{"id":77938,"date":"2024-01-01T18:05:06","date_gmt":"2024-01-01T10:05:06","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=77938"},"modified":"2024-01-01T18:05:06","modified_gmt":"2024-01-01T10:05:06","slug":"rzcnxsjgs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/77938.html","title":{"rendered":"RS485\u652f\u6301\u54ea\u4e9b\u6570\u636e\u683c\u5f0f?"},"content":{"rendered":"<p>&emsp;&emsp;RS485\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u652f\u6301\u54ea\u4e9b\u6570\u636e\u683c\u5f0f\uff1f\u4eca\u5929\u6211\u4eec\u5c06\u4ecb\u7ecdRS485\u7684\u6570\u636e\u683c\u5f0f\u4ee5\u53ca\u5176\u5e94\u7528\u3002<\/p>\n<h2 style=\"text-align: center;\">RS485\u6570\u636e\u683c\u5f0f\u6982\u8ff0<\/h2>\n<p>&emsp;&emsp;RS485\u652f\u6301\u7684\u6570\u636e\u683c\u5f0f\u5305\u62ecASCII\u7801\u3001Modbus RTU\u3001Modbus ASCII\u7b49\u3002ASCII\u7801\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u5b57\u7b26\u7f16\u7801\u65b9\u5f0f\uff0cModbus RTU\u548cModbus ASCII\u5219\u662f\u7528\u4e8e\u4e32\u884c\u901a\u4fe1\u7684\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u5efa\u7b51\u81ea\u52a8\u5316\u7b49\u9886\u57df\u6709\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n<h3>&emsp;&emsp;ASCII\u7801<\/h3>\n<p>&emsp;&emsp;ASCII\uff08American Standard Code for Information Interchange\uff09\u7801\u662f\u4e00\u79cd\u7528\u4e8e\u5b57\u7b26\u7f16\u7801\u7684\u6807\u51c6\uff0c\u5b83\u4f7f\u7528\u4e03\u4f4d\u6216\u516b\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\u6765\u8868\u793a\u5b57\u7b26\u548c\u63a7\u5236\u5b57\u7b26\u3002\u5728RS485\u901a\u4fe1\u4e2d\uff0cASCII\u7801\u5e38\u7528\u4e8e\u4eba\u673a\u754c\u9762\u3001\u6587\u672c\u6587\u4ef6\u4f20\u8f93\u7b49\u5e94\u7528\u3002<\/p>\n<h3>&emsp;&emsp;Modbus RTU<\/h3>\n<p>&emsp;&emsp;Modbus RTU\u662f\u4e00\u79cd\u57fa\u4e8e\u4e8c\u8fdb\u5236\u7f16\u7801\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4f7f\u7528RS485\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002Modbus <a href=\"https:\/\/www.techphant.cn\/tag\/rtu\" target=\"_blank\" rel=\"noopener\">RTU<\/a>\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u7ebf\u5708\uff08Coils\uff09\u3001\u79bb\u6563\u8f93\u5165\uff08Discrete Inputs\uff09\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\uff08Holding Registers\uff09\u548c\u8f93\u5165\u5bc4\u5b58\u5668\uff08Input Registers\uff09\u7b49\u3002<\/p>\n<h3>&emsp;&emsp;Modbus ASCII<\/h3>\n<p>&emsp;&emsp;Modbus ASCII\u662f\u53e6\u4e00\u79cd\u57fa\u4e8e\u6587\u672c\u7f16\u7801\u7684Modbus\u534f\u8bae\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7RS485\u8fdb\u884c\u901a\u4fe1\u3002\u4e0eModbus RTU\u4e0d\u540c\u7684\u662f\uff0cModbus ASCII\u4f7f\u7528\u53ef\u6253\u5370\u5b57\u7b26\u4f5c\u4e3a\u8d77\u59cb\u3001\u7ec8\u6b62\u7b26\uff0c\u4fbf\u4e8e\u4eba\u7c7b\u9605\u8bfb\u548c\u8c03\u8bd5\u3002<\/p>\n<h2 style=\"text-align: center;\">RS485\u6570\u636e\u683c\u5f0f\u7684\u5e94\u7528<\/h2>\n<p>&emsp;&emsp;RS485\u7684\u6570\u636e\u683c\u5f0f\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u5efa\u7b51\u81ea\u52a8\u5316\u3001<a