{"id":98388,"date":"2024-10-18T17:16:15","date_gmt":"2024-10-18T09:16:15","guid":{"rendered":"\/\/www.viralrail.com\/?p=98388"},"modified":"2024-10-18T17:16:19","modified_gmt":"2024-10-18T09:16:19","slug":"xyhmxyyym","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/98388.html","title":{"rendered":"485\u534f\u8bae\u548cModbus\u534f\u8bae\u4e00\u6837\u5417"},"content":{"rendered":"\n<p>\u3000\u3000<strong>RS-485\u534f\u8bae<\/strong>\u548c<strong>Modbus\u534f\u8bae<\/strong>\u5e76\u4e0d\u662f\u4e00\u6837\u7684\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u901a\u4fe1\u9886\u57df\u4e2d\u626e\u6f14\u7740\u4e0d\u540c\u7684\u89d2\u8272\u3002<\/p>\n\n\n\n<p>\u3000\u3000RS-485\u662f\u4e00\u79cd\u7269\u7406\u5c42\u6807\u51c6\uff0c\u4e3b\u8981\u7528\u4e8e\u5b9a\u4e49\u7535\u6c14\u63a5\u53e3\u548c\u4f20\u8f93\u4ecb\u8d28\u4e4b\u95f4\u7684\u8fde\u63a5\u65b9\u5f0f\u3002\u5b83\u662f\u4e00\u79cd\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\u6280\u672f\uff0c\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u3001\u591a\u8bbe\u5907\u7684\u4e32\u884c\u901a\u4fe1\u3002RS-485\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u901a\u4fe1\u534f\u8bae\uff0c\u5305\u62ecModbus\u534f\u8bae\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53e6\u4e00\u65b9\u9762\uff0cModbus\u534f\u8bae\u662f\u4e00\u79cd\u5e94\u7528\u5c42\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u4e0d\u540c\u5382\u5546\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u3002\u5b83\u5b9a\u4e49\u4e86\u6d88\u606f\u7ed3\u6784\u548c\u901a\u4fe1\u89c4\u5219\uff0c\u901a\u5e38\u901a\u8fc7RS-485\u7b49\u7269\u7406\u63a5\u53e3\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002Modbus\u534f\u8bae\u53ef\u4ee5\u8fd0\u884c\u5728\u591a\u79cd\u7269\u7406\u5c42\u4e0a\uff0c\u5982RS-232\u3001\u4ee5\u592a\u7f51(Modbus TCP)\u7b49\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662fRS-485.<\/p>\n\n\n\n<p>\u3000\u3000RS-485\u548cModbus\u534f\u8bae\u4e4b\u95f4\u5b58\u5728\u201c\u4f60\u4e2d\u6709\u6211\uff0c\u6211\u4e2d\u6709\u4f60\u201d\u7684\u5173\u7cfb\uff0c\u4f46\u5b83\u4eec\u5e76\u4e0d\u4e92\u76f8\u4f9d\u8d56\u3002RS-485\u662f\u786c\u4ef6\u63a5\u53e3\uff0c\u800cModbus\u662f\u8f6f\u4ef6\u534f\u8bae\u3002\u4e24\u8005\u7ed3\u5408\u4f7f\u7528\u65f6\uff0cRS-485\u63d0\u4f9b\u7269\u7406\u8fde\u63a5\uff0c\u800cModbus\u534f\u8bae\u5b9a\u4e49\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5177\u4f53\u65b9\u5f0f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 RS-485\u534f\u8bae\u7684\u5177\u4f53\u6280\u672f\u53c2\u6570\u548c\u7535\u6c14\u7279\u6027<\/h2>\n\n\n\n<p>\u3000\u3000RS-485\u534f\u8bae\u7684\u5177\u4f53\u6280\u672f\u53c2\u6570\u548c\u7535\u6c14\u7279\u6027\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u903b\u8f91\u7535\u5e73<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u903b\u8f91\u201c1\u201d\uff1a\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a+2V\u5230+6V\u4e4b\u95f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u903b\u8f91\u201c0\u201d\uff1a\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a-2V\u5230-6V\u4e4b\u95f4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u6570\u636