{"id":24655,"date":"2023-09-07T10:02:08","date_gmt":"2023-09-07T02:02:08","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=24655"},"modified":"2023-09-20T22:06:35","modified_gmt":"2023-09-20T14:06:35","slug":"modbus-tcp-vs-modbus-rtu-xuan-ze-shi-he-ni-de-tong-xin-fang-shi","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/24655.html","title":{"rendered":"Modbus TCP vs. Modbus RTU\uff1a\u9009\u62e9\u9002\u5408\u4f60\u7684\u901a\u4fe1\u65b9\u5f0f"},"content":{"rendered":"<p>\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u548c\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0cModbus\u901a\u4fe1\u534f\u8bae\u4e00\u76f4\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\u3002Modbus\u662f\u4e00\u79cd\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\uff0c\u4ee5\u5b9e\u73b0\u76d1\u63a7\u3001\u63a7\u5236\u548c\u6570\u636e\u91c7\u96c6\u7b49\u529f\u80fd\u3002\u7136\u800c\uff0cModbus\u901a\u4fe1\u53ef\u4ee5\u91c7\u7528\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f\uff1aModbus TCP\u548cModbus RTU\u3002\u9009\u62e9\u5408\u9002\u7684\u901a\u4fe1\u65b9\u5f0f\u5bf9\u4e8e\u786e\u4fdd\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3001\u6027\u80fd\u548c\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Modbus TCP\u548cModbus RTU\uff0c\u4ee5\u5e2e\u52a9\u60a8\u4e86\u89e3\u4f55\u65f6\u9009\u62e9\u54ea\u79cd\u901a\u4fe1\u65b9\u5f0f\u3002<\/p>\n<p><img data-dominant-color=\"d1dfd5\" data-has-transparency=\"false\" style=\"--dominant-color: #d1dfd5;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-24656 not-transparent\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230907100200970.webp\"  width=\"770\" height=\"267\" srcset=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230907100200970.webp 770w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230907100200970.webp?x-oss-process=image\/resize,m_lfit,w_600,h_208 600w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/09\/20230907100200970.webp?x-oss-process=image\/resize,m_lfit,w_768,h_266 768w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" ><\/p>\n<p>Modbus TCP\u548cModbus RTU\u7b80\u4ecb<\/p>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u7b80\u8981\u4e86\u89e3Modbus TCP\u548cModbus RTU\u7684\u57fa\u672c\u539f\u7406\u3002<\/p>\n<p>Modbus TCP<\/p>\n<p>Modbus TCP\u662f\u4e00\u79cd\u57fa\u4e8eTCP\/IP\u534f\u8bae\u7684Modbus\u53d8\u4f53\u3002\u5b83\u901a\u8fc7\u4ee5\u592a\u7f51\u8fde\u63a5\u4f20\u8f93\u6570\u636e\uff0c\u901a\u5e38\u7528\u4e8e\u5c40\u57df\u7f51\uff08LAN\uff09\u6216\u5e7f\u57df\u7f51\uff08WAN\uff09\u4e2d\u3002Modbus TCP\u4f7f\u7528\u6807\u51c6\u7684Modbus\u5bfb\u5740\u65b9\u6cd5\uff0c\u4f46\u6570\u636e\u5305\u88ab\u5c01\u88c5\u4e3aTCP\u6570\u636e\u5305\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u901a\u8fc7\u6807\u51c6\u7684\u4ee5\u592a\u7f51\u786c\u4ef6\u8fdb\u884c\u4f20\u8f93\u3002<\/p>\n<p>Modbus RTU<\/p>\n<p>Modbus