{"id":40711,"date":"2023-10-02T19:02:41","date_gmt":"2023-10-02T11:02:41","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=40711"},"modified":"2024-04-29T10:55:57","modified_gmt":"2024-04-29T02:55:57","slug":"rsmnxhm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/40711.html","title":{"rendered":"RS485\u662f\u6a21\u62df\u4fe1\u53f7\u5417\uff1f"},"content":{"rendered":"

  RS485\u662f\u4e00\u79cd\u6a21\u62df\u4fe1\u53f7\uff0c\u5b83\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u591a\u4e2a\u8282\u70b9\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u8ddd\u79bb\u8f83\u8fdc\u7684\u8fde\u63a5\uff0c\u56e0\u6b64\u88ab\u5e7f\u6cdb\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u3001\u81ea\u52a8\u5316\u7cfb\u7edf\u3001\u6d4b\u8bd5\u4eea\u5668\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u7b49\u5e94\u7528\u9886\u57df\u3002\u672c\u6587\u5c06\u8ba8\u8bbaRS485\u662f\u6a21\u62df\u4fe1\u53f7\u7684\u7279\u70b9\uff0c\u4ee5\u53ca\u5b83\u4e0e\u5176\u4ed6\u6a21\u62df\u4fe1\u53f7\u7684\u6bd4\u8f83\uff0c\u4ee5\u53ca\u5b83\u5728\u5f53\u4eca\u7684\u5e94\u7528\u3002<\/p>\n

RS485\u7684\u7279\u70b9<\/h2>\n

  \u4fe1\u53f7\u5c5e\u6027<\/h3>\n

  RS485\u7684\u4fe1\u53f7\u5c5e\u6027\u4e3b\u8981\u6709\u4e09\u4e2a\uff1a\u9891\u7387\u3001\u5e45\u5ea6\u548c\u76f8\u4f4d\u3002RS485\u7684\u9891\u7387\u4e00\u822c\u572850Hz~500kHz\u4e4b\u95f4\uff0c\u5e45\u5ea6\u4e00\u822c\u57282.5V~5V\u4e4b\u95f4\uff0c\u76f8\u4f4d\u53ef\u4ee5\u662f\u6b63\u5f26\u3001\u65b9\u6ce2\u3001\u4e09\u89d2\u6ce2\u7b49\u3002\u8fd9\u4e9b\u7279\u6027\u4f7fRS485\u53ef\u4ee5\u6ee1\u8db3\u5404\u79cd\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\uff0c\u4ece\u800c\u4f7f\u5176\u6210\u4e3a\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u6a21\u62df\u4fe1\u53f7\u3002<\/p>\n

  \u4f20\u8f93\u7279\u6027<\/h3>\n

  RS485\u5177\u6709\u4f18\u8d8a\u7684\u4f20\u8f93\u7279\u6027\uff0c\u53ef\u4ee5\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u6700\u957f\u53ef\u8fbe1200\u7c73\uff0c\u800c\u4e14\u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u5236\u7535\u78c1\u5e72\u6270\uff0c\u4ece\u800c\u786e\u4fdd\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\u3002\u6b64\u5916\uff0cRS485\u8fd8\u5177\u6709\u826f\u597d\u7684\u4fe1\u53f7\u4f20\u8f93\u7387\uff0c\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d210Mbit\/s\u3002<\/p>\n

  \u5b89\u5168\u6027<\/h3>\n

  RS485\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u5176\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u5ea6\u52a0\u5bc6\uff0c\u4ece\u800c\u6709\u6548\u9632\u6b62\u4fe1\u606f\u6cc4\u9732\u3002\u540c\u65f6\uff0cRS485\u8fd8\u5177\u6709\u81ea\u52a8\u68c0\u6d4b\u548c\u81ea\u52a8\u7ea0\u9519\u529f\u80fd\uff0c\u53ef\u4ee5\u6709\u6548\u4fdd\u8bc1\u4fe1\u53f7\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n