e\u4f20\u8f93\u901f\u7387<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u6700\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a10Mbps\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u7535\u6c14\u7279\u6027<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000RS-485\u91c7\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\u65b9\u5f0f\uff0c\u80fd\u591f\u6709\u6548\u51cf\u5c11\u566a\u58f0\u5e72\u6270\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u63a5\u6536\u5668\u5171\u6a21\u7535\u538b\u8303\u56f4\u4e3a-7V\u81f3+12V\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u5dee\u5206\u8d1f\u8f7d\u4e3a60\u03a9\uff0c\u6bcf\u6761\u603b\u7ebf\u7ebf\u8def\u7684\u6700\u5927\u5171\u6a21\u8d1f\u8f7d\u4e3a375\u03a9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u63a5\u53e3\u7279\u6027<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000RS-485\u63a5\u53e3\u53ef\u4ee5\u91c7\u7528\u4e8c\u7ebf\u5236\u548c\u56db\u7ebf\u5236\u8fde\u63a5\u65b9\u5f0f\u3002\u4e8c\u7ebf\u5236\u53ef\u4ee5\u5b9e\u73b0\u771f\u6b63\u7684\u591a\u70b9\u53cc\u5411\u901a\u4fe1\uff0c\u800c\u56db\u7ebf\u5236\u5219\u53ea\u80fd\u5b9e\u73b0\u70b9\u5bf9\u591a\u7684\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u603b\u7ebf\u4e0a\u6700\u591a\u53ef\u4ee5\u8fde\u63a532\u4e2a\u8bbe\u5907\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005.&nbsp;<strong>\u5176\u4ed6\u7279\u6027<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000RS-485\u6ee1\u8db3\u6240\u6709RS-422\u7684\u89c4\u8303\uff0c\u56e0\u6b64\u5176\u9a71\u52a8\u5668\u53ef\u4ee5\u5728RS-422\u7f51\u7edc\u4e2d\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u7ea6\u4e3a1219\u7c73\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 Modbus\u534f\u8bae\u652f\u6301\u54ea\u4e9b\u5177\u4f53\u7684\u6570\u636e\u4f20\u8f93\u529f\u80fd\u548c\u547d\u4ee4?<\/h2>\n\n\n\n<p>\u3000\u3000Modbus\u534f\u8bae\u652f\u6301\u591a\u79cd\u5177\u4f53\u7684\u6570\u636e\u4f20\u8f93\u529f\u80fd\u548c\u547d\u4ee4\uff0c\u8fd9\u4e9b\u529f\u80fd\u548c\u547d\u4ee4\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u548c\u8bfb\u53d6\u8bbe\u5907\u7684\u72b6\u6001\u3001\u53c2\u6570\u548c\u8fc7\u7a0b\u503c\u3002\u4ee5\u4e0b\u662fModbus\u534f\u8bae\u652f\u6301\u7684\u4e00\u4e9b\u4e3b\u8981\u529f\u80fd\u7801\u53ca\u5176\u542b\u4e49\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u529f\u80fd\u780101H\uff08Read Holding Registers\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u4e2d\u7684\u6570\u636e\u3002\u9700\u8981\u6307\u5b9a\u8d77\u59cb\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780103H\uff08Read Input Registers\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u4e2d\u7684\u6570\u636e\u3002\u540c\u6837\u9700\u8981\u6307\u5b9a\u8d77\u59cb\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780106H\uff08Write Multiple Holding Registers\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u591a\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u6570\u636e\u3002\u9700\u8981\u6307\u5b9a\u8d77\u59cb\u5730\u5740\u548c\u8981\u5199\u5165\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780116H\uff08Write Multiple Input