{"id":42655,"date":"2026-06-17T23:54:34","date_gmt":"2026-06-17T15:54:34","guid":{"rendered":"https:\/\/www.modbus.cn\/42655.html"},"modified":"2026-06-25T22:33:28","modified_gmt":"2026-06-25T14:33:28","slug":"modbus-dtu439s-serial-to-network-converter","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/42655.html","title":{"rendered":"MODBUS DTU439S \u7f51\u7edc\u4e32\u53e3\u4e92\u8f6c\u6a21\u5757 \u2014 RS485+RS232\u2194TCP\/MQTT\/UDP\/HTTP\u56db\u901a\u9053\u5e76\u884c"},"content":{"rendered":"<h2>\u4ea7\u54c1\u6982\u8ff0<\/h2>\n<p><strong>MODBUS DTU439S(HADTU439S)<\/strong>\u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u7684\u5de5\u4e1a\u7ea7\u7f51\u7edc\u4e32\u53e3\u4e92\u8f6c\u6a21\u5757\uff0c\u540c\u65f6\u63d0\u4f9bRS485\u548cRS232\u63a5\u53e3\uff0c\u652f\u6301\u5c06\u4e32\u53e3\u6570\u636e<strong>\u5e76\u884c\u8f6c\u6362<\/strong>\u5230TCP\u3001MQTT\u3001UDP\u3001HTTP\u56db\u79cd\u7f51\u7edc\u534f\u8bae\u3002\u5185\u7f6eModbus RTU\u2194Modbus TCP\u900f\u660e\u7f51\u5173\u529f\u80fd\uff0c\u662f\u8fde\u63a5\u4f20\u7edfModbus\u8bbe\u5907\u4e0eHome Assistant\u3001\u7269\u8054\u7f51\u4e91\u5e73\u53f0\u7684\u6838\u5fc3\u6865\u6881\u3002<\/p>\n<h2>\u56db\u901a\u9053\u5e76\u884c\u67b6\u6784<\/h2>\n<table>\n<tr>\n<th>\u901a\u9053<\/th>\n<th>\u534f\u8bae<\/th>\n<th>\u9002\u7528\u573a\u666f<\/th>\n<\/tr>\n<tr>\n<td><strong>TCP Server\/Client<\/strong><\/td>\n<td>TCP\/IP<\/td>\n<td>\u4e32\u53e3\u8bbe\u5907\u63a5\u5165\u4ee5\u592a\u7f51\uff0c\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u76f4\u8fde<\/td>\n<\/tr>\n<tr>\n<td><strong>MQTT<\/strong><\/td>\n<td>MQTT v3.1.1<\/td>\n<td>\u63a5\u5165\u7269\u8054\u7f51\u5e73\u53f0(HA\/AWS IoT\/\u963f\u91cc\u4e91IoT)<\/td>\n<\/tr>\n<tr>\n<td><strong>UDP<\/strong><\/td>\n<td>UDP<\/td>\n<td>\u4f4e\u5ef6\u8fdf\u5e7f\u64ad\u901a\u4fe1<\/td>\n<\/tr>\n<tr>\n<td><strong>HTTP Client<\/strong><\/td>\n<td>HTTP GET\/POST<\/td>\n<td>\u89e6\u53d1Webhook\u6216REST API\u8c03\u7528<\/td>\n<\/tr>\n<\/table>\n<h2>\u6838\u5fc3\u529f\u80fd<\/h2>\n<ul>\n<li><strong>\u53cc\u4e32\u53e3<\/strong>\uff1a1\u8defRS485 + 1\u8defRS232\uff0c\u53ef\u540c\u65f6\u5de5\u4f5c<\/li>\n<li><strong>Modbus\u7f51\u5173<\/strong>\uff1aModbus RTU \u2194 Modbus TCP\u53cc\u5411\u900f\u660e\u8f6c\u6362\uff0cHA Modbus TCP\u96c6\u6210\u76f4\u63a5\u4f7f\u7528<\/li>\n<li><strong>MQTT\u6865\u63a5<\/strong>\uff1a\u4e32\u53e3\u6570\u636e\u81ea\u52a8\u53d1\u5e03\u5230MQTT\u4e3b\u9898\uff0cHA\u901a\u8fc7MQTT\u96c6\u6210\u63a5\u6536<\/li>\n<li><strong>RST\u590d\u4f4d<\/strong>\uff1a\u77ed\u6309\u91cd\u542f\u8bbe\u5907\uff0c\u957f\u6309\u6062\u590d\u51fa\u5382\u8bbe\u7f6e\uff08\u65b9\u4fbf\u8c03\u8bd5\uff09<\/li>\n<li><strong>\u7f51\u9875\u914d\u7f6e<\/strong>\uff1a\u5185\u7f6eWeb\u914d\u7f6e\u9875\u9762\uff0c\u6d4f\u89c8\u5668\u76f4\u63a5\u8bbe\u7f6e\u53c2\u6570<\/li>\n<\/ul>\n<h2>HA\u96c6\u6210<\/h2>\n<p>\u63a8\u8350\u65b9\u6848\uff1aModbus