{"id":42335,"date":"2023-10-05T09:18:28","date_gmt":"2023-10-05T01:18:28","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=42335"},"modified":"2023-10-05T09:18:28","modified_gmt":"2023-10-05T01:18:28","slug":"myrqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/42335.html","title":{"rendered":"Modbus\u4e0eRS485\u533a\u522b"},"content":{"rendered":"

  Modbus\u548cRS485\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\uff0c\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u660e\u663e\u7684\u533a\u522b\u3002Modbus\u662f\u4e00\u79cd\u534a\u53cc\u5de5\u901a\u4fe1\u534f\u8bae\uff0c\u800cRS485\u5219\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u4f20\u8f93\u901f\u7387\u3001\u7ebf\u8def\u957f\u5ea6\u3001\u5b89\u5168\u6027\u7b49\u65b9\u9762\u90fd\u6709\u7740\u663e\u8457\u7684\u533a\u522b\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdModbus\u548cRS485\u7684\u4e0d\u540c\u4e4b\u5904\uff0c\u4ee5\u4fbf\u8bfb\u8005\u66f4\u597d\u5730\u4e86\u89e3\u8fd9\u4e24\u79cd\u7cfb\u7edf\u3002<\/p>\n

Modbus<\/h2>\n

  Modbus\u662f\u4e00\u79cd\u534a\u53cc\u5de5\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u7531Modicon\u516c\u53f8\u4e8e1979\u5e74\u5f00\u53d1\uff0c\u662f\u4e00\u79cd\u6807\u51c6\u7684\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\uff0c\u7528\u4e8e\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002Modbus\u534f\u8bae\u4f7f\u7528\u4e32\u884c\u63a5\u53e3\uff0c\u901a\u8fc7RS232\u3001RS485\u6216\u4ee5\u592a\u7f51\u8fdb\u884c\u901a\u4fe1\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002 Modbus\u534f\u8bae\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u4e0d\u540c\u7684\u5de5\u4e1a\u8bbe\u5907\uff0c\u4f8b\u5982PLC\u3001DCS\u3001RTU\u7b49\uff0c\u5e76\u53ef\u4ee5\u5b9e\u73b0\u73b0\u573a\u7f51\u7edc\u7684\u8fdc\u7a0b\u76d1\u63a7\u548c\u63a7\u5236\u3002<\/p>\n

  \u4f20\u8f93\u901f\u7387<\/h3>\n

  Modbus\u534f\u8bae\u7684\u4f20\u8f93\u901f\u7387\u4e3a115.2Kbps\uff0c\u8fd9\u662f\u4e00\u79cd\u76f8\u5bf9\u8f83\u4f4e\u7684\u901f\u7387\uff0c\u4f46\u662f\u5b83\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u9700\u6c42\u3002<\/p>\n

  \u7ebf\u8def\u957f\u5ea6<\/h3>\n

  Modbus\u534f\u8bae\u7684\u7ebf\u8def\u957f\u5ea6\u53ef\u4ee5\u8fbe\u52301200\u7c73\uff0c\u8fd9\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u957f\u7684\u8ddd\u79bb\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u9700\u6c42\u3002<\/p>\n

  \u5b89\u5168\u6027<\/h3>\n

  Modbus\u534f\u8bae\u6ca1\u6709\u81ea\u5e26\u5b89\u5168\u6027\uff0c\u56e0\u6b64\u5728\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u65f6\u9700\u8981\u91c7\u7528\u989d\u5916\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f8b\u5982\u91c7\u7528\u52a0\u5bc6\u6280\u672f\u6216\u4f7f\u7528\u9632\u706b\u5899\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n

RS485<\/h2>\n

  RS485\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u662f\u7531\u7f8e\u56fd\u56fd\u5bb6\u6807\u51c6\u4e0e\u6280\u672f\u7814\u7a76\u9662\uff08ANSI\uff09\u5236\u5b9a\u7684\u6807\u51c6\uff0c\u4e3b\u8981\u7528\u4e8e\u8fdc\u7a0b\u63a7\u5236\u3001\u76d1\u63a7\u548c\u6570\u636e\u91c7\u96c6\u7b49\u5e94\u7528\u573a\u666f\u3002RS485\u534f\u8bae\u4f7f\u7528\u4e32\u884c\u63a5\u53e3\uff0c\u53ef\u4ee5\u5b9e\u73b0\u591a\u70b9\u901a\u4fe1\uff0c\u5e76\u53ef\u4ee5\u652f\u6301\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

  \u4f20\u8f93\u901f\u7387<\/h3>\n

  RS485\u534f\u8bae\u7684\u4f20\u8f93\u901f\u7387\u53ef\u4ee5\u8fbe\u523010Mbps\uff0c\u662fModbus\u534f\u8bae\u7684\u6570\u5341\u500d\uff0c\u56e0\u6b64\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u9700\u6c42\u3002<\/p>\n

  \u7ebf\u8def\u957f\u5ea6<\/h3>\n

  RS485\u534f\u8bae\u7684\u7ebf\u8def\u957f\u5ea6\u53ef\u4ee5\u8fbe\u52304000\u7c73\uff0c\u662fModbus\u534f\u8bae\u7684\u4e09\u500d\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u7684\u9700\u6c42\u3002<\/p>\n

  \u5b89\u5168\u6027<\/h3>\n

  RS485\u534f\u8bae\u53ef\u4ee5\u4f7f\u7528\u52a0\u5bc6\u6280\u672f\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u5e76\u53ef\u4ee5\u4f7f\u7528\u9632\u706b\u5899\u6765\u9632\u6b62\u6570\u636e\u6cc4\u9732\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  Modbus\u548cRS485\u90fd\u662f\u5e38\u7528\u7684\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\uff0c\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u660e\u663e\u7684\u533a\u522b\uff0c\u4f8b\u5982\u4f20\u8f93\u901f\u7387\u3001\u7ebf\u8def\u957f\u5ea6\u3001\u5b89\u5168\u6027\u7b49\u3002<\/strong>Modbus\u662f\u4e00\u79cd\u534a\u53cc\u5de5\u901a\u4fe1\u534f\u8bae\uff0c\u800cRS485\u5219\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u4f20\u8f93\u901f\u7387\u3001\u7ebf\u8def\u957f\u5ea6\u3001\u5b89\u5168\u6027\u7b49\u65b9\u9762\u90fd\u6709\u7740\u663e\u8457\u7684\u533a\u522b\u3002\u56e0\u6b64\uff0c\u5728\u9009\u62e9\u63a7\u5236\u7cfb\u7edf\u65f6\uff0c\u5e94\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u6765\u9009\u62e9\u6700\u5408\u9002\u7684\u7cfb\u7edf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Modbus\u548cRS485\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\uff0c\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u660e\u663e\u7684\u533a\u522b\u3002Modbus\u662f\u4e00\u79cd\u534a\u53cc\u5de5\u901a\u4fe1\u534f\u8bae\uff0c\u800cRS485\u5219\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u4f20\u8f93\u901f\u7387\u3001\u7ebf\u8def\u957f\u5ea6\u3001<\/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":[61],"class_list":["post-42335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-r"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=42335"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42335\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=42335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=42335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=42335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}