Registers\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u591a\u4e2a\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780117H\uff08Write Single Register\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u5355\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780124H\uff08Mask Write Register\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5bf9\u4fdd\u6301\u5bc4\u5b58\u5668\u8fdb\u884c\u90e8\u5206\u5199\u5165\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780125H\uff08Write Multiple coils\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u591a\u4e2a\u7ebf\u5708\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780126H\uff08Report slave ID\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u62a5\u544a\u4ece\u8bbe\u5907\u7684ID\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780127H\uff08Read File Record\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684\u6587\u4ef6\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780128H\uff08Write File Record\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u4ece\u8bbe\u5907\u7684\u6587\u4ef6\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u780129H\uff08Read Device Identification\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684\u8bc6\u522b\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u78012AH\uff08Write Device Identification\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u4ece\u8bbe\u5907\u7684\u8bc6\u522b\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u78012BH\uff08Read\/Dk\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684Dk\u503c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u78012CH\uff08Write Dk\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u4ece\u8bbe\u5907\u7684Dk\u503c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u78012DH\uff08Read Factory Settings\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u8bfb\u53d6\u4ece\u8bbe\u5907\u7684\u51fa\u5382\u8bbe\u7f6e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u78012EH\uff08Write Factory Settings\uff09<\/strong>&nbsp;\uff1a\u7528\u4e8e\u5199\u5165\u4ece\u8bbe\u5907\u7684\u51fa\u5382\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cModbus\u534f\u8bae\u8fd8\u652f\u6301ASCII\u548cRTU\u4e24\u79cd\u4f20\u8f93\u6a21\u5f0f\u3002ASCII\u6a21\u5f0f\u5c06\u6bcf\u4e2a\u5b57\u8282\u8f6c\u6362\u4e3a\u4e24\u4e2a\u5b57\u7b26\u7684ASCII\u4ee3\u7801\uff0c\u800cRTU\u6a21\u5f0f\u5219\u76f4\u63a5\u4f20\u8f93\u6bcf\u4e2a\u5b57\u8282\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5982\u4f55\u5728RS-485\u7269\u7406\u5c42\u4e0a\u5b9e\u73b0Modbus\u534f\u8bae\u7684\u901a\u4fe1?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728RS-485\u7269\u7406\u5c42\u4e0a\u5b9e\u73b0Modbus\u534f\u8bae\u7684\u901a\u4fe1\uff0c\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\u548c\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u9009\u62e9\u5408\u9002\u7684\u7269\u7406\u63a5\u53e3<\/strong>\uff1aModbus\u534f\u8bae\u7684\u7269\u7406\u5c42\u5b9e\u73b0\u901a\u5e38\u4f7f\u7528RS-485\u63a5\u53e3\uff0c\u56e0\u4e3a\u5b83\u652f\u6301\u591a\u8282\u70b9\u3001\u4f20\u8f93\u8ddd\u79bb\u8fdc\u4e14\u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff0c\u9002\u5408\u5de5\u4e1a\u63a7\u5236\u73af\u5883\u3002RS-485\u53ef\u4ee5\u91c7\u7528\u4e24\u7ebf\u5236\u6216\u56db\u7ebf\u5236\u63a5\u53e3\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8bbe\u7f6e\u901a\u4fe1\u53c2\u6570<\/strong>\uff1a\u5728\u914d\u7f6eModbus