{"id":25000,"date":"2023-09-20T21:26:31","date_gmt":"2023-09-20T13:26:31","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=25000"},"modified":"2026-07-01T00:12:21","modified_gmt":"2026-06-30T16:12:21","slug":"modbus-rtu-ru-he-xie-duo-ge-ji-cun-qi-xiao-bai-jiao-cheng","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/25000.html","title":{"rendered":"Modbus RTU\u5982\u4f55\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\uff1f\u5c0f\u767d\u6559\u7a0b"},"content":{"rendered":"

Modbus RTU \u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u8be6\u89e3<\/h2>\n\n\n\n
<\/figure>\n\n\n\n

1. \u534f\u8bae\u6982\u8ff0<\/h3>\n\n\n\n

Modbus RTU \u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u4e2d\u7684\u8bbe\u5907\u95f4\u901a\u4fe1\u3002\u4e3b\u8981\u7279\u70b9\u662f\u7b80\u5355\u3001\u7a33\u5b9a\u3002\u5728\u8fd9\u4e2a\u6a21\u5f0f\u4e2d\uff0c\u6570\u636e\u662f\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u4f20\u8f93\u7684\u3002<\/p>\n\n\n\n

2. \u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/h3>\n\n\n\n

\u5f53\u6211\u4eec\u9700\u8981\u4fee\u6539\u4e00\u4e2a\u8bbe\u5907\uff08\u4f8b\u5982\uff0c\u7535\u673a\u9a71\u52a8\u5668\u6216\u4f20\u611f\u5668\uff09\u4e0a\u7684\u591a\u4e2a\u53c2\u6570\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u201c\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u201d\u529f\u80fd\u3002<\/p>\n\n\n\n

3. \u8bf7\u6c42\u683c\u5f0f<\/h3>\n\n\n\n

\u4e00\u4e2a\u6807\u51c6\u7684Modbus RTU\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u8bf7\u6c42\u5305\u542b\u4ee5\u4e0b\u90e8\u5206\uff1a<\/p>\n\n\n\n

    \n
  • \u8bbe\u5907\u5730\u5740<\/strong>: 1\u5b57\u8282\uff0c\u6807\u8bc6\u8981\u901a\u4fe1\u7684\u76ee\u6807\u8bbe\u5907\u3002<\/li>\n\n\n\n
  • Function Code<\/strong>: 1\u5b57\u8282\uff0c\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u529f\u80fd\u7801\u4e3a 0x10<\/code>\u3002<\/li>\n\n\n\n
  • \u8d77\u59cb\u5bc4\u5b58\u5668\u5730\u5740<\/strong>: 2\u5b57\u8282\uff0c\u6307\u5b9a\u7b2c\u4e00\u4e2a\u8981\u5199\u5165\u7684\u5bc4\u5b58\u5668\u7684\u5730\u5740\u3002<\/li>\n\n\n\n
  • \u5bc4\u5b58\u5668\u6570\u91cf<\/strong>: 2\u5b57\u8282\uff0c\u6307\u5b9a\u8981\u5199\u5165\u7684\u5bc4\u5b58\u5668\u7684\u603b\u6570\u91cf\u3002<\/li>\n\n\n\n
  • \u5b57\u8282\u8ba1\u6570<\/strong>: 1\u5b57\u8282\uff0c\u8868\u793a\u540e\u7eed\u8981\u5199\u5165\u7684\u6570\u636e\u603b\u5b57\u8282\u6570\u3002<\/li>\n\n\n\n
  • \u6570\u636e<\/strong>: \u6839\u636e\u9700\u8981\u5199\u5165\u7684\u5bc4\u5b58\u5668\u6570\u91cf\u53d8\u5316\uff0c\u6bcf\u4e2a\u5bc4\u5b58\u5668\u4e3a2\u5b57\u8282\u3002<\/li>\n\n\n\n
  • CRC\u6821\u9a8c<\/strong>: 2\u5b57\u8282\uff0c\u7528\u4e8e\u9a8c\u8bc1\u6d88\u606f\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n\n\n\n

    4. \u4f8b\u5b50<\/h3>\n\n\n\n

    \u5047\u8bbe\u6211\u4eec\u8981\u5411\u5730\u5740\u4e3a 0x01<\/code> \u7684\u8bbe\u5907\u5199\u5165\uff0c\u4ece\u5bc4\u5b58\u5668\u5730\u5740 0x3000<\/code> \u5f00\u59cb\uff0c\u8fde\u7eed\u76844\u4e2a\u5bc4\u5b58\u5668\u3002\u6211\u4eec\u8981\u5199\u5165\u7684\u6570\u636e\u662f\uff1a0x1234<\/code>, 0x5678<\/code>, 0x9ABC<\/code>, 0xDEF0<\/code>\u3002<\/p>\n\n\n\n

    \u6784\u9020\u7684\u6d88\u606f\u4e3a\uff1a<\/p>\n\n\n\n

    01       (\u8bbe\u5907\u5730\u5740)\n10       (\u529f\u80fd\u7801)\n30 00    (\u8d77\u59cb\u5bc4\u5b58\u5668\u5730\u5740)\n00 04    (\u5bc4\u5b58\u5668\u6570\u91cf)\n08       (\u5b57\u8282\u8ba1\u6570\uff0c4\u5bc4\u5b58\u5668*2\u5b57\u8282\/\u5bc4\u5b58\u5668)\n12 34 56 78 9A BC DE F0 (\u6570\u636e)\n?? ??    (CRC\u6821\u9a8c, \u5b9e\u9645\u503c\u9700\u8981\u4f7f\u7528crc16-modbus\u6765\u8ba1\u7b97)<\/pre><\/div>\n\n\n\n
    \u8981\u6ce8\u610f\uff0cCRC\u6821\u9a8c\u503c\u662f\u57fa\u4e8e\u6574\u4e2a\u6d88\u606f\uff08\u9664CRC\u5916\u7684\u90e8\u5206\uff09\u6765\u8ba1\u7b97\u7684\u3002\u4f60\u9700\u8981\u4f7f\u7528Modbus RTU\u7684CRC\u7b97\u6cd5\u6765\u5f97\u5230\u8fd9\u4e2a\u503c\uff0c\u5e76\u5c06\u5b83\u6dfb\u52a0\u5230\u6d88\u606f\u7684\u5c3e\u90e8\u3002<\/p>\n\n\n\n
    5. \u53d1\u9001\u5e76\u7b49\u5f85<\/h3>\n\n\n\n
    \u5b8c\u6210\u6d88\u606f\u540e\uff0c\u901a\u8fc7\u9002\u5f53\u7684\u4e32\u884c\u901a\u8baf\u63a5\u53e3\uff08\u5982RS-485\uff09\u53d1\u9001\u5b83\uff0c\u5e76\u7b49\u5f85\u4ece\u8bbe\u5907\u7684\u54cd\u5e94\u3002\u54cd\u5e94\u683c\u5f0f\u548c\u8bf7\u6c42\u7c7b\u4f3c\uff0c\u4f46\u4e0d\u5305\u542b\u5b57\u8282\u8ba1\u6570\u548c\u6570\u636e\u90e8\u5206\u3002<\/p>\n<\/span>","protected":false},"excerpt":{"rendered":"
    Modbus RTU \u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u8be6\u89e3 1. \u534f\u8bae\u6982\u8ff0 Mo…<\/p>","protected":false},"author":1,"featured_media":25001,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1394],"tags":[690,241,560],"class_list":["post-25000","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modbus-protocol","tag-modbus-protocol","tag-rtu","tag-560"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/25000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=25000"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/25000\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/25001"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=25000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=25000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=25000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}