{"id":45486,"date":"2023-10-02T11:25:25","date_gmt":"2023-10-02T03:25:25","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=45486"},"modified":"2023-10-02T11:25:25","modified_gmt":"2023-10-02T03:25:25","slug":"rckcfdyds","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/45486.html","title":{"rendered":"RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u591a\u5c11\uff1f"},"content":{"rendered":"

  RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u662f\u6307RS485\u4e32\u53e3\u7ebf\u8def\u4e2d\u7684\u7535\u538b\u5dee\u5f02\uff0c\u5b83\u662f\u901a\u4fe1\u6027\u80fd\u7684\u91cd\u8981\u53c2\u6570\uff0c\u4e5f\u662f\u786e\u5b9a\u7ebf\u8def\u566a\u58f0\u5bf9\u901a\u4fe1\u7684\u5f71\u54cd\u7a0b\u5ea6\u7684\u6838\u5fc3\u53c2\u6570\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecdRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u7684\u8ba1\u7b97\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u5dee\u5206\u7535\u538b\u3002<\/p>\n

RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h2>\n

  RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u7684\u8ba1\u7b97\u65b9\u6cd5\u4e3b\u8981\u6709\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u6309\u7167\u7ebf\u8def\u957f\u5ea6\u548c\u7ebf\u8def\u963b\u6297\u6765\u8ba1\u7b97\uff0c\u53e6\u4e00\u79cd\u662f\u6309\u7167\u7ebf\u8def\u4e2d\u7684\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u7684\u7535\u538b\u964d\u6765\u8ba1\u7b97\u3002<\/p>\n

  \u6309\u7167\u7ebf\u8def\u957f\u5ea6\u548c\u7ebf\u8def\u963b\u6297\u8ba1\u7b97<\/h3>\n

  \u6839\u636e\u7ebf\u8def\u7684\u957f\u5ea6\u548c\u963b\u6297\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u51faRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff1a<\/p>\n

  Vd = Vcc-R*I<\/p>\n

  \u5176\u4e2d\uff0cVd\u4e3aRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff1bVcc\u4e3a\u7ebf\u8def\u4f9b\u7535\u7535\u538b\uff1bR\u4e3a\u7ebf\u8def\u963b\u6297\uff1bI\u4e3a\u7ebf\u8def\u7535\u6d41\u3002<\/p>\n

  \u6309\u7167\u7ebf\u8def\u4e2d\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u7684\u7535\u538b\u964d\u8ba1\u7b97<\/h3>\n

  \u6839\u636e\u7ebf\u8def\u4e2d\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u7684\u7535\u538b\u964d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u51faRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff1a<\/p>\n

  Vd = Vr-Vt<\/p>\n

  \u5176\u4e2d\uff0cVd\u4e3aRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff1bVr\u4e3a\u7ebf\u8def\u63a5\u6536\u673a\u7684\u63a5\u6536\u7535\u538b\uff1bVt\u4e3a\u7ebf\u8def\u53d1\u5c04\u673a\u7684\u53d1\u5c04\u7535\u538b\u3002<\/p>\n

\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u5dee\u5206\u7535\u538b<\/h2>\n

  \u5e94\u7528\u573a\u666f1\uff1a\u77ed\u8ddd\u79bb\u4f20\u8f93<\/h3>\n

  \u5982\u679c\u662f\u77ed\u8ddd\u79bb\u4f20\u8f93\uff0c\u4e00\u822c\u4e0d\u9700\u8981\u8003\u8651\u7ebf\u8def\u963b\u6297\uff0c\u53ef\u4ee5\u6839\u636e\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u7684\u7535\u538b\u964d\u6765\u8ba1\u7b97RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u77ed\u8ddd\u79bb\u4f20\u8f93\u65f6\uff0c\u63a5\u6536\u673a\u7684\u63a5\u6536\u7535\u538b\u548c\u53d1\u5c04\u673a\u7684\u53d1\u5c04\u7535\u538b\u5e94\u8be5\u5927\u4e8e3V\uff0c\u56e0\u6b64RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u4e5f\u5e94\u8be5\u5927\u4e8e3V\u3002<\/p>\n

  \u5e94\u7528\u573a\u666f2\uff1a\u957f\u8ddd\u79bb\u4f20\u8f93<\/h3>\n

  \u5982\u679c\u662f\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u4e00\u822c\u5e94\u8be5\u6839\u636e\u7ebf\u8def\u957f\u5ea6\u548c\u7ebf\u8def\u963b\u6297\u6765\u8ba1\u7b97RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff0c\u4ee5\u786e\u4fdd\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u957f\u8ddd\u79bb\u4f20\u8f93\u65f6\uff0cRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u5e94\u8be5\u5927\u4e8e10V\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u662fRS485\u4e32\u53e3\u7ebf\u8def\u4e2d\u7684\u91cd\u8981\u53c2\u6570\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u786e\u5b9a\u7ebf\u8def\u566a\u58f0\u5bf9\u901a\u4fe1\u7684\u5f71\u54cd\u7a0b\u5ea6\u3002<\/strong>RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u7684\u8ba1\u7b97\u65b9\u6cd5\u4e3b\u8981\u6709\u4e24\u79cd\uff1a\u6309\u7167\u7ebf\u8def\u957f\u5ea6\u548c\u7ebf\u8def\u963b\u6297\u6765\u8ba1\u7b97\uff0c\u4ee5\u53ca\u6309\u7167\u7ebf\u8def\u4e2d\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u7684\u7535\u538b\u964d\u6765\u8ba1\u7b97\u3002\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\uff0c\u4ee5\u4fdd\u8bc1\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

RS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u662f\u6307RS485\u4e32\u53e3\u7ebf\u8def\u4e2d\u7684\u7535\u538b\u5dee\u5f02\uff0c\u5b83\u662f\u901a\u4fe1\u6027\u80fd\u7684\u91cd\u8981\u53c2\u6570\uff0c\u4e5f\u662f\u786e\u5b9a\u7ebf\u8def\u566a\u58f0\u5bf9\u901a\u4fe1\u7684\u5f71\u54cd\u7a0b\u5ea6\u7684\u6838\u5fc3\u53c2\u6570\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecdRS485\u4e32\u53e3\u5dee\u5206\u7535\u538b\u7684\u8ba1<\/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-45486","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\/45486","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=45486"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/45486\/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=45486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=45486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=45486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}