RTU(Remote Terminal Unit)\u901a\u4fe1\u65f6\uff0c\u9700\u8981\u8bbe\u7f6e\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u5947\u5076\u6821\u9a8c\u548c\u505c\u6b62\u4f4d\u7b49\u53c2\u6570\uff0c\u5e76\u786e\u4fdd\u7f51\u7edc\u4e2d\u7684\u6240\u6709\u8bbe\u5907\u901a\u4fe1\u53c2\u6570\u4e00\u81f4\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8fde\u63a5\u65b9\u5f0f<\/strong>\uff1aRS-485\u901a\u4fe1\u7f51\u7edc\u901a\u5e38\u91c7\u7528\u4e00\u4e2a\u4e3b\u673a\u5e26\u591a\u4e2a\u4ece\u673a\u7684\u7ed3\u6784\u3002\u8fde\u63a5\u65f6\uff0c\u4f7f\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u5c06\u5404\u4e2a\u63a5\u53e3\u7684&#8221;A&#8221;\u548c&#8221;B&#8221;\u4e24\u7aef\u8fde\u63a5\u8d77\u6765\u3002\u63a5\u53e3\u8fde\u63a5\u5668\u901a\u5e38\u91c7\u7528DB-9\u76849\u82af\u63d2\u5ea7\u5934\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93<\/strong>\uff1aRS-485\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\uff0c\u786e\u4fdd\u4fe1\u53f7\u5728\u8fdc\u8ddd\u79bb\u4f20\u8f93\u65f6\u7684\u5b8c\u6574\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8bbe\u5907\u914d\u7f6e<\/strong>\uff1a\u4e3b\u7ad9\u548c\u4ece\u7ad9\u8bbe\u5907\u90fd\u9700\u8981\u6b63\u786e\u914d\u7f6eModbus\u534f\u8bae\u3002\u4e3b\u7ad9\u8d1f\u8d23\u53d1\u8d77\u8bf7\u6c42\uff0c\u4ece\u7ad9\u5219\u6839\u636e\u8bf7\u6c42\u8fd4\u56de\u76f8\u5e94\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u81ea\u52a8\u68c0\u6d4b\u548c\u4f9b\u7535<\/strong>\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8bbe\u5907\u4f1a\u5728\u901a\u7535\u540e\u81ea\u52a8\u6fc0\u6d3b\u901a\u4fe1\u68c0\u6d4b\u6a21\u5f0f\uff0c\u5e76\u901a\u8fc7\u603b\u7ebf\u8fde\u63a5\u5668\u4f9b\u7535\uff0c\u4ee5\u907f\u514d\u635f\u574f\u8bbe\u5907\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 RS-485\u4e0e\u5176\u4ed6\u7269\u7406\u5c42\u6807\u51c6(\u5982RS-232\u3001\u4ee5\u592a\u7f51)\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\u7684\u4f18\u7f3a\u70b9\u6bd4\u8f83\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000RS-485\u3001RS-232\u548c\u4ee5\u592a\u7f51\u662f\u4e09\u79cd\u5e38\u7528\u7684\u7269\u7406\u5c42\u6807\u51c6\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\u5404\u6709\u4f18\u7f3a\u70b9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. RS-485<\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5f3a<\/strong>\uff1aRS-485\u91c7\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\u65b9\u5f0f\uff0c\u80fd\u591f\u6709\u6548\u62b5\u6297\u7535\u78c1\u5e72\u6270\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u5de5\u4e1a\u73af\u5883\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u652f\u6301\u957f\u8ddd\u79bb\u901a\u4fe1<\/strong>\uff1aRS-485\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u52301200\u7c73\uff0c\u9002\u5408\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u652f\u6301\u591a\u70b9\u901a\u4fe1<\/strong>\