{"id":3109,"date":"2020-06-18T06:27:14","date_gmt":"2020-06-18T06:27:14","guid":{"rendered":""},"modified":"2020-06-18T14:27:35","modified_gmt":"2020-06-18T06:27:35","slug":"rs232%e5%92%8crs485%e6%8e%a5%e5%8f%a3%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab+%e4%ba%94%e5%a4%a7%e7%bb%b4%e5%ba%a6%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=3109","title":{"rendered":"RS232\u548cRS485\u63a5\u53e3\u6709\u4ec0\u4e48\u533a\u522b \u4e94\u5927\u7ef4\u5ea6\u5206\u6790"},"content":{"rendered":"

\n\tRS<\/u>232\u4e0eRS485\u4e00\u76f4\u662f\u5f31\u7535\u5e38\u89c1\u7684\u63a5\u53e3<\/u>\uff0c\u56e0\u4e3a\u63a5\u53e3\u5f88\u7c7b\u4f3c\u5f88\u591a\u4eba\u90fd\u4e0d\u77e5\u9053\u4ed6\u4eec\u4e4b\u524d\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u6240\u4ee5\u4eca\u5929\u5c31\u8ba9\u6210\u90fd\u4ebf\u4f70\u7279\u7535\u5b50\u79d1\u6280\u6709\u9650\u516c\u53f8\u7684\u5c0f\u7f16\u6765\u4e3a\u6211\u4eec\u8bb2\u89e3\u4e00\u4e0b\u3002<\/p>\n

\n\t\u4e00\u3001\u63a5\u53e3\u7684\u7269\u7406\u7ed3\u6784<\/p>\n

\n\t <\/div>\n

\n\t1\u3001RS232\u63a5\u53e3\uff1aRS232\u662f\u8ba1\u7b97\u673a<\/u>\u5e38\u7528\u7684\u901a\u8baf\u63a5\u53e3\uff0c\u901a\u5e38RS232\u63a5\u53e3\u662f\u4ee59\u4e2a\u5f15\u811a\uff08DB-9\uff09\u6216\u8005\u662f25\u4e2a\u5f15\u811a\uff08DB-25\uff09\u7684\u5f62\u6001\u51fa\u73b0\uff0c\u4e00\u822c\u7684\u4e2a\u4eba\u8ba1\u7b97\u673a\u4e0a\u90fd\u4f1a\u6709\u4e24\u7ec4RS232\u63a5\u53e3\uff0c\u5206\u522b\u662fCOM1\u548cCOM2.<\/span><\/p>\n

\n\t\u8fde\u63a5\u5668<\/u>\u4f7f\u7528\u7684\u578b\u53f7\u4e3aDB-25\u768425\u4e2a\u5f15\u811a\u7684\u63d2\u5ea7\u5934\u3002\u4e00\u4e9b\u8bbe\u5907\u4e0ePC\u673a\u94fe\u63a5\u7684RS232\u63a5\u53e3\uff0c\u56e0\u4e3a\u4e0d\u4f7f\u7528\u5bf9\u65b9\u7684\u4f20\u9001\u63a7\u5236\u4fe1\u53f7\uff0c\u53ea\u9700\u8981\u4e09\u6761\u63a5\u53e3\u7ebf\uff0c\u5373“\u53d1\u9001\u6570\u636e”\u3001“\u63a5\u53d7\u6570\u636e”\u548c“\u4fe1\u53f7\u5730”\u3002\u6240\u4ee5DB-9\u76849\u4e2a\u5f15\u811a\u7684\u63d2\u5934\u5ea7\uff0c\u4f20\u8f93\u7ebf\u91c7\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u3002<\/p>\n

\n\t<\/p>\n

\n\t2\u3001RS485\u63a5\u53e3\uff1aRS485\u6ca1\u6709\u5177\u4f53\u7684\u7269\u7406\u5f62\u72b6\uff0c\u6839\u636e\u5de5\u7a0b\u7684\u5b9e\u9645\u60c5\u51b5\u6765\u91c7\u7528\u63a5\u53e3\u7684\u5f62\u72b6\u3002<\/span><\/p>\n

\n\t\u4e8c\u3001\u63a5\u53e3\u7684\u7535\u5b50\u7279\u6027<\/p>\n

\n\t1\u3001RS232\uff1a\u4f20\u8f93\u7535\u5e73\u4fe1\u53f7\u3002\u63a5\u53e3\u7684\u4fe1\u53f7\u7535\u5e73\u503c\u8f83\u9ad8(\u4fe1\u53f7“1”\u4e3a“-3V\u81f3-15V”,\u4fe1\u53f7“0”\u4e3a“3\u81f315V”)\uff0c\u6613\u635f\u574f\u63a5\u53e3\u7535\u8def<\/u>\u7684\u82af\u7247\uff0c\u53c8\u56e0\u4e3a\u4e0eTTL\u7535\u5e73(0~“<0.8v”,1~“>2.0V”)\u4e0d\u517c\u5bb9\u6545\u9700\u4f7f\u7528\u7535\u5e73\u8f6c\u6362\u7535\u8def\u65b9\u80fd\u4e0eTTL\u7535\u8def\u8fde\u63a5\u3002\u53e6\u5916\u6297\u5e72\u6270\u80fd\u529b\u5dee\u3002<\/span><\/p>\n