RTU\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u901a\u5e38\u901a\u8fc7RS-232\u6216RS-485\u7b49\u4e32\u884c\u63a5\u53e3\u4f20\u8f93\u6570\u636e\u3002\u5b83\u4f7f\u7528\u4e8c\u8fdb\u5236\u7f16\u7801\u6765\u8868\u793a\u6570\u636e\uff0c\u901a\u4fe1\u901f\u5ea6\u8f83\u5feb\u3002Modbus RTU\u901a\u5e38\u7528\u4e8e\u957f\u8ddd\u79bb\u901a\u4fe1\uff0c\u56e0\u4e3a\u4e32\u884c\u901a\u4fe1\u53ef\u4ee5\u8986\u76d6\u66f4\u957f\u7684\u8ddd\u79bb\u800c\u4e0d\u4f1a\u964d\u4f4e\u6027\u80fd\u3002<\/p>\n<p>\u9009\u62e9\u901a\u4fe1\u65b9\u5f0f\u7684\u56e0\u7d20<\/p>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u8be6\u7ec6\u8ba8\u8bba\u9009\u62e9Modbus TCP\u8fd8\u662fModbus RTU\u7684\u5173\u952e\u56e0\u7d20\u3002<\/p>\n<p>1. \u7f51\u7edc\u57fa\u7840\u8bbe\u65bd<\/p>\n<p>Modbus TCP\u9700\u8981\u4ee5\u592a\u7f51\u57fa\u7840\u8bbe\u65bd\uff0c\u56e0\u6b64\u5b83\u66f4\u9002\u5408\u4e8e\u73b0\u4ee3\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\u5df2\u7ecf\u5b58\u5728\u4ee5\u592a\u7f51\u7f51\u7edc\u7684\u60c5\u51b5\u3002\u5982\u679c\u60a8\u7684\u8bbe\u5907\u5df2\u7ecf\u8fde\u63a5\u5230\u4ee5\u592a\u7f51\uff0c\u90a3\u4e48\u4f7f\u7528Modbus TCP\u901a\u4fe1\u53ef\u80fd\u66f4\u52a0\u65b9\u4fbf\u3002<\/p>\n<p>Modbus RTU\u5219\u4e0d\u9700\u8981\u4ee5\u592a\u7f51\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u4e32\u884c\u901a\u4fe1\u5728\u66f4\u5177\u6311\u6218\u6027\u7684\u73af\u5883\u4e2d\u5de5\u4f5c\uff0c\u4f8b\u5982\u8fdc\u7a0b\u76d1\u63a7\u7ad9\u70b9\u6216\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n<p>2. \u901a\u4fe1\u901f\u5ea6<\/p>\n<p>Modbus TCP\u901a\u5e38\u5177\u6709\u66f4\u9ad8\u7684\u901a\u4fe1\u901f\u5ea6\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5feb\u901f\u54cd\u5e94\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5982\u679c\u60a8\u7684\u7cfb\u7edf\u9700\u8981\u5b9e\u65f6\u6570\u636e\u4f20\u8f93\u6216\u4f4e\u5ef6\u8fdf\uff0cModbus TCP\u53ef\u80fd\u662f\u66f4\u597d\u7684\u9009\u62e9\u3002<\/p>\n<p>Modbus RTU\u867d\u7136\u4e5f\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u901f\u901a\u4fe1\uff0c\u4f46\u5b83\u901a\u5e38\u5728\u8f83\u4f4e\u7684\u901a\u4fe1\u901f\u5ea6\u4e0b\u5de5\u4f5c\uff0c\u7279\u522b\u662f\u5728\u957f\u8ddd\u79bb\u901a\u4fe1\u65f6\u3002\u56e0\u6b64\uff0c\u5982\u679c\u901f\u5ea6\u5bf9\u60a8\u7684\u5e94\u7528\u81f3\u5173\u91cd\u8981\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u8003\u8651Modbus TCP\u3002<\/p>\n<p>3. \u901a\u4fe1\u8ddd\u79bb<\/p>\n<p>\u901a\u4fe1\u8ddd\u79bb\u662f\u9009\u62e9Modbus\u901a\u4fe1\u65b9\u5f0f\u7684\u91cd\u8981\u8003\u8651\u56e0\u7d20\u3002Modbus TCP\u9002\u7528\u4e8e\u76f8\u5bf9\u8f83\u77ed\u7684\u901a\u4fe1\u8ddd\u79bb\uff0c\u901a\u5e38\u5728\u5c40\u57df\u7f51\u4e2d\u4f7f\u7528\u3002\u800cModbus