uff1aRS-485\u652f\u6301\u591a\u70b9\u901a\u4fe1\uff0c\u53ef\u4ee5\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\uff0c\u9002\u7528\u4e8e\u591a\u8bbe\u5907\u901a\u4fe1\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6210\u672c\u6548\u76ca\u9ad8<\/strong>\uff1aRS-485\u7684\u5e03\u7ebf\u8981\u6c42\u7b80\u5355\uff0c\u6210\u672c\u8f83\u4f4e\uff0c\u9002\u5408\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f20\u8f93\u901f\u7387\u8f83\u4f4e<\/strong>\uff1aRS-485\u7684\u6700\u5927\u4f20\u8f93\u901f\u5ea6\u4e3a10Mbps\uff0c\u76f8\u6bd4\u4ee5\u592a\u7f51\u768410Gbps\u8981\u6162\u5f88\u591a\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5b89\u5168\u6027\u8f83\u4f4e<\/strong>\uff1aRS-485\u4e0d\u652f\u6301\u7f51\u7edc\u5b89\u5168\u529f\u80fd\uff0c\u5b89\u5168\u6027\u4e0d\u5982\u4ee5\u592a\u7f51\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. RS-232<\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7b80\u5355\u6613\u7528<\/strong>\uff1aRS-232\u63a5\u53e3\u7b80\u5355\uff0c\u6613\u4e8e\u5b9e\u73b0\u548c\u7ef4\u62a4\uff0c\u9002\u5408\u70b9\u5bf9\u70b9\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6210\u672c\u4f4e<\/strong>\uff1aRS-232\u7684\u786c\u4ef6\u6210\u672c\u8f83\u4f4e\uff0c\u9002\u5408\u9884\u7b97\u6709\u9650\u7684\u9879\u76ee\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5dee<\/strong>\uff1aRS-232\u91c7\u7528\u5355\u7aef\u4fe1\u53f7\u4f20\u8f93\uff0c\u6297\u5e72\u6270\u80fd\u529b\u8f83\u5f31\uff0c\u4e0d\u9002\u5408\u590d\u6742\u7684\u5de5\u4e1a\u73af\u5883\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f20\u8f93\u8ddd\u79bb\u77ed<\/strong>\uff1aRS-232\u7684\u4f20\u8f93\u8ddd\u79bb\u901a\u5e38\u4e0d\u8d85\u8fc750\u7c73\uff0c\u4e0d\u9002\u5408\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8fde\u63a5\u8bbe\u5907\u6570\u91cf\u6709\u9650<\/strong>\uff1aRS-232\u901a\u5e38\u7528\u4e8e\u70b9\u5bf9\u70b9\u901a\u4fe1\uff0c\u8fde\u63a5\u8bbe\u5907\u6570\u91cf\u6709\u9650\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u4ee5\u592a\u7f51<\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u901f\u4f20\u8f93<\/strong>\uff1a\u4ee5\u592a\u7f51\u7684\u6700\u5927\u4f20\u8f93\u901f\u5ea6\u53ef\u8fbe10Gbps\uff0c\u4f20\u8f93\u901f\u7387\u8fdc\u9ad8\u4e8eRS-485.<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u957f\u8ddd\u79bb\u4f20\u8f93<\/strong>\uff1a\u4ee5\u592a\u7f51\u7684\u4f20\u8f93\u8ddd\u79bb\u6700\u957f\u53ef\u8fbe100\u7c73\uff0c\u9002\u5408\u4e2d\u77ed\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u5b89\u5168\u6027<\/strong>\uff1a\u4ee5\u592a\u7f51\u652f\u6301\u7f51\u7edc\u5b89\u5168\u529f\u80fd\uff0c\u5b89\u5168\u6027\u8f83\u9ad8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u591a\u529f\u80fd\u6027<\/strong>\uff1a\u4ee5\u592a\u7f51\u4e0d\u4ec5\u652f\u6301\u6570\u636e\u4f20\u8f93\uff0c\u8fd8\u652f\u6301\u7f51\u7edc\u529f\u80fd\uff0c\u5982\u6587\u4ef6\u5171\u4eab\u3001\u6253\u5370\u7b49\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5e03\u7ebf\u8981\u6c42\u9ad8<\/strong>\uff1a\u4ee5\u592a\u7f51\u9700\u8981\u4f7f\u75288\u82af\u5c4f\u853d\u7ebf\uff0c\u5e03\u7ebf\u590d\u6742\u4e14\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6210\u672c\u8f83\u9ad8<\/strong>\uff1a\u76f8\u6bd4RS-485.