{"id":77717,"date":"2023-12-27T15:58:17","date_gmt":"2023-12-27T07:58:17","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=77717"},"modified":"2023-12-27T15:58:17","modified_gmt":"2023-12-27T07:58:17","slug":"cktxfsrrhrdqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/77717.html","title":{"rendered":"\u4e32\u53e3\u901a\u4fe1\u65b9\u5f0f\uff1aRS232\u3001RS485\u548cRS422\u7684\u533a\u522b"},"content":{"rendered":"

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RS232\u4e32\u53e3\u901a\u4fe1<\/h2>\n

  \u5b9a\u4e49<\/h3>\n

  RS232\u662f\u4e00\u79cd\u6807\u51c6\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u8f83\u77ed\u8ddd\u79bb\u7684\u4e32\u53e3\u901a\u4fe1\uff0c\u5982\u7535\u8111\u548c\u8c03\u5236\u89e3\u8c03\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\u3002<\/p>\n

  \u7279\u70b9<\/h3>\n

  RS232\u901a\u4fe1\u662f\u5355\u5411\u7684\u3001\u70b9\u5bf9\u70b9<\/a>\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u4f7f\u7528\u5168\u53cc\u5de5\u901a\u4fe1\u3002\u5b83\u91c7\u7528\u7684\u662f\u5355\u7aef\u53e3\uff0c\u4fe1\u53f7\u7ebf\u5305\u62ec\u53d1\u9001\u7ebf\u3001\u63a5\u6536\u7ebf\u548c\u5730\u7ebf\uff0c\u901a\u5e38\u4f7f\u7528DB-9\u6216DB-25\u8fde\u63a5\u5668\u3002<\/p>\n

  \u5e94\u7528<\/h3>\n

  RS232\u901a\u5e38\u7528\u4e8e\u4e2a\u4eba\u7535\u8111\u3001\u6253\u5370\u673a\u3001\u8c03\u5236\u89e3\u8c03\u5668\u7b49\u8bbe\u5907\u4e4b\u95f4\u7684\u8fde\u63a5\uff0c\u4f20\u8f93\u901f\u5ea6\u4e00\u822c\u5728115200 bps\u4ee5\u4e0b\uff0c\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n

RS485\u4e32\u53e3\u901a\u4fe1<\/h2>\n

  \u5b9a\u4e49<\/h3>\n

  RS485\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u7528\u4e8e\u591a\u70b9\u901a\u4fe1\u548c\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002\u5b83\u53ef\u4ee5\u540c\u65f6\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\uff0c\u5e76\u4e14\u652f\u6301\u5168\u53cc\u5de5<\/a>\u901a\u4fe1\u3002<\/p>\n

  \u7279\u70b9<\/h3>\n

  RS485\u901a\u4fe1\u662f\u591a\u70b9\u901a\u4fe1\u7684\u65b9\u5f0f\uff0c\u5b83\u53ef\u4ee5\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\uff0c\u6bcf\u4e2a\u8bbe\u5907\u90fd\u53ef\u4ee5\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u5b83\u91c7\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u901a\u8fc7\u4e24\u6839\u6570\u636e\u7ebf\u548c\u4e00\u4e2a\u5730\u7ebf\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<\/p>\n

  \u5e94\u7528<\/h3>\n

  RS485\u901a\u5e38\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u3001\u73af\u5883\u76d1\u6d4b<\/a>\u3001\u95e8\u7981\u7cfb\u7edf\u7b49\u9700\u8981\u8fdc\u8ddd\u79bb\u548c\u591a\u8bbe\u5907\u901a\u4fe1\u7684\u573a\u5408\uff0c\u4f20\u8f93\u901f\u5ea6\u53ef\u4ee5\u8fbe\u523010 Mbps\uff0c\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u4f20\u8f93\u3002<\/p>\n

RS422\u4e32\u53e3\u901a\u4fe1<\/h2>\n

  \u5b9a\u4e49<\/h3>\n

  RS422\u662f\u4e00\u79cd\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u9002\u7528\u4e8e\u70b9\u5bf9\u70b9\u548c\u70b9\u5bf9\u591a\u70b9\u901a\u4fe1\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u5168\u53cc\u5de5\u901a\u4fe1\uff0c\u4f20\u8f93\u901f\u5ea6\u8f83\u9ad8\u3002<\/p>\n

  \u7279\u70b9<\/h3>\n

  RS422\u901a\u4fe1\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u53ef\u4ee5\u5b9e\u73b0\u957f\u8ddd\u79bb\u548c\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u9002\u7528\u4e8e\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u6570\u636e\u901a\u4fe1\u3002\u5b83\u4e0eRS232\u901a\u4fe1\u7c7b\u4f3c\uff0c\u4f46\u53ef\u4ee5\u652f\u6301\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u5ea6\u3002<\/p>\n

  \u5e94\u7528<\/h3>\n

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\u603b\u7ed3<\/h2>\n

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