href=\"https:\/\/www.techphant.cn\/tag\/znjj\" target=\"_blank\" rel=\"noopener\">\u667a\u80fd\u5bb6\u5c45<\/a>\u7b49\u9886\u57df\u3002\u4e0d\u540c\u7684\u6570\u636e\u683c\u5f0f\u6ee1\u8db3\u4e86\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u901a\u4fe1\u9700\u6c42\uff0c\u4e3a\u5404\u79cd\u8bbe\u5907\u7684\u8fde\u63a5\u548c\u6570\u636e\u4ea4\u6362\u63d0\u4f9b\u4e86\u4fbf\u5229\u3002<\/p>\n<h3>&emsp;&emsp;\u5de5\u4e1a\u81ea\u52a8\u5316<\/h3>\n<p>&emsp;&emsp;\u5728\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0c\u5e38\u7528\u7684\u6570\u636e\u683c\u5f0f\u5305\u62ecModbus RTU\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0PLC\u3001\u4f20\u611f\u5668\u3001\u6267\u884c\u5668\u7b49\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\uff0c\u7528\u4e8e\u5b9e\u73b0\u81ea\u52a8\u5316\u63a7\u5236\u3001\u76d1\u6d4b\u548c\u8c03\u8282\u3002<\/p>\n<h3>&emsp;&emsp;\u5efa\u7b51\u81ea\u52a8\u5316<\/h3>\n<p>&emsp;&emsp;\u5728\u5efa\u7b51\u7269\u7ba1\u7406\u7cfb\u7edf\uff08BMS\uff09\u4e2d\uff0c\u91c7\u7528RS485\u7684ASCII\u7801\u548cModbus\u534f\u8bae\u8fdb\u884c\u6570\u636e\u901a\u4fe1\uff0c\u5b9e\u73b0\u5bf9\u7167\u660e\u3001\u7a7a\u8c03\u3001\u5b89\u9632\u7b49\u8bbe\u5907\u7684\u8fdc\u7a0b\u76d1\u63a7\u548c\u63a7\u5236\uff0c\u63d0\u9ad8\u4e86\u5efa\u7b51\u80fd\u6e90\u5229\u7528\u6548\u7387\u548c\u8212\u9002\u5ea6\u3002<\/p>\n<h2 style=\"text-align: center;\">\u603b\u7ed3<\/h2>\n<p>&emsp;&emsp;<strong>RS485\u652f\u6301\u591a\u79cd\u6570\u636e\u683c\u5f0f\uff0c\u5305\u62ecASCII\u7801\u3001Modbus RTU\u548c<a href=\"https:\/\/www.techphant.cn\/tag\/m-3\" target=\"_blank\" rel=\"noopener\">Modbus<\/a> ASCII\u3002<\/strong>\u8fd9\u4e9b\u6570\u636e\u683c\u5f0f\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u5efa\u7b51\u81ea\u52a8\u5316\u7b49\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u4e3a\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u6570\u636e\u4ea4\u6362\u63d0\u4f9b\u4e86\u4fbf\u5229\u3002\u5177\u4f53\u573a\u666f\u4e0b\u7684\u9009\u62e9\u9700\u6839\u636e\u9700\u6c42\u548c\u8bbe\u5907\u517c\u5bb9\u6027\u8fdb\u884c\u5408\u7406\u9009\u53d6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RS485\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u652f\u6301\u54ea\u4e9b\u6570\u636e\u683c\u5f0f\uff1f\u672c\u6587\u5c06\u4ecb\u7ecdRS485\u7684\u6570\u636e\u683c\u5f0f\u4ee5\u53ca\u5176\u5e94\u7528\u3002RS485\u6570\u636e\u683c\u5f0f\u6982\u8ff0RS485\u652f\u6301\u7684\u6570\u636e\u683c\u5f0f\u5305\u62ecASCII\u7801\u3001<\/p>\n","protected":false},"author":1,"featured_media":64183,"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-77938","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\/77938","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=77938"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/77938\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/64183"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=77938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=77938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=77938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}