\u4ee5\u592a\u7f51\u7684\u786c\u4ef6\u548c\u5e03\u7ebf\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n\n\n\n<p>\u3000\u3000RS-485\u5728\u6297\u5e72\u6270\u80fd\u529b\u3001\u957f\u8ddd\u79bb\u901a\u4fe1\u548c\u591a\u70b9\u901a\u4fe1\u65b9\u9762\u5177\u6709\u4f18\u52bf\uff0c\u4f46\u4f20\u8f93\u901f\u7387\u548c\u5b89\u5168\u6027\u8f83\u4f4e;RS-232\u7b80\u5355\u6613\u7528\u4e14\u6210\u672c\u4f4e\uff0c\u4f46\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8ddd\u79bb\u6709\u9650;\u4ee5\u592a\u7f51\u5219\u5728\u4f20\u8f93\u901f\u7387\u3001\u5b89\u5168\u6027\u548c\u591a\u529f\u80fd\u6027\u65b9\u9762\u8868\u73b0\u4f18\u5f02\uff0c\u4f46\u5e03\u7ebf\u8981\u6c42\u9ad8\u4e14\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 Modbus\u534f\u8bae\u5728\u4e0d\u540c\u7269\u7406\u5c42\u4e0a\u7684\u5b9e\u73b0\u65b9\u5f0f\u6709\u54ea\u4e9b\u5dee\u5f02?<\/h2>\n\n\n\n<p>\u3000\u3000Modbus\u534f\u8bae\u5728\u4e0d\u540c\u7269\u7406\u5c42\u4e0a\u7684\u5b9e\u73b0\u65b9\u5f0f\u5b58\u5728\u663e\u8457\u5dee\u5f02\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u7269\u7406\u5c42\u7684\u9009\u62e9\u548c\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u4e0a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u7269\u7406\u5c42\u9009\u62e9<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>RS-232\u3001RS-485\u3001RS-422<\/strong>\uff1a\u8fd9\u4e9b\u662f\u5e38\u89c1\u7684\u7269\u7406\u5c42\u6807\u51c6\uff0c\u7528\u4e8e\u4e32\u884c\u901a\u4fe1\u3002\u4f8b\u5982\uff0cModbus RTU\u901a\u5e38\u4f7f\u7528RS-485\u4f5c\u4e3a\u7269\u7406\u5c42\uff0c\u4ee5\u5b9e\u73b0\u957f\u8ddd\u79bb\u548c\u591a\u70b9\u901a\u4fe1\u3002RS-232\u5219\u5e38\u7528\u4e8e\u8f83\u77ed\u8ddd\u79bb\u7684\u70b9\u5bf9\u70b9\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4ee5\u592a\u7f51\uff08Ethernet\uff09<\/strong>&nbsp;\uff1aModbus TCP\/IP\u7248\u672c\u8fd0\u884c\u5728\u4ee5\u592a\u7f51\u7269\u7406\u5c42\u4e0a\uff0c\u652f\u6301\u901a\u8fc7TCP\/IP\u534f\u8bae\u6808\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002\u8fd9\u4f7f\u5f97Modbus\u53ef\u4ee5\u5728\u5c40\u57df\u7f51(LAN)\u73af\u5883\u4e2d\u9ad8\u6548\u5730\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u6570\u636e\u4f20\u8f93\u65b9\u5f0f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>Modbus RTU<\/strong>\uff1a\u4f7f\u7528\u7d27\u51d1\u7684\u4e8c\u8fdb\u5236\u683c\u5f0f\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u5305\u542b\u547d\u4ee4\/\u6570\u636e\u548c\u5faa\u73af\u5197\u4f59\u6821\u9a8c(CRC)\u4f5c\u4e3a\u9519\u8bef\u68c0\u67e5\u673a\u5236\u3002\u6d88\u606f\u5fc5\u987b\u8fde\u7eed\u4f20\u8f93\uff0c\u65e0\u5b57\u7b26\u95f4\u505c\u987f\uff0c\u5e76\u901a\u8fc7\u7a7a\u95f2\u5468\u671f\u8fdb\u884c\u5e27\u5b9a\u754c\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Modbus ASCII<\/strong>\uff1a\u4f7f\u7528ASCII\u5b57\u7b26\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u91c7\u7528\u7eb5\u5411\u5197\u4f59\u6821\u9a8c(LRC)\u4f5c\u4e3a\u9519\u8bef\u68c0\u67e5\u673a\u5236\u3002\u6d88\u606f\u4ee5\u5192\u53f7(:)\u5f00\u5934\uff0c\u4ee5\u56de\u8f66\u6362\u884c(CR\/LF)\u7ed3\u5c3e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Modbus