RS485\u4e0e\u5176\u4ed6\u6a21\u62df\u4fe1\u53f7\u7684\u6bd4\u8f83<\/h2>\n

  RS232<\/h3>\n

  RS232\u548cRS485\u90fd\u662f\u6a21\u62df\u4fe1\u53f7\uff0c\u4f46\u5b83\u4eec\u5728\u4f20\u8f93\u8ddd\u79bb\u3001\u4fe1\u53f7\u5e45\u5ea6\u3001\u5b89\u5168\u6027\u7b49\u65b9\u9762\u5b58\u5728\u660e\u663e\u5dee\u5f02\u3002RS232\u7684\u4f20\u8f93\u8ddd\u79bb\u6700\u957f\u53ea\u670950\u7c73\uff0c\u800cRS485\u53ef\u4ee5\u8fbe\u52301200\u7c73\uff1bRS232\u7684\u4fe1\u53f7\u5e45\u5ea6\u6700\u9ad8\u53ea\u670912V\uff0c\u800cRS485\u7684\u5e45\u5ea6\u53ef\u4ee5\u8fbe\u52305V\uff1bRS232\u7684\u5b89\u5168\u6027\u8f83\u4f4e\uff0c\u800cRS485\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\u3002<\/p>\n

  RS422<\/h3>\n

  RS422\u548cRS485\u90fd\u662f\u6a21\u62df\u4fe1\u53f7\uff0c\u4f46\u5b83\u4eec\u5728\u4f20\u8f93\u8ddd\u79bb\u3001\u4fe1\u53f7\u5e45\u5ea6\u3001\u5b89\u5168\u6027\u7b49\u65b9\u9762\u5b58\u5728\u660e\u663e\u5dee\u5f02\u3002RS422\u7684\u4f20\u8f93\u8ddd\u79bb\u6700\u957f\u53ea\u670950\u7c73\uff0c\u800cRS485\u53ef\u4ee5\u8fbe\u52301200\u7c73\uff1bRS422\u7684\u4fe1\u53f7\u5e45\u5ea6\u6700\u9ad8\u53ea\u670912V\uff0c\u800cRS485\u7684\u5e45\u5ea6\u53ef\u4ee5\u8fbe\u52305V\uff1bRS422\u7684\u5b89\u5168\u6027\u8f83\u4f4e\uff0c\u800cRS485\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\u3002<\/p>\n

RS485\u5728\u5f53\u4eca\u7684\u5e94\u7528<\/h2>\n

  RS485\u5728\u5f53\u4eca\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5b83\u53ef\u4ee5\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u3001\u81ea\u52a8\u5316\u7cfb\u7edf\u3001\u6d4b\u8bd5\u4eea\u5668\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u7b49\u5e94\u7528\u9886\u57df\u3002\u5b83\u53ef\u4ee5\u6ee1\u8db3\u5404\u79cd\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u5236\u7535\u78c1\u5e72\u6270\uff0c\u4ece\u800c\u786e\u4fdd\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\uff0c\u800c\u4e14\u8fd8\u5177\u6709\u826f\u597d\u7684\u4fe1\u53f7\u4f20\u8f93\u7387\uff0c\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d210Mbit\/s\u3002\u6b64\u5916\uff0cRS485\u8fd8\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u4fe1\u606f\u6cc4\u9732\u3002<\/p>\n

  \u603b\u4e4b\uff0cRS485\u662f\u4e00\u79cd\u6a21\u62df\u4fe1\u53f7\uff0c\u5b83\u5177\u6709\u4f18\u8d8a\u7684\u4f20\u8f93\u7279\u6027\uff0c\u53ef\u4ee5\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u800c\u4e14\u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u5236\u7535\u78c1\u5e72\u6270\uff0c\u4ece\u800c\u786e\u4fdd\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\uff0c\u800c\u4e14\u8fd8\u5177\u6709\u826f\u597d\u7684\u4fe1\u53f7\u4f20\u8f93\u7387\uff0c\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d210Mbit\/s\uff0c\u540c\u65f6\u8fd8\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u4fe1\u606f\u6cc4\u9732\u3002<\/strong>\u56e0\u6b64\uff0cRS485\u5728\u5f53\u4eca\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5b83\u53ef\u4ee5\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u3001\u81ea\u52a8\u5316\u7cfb\u7edf\u3001\u6d4b\u8bd5\u4eea\u5668\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u7b49\u5e94\u7528\u9886\u57df\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

RS485\u662f\u4e00\u79cd\u6a21\u62df\u4fe1\u53f7\uff0c\u5b83\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u591a\u4e2a\u8282\u70b9\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u8ddd\u79bb\u8f83\u8fdc\u7684\u8fde\u63a5\uff0c\u56e0\u6b64\u88ab\u5e7f\u6cdb\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u3001\u81ea\u52a8\u5316\u7cfb\u7edf\u3001\u6d4b\u8bd5\u4eea\u5668\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u7b49\u5e94\u7528<\/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":[61,411],"class_list":["post-40711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-r","tag-analogsignal"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/40711","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=40711"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/40711\/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=40711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=40711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=40711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}