{"id":77743,"date":"2024-01-14T05:08:30","date_gmt":"2024-01-13T21:08:30","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=77743"},"modified":"2024-01-14T05:08:30","modified_gmt":"2024-01-13T21:08:30","slug":"ljdrhr","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/77743.html","title":{"rendered":"\u4e86\u89e3DB9\u3001RS232\u548cRS485"},"content":{"rendered":"

  \u672c\u6587\u5c06\u5e26\u60a8\u6df1\u5165\u4e86\u89e3DB9\u3001RS232\u548cRS485\uff0c\u8fd9\u4e9b\u662f\u4e32\u53e3\u901a\u4fe1\u9886\u57df\u7684\u5173\u952e\u8bcd\u3002\u4e32\u53e3\u901a\u4fe1\u5728\u73b0\u4ee3\u6280\u672f\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u4e86\u89e3\u8fd9\u4e9b\u57fa\u672c\u6982\u5ff5\u5bf9\u4e8e\u7406\u89e3\u548c\u5e94\u7528\u73b0\u4ee3\u8bbe\u5907\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

DB9\u8fde\u63a5\u5668\u7b80\u4ecb<\/h2>\n

  DB9\u8fde\u63a5\u5668\u662f\u4e00\u79cd\u5e7f\u6cdb\u7528\u4e8e\u4e32\u884c\u901a\u4fe1\u7684\u8fde\u63a5\u5668\uff0c\u901a\u5e38\u88ab\u5e7f\u6cdb\u5730\u4f7f\u7528\u4e8e\u8ba1\u7b97\u673a\u8fde\u63a5\u5916\u90e8\u8bbe\u5907\uff0c\u4f8b\u5982\u8c03\u5236\u89e3\u8c03\u5668\u3001\u6253\u5370\u673a\u3001\u952e\u76d8\u7b49\u7b49\u3002\u5b83\u75319\u4e2a\u9488\u72b6\u91d1\u5c5e\u63a5\u89e6\u7269\u7ec4\u6210\uff0c\u6bcf\u4e2a\u63a5\u89e6\u7269\u7684\u4f4d\u7f6e\u548c\u7528\u9014\u90fd\u88ab\u5b9a\u4e49\u6210\u4e00\u79cd\u6807\u51c6\u3002<\/p>\n

  DB9\u8fde\u63a5\u5668\u7684\u4f7f\u7528<\/h3>\n

  DB9\u8fde\u63a5\u5668\u7684\u4f7f\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5b83\u53ef\u4ee5\u88ab\u7528\u4e8e\u8fde\u63a5\u8ba1\u7b97\u673a\u4e0e\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u5305\u62ec\u4e32\u884c\u6253\u5370\u673a\u3001\u8c03\u5236\u89e3\u8c03\u5668\u3001\u6570\u5b57\u76f8\u673a\u7b49\u7b49\u3002\u8fd9\u79cd\u8fde\u63a5\u5668\u80fd\u591f\u7a33\u5b9a\u5730\u4f20\u8f93\u6570\u636e\uff0c\u56e0\u6b64\u5728\u901a\u4fe1\u8bbe\u5907\u548c\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u4e2d\u5e94\u7528\u5e7f\u6cdb\u3002<\/p>\n

  DB9\u8fde\u63a5\u5668\u7684\u7ed3\u6784<\/h3>\n

  DB9\u8fde\u63a5\u5668\u5185\u90e8\u6709\u4e5d\u4e2a\u5f15\u811a\uff0c\u6bcf\u4e2a\u5f15\u811a\u90fd\u6709\u81ea\u5df1\u7684\u529f\u80fd\uff0c\u5305\u62ec\u6570\u636e\u4f20\u8f93\u3001\u5730\u7ebf\u3001\u4e1d\u5370\u7ebf\u7b49\u3002\u6b63\u786e\u5730\u8fde\u63a5DB9\u8fde\u63a5\u5668\u662f\u4fdd\u969c\u4e32\u884c\u901a\u4fe1\u6b63\u5e38\u5de5\u4f5c\u7684\u5173\u952e\uff0c\u5b83\u7684\u6b63\u786e\u6027\u80fd\u51b3\u5b9a\u4e86\u6570\u636e\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n

