{"id":69230,"date":"2023-12-24T04:27:15","date_gmt":"2023-12-23T20:27:15","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=69230"},"modified":"2023-12-24T04:27:15","modified_gmt":"2023-12-23T20:27:15","slug":"rhrdqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/69230.html","title":{"rendered":"RS232\u548cRS485\u7684\u533a\u522b"},"content":{"rendered":"

  RS232\u548cRS485\u662f\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u63a7\u5236\u3001\u6570\u636e\u91c7\u96c6\u548c\u901a\u4fe1\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e24\u79cd\u6807\u51c6\u7684\u533a\u522b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u7684\u7279\u70b9\u548c\u9002\u7528\u8303\u56f4\u3002<\/p>\n

RS232\u4e0eRS485\u7684\u57fa\u672c\u4ecb\u7ecd<\/h2>\n

  RS232\u548cRS485\u90fd\u662f\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u7528\u4e8e\u5728\u6570\u636e\u901a\u4fe1\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002RS232\u662f\u6700\u65e9\u51fa\u73b0\u7684\u6807\u51c6\u4e4b\u4e00\uff0c\u901a\u5e38\u7528\u4e8e\u8fde\u63a5\u4e2a\u4eba\u7535\u8111\u548c\u5468\u8fb9\u8bbe\u5907\uff0c\u4f8b\u5982\u8c03\u5236\u89e3\u8c03<\/a>\u5668\u3001\u6253\u5370\u673a\u7b49\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cRS485\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u6807\u51c6\uff0c\u53ef\u7528\u4e8e\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\u6784\u5efa\u5c40\u90e8\u7f51\u7edc\uff0c\u5e38\u89c1\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u3002<\/p>\n

  RS232\u7684\u7279\u70b9<\/h3>\n

  RS232\u662f\u5355\u5411\u901a\u4fe1\u63a5\u53e3\uff0c\u53ea\u80fd\u5b9e\u73b0\u5355\u4e2a\u53d1\u9001\u5668\u548c\u5355\u4e2a\u63a5\u6536\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5b83\u91c7\u7528\u5f02\u6b65\u901a\u4fe1\u65b9\u5f0f\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u901a\u5e38\u4f7f\u7528DB9\u63a5\u53e3\u8fde\u63a5\u8bbe\u5907\u3002<\/p>\n

  RS485<\/a>\u7684\u7279\u70b9<\/h3>\n

  \u4e0eRS232\u4e0d\u540c\uff0cRS485\u652f\u6301\u591a\u70b9\u901a\u4fe1\uff0c\u53ef\u4ee5\u8fde\u63a5\u591a\u4e2a\u53d1\u9001\u5668\u548c\u63a5\u6536\u5668\uff0c\u9002\u7528\u4e8e\u6784\u5efa\u591a\u8282\u70b9\u7684\u901a\u4fe1\u7f51\u7edc\u3002\u5b83\u91c7\u7528\u5168\u53cc\u5de5<\/a>\u901a\u4fe1\u65b9\u5f0f\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u901a\u5e38\u91c7\u7528\u4e24\u7ebf\u5236\u6216\u56db\u7ebf\u5236\u8fde\u63a5\u3002<\/p>\n

RS232\u4e0eRS485\u7684\u533a\u522b<\/h2>\n

  \u7535\u6c14\u7279\u6027<\/h3>\n

  RS232\u4f7f\u7528\u5355\u7aef\u4f20\u8f93\uff0c\u5373\u4f7f\u7528\u4e00\u5bf9\u4fe1\u53f7\u5f15\u7ebf\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u4fe1\u53f7\u8303\u56f4\u5728-3V\u5230+3V\u4e4b\u95f4\u3002\u800cRS485\u91c7\u7528\u5dee\u5206\u4f20\u8f93\uff0c\u5373\u540c\u65f6\u4f7f\u7528\u4e00\u5bf9\u6b63\u8d1f\u4e24\u4e2a\u4fe1\u53f7\u5f15\u7ebf\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u80fd\u591f\u5728\u7535\u6c14\u5e72\u6270\u73af\u5883\u4e0b\u63d0\u4f9b\u66f4\u597d\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n

  \u901a\u4fe1\u8ddd\u79bb<\/h3>\n

  \u7531\u4e8e\u5176\u7535\u6c14\u7279\u6027\u7684\u4e0d\u540c\uff0cRS232\u901a\u4fe1\u8ddd\u79bb\u4e00\u822c\u9650\u5236\u572815\u7c73\u5de6\u53f3\u3002\u800cRS485\u652f\u6301\u957f\u8fbe1200\u7c73\u7684\u901a\u4fe1\u8ddd\u79bb\uff0c\u4f7f\u5f97\u5b83\u66f4\u9002\u5408\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\u8de8\u8d8a\u8f83\u957f\u8ddd\u79bb\u7684\u901a\u4fe1\u9700\u6c42\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u867d\u7136RS232\u548cRS485\u90fd\u662f\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u7684\u6807\u51c6\uff0c\u4f46\u5b83\u4eec\u5728\u7535\u6c14\u7279\u6027\u3001\u901a\u4fe1\u8ddd\u79a7\u548c\u5e94\u7528\u9886\u57df\u7b49\u65b9\u9762\u6709\u7740\u660e\u663e\u7684\u4e0d\u540c\u3002<\/strong>\u5728\u9009\u62e9\u4f7f\u7528\u54ea\u79cd\u6807\u51c6\u65f6\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u901a\u4fe1\u9700\u6c42\u548c\u73af\u5883\u6765\u8fdb\u884c\u7efc\u5408\u8003\u8651\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u8bfb\u8005\u6709\u6240\u5e2e\u52a9\uff0c\u8ba9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e24\u79cd\u91cd\u8981\u7684\u901a\u4fe1\u6807\u51c6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

RS232\u548cRS485\u662f\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u63a7\u5236\u3001\u6570\u636e\u91c7\u96c6\u548c\u901a\u4fe1\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e24\u79cd\u6807\u51c6\u7684\u533a\u522b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u7684\u7279\u70b9\u548c\u9002\u7528\u8303\u56f4\u3002R<\/p>\n","protected":false},"author":1,"featured_media":64231,"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-69230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-r-3"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/69230","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=69230"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/69230\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/64231"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=69230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=69230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=69230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}