{"id":41044,"date":"2023-10-03T01:45:20","date_gmt":"2023-10-02T17:45:20","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=41044"},"modified":"2023-10-03T01:45:20","modified_gmt":"2023-10-02T17:45:20","slug":"rrhdjr","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/41044.html","title":{"rendered":"RS485\/A485B\u5982\u4f55\u5bf9\u63a5RS232"},"content":{"rendered":"

  RS485\/A485B\u662f\u4e00\u79cd\u5e38\u7528\u7684\u901a\u4fe1\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u4f7fRS232\u4e0e\u5176\u4ed6\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u66f4\u52a0\u5bb9\u6613\u3002<\/strong>RS485\/A485B\u53ef\u4ee5\u4e0eRS232\u8fdb\u884c\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u5e76\u4e14\u5177\u6709\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3001\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdRS485\/A485B\u5982\u4f55\u5bf9\u63a5RS232\uff0c\u4ee5\u53ca\u5b83\u7684\u4f18\u52bf\u548c\u52a3\u52bf\u3002<\/p>\n

RS485\/A485B\u5982\u4f55\u5bf9\u63a5RS232<\/h2>\n

  RS485\/A485B\u548cRS232\u4e4b\u95f4\u7684\u8fde\u63a5\u662f\u901a\u8fc7\u4e00\u4e2a\u8fde\u63a5\u5668\u5b9e\u73b0\u7684\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u8fde\u63a5\u5668\u4f1a\u67099\u4e2a\u7aef\u53e3\uff0c\u5206\u522b\u7528\u4e8e\u8fde\u63a5RS232\u548cRS485\/A485B\u7684\u6570\u636e\u7ebf\u3002\u5982\u679c\u8981\u8fde\u63a5\u66f4\u591a\u7684\u8bbe\u5907\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u8fde\u63a5\u5668\u6765\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\uff0c\u4ee5\u5b9e\u73b0\u591a\u8def\u6570\u636e\u4f20\u8f93\u3002<\/p>\n

  \u5728\u8fde\u63a5RS485\/A485B\u548cRS232\u4e4b\u524d\uff0c\u9700\u8981\u5148\u786e\u5b9a\u597d\u8fde\u63a5\u5668\u7684\u7535\u6e90\u7535\u538b\uff0cRS232\u7684\u7535\u6e90\u7535\u538b\u4e00\u822c\u4e3a5V\uff0c\u800cRS485\/A485B\u7684\u7535\u6e90\u7535\u538b\u4e00\u822c\u4e3a3.3V\u62165V\u3002\u53e6\u5916\uff0c\u8fd8\u9700\u8981\u786e\u5b9aRS485\/A485B\u548cRS232\u4e4b\u95f4\u7684\u901a\u4fe1\u901f\u7387\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cRS485\/A485B\u7684\u901a\u4fe1\u901f\u7387\u8981\u6bd4RS232\u7684\u901a\u4fe1\u901f\u7387\u8981\u9ad8\u3002<\/p>\n

  \u5728\u8fde\u63a5\u5668\u4e0a\uff0cRS232\u7684\u7aef\u53e3\u4e00\u822c\u6709\u4e24\u79cd\uff1aTX\u548cRX\uff0c\u5176\u4e2dTX\u7528\u4e8e\u53d1\u9001\u6570\u636e\uff0cRX\u7528\u4e8e\u63a5\u6536\u6570\u636e\u3002\u800cRS485\/A485B\u7684\u7aef\u53e3\u4e00\u822c\u6709\u56db\u79cd\uff1aA\u3001B\u3001C\u3001D\uff0c\u5176\u4e2dA\u3001B\u7528\u4e8e\u53d1\u9001\u6570\u636e\uff0cC\u3001D\u7528\u4e8e\u63a5\u6536\u6570\u636e\u3002\u5728\u8fde\u63a5\u5668\u4e0a\uff0c\u5c06RS232\u7684TX\u7aef\u53e3\u8fde\u63a5\u5230RS485\/A485B\u7684A\u7aef\u53e3\uff0c\u5c06RS232\u7684RX\u7aef\u53e3\u8fde\u63a5\u5230RS485\/A485B\u7684C\u7aef\u53e3\uff0c\u5c06RS485\/A485B\u7684B\u7aef\u53e3\u8fde\u63a5\u5230RS232\u7684RX\u7aef\u53e3\uff0c\u5c06RS485\/A485B\u7684D\u7aef\u53e3\u8fde\u63a5\u5230RS232\u7684TX\u7aef\u53e3\uff0c\u5373\u53ef\u5b8c\u6210\u8fde\u63a5\u3002<\/p>\n

RS485\/A485B\u7684\u4f18\u52bf<\/h2>\n

  RS485\/A485B\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u5176\u4f20\u8f93\u901f\u7387\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d210Mbit\/s\u3002\u53e6\u5916\uff0cRS485\/A485B\u7684\u4f20\u8f93\u8ddd\u79bb\u4e5f\u6bd4RS232\u66f4\u8fdc\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0\u8ddd\u79bb\u4e3a1200\u7c73\u7684\u8fdc\u7a0b\u6570\u636e\u4f20\u8f93\u3002\u6b64\u5916\uff0cRS485\/A485B\u8fd8\u5177\u6709\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3001\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n

RS485\/A485B\u7684\u52a3\u52bf<\/h2>\n

  RS485\/A485B\u7684\u52a3\u52bf\u5728\u4e8e\u5b83\u6bd4RS232\u7684\u6210\u672c\u8981\u9ad8\uff0c\u56e0\u4e3a\u5b83\u9700\u8981\u4f7f\u7528\u7279\u6b8a\u7684\u8fde\u63a5\u5668\u548c\u7535\u7f06\uff0c\u800cRS232\u53ea\u9700\u8981\u4f7f\u7528\u666e\u901a\u7684\u7535\u7f06\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u3002\u6b64\u5916\uff0cRS485\/A485B\u8fd8\u9700\u8981\u4f7f\u7528\u66f4\u591a\u7684\u7535\u6e90\u7535\u538b\uff0c\u800cRS232\u53ea\u9700\u8981\u4f7f\u7528\u4e00\u79cd\u7535\u6e90\u7535\u538b\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  RS485\/A485B\u662f\u4e00\u79cd\u5e38\u7528\u7684\u901a\u4fe1\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u4f7fRS232\u4e0e\u5176\u4ed6\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u66f4\u52a0\u5bb9\u6613\u3002<\/strong>RS485\/A485B\u53ef\u4ee5\u4e0eRS232\u8fdb\u884c\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u5e76\u4e14\u5177\u6709\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3001\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002\u5b83\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u548c\u8fdc\u8ddd\u79bb\u6570\u636e\u4f20\u8f93\uff0c\u800c\u5b83\u7684\u52a3\u52bf\u5728\u4e8e\u6bd4RS232\u7684\u6210\u672c\u8981\u9ad8\uff0c\u4ee5\u53ca\u9700\u8981\u4f7f\u7528\u66f4\u591a\u7684\u7535\u6e90\u7535\u538b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

RS485\/A485B\u662f\u4e00\u79cd\u5e38\u7528\u7684\u901a\u4fe1\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u4f7fRS232\u4e0e\u5176\u4ed6\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u66f4\u52a0\u5bb9\u6613\u3002RS485\/A485B\u53ef\u4ee5\u4e0eRS232\u8fdb\u884c\u9ad8<\/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-41044","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\/41044","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=41044"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/41044\/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=41044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=41044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=41044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}