\n\t2\u3001RS485\uff1a\u4f20\u8f93\u5dee\u5206\u4fe1\u53f7\u3002\u903b\u8f91“1”\u4ee5\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a+\uff082—6\uff09 V\u8868\u793a\uff1b\u903b\u8f91“0”\u4ee5\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a-\uff082—6\uff09V\u8868\u793a\u3002\u63a5\u53e3\u4fe1\u53f7\u7535\u5e73\u6bd4RS-232\u964d\u4f4e\u4e86\uff0c\u5c31\u4e0d\u6613\u635f\u574f\u63a5\u53e3\u7535\u8def\u7684\u82af\u7247\uff0c\u4e14\u8be5\u7535\u5e73\u4e0eTTL\u7535\u5e73\u517c\u5bb9\uff0c\u53ef\u65b9\u4fbf\u4e0eTTL\u7535\u8def\u8fde\u63a5\u3002<\/span><\/p>\n

\n\t\u4e09\u3001\u901a\u8baf\u8ddd\u79bb\u957f\u77ed<\/p>\n

\n\t1\u3001RS232\uff1aRS232\u4f20\u8f93\u8ddd\u79bb\u6709\u9650\uff0c\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u6807\u51c6\u503c\u4e3a15\u7c73\uff0c\u4e14\u53ea\u80fd\u70b9\u5bf9\u70b9\u901a\u8baf\uff0c\u6700\u5927\u4f20\u8f93\u901f\u7387\u6700\u5927\u4e3a20kB\/s\u3002<\/span><\/p>\n

\n\t2\u3001RS485\uff1aRS485\u6700\u5927\u65e0\u7ebf\u4f20\u8f93\u8ddd\u79bb\u4e3a1200\u7c73\u3002\u6700\u5927\u4f20\u8f93\u901f\u7387\u4e3a10Mbps\uff0c\u5728100Kb\/S\u7684\u4f20\u8f93\u901f\u7387\u4e0b\uff0c\u624d\u53ef\u4ee5\u8fbe\u5230\u6700\u5927\u7684\u901a\u4fe1\u8ddd\u79bb\u3002<\/span>\u91c7\u7528\u963b\u6297<\/u>\u5339\u914d\u3001\u4f4e\u8870\u51cf\u7684\u4e13\u7528\u7535\u7f06<\/u>\u53ef\u4ee5\u8fbe\u52301800\u7c73\uff01\u8d85\u8fc71200\u7c73\uff0c\u53ef\u52a0\u4e2d\u7ee7\u5668\uff08\u6700\u591a8\u53ea\uff09\uff0c\u8fd9\u6837\u4f20\u8f93\u8ddd\u79bb\u63a5\u8fd110Km\u3002<\/span><\/p>\n

\n\t\u56db\u3001\u80fd\u5426\u652f\u6301\u591a\u70b9\u901a\u8baf<\/p>\n

\n\tRS232\uff1aRS232\u63a5\u53e3\u5728\u603b\u7ebf\u4e0a\u53ea\u5141\u8bb8\u8fde\u63a51\u4e2a\u6536\u53d1\u5668<\/u>\uff0c\u4e0d\u80fd\u652f\u6301\u591a\u7ad9\u6536\u53d1\u80fd\u529b\uff0c\u6240\u4ee5\u53ea\u80fd\u70b9\u5bf9\u70b9\u901a\u4fe1\uff0c\u4e0d\u652f\u6301\u591a\u70b9\u901a\u8baf\u3002RS485\uff1aRS485\u63a5\u53e3\u5728\u603b\u7ebf\u4e0a\u662f\u5141\u8bb8\u8fde\u63a5\u591a\u8fbe128\u4e2a\u6536\u53d1\u5668\u3002\u5373\u5177\u6709\u591a\u7ad9\u901a\u8baf\u80fd\u529b\uff0c\u8fd9\u6837\u7528\u6237\u53ef\u4ee5\u5229\u7528\u5355\u4e00\u7684RS485\u63a5\u53e3\u65b9\u4fbf\u5730\u5efa\u7acb\u8d77\u8bbe\u5907\u7f51\u7edc\u3002<\/span><\/p>\n