RTU\u8bbe\u5907\u2192DTU439S(TCP\u6a21\u5f0f)\u2192HA\u4e2dModbus TCP\u96c6\u6210\u3002\u53ea\u9700\u5728HA configuration.yaml\u4e2d\u6dfb\u52a0Modbus TCP\u914d\u7f6e\uff0c\u6307\u5411DTU439S\u7684IP+\u7aef\u53e3\u5373\u53ef\u3002<\/p>\n<h2>\u6280\u672f\u89c4\u683c<\/h2>\n<ul>\n<li>\u4f9b\u7535\uff1aDC 5-36V\u5bbd\u7535\u538b<\/li>\n<li>\u7f51\u7edc\uff1aRJ45 10\/100M<\/li>\n<li>\u4e32\u53e3\u53c2\u6570\uff1a\u6ce2\u7279\u73872400-460800\uff0c\u6570\u636e\u4f4d\/\u6821\u9a8c\/\u505c\u6b62\u4f4d\u53ef\u8bbe<\/li>\n<li>\u5de5\u4f5c\u6e29\u5ea6\uff1a-40~85\u00b0C<\/li>\n<li>\u5b89\u88c5\uff1aDIN\u5bfc\u8f68<\/li>\n<\/ul>\n<hr \/>\n<h2>\ud83d\uded2 \u8d2d\u4e70\u4e0e\u54a8\u8be2<\/h2>\n<p>\u672c\u6587\u4ecb\u7ecd\u7684\u83ab\u5fb7\u5df4\u65af\uff08MODBUS\uff09\u4ea7\u54c1\u5747\u53ef\u5728\u5b98\u65b9\u6e20\u9053\u8d2d\u4e70\u3002<\/p>\n<p>\ud83d\udccd <strong>\u83ab\u5fb7\u5df4\u65af\u667a\u80fd<\/strong> | \u4e2d\u56fd\u91cd\u5e86\u6c5f\u5317\u89c2\u97f3\u6865\u6717\u6674\u5e7f\u573aA\u585412\u697c<br \/>\n\ud83d\udcde \u7535\u8bdd\uff1a+86-18801054468<br \/>\n\ud83d\udce7 \u90ae\u7bb1\uff1aiot@modbus.com | \ud83c\udf10 \u5b98\u7f51\uff1a<a href=\"https:\/\/www.modbus.cn\/en\/\" rel=\"noopener noreferrer nofollow\">www.modbus.cn<\/a><br \/>\n\ud83d\udcf1 \u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u641c\u7d22 <strong>\u300cmodbus\u8c03\u8bd5\u52a9\u624b\u300d<\/strong> \u4e86\u89e3\u66f4\u591a\u4ea7\u54c1\u4fe1\u606f<\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>MODBUS DTU439S \u6a21\u5757 \u2014  RTU\/TCP\u534f\u8bae\uff0cRS485\u901a\u4fe1\u63a5\u53e3\uff0c\u53ef\u63a5\u5165Modbus\u7269\u8054\u7f51\u4e91\u5e73\u53f0\u5b9e\u73b0\u8fdc\u7a0b\u76d1\u63a7\u548c\u6570\u636e\u91c7\u96c6\u3002\u9002\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u7269\u8054\u7f51\u9879\u76ee\u96c6\u6210\u3002<\/p>","protected":false},"author":1,"featured_media":27977,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[2089],"tags":[676,1087,690,628,648,649,638,1775,1149],"class_list":["post-42655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-shuomingshu","tag-dtu","tag-modbus-tcp","tag-modbus-protocol","tag-mqtt","tag-rs-232","tag-rs-485","tag-tcp","tag-1775","tag-1149"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/42655","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=42655"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/42655\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/27977"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=42655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=42655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=42655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}