{"id":77734,"date":"2023-12-30T07:51:24","date_gmt":"2023-12-29T23:51:24","guid":{"rendered":"\/\/www.viralrail.com\/?p=77734"},"modified":"2023-12-30T07:51:24","modified_gmt":"2023-12-29T23:51:24","slug":"ryrdxhxcy","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/77734.html","title":{"rendered":"RS232\u4e0eRS485\u7684\u4fe1\u53f7\u7ebf\u5dee\u5f02"},"content":{"rendered":"

  \u672c\u6587\u5c06\u8ba8\u8bbaRS232\u4e0eRS485\u901a\u4fe1\u4e2d\u4fe1\u53f7\u7ebf\u7684\u5dee\u5f02\uff0c\u63a2\u8ba8\u4e3a\u4f55RS232\u8f83RS485\u9700\u8981\u66f4\u591a\u7684\u4fe1\u53f7\u7ebf\u3002<\/p>\n

RS232\u548cRS485\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

  \u5728\u73b0\u4ee3\u901a\u4fe1\u5e94\u7528\u4e2d\uff0cRS232\u548cRS485\u90fd\u662f\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\u3002RS232\u662f\u4e00\u79cd\u70b9\u5bf9\u70b9\u901a\u4fe1\u6807\u51c6\uff0c\u5e38\u7528\u4e8e\u8fde\u63a5\u8ba1\u7b97\u673a\u548c\u5916\u56f4\u8bbe\u5907\uff0c\u5982\u6253\u5370\u673a\u3001\u8c03\u5236\u89e3\u8c03<\/a>\u5668\u7b49\u3002\u5b83\u4f7f\u7528\u5355\u5de5\u6216\u8005\u53cc\u5de5\u901a\u4fe1\u65b9\u5f0f\uff0c\u901a\u5e38\u4f7f\u7528DB9\u6216DB25\u8fde\u63a5\u5668\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u53d1\u9001\u3001\u63a5\u6536\u3001\u5730\u7ebf\u7b49\u51e0\u6839\u4fe1\u53f7\u7ebf\u3002<\/p>\n

  RS232\u7684\u4fe1\u53f7\u7ebf\u7ed3\u6784<\/h3>\n

  RS232\u901a\u4fe1\u9700\u8981\u8f83\u591a\u7684\u4fe1\u53f7\u7ebf\u3002\u4e00\u822c\u6765\u8bf4\uff0cRS232\u8fde\u63a5\u5668\u5305\u542b\u4e86\u53d1\u9001\u6570\u636e\u7ebf\uff08TXD\uff09\u3001\u63a5\u6536\u6570\u636e\u7ebf\uff08RXD\uff09\u3001\u5730\u7ebf\uff08GND\uff09\u7b49\u51e0\u6839\u5fc5\u8981\u7684\u4fe1\u53f7\u7ebf\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u80fd\u5305\u62ec\u6570\u636e\u5c31\u7eea\u4fe1\u53f7\uff08DTR\uff09\u3001\u6570\u636e\u7aef\u5c31\u7eea\u4fe1\u53f7\uff08DSR\uff09\u3001\u8bf7\u6c42\u53d1\u9001\uff08RTS\uff09\u3001\u6e05\u9664\u53d1\u9001\uff08CTS\uff09\u7b49\u4fe1\u53f7\u7ebf\uff0c\u8fd9\u4e9b\u4fe1\u53f7\u7ebf\u7684\u5b58\u5728\u4f7f\u5f97RS232\u901a\u4fe1\u9700\u8981\u66f4\u591a\u7684\u8fde\u63a5\u7ebf\u3002<\/p>\n

RS485\u7684\u4fe1\u53f7\u7ebf\u7ed3\u6784<\/h2>\n

  RS485\u662f\u4e00\u79cd\u591a\u70b9\u901a\u4fe1\u6807\u51c6\uff0c\u5e38\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u9886\u57df\u548c\u957f\u8ddd\u79bb\u901a\u4fe1\u3002\u76f8\u8f83\u4e8eRS232\uff0cRS485\u901a\u4fe1\u66f4\u52a0\u7075\u6d3b\uff0c\u80fd\u591f\u652f\u6301\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u5e76\u4e14\u5177\u6709\u66f4\u597d\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n

  RS485\u7684\u4fe1\u53f7\u7ebf\u7ed3\u6784<\/h3>\n

  RS485\u901a\u4fe1\u76f8\u5bf9\u4e8eRS232\u6765\u8bf4\u9700\u8981\u66f4\u5c11\u7684\u4fe1\u53f7\u7ebf\u3002\u5178\u578b\u7684RS485\u8fde\u63a5\u5305\u62ec\u4e24\u6839\u6570\u636e\u7ebf\uff08A\u548cB\uff09\u3001\u5730\u7ebf\uff08GND\uff09\u548c\u53ef\u9009\u7684\u4fe1\u53f7\u63a7\u5236\u7ebf\u3002RS485\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u80fd\u591f\u5728\u8fdc\u8ddd\u79bb\u901a\u4fe1\u65f6\u63d0\u4f9b\u66f4\u597d\u7684\u6297\u5e72\u6270\u6027\u80fd\u3002<\/p>\n

RS232\u8f83RS485\u9700\u8981\u66f4\u591a\u4fe1\u53f7\u7ebf\u7684\u539f\u56e0<\/h2>\n

  RS232\u76f8\u8f83\u4e8eRS485\u9700\u8981\u66f4\u591a\u4fe1\u53f7\u7ebf\u7684\u4e3b\u8981\u539f\u56e0\u5728\u4e8e\u5176\u70b9\u5bf9\u70b9<\/a>\u7684\u901a\u4fe1\u7279\u6027\uff0c\u4ee5\u53ca\u5bf9\u901a\u4fe1\u63a7\u5236\u7684\u9700\u6c42\u3002\u5728RS232\u901a\u4fe1\u4e2d\uff0c\u7531\u4e8e\u5176\u5355\u5de5\u6216\u8005\u53cc\u5de5\u901a\u4fe1\u65b9\u5f0f\uff0c\u9700\u8981\u5bf9\u901a\u4fe1\u7ebf\u8def\u7684\u63a7\u5236\u66f4\u52a0\u4e25\u683c\uff0c\u56e0\u6b64\u4f1a\u5305\u542b\u66f4\u591a\u7684\u4fe1\u53f7\u7ebf\u7528\u4e8e\u63a7\u5236\u901a\u4fe1\u6d41\u7a0b\u3002<\/p>\n

  \u4f20\u8f93\u8ddd\u79bb\u548c\u6297\u5e72\u6270\u80fd\u529b<\/h3>\n

  \u53e6\u5916\uff0cRS485\u901a\u4fe1\u91c7\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u8fd9\u4f7f\u5f97\u5b83\u5728\u957f\u8ddd\u79bb\u901a\u4fe1\u548c\u6297\u5e72\u6270\u80fd\u529b\u65b9\u9762\u8868\u73b0\u66f4\u597d\u3002\u56e0\u6b64\uff0c\u76f8\u5bf9\u4e8eRS232\uff0cRS485\u901a\u4fe1\u5728\u63a7\u5236\u4fe1\u53f7\u7ebf\u6570\u91cf\u7684\u540c\u65f6\uff0c\u5b9e\u73b0\u4e86\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u9760\u7684\u591a\u70b9\u901a\u4fe1\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

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