{"id":46750,"date":"2023-09-30T10:00:15","date_gmt":"2023-09-30T02:00:15","guid":{"rendered":"\/\/www.viralrail.com\/?p=46750"},"modified":"2023-09-30T10:02:18","modified_gmt":"2023-09-30T02:02:18","slug":"mxyhs","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/46750.html","title":{"rendered":"Modbus\u534f\u8bae\uff1a485\u8fd8\u662f232\uff1f"},"content":{"rendered":"

  Modbus\u534f\u8bae\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\u7528\u4e8e\u8fde\u63a5\u5404\u79cd\u8bbe\u5907\uff0c\u4ee5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u548c\u63a7\u5236\u3002\u7531\u4e8eModbus\u534f\u8bae\u7684\u7075\u6d3b\u6027\u548c\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5b83\u5df2\u7ecf\u6210\u4e3a\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u534f\u8bae\u3002\u5728\u4f7f\u7528Modbus\u534f\u8bae\u65f6\uff0c\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u662f\uff1a\u5b83\u662f\u4f7f\u7528RS485\u8fd8\u662fRS232\u4f5c\u4e3a\u7269\u7406\u5c42\u7684\u4f20\u8f93\u4ecb\u8d28\u3002\u672c\u6587\u5c06\u89e3\u7b54\u8fd9\u4e2a\u95ee\u9898\uff0c\u5e76\u4ecb\u7ecd\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684Modbus\u534f\u8bae\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n

RS485 vs RS232<\/h2>\n

  RS485\u548cRS232\u90fd\u662f\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4eec\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u7528\u4e8e\u4f20\u8f93\u6570\u636e\u7684\u7269\u7406\u5c42\u6280\u672f\u3002RS485\u662f\u4e00\u79cd\u9ad8\u901f\u3001\u9ad8\u6548\u7387\u7684\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4f7f\u7528\u4e24\u6761\u7ebf\uff0c\u4e00\u6761\u7528\u4e8e\u53d1\u9001\u6570\u636e\uff0c\u4e00\u6761\u7528\u4e8e\u63a5\u6536\u6570\u636e\u3002\u5b83\u5177\u6709\u8f83\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u6700\u9ad8\u53ef\u8fbe10Mbps\u3002RS232\u662f\u4e00\u79cd\u66f4\u6162\u7684\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u53ea\u4f7f\u7528\u4e00\u6761\u7ebf\uff0c\u53ef\u4ee5\u4f20\u8f93\u6570\u636e\u7684\u901f\u7387\u6700\u9ad8\u53ef\u8fbe115.2Kbps\u3002<\/p>\n

  RS485\u4f18\u52bf<\/h3>\n

  RS485\u7684\u6700\u5927\u4f18\u52bf\u662f\u5b83\u53ef\u4ee5\u652f\u6301\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u8fdb\u884c\u901a\u4fe1\uff0c\u53ef\u4ee5\u652f\u6301\u6700\u591a32\u4e2a\u8bbe\u5907\u3002\u6b64\u5916\uff0cRS485\u8fd8\u5177\u6709\u8f83\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u53ef\u4ee5\u652f\u6301\u66f4\u591a\u7684\u6570\u636e\u4f20\u8f93\u3002\u6b64\u5916\uff0cRS485\u8fd8\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u6700\u957f\u53ef\u8fbe1200\u7c73\uff0c\u800cRS232\u53ea\u80fd\u4f20\u8f93\u77ed\u8ddd\u79bb\u7684\u6570\u636e\uff0c\u6700\u957f\u53ea\u80fd\u4f20\u8f9315\u7c73\u7684\u6570\u636e\u3002<\/p>\n

  RS232\u4f18\u52bf<\/h3>\n

  RS232\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5b83\u7684\u7075\u6d3b\u6027\u548c\u6613\u7528\u6027\u3002\u5b83\u53ef\u4ee5\u4f7f\u7528\u6807\u51c6\u7684\u7535\u7f06\u8fde\u63a5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7b80\u5355\u7684\u8fde\u63a5\uff0c\u800cRS485\u5219\u9700\u8981\u4f7f\u7528\u7279\u6b8a\u7684\u8fde\u63a5\u7ebf\uff0c\u8fd9\u4f7f\u5f97\u5b83\u7684\u8fde\u63a5\u66f4\u52a0\u590d\u6742\u3002\u53e6\u5916\uff0cRS232\u8fd8\u5177\u6709\u8f83\u4f4e\u7684\u6210\u672c\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u5b9e\u65bd\u6210\u672c\u3002<\/p>\n

\u5e94\u7528\u573a\u666f<\/h2>\n

  \u5728\u4f7f\u7528Modbus\u534f\u8bae\u65f6\uff0c\u9009\u62e9\u4f7f\u7528RS485\u8fd8\u662fRS232\u53d6\u51b3\u4e8e\u5e94\u7528\u573a\u666f\u3002\u5982\u679c\u9700\u8981\u5b9e\u73b0\u5927\u8303\u56f4\u7684\u6570\u636e\u4f20\u8f93\uff0c\u5982\u5de5\u5382\u81ea\u52a8\u5316\u7cfb\u7edf\uff0c\u5219\u5e94\u8be5\u4f7f\u7528RS485\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u652f\u6301\u66f4\u957f\u7684\u8ddd\u79bb\u548c\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002\u5982\u679c\u53ea\u662f\u5728\u77ed\u8ddd\u79bb\u5185\u4f20\u8f93\u6570\u636e\uff0c\u5982\u5bb6\u5ead\u667a\u80fd\u7cfb\u7edf\uff0c\u5219\u5e94\u8be5\u4f7f\u7528RS232\uff0c\u56e0\u4e3a\u5b83\u7684\u6210\u672c\u66f4\u4f4e\uff0c\u8fde\u63a5\u66f4\u7b80\u5355\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u672c\u6587\u4ecb\u7ecd\u4e86Modbus\u534f\u8bae\u4f7f\u7528RS485\u8fd8\u662fRS232\u7684\u95ee\u9898\uff0c\u5e76\u4ecb\u7ecd\u4e86\u5b83\u4eec\u7684\u4e3b\u8981\u533a\u522b\u548c\u4f18\u52bf\uff0c\u4ee5\u53ca\u5982\u4f55\u6839\u636e\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684Modbus\u534f\u8bae\u5b9e\u73b0\u65b9\u5f0f\u3002<\/strong>\u603b\u4e4b\uff0cRS485\u7528\u4e8e\u5927\u8303\u56f4\u7684\u6570\u636e\u4f20\u8f93\uff0c\u800cRS232\u7528\u4e8e\u77ed\u8ddd\u79bb\u7684\u6570\u636e\u4f20\u8f93\uff0c\u5e94\u6839\u636e\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u534f\u8bae\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Modbus\u534f\u8bae\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\u7528\u4e8e\u8fde\u63a5\u5404\u79cd\u8bbe\u5907\uff0c\u4ee5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u548c\u63a7\u5236\u3002\u7531\u4e8eModbus\u534f\u8bae\u7684\u7075\u6d3b\u6027\u548c\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5b83\u5df2\u7ecf\u6210\u4e3a\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u6807\u51c6\u534f\u8bae\u3002<\/p>\n","protected":false},"author":1,"featured_media":4132,"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":[68],"class_list":["post-46750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-r-3"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/46750"}],"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=46750"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/46750\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=46750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=46750"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=46750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}