RS232\u548cRS485\u901a\u4fe1\u534f\u8bae<\/h2>\n

  RS232\u548cRS485\u662f\u4e24\u79cd\u4e32\u53e3\u901a\u4fe1<\/a>\u534f\u8bae\uff0c\u5b83\u4eec\u5b9a\u4e49\u4e86\u4e32\u884c\u901a\u4fe1\u4fe1\u53f7\u7684\u6807\u51c6\u548c\u4f20\u8f93\u65b9\u5f0f\u3002\u4e86\u89e3\u8fd9\u4e24\u79cd\u534f\u8bae\u5bf9\u4e8e\u4e32\u53e3\u901a\u4fe1\u7684\u7406\u89e3\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

  RS232\u901a\u4fe1\u534f\u8bae<\/h3>\n

  RS232\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u5b83\u7528\u4e8e\u5b9a\u4e49\u6570\u636e\u4f20\u8f93\u65f6\u7684\u7535\u6c14\u7279\u6027\u548c\u8fde\u63a5\u5668\u6392\u5217\u3002RS232<\/a>\u901a\u5e38\u4f7f\u7528DB9\u8fde\u63a5\u5668\uff0c\u5b83\u80fd\u591f\u5728\u8f83\u77ed\u8ddd\u79bb\u5185\u4f20\u8f93\u6570\u636e\uff0c\u4f8b\u5982\u5728\u8ba1\u7b97\u673a\u4e0e\u5916\u56f4\u8bbe\u5907\u4e4b\u95f4\u3002<\/p>\n

  RS232\u7684\u5de5\u4f5c\u539f\u7406<\/h4>\n

  RS232\u901a\u4fe1\u4f7f\u7528\u4e00\u5bf9\u76f8\u5bf9\u7684\u4f20\u8f93\u7ebf\uff0c\u4e00\u6839\u7528\u4e8e\u6570\u636e\u4f20\u8f93\uff0c\u53e6\u4e00\u6839\u7528\u4e8e\u6570\u636e\u63a5\u6536\u3002\u5b83\u5728\u6570\u636e\u4f20\u8f93\u4e0a\u80fd\u591f\u7a33\u5b9a\u53ef\u9760\uff0c\u4f46\u5728\u957f\u8ddd\u79bb\u4f20\u8f93\u4e0a\u5b58\u5728\u4fe1\u53f7\u8870\u51cf\u7684\u95ee\u9898\u3002<\/p>\n

  RS485\u901a\u4fe1\u534f\u8bae<\/h3>\n

  RS485<\/a>\u662f\u4e00\u79cd\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u5b9a\u4e49\u4e86\u5728\u957f\u8ddd\u79bb\u548c\u591a\u8282\u70b9\u901a\u4fe1\u65f6\u7684\u6570\u636e\u4f20\u8f93\u6807\u51c6\u3002RS485\u901a\u4fe1\u534f\u8bae\u5141\u8bb8\u591a\u4e2a\u8bbe\u5907\u8fde\u63a5\u5230\u540c\u4e00\u603b\u7ebf\u4e0a\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

  RS485\u7684\u4f18\u52bf<\/h4>\n

  RS485\u534f\u8bae\u5728\u957f\u8ddd\u79bb\u6570\u636e\u4f20\u8f93\u548c\u591a\u8282\u70b9\u901a\u4fe1\u65b9\u9762\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u9002\u7528\u4e8e\u5de5\u63a7\u9886\u57df\u548c\u4e00\u4e9b\u9700\u8981\u8fdc\u8ddd\u79bb\u6570\u636e\u4f20\u8f93\u7684\u5e94\u7528\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

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