TCP\/IP<\/strong>\uff1a\u4f7f\u75286\u5b57\u8282\u6807\u5934\u6765\u5141\u8bb8\u8def\u7531\uff0c\u5e76\u4e14\u5728\u4ee5\u592a\u7f51\u7269\u7406\u5c42\u4e0a\u8fd0\u884c\uff0c\u652f\u6301\u591a\u70b9\u548c\u5bf9\u7b49\u7f51\u7edc\u901a\u4fe1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u5b9e\u73b0\u6a21\u578b<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>Modbus over Serial Line<\/strong>\uff1a\u91c7\u7528\u4e09\u5c42\u6a21\u578b(\u5e94\u7528\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42\u548c\u7269\u7406\u5c42)\uff0c\u5176\u4e2d\u6570\u636e\u94fe\u8def\u5c42\u7531Modbus Serial Line\u534f\u8bae\u7ec4\u6210\uff0c\u7269\u7406\u5c42\u53ef\u4ee5\u9009\u62e9EIA-232C\u6216EIA-485\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>Modbus over Ethernet<\/strong>\uff1a\u5728\u4ee5\u592a\u7f51\u7269\u7406\u5c42\u4e0a\u8fd0\u884c\uff0c\u652f\u6301\u591a\u70b9\u548c\u5bf9\u7b49\u7f51\u7edc\u901a\u4fe1\uff0c\u4f7f\u7528TCP\/IP\u534f\u8bae\u6808\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf<\/strong>\uff1a\u57fa\u4e8eRS485\u7269\u7406\u5c42\u7684Modbus\/JBus\u73b0\u573a\u603b\u7ebf\u901a\u4fe1\u534f\u8bae\u5e38\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d\uff0c\u91c7\u7528\u4e3b\u673a\u4ece\u673a\u6a21\u5f0f\u5b9e\u73b0\u8bbe\u5907\u7684\u9002\u65f6\u63a7\u5236\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5c40\u57df\u7f51\u901a\u4fe1<\/strong>\uff1aModbus TCP\/IP\u7248\u672c\u9002\u7528\u4e8e\u5c40\u57df\u7f51\u73af\u5883\uff0c\u652f\u6301\u591a\u70b9\u548c\u5bf9\u7b49\u7f51\u7edc\u901a\u4fe1\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u548c\u5efa\u7b51\u81ea\u52a8\u5316\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p>\u3000\u3000Modbus\u534f\u8bae\u5728\u4e0d\u540c\u7269\u7406\u5c42\u4e0a\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u4f53\u73b0\u5728\u7269\u7406\u5c42\u7684\u9009\u62e9\u3001\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u4ee5\u53ca\u5b9e\u73b0\u6a21\u578b\u4e0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RS-485\u548cModbus\u534f\u8bae\u4e4b\u95f4\u5b58\u5728\u201c\u4f60\u4e2d\u6709\u6211\uff0c\u6211\u4e2d\u6709\u4f60\u201d\u7684\u5173\u7cfb\uff0c\u4f46\u5b83\u4eec\u5e76\u4e0d\u4e92\u76f8\u4f9d\u8d56\u3002RS-485\u662f\u786c\u4ef6\u63a5\u53e3\uff0c\u800cModbus\u662f\u8f6f\u4ef6\u534f\u8bae\u3002\u4e24\u8005\u7ed3\u5408\u4f7f\u7528\u65f6<\/p>\n","protected":false},"author":1,"featured_media":96820,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[78,61],"class_list":["post-98388","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-m-3","tag-r"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/98388"}],"collection":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/comments?post=98388"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/98388\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/96820"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=98388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=98388"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=98388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}