\n\t\u4e94\u3001\u901a\u8baf\u7ebf\u7684\u5dee\u522b<\/p>\n

\n\tRS232\uff1a\u53ef\u4ee5\u91c7\u7528\u4e09\u82af\u53cc\u7ede\u7ebf\u3001\u4e09\u82af\u5c4f\u853d\u7ebf\u7b49\u3002<\/span>RS485\uff1a<\/span>\u53ef\u4ee5\u91c7\u7528\u4e24\u82af\u53cc\u7ede\u7ebf\u3001\u4e24\u82af\u5c4f\u853d\u7ebf\u7b49\u3002<\/span><\/p>\n

\n\t\u5728\u4f4e\u901f\u3001\u77ed\u8ddd\u79bb\u3001\u65e0\u5e72\u6270\u7684\u573a\u5408\u53ef\u4ee5\u91c7\u7528\u666e\u901a\u7684\u53cc\u7ede\u7ebf\uff0c\u53cd\u4e4b\uff0c\u5728\u9ad8\u901f\u3001\u957f\u7ebf\u4f20\u8f93\u65f6\uff0c\u5219\u5fc5\u987b\u91c7\u7528\u963b\u6297\u5339\u914d\uff08\u4e00\u822c\u4e3a120Ω\uff09\u7684RS485\u4e13\u7528\u7535\u7f06\uff08STP-120Ω\uff08\u7528\u4e8eRS485 & CAN<\/u>\uff09\u4e00\u5bf918AWG\uff09\uff0c\u800c\u5728\u5e72\u6270\u6076\u52a3\u7684\u73af\u5883\u4e0b\u8fd8\u5e94\u91c7\u7528\u94e0\u88c5\u578b\u53cc\u7ede\u5c4f\u853d\u7535\u7f06\uff08ASTP-120Ω\uff08\u7528\u4e8eRS485 & CAN\uff09\u4e00\u5bf918AWG\uff09\u3002<\/p>\n

\n\t\u8865\u5145\uff1a=\u65e2\u7136RS232\u4f20\u8f93\u8ddd\u79bb\u53ea\u670915\u7c73\u8fd9\u4e48\u77ed\u7684\u8ddd\u79bb\uff0c\u90a3\u4e48\u4e3a\u4ec0\u4e48\u8fd8\u662f\u6709\u4eba\u4f7f\u7528\u5462\uff1f<\/span><\/p>\n

\n\t\u5176\u5b9e\u5b83\u7684\u5e94\u7528\u8fd8\u662f\u975e\u5e38\u5e7f\u6cdb\u7684\uff0c\u53ef\u4ee5\u8fde\u63a5\u5404\u79cd\u8bbe\u5907\uff0c\u4f8b\u5982\u76d1\u63a7<\/u>\uff0c\u5176\u5b83\u7684\u8bbe\u5907\u5347\u7ea7\u6216\u8c03\u8bd5\u53ef\u80fd\u90fd\u4f1a\u7528\u5230\u5b83\u3002\u529f\u80fd\u4e0eUSB<\/u>\u63a5\u53e3\u6bd4\u8f83\u63a5\u8fd1\uff0c\u968f\u7740USB\u63a5\u53e3\u8d8a\u6765\u8d8a\u666e\u904d\uff0c\u4e5f\u4f1a\u51fa\u73b0\u66f4\u591a\u7684\u628aUSB\u8f6c\u6362\u6210\u4e3aRS232\u6216\u8005\u5176\u4ed6\u63a5\u53e3\u7684\u88c5\u6362\u88c5\u7f6e\u3002<\/p>\n

\n\t\u901a\u8fc7USB\u63a5\u53e3\u53ef\u4ee5\u8fde\u63a5\u66f4\u591a\u7684RS232\u8bbe\u5907\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u83b7\u5f97\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u5ea6\uff0c\u5b9e\u73b0\u771f\u6b63\u7684\u5373\u63d2\u5373\u7528\uff0c\u540c\u65f6\u89e3\u51b3\u4e86USB\u63a5\u53e3\u4e0d\u80fd\u8fdc\u8ddd\u79bb\u4f20\u8f93\u7684\u7f3a\u70b9\uff08USB\u901a\u8baf\u8ddd\u79bb\u57285\u7c73\u5185\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

RS 232\u4e0eRS485\u4e00\u76f4\u662f\u5f31\u7535\u5e38\u89c1\u7684 \u63a5\u53e3 \uff0c\u56e0\u4e3a\u63a5\u53e3\u5f88\u7c7b\u4f3c\u5f88\u591a\u4eba\u90fd\u4e0d\u77e5\u9053\u4ed6\u4eec\u4e4b\u524d\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u6240\u4ee5\u4eca\u5929\u5c31\u8ba9\u6210\u90fd\u4ebf\u4f70\u7279\u7535\u5b50\u79d1\u6280\u6709\u9650\u516c\u53f8\u7684\u5c0f\u7f16\u6765\u4e3a\u6211\u4eec\u8bb2\u89e3\u4e00\u4e0b\u3002 \u4e00\u3001\u63a5\u53e3\u7684\u7269\u7406\u7ed3\u6784<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3109"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3109"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3109\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3109"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}