considerations-for-can-bus-application-design\/","title":{"rendered":"\u30c7\u30b6\u30a4\u30f3\u30d7\u30e9\u30af\u30c6\u30a3\u30b916\uff1aCAN\u30d0\u30b9\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u8a2d\u8a08\u306e\u4e3b\u306a\u8003\u616e\u4e8b\u9805"},"content":{"rendered":"
<\/div>\n
\"7a385b2bcd0c8c0cab43075e12655d61\"<\/div>\n
<\/div>\n
\u306b\u3064\u3044\u3066\u00a0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fb\u30a8\u30ea\u30a2\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08CAN\uff09<\/strong>\u00a0\u306f\u30dc\u30c3\u30b7\u30e5\u304c\u958b\u767a\u3057\u305f\u30d5\u30a3\u30fc\u30eb\u30c9\u30d0\u30b9\u6280\u8853\u3067\u3001\u57fa\u672c\u7684\u306b\u306f\u30b7\u30ea\u30a2\u30eb\u975e\u540c\u671f\u901a\u4fe1\u30d0\u30b9\u3067\u3042\u308b\u3002\u81ea\u52d5\u8eca\u306e\u96fb\u5b50\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\u3084\u7523\u696d\u7528\u5236\u5fa1\u306e\u5834\u9762\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/span><\/div>\n
\n

CAN\u30d0\u30b9\u306e\u6982\u8981<\/h2>\n

CAN\u30d0\u30b9\u306f\u3001\u3069\u3061\u3089\u3082\u4f1d\u9001\u306b\u5dee\u52d5\u4fe1\u53f7\u7dda\u3092\u4f7f\u7528\u3059\u308b\u3068\u3044\u3046\u70b9\u3067\u3001RS485\u30d0\u30b9\u3068\u4f3c\u3066\u3044\u308b\u3002CAN\u306e2\u3064\u306e\u4fe1\u53f7\u7dda\u306f\u00a0CAN_H<\/strong>\u00a0\u305d\u3057\u3066\u00a0CAN_L<\/strong>\u3053\u308c\u3089\u306f\u4fe1\u53f7\u632f\u5e45\u306f\u7b49\u3057\u3044\u304c\u4f4d\u76f8\u306f\u9006\u3067\u3042\u308b\u3002\u3053\u306e2\u672c\u306e\u30e9\u30a4\u30f3\u306e\u96fb\u5727\u5dee\u306f\u30ed\u30b8\u30c3\u30af\u30fb\u30ec\u30d9\u30eb\u3092\u8868\u3059\uff1a<\/span><\/p>\n

    \n
  • \u6b63\u306e\u96fb\u5727\u5dee\u306f\u30ed\u30b8\u30c3\u30af\u3092\u793a\u3059\u00a00<\/strong>.<\/li>\n
  • \u96fb\u5727\u5dee\u304c\u30bc\u30ed\uff08\u307e\u305f\u306f\u30de\u30a4\u30ca\u30b9\uff09\u306f\u30ed\u30b8\u30c3\u30af\u3092\u793a\u3059\u3002\u00a01<\/strong>.<\/li>\n<\/ul>\n<\/div>\n
    RS485\u306b\u6bd4\u3079\u3001CAN\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3088\u308a\u8907\u96d1\u3067\u3059\u3002RS485\u3067\u306f\u901a\u5e38\u3001MCU\u306eUART\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u304c\u3001CAN\u3067\u306f\u5c02\u7528\u306e\u00a0CAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc<\/strong>.MCU\u306bCAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u304c\u5185\u8535\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u5916\u4ed8\u3051\u306eCAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30c1\u30c3\u30d7\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/div>\n
    \n

    \u5178\u578b\u7684\u306aCAN\u30d0\u30b9\u306e\u5b9f\u88c5<\/h2>\n

    CAN\u30d0\u30b9\u30fb\u30b7\u30b9\u30c6\u30e0\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u306b\u306a\u3063\u3066\u3044\u308b\uff1a<\/span><\/p>\n

      \n
    • \u30de\u30a4\u30b3\u30f3<\/strong>\u00a0(\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30e6\u30cb\u30c3\u30c8\uff09<\/li>\n
    • CAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc<\/strong><\/li>\n
    • CAN\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc<\/strong><\/li>\n<\/ul>\n<\/div>\n
      \u4ee5\u4e0b\u306f\u3001CAN\u30d0\u30b9\u30fb\u30b7\u30b9\u30c6\u30e0\u306e\u5178\u578b\u7684\u306a\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u56de\u8def\u3067\u3042\u308b\uff1a<\/span><\/div>\n
      (\u6ce8\uff1a\u539f\u6587\u3067\u8a00\u53ca\u3055\u308c\u3066\u3044\u308b\u56f3\u306f\u3053\u3053\u306b\u306f\u542b\u307e\u308c\u3066\u3044\u306a\u3044\uff09\u3002<\/em><\/span><\/div>\n
      \n

      CAN\u30d0\u30b9\u898f\u683c<\/h2>\n

      CAN\u30d0\u30b9\u306f2\u3064\u306e\u56fd\u969b\u898f\u683c\u306b\u767a\u5c55\u3057\u305f\uff1a\u00a0ISO11519<\/strong>\u00a0\u305d\u3057\u3066\u00a0ISO11898<\/strong>.\u4e3b\u306a\u9055\u3044\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff1a<\/span><\/div>\n