RTU\u9002\u7528\u4e8e\u8986\u76d6\u66f4\u957f\u8ddd\u79bb\u7684\u901a\u4fe1\uff0c\u4f8b\u5982\u8fde\u63a5\u8fdc\u7a0b\u8bbe\u5907\u6216\u63a7\u5236\u7ad9\u70b9\u3002<\/p>\n<p>4. \u8bbe\u5907\u652f\u6301<\/p>\n<p>\u5728\u9009\u62e9\u901a\u4fe1\u65b9\u5f0f\u65f6\uff0c\u60a8\u8fd8\u5e94\u8003\u8651\u8bbe\u5907\u7684\u652f\u6301\u60c5\u51b5\u3002\u67d0\u4e9b\u8bbe\u5907\u53ef\u80fd\u4ec5\u652f\u6301\u4e00\u79cdModbus\u901a\u4fe1\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u60a8\u9700\u8981\u786e\u4fdd\u60a8\u7684\u8bbe\u5907\u4e0e\u60a8\u9009\u62e9\u7684\u901a\u4fe1\u65b9\u5f0f\u517c\u5bb9\u3002<\/p>\n<p>5. \u5b89\u5168\u6027<\/p>\n<p>Modbus TCP\u901a\u5e38\u901a\u8fc7\u6807\u51c6\u4ee5\u592a\u7f51\u5b89\u5168\u6027\u63aa\u65bd\u8fdb\u884c\u4fdd\u62a4\uff0c\u4f8b\u5982\u9632\u706b\u5899\u548c\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\u3002\u4e0e\u4e4b\u76f8\u6bd4\uff0cModbus RTU\u66f4\u52a0\u5c01\u95ed\uff0c\u56e0\u4e3a\u5b83\u901a\u5e38\u7528\u4e8e\u7269\u7406\u9694\u79bb\u7684\u73af\u5883\u3002\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u5bf9\u5b89\u5168\u6027\u6709\u4e25\u683c\u8981\u6c42\uff0cModbus TCP\u53ef\u80fd\u66f4\u5408\u9002\uff0c\u56e0\u4e3a\u5b83\u5177\u6709\u66f4\u5f3a\u7684\u5b89\u5168\u6027\u529f\u80fd\u3002<\/p>\n<p>\u7ed3\u8bba<\/p>\n<p>\u9009\u62e9Modbus TCP\u8fd8\u662fModbus RTU\u53d6\u51b3\u4e8e\u591a\u79cd\u56e0\u7d20\uff0c\u5305\u62ec\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u3001\u901a\u4fe1\u901f\u5ea6\u3001\u901a\u4fe1\u8ddd\u79bb\u3001\u8bbe\u5907\u652f\u6301\u548c\u5b89\u5168\u6027\u3002\u5728\u51b3\u5b9a\u4e4b\u524d\uff0c\u5efa\u8bae\u60a8\u4ed4\u7ec6\u8003\u8651\u60a8\u7684\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\uff0c\u5e76\u4e0e\u8bbe\u5907\u5236\u9020\u5546\u6216\u4e13\u4e1a\u5de5\u7a0b\u5e08\u8fdb\u884c\u54a8\u8be2\u3002\u65e0\u8bba\u60a8\u9009\u62e9\u54ea\u79cd\u901a\u4fe1\u65b9\u5f0f\uff0c\u90fd\u5e94\u786e\u4fdd\u5b83\u6ee1\u8db3\u60a8\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u548c\u63a7\u5236\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u8981\u6c42\u3002 Modbus TCP\u548cModbus RTU\u90fd\u662f\u5f3a\u5927\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u63d0\u4f9b\u7075\u6d3b\u7684\u89e3\u51b3\u65b9\u6848<\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u548c\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0cModbus\u901a\u4fe1\u534f\u8bae\u4e00\u76f4\u626e\u6f14\u7740\u91cd\u8981&#8230;<\/p>","protected":false},"author":1,"featured_media":24656,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1755],"tags":[241,237,281],"class_list":["post-24655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modbus-related","tag-rtu","tag-tcp","tag-281"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/24655","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=24655"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/24655\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/24656"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=24655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=24655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=24655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}