{"id":78631,"date":"2024-01-09T10:35:52","date_gmt":"2024-01-09T02:35:52","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=78631"},"modified":"2024-01-09T10:35:52","modified_gmt":"2024-01-09T02:35:52","slug":"ckqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/78631.html","title":{"rendered":"\u4e32\u53e3232\u3001422\u3001485 \u533a\u522b"},"content":{"rendered":"

  \u4e32\u53e3232\u3001422\u3001485\u662f\u7528\u4e8e\u6570\u636e\u901a\u4fe1\u7684\u4e0d\u540c\u63a5\u53e3\u6807\u51c6\u3002\u4eca\u5929\u6211\u4eec\u5c06\u4ecb\u7ecd\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u9009\u62e9\u5408\u9002\u7684\u4e32\u53e3\u6807\u51c6\u3002<\/p>\n

\u4e32\u53e3232<\/h2>\n

  \u4e32\u53e3232\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u4e5f\u79f0\u4e3aRS-232\u63a5\u53e3\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u8fde\u63a5\u8ba1\u7b97\u673a\u548c\u5916\u90e8\u8bbe\u5907\uff0c\u5982\u6253\u5370\u673a\u3001\u8c03\u5236\u89e3\u8c03\u5668\u7b49\u3002RS-232\u63a5\u53e3\u901a\u5e38\u91c7\u7528DB9\u6216DB25\u8fde\u63a5\u5668\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5355\u5411\u6216\u53cc\u5411\u901a\u4fe1\u3002<\/p>\n

  \u7279\u70b9<\/h3>\n

  RS-232\u901a\u4fe1\u4f7f\u7528\u5355\u7aef\u4fe1\u53f7\u4f20\u8f93\uff0c\u901a\u5e38\u91c7\u7528DB9\u8fde\u63a5\u5668\uff0c\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u7ea6\u4e3a15\u7c73\u3002RS-232\u63a5\u53e3\u4f7f\u7528\u8f83\u9ad8\u7684\u7535\u538b\u6c34\u5e73\u8868\u793a\u903b\u8f91\u201c0\u201d\u548c\u201c1\u201d\uff0c\u4e00\u822c\u4e3a-3V\u81f3-15V\u8868\u793a\u903b\u8f91\u201c1\u201d\uff0c+3V\u81f3+15V\u8868\u793a\u903b\u8f91\u201c0\u201d\u3002<\/p>\n

  \u5e94\u7528\u9886\u57df<\/h3>\n

  RS-232\u63a5\u53e3\u5e38\u7528\u4e8e\u8f83\u77ed\u8ddd\u79bb\u7684\u4e32\u884c\u901a\u4fe1\uff0c\u5982\u4e2a\u4eba\u7535\u8111\u4e0e\u5916\u56f4\u8bbe\u5907\u4e4b\u95f4\u7684\u8fde\u63a5\u3002\u7136\u800c\uff0c\u7531\u4e8e\u5176\u9650\u5236\u4e86\u4f20\u8f93\u8ddd\u79bb\u548c\u901f\u7387\uff0c\u73b0\u5728\u5df2\u9010\u6e10\u88ab\u66f4\u5148\u8fdb\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\u6240\u66ff\u4ee3\u3002<\/p>\n

\u4e32\u53e3422\u4e0e485<\/h2>\n

  \u4e32\u53e3422\u548c485\u662f\u4e00\u79cd\u9ad8\u901f\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u3001\u591a\u8282\u70b9\u7684\u901a\u4fe1\u9700\u6c42\u3002\u867d\u7136\u5b83\u4eec\u6709\u5171\u540c\u7684\u5e94\u7528\u9886\u57df\uff0c\u4f46\u5728\u7535\u6c14\u7279\u6027\u548c\u901a\u4fe1\u65b9\u5f0f\u4e0a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n

  \u4e32\u53e3422<\/h3>\n

  RS-422\u63a5\u53e3\u91c7\u7528\u4e86\u5dee\u5206\u4f20\u8f93\u65b9\u5f0f\uff0c\u5373\u4f7f\u7528\u4e00\u5bf9\u4fe1\u53f7\u7ebf\u4f20\u8f93\u6570\u636e\u548c\u65f6\u949f\u4fe1\u53f7\uff0c\u5177\u6709\u8f83\u597d\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8ddd\u79bb\u8fdc\u7684\u7279\u70b9\u3002RS-422\u5141\u8bb8\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u8fbe1200\u7c73\uff0c\u5e76\u652f\u6301\u5168\u53cc\u5de5\u901a\u4fe1\u3002<\/p>\n

  \u4f18\u52bf<\/h4>\n

  RS-422\u63a5\u53e3\u9002\u7528\u4e8e\u4e2d\u7b49\u957f\u5ea6\u548c\u901f\u7387\u7684\u6570\u636e\u901a\u4fe1\uff0c\u5e38\u89c1\u4e8e\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u3001\u8fdc\u7a0b\u76d1\u6d4b\u548c\u4f20\u611f\u5668\u7f51\u7edc\u3002<\/p>\n

  \u4e32\u53e3485<\/h3>\n

  RS-485\u63a5\u53e3\u4e5f\u91c7\u7528\u4e86\u5dee\u5206\u4f20\u8f93\u65b9\u5f0f\uff0c\u4f46\u4e0d\u540c\u4e8eRS-422\u7684\u5168\u53cc\u5de5\u901a\u4fe1\uff0cRS-485\u652f\u6301\u534a\u53cc\u5de5\u901a\u4fe1\uff0c\u5e76\u53ef\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\u7ec4\u6210\u591a\u4e3b\u4ece\u7f51\u7edc\u3002\u5b83\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u9ad8\uff0c\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe1200\u7c73\uff0c\u662f\u4e00\u79cd\u7406\u60f3\u7684\u8fdc\u8ddd\u79bb\u6570\u636e\u901a\u4fe1\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

  \u5e94\u7528\u573a\u666f<\/h4>\n

  RS-485\u63a5\u53e3\u5e7f\u6cdb\u7528\u4e8e\u5de5\u4e1a\u63a7\u5236\u9886\u57df\u3001\u697c\u5b87\u81ea\u63a7\u7cfb\u7edf\u3001\u7535\u529b\u7cfb\u7edf\u3001\u5b89\u9632\u76d1\u63a7\u7b49\u9700\u8981\u957f\u8ddd\u79bb\u3001\u591a\u8282\u70b9\u901a\u4fe1\u7684\u573a\u666f\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u4e32\u53e3232\u3001422\u3001485\u662f\u4e0d\u540c\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u6bcf\u79cd\u6807\u51c6\u90fd\u6709\u7279\u5b9a\u7684\u7535\u6c14\u7279\u6027\u548c\u901a\u4fe1\u65b9\u5f0f\u3002<\/strong>RS-232\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\uff0c\u800cRS-422\u548cRS-485\u5219\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u3001\u591a\u8282\u70b9\u901a\u4fe1\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u573a\u666f\u548c\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u4e32\u53e3\u6807\u51c6\uff0c\u4ee5\u786e\u4fdd\u7a33\u5b9a\u53ef\u9760\u7684\u6570\u636e\u901a\u4fe1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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