      \n
        \n
      1. ISO11898\uff08\u9ad8\u901f\u8fd1\u8ddd\u96e2\u9589\u30eb\u30fc\u30d7\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<\/strong>:\n
          \n
        • \u6700\u5927\u30d0\u30b9\u9577\uff1a\u00a040\u30e1\u30fc\u30c8\u30eb<\/strong><\/li>\n
        • \u6700\u5927\u901a\u4fe1\u901f\u5ea6\uff1a\u00a01 Mbps<\/strong><\/li>\n
        • \u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u00a0120\u03a9\u7d42\u7aef\u62b5\u6297<\/strong>\u00a0\u30d0\u30b9\u306e\u4e21\u7aef\u306b\u3042\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
          \n
            \n
          1. ISO11519-2\uff08\u4f4e\u901f\u9577\u8ddd\u96e2\u30aa\u30fc\u30d7\u30f3\u30eb\u30fc\u30d7\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<\/strong>:\n
              \n
            • \u6700\u5927\u4f1d\u9001\u8ddd\u96e2\uff1a\u00a01km<\/strong><\/li>\n
            • \u6700\u5927\u901a\u4fe1\u901f\u5ea6\uff1a\u00a0125 kbps<\/strong><\/li>\n
            • \u5404\u30d0\u30b9\u30e9\u30a4\u30f3\u306b\u306f\u00a02.2 k\u03a9\u76f4\u5217\u62b5\u6297<\/strong>.2\u3064\u306e\u30e9\u30a4\u30f3\u306f\u72ec\u7acb\u3057\u3066\u304a\u308a\u3001\u30af\u30ed\u30fc\u30ba\u30c9\u30eb\u30fc\u30d7\u3092\u5f62\u6210\u3057\u3066\u3044\u306a\u3044\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
              \n

              \u5b9f\u8df5\u7684\u306a\u8a2d\u8a08\u306e\u8003\u616e\u70b9<\/h2>\n

              CAN\u30d0\u30b9\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u8a08\u3059\u308b\u5834\u5408\u3001\u914d\u7dda\u65b9\u6cd5\u306fMCU\u306eCAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u7279\u6027\u306b\u4f9d\u5b58\u3059\u308b\u3002\u4f8b\u3048\u3070\u00a0STM32F103<\/strong>\u00a0\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u3001\u4ee5\u4e0b\u306eCAN\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u307e\u3059\uff1a<\/span><\/p>\n

                \n
              • \u30b5\u30dd\u30fc\u30c8\u00a0CAN2.0A<\/strong>\u00a0\u305d\u3057\u3066\u00a0CAN2.0B<\/strong>\u00a0\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5f93\u3046\u3002<\/li>\n
              • \u901a\u4fe1\u901f\u5ea6\u00a01 Mbps<\/strong>.<\/li>\n
              • \u9ad8\u901f\u30d0\u30b9\u306b\u5206\u985e\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n<\/div>\n
                \u5f93\u3063\u3066\u3001STM32F103\u306e\u5468\u8fba\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u56de\u8def\u3092\u8a2d\u8a08\u3059\u308b\u5834\u5408\u3001\u7d42\u7aef\u62b5\u6297\u306e\u69cb\u6210\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u00a0ISO11898\u898f\u683c<\/strong>\u00a0(\u3064\u307e\u308a\u3001\u30d0\u30b9\u306e\u4e21\u7aef\u306b120\u03a9\u306e\u62b5\u6297\u5668\uff09\u3002<\/span><\/div>\n
                \n

                \u7d50\u8ad6<\/h2>\n

                CAN\u30d0\u30b9\u306f\u3001\u81ea\u52d5\u8eca\u3084\u7523\u696d\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5805\u7262\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u305d\u306e\u8a2d\u8a08\u306b\u306f\u3001\u7279\u5b9a\u306e\u898f\u683c\uff08ISO11898\u307e\u305f\u306fISO11519\uff09\u3068\u3001MCU\u304a\u3088\u3073\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc\u30fb\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u7279\u6027\u3092\u614e\u91cd\u306b\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u56de\u306f\u3001CAN\u30d7\u30ed\u30c8\u30b3\u30eb\u81ea\u4f53\u306e\u8a73\u7d30\u5206\u6790\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002<\/span><\/div>\n

                <\/div>\n
                <\/div>","protected":false},"excerpt":{"rendered":"

                The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. It is widely used in automotive electronic control systems and industrial control scenarios. Overview of CAN Bus The CAN bus is similar to the RS485 bus in that both use differential signal lines for transmission. The two signal lines in CAN are\u00a0CAN_H\u00a0and\u00a0CAN_L, which have equal signal amplitudes but opposite phases. The voltage difference between these two lines represents logic levels: A positive voltage difference indicates logic\u00a00. A zero (or negative) voltage difference indicates logic\u00a01. Compared to RS485, the CAN protocol is more complex. While RS485 typically uses the UART module in an MCU, […]<\/p>\n","protected":false},"author":1,"featured_media":3845,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"metadata":{"classic-editor-remember":["classic-editor"],"_edit_lock":["1750660404:1"],"_edit_last":["1"],"_thumbnail_id":["3845"],"themepark_seo_title":["Design Practice 16: Key Considerations for CAN Bus Application Design"],"themepark_seo_description":["The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. It is widely used in automotive electronic control systems and industrial control scenarios."],"themepark_seo_keyword":[" CAN Bus"],"catce":["sidebar-widgets4"],"_yoast_wpseo_primary_category":["16"],"_yoast_wpseo_metadesc":["The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. It is widely used in automotive electronic control systems and industrial control scenarios."],"_yoast_wpseo_content_score":["90"],"_yoast_wpseo_estimated-reading-time-minutes":["3"],"views":["6555"],"_wpml_word_count":["453"],"_trp_automatically_translated_slug_es_PE":["practica-de-diseno-16-consideraciones-clave-para-el-diseno-de-aplicaciones-can-bus"]},"yoast_head":"\nDesign Practice 16: Key Considerations for CAN Bus Application Design - KEY-IOT<\/title>\n<meta name=\"description\" content=\"The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. 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