{"id":43871,"date":"2023-09-28T23:56:21","date_gmt":"2023-09-28T15:56:21","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=43871"},"modified":"2023-09-28T23:56:21","modified_gmt":"2023-09-28T15:56:21","slug":"ckljsb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/43871.html","title":{"rendered":"COM\u53e3\u8fde\u63a5\u8bbe\u5907"},"content":{"rendered":"

  COM\u53e3\uff08Communication Port\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u8fde\u63a5\u5916\u90e8\u8bbe\u5907\u7684\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u4ea4\u6362\u3002COM\u53e3\u53ef\u4ee5\u4f7f\u7528RS-232\u3001RS-422\u6216RS-485\u6807\u51c6\u8fdb\u884c\u8fde\u63a5\uff0c\u8fd9\u4e9b\u63a5\u53e3\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u901f\u3001\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u3002\u672c\u6587\u5c06\u4ecb\u7ecdCOM\u53e3\u5982\u4f55\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u4ee5\u53ca\u5b83\u7684\u4f18\u52bf\u548c\u52a3\u52bf\u3002<\/p>\n

\u8fde\u63a5\u5916\u90e8\u8bbe\u5907<\/h2>\n

  COM\u53e3\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u5305\u62ec\u6253\u5370\u673a\u3001\u626b\u63cf\u4eea\u3001\u5916\u90e8\u5b58\u50a8\u5668\u3001\u7f51\u7edc\u8bbe\u5907\u7b49\u3002\u4f7f\u7528COM\u53e3\u8fde\u63a5\u5916\u90e8\u8bbe\u5907\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u901f\u3001\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n

  RS-232<\/h3>\n

  RS-232\u662f\u4e00\u79cd\u5e38\u7528\u7684COM\u53e3\u63a5\u53e3\u6807\u51c6\uff0c\u5b83\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u901f\u7684\u6570\u636e\u4f20\u8f93\uff0c\u6700\u9ad8\u53ef\u8fbe115200bps\uff08\u6bd4\u7279\u6bcf\u79d2\uff09\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u5305\u62ec\u6253\u5370\u673a\u3001\u626b\u63cf\u4eea\u3001\u5916\u90e8\u5b58\u50a8\u5668\u3001\u7f51\u7edc\u8bbe\u5907\u7b49\u3002<\/p>\n

  RS-422<\/h3>\n

  RS-422\u662f\u4e00\u79cd\u53ef\u9760\u7684COM\u53e3\u63a5\u53e3\u6807\u51c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u6bd4RS-232\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u5ea6\uff0c\u6700\u9ad8\u53ef\u8fbe1Mbps\uff08\u6bd4\u7279\u6bcf\u79d2\uff09\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u5305\u62ec\u6253\u5370\u673a\u3001\u626b\u63cf\u4eea\u3001\u5916\u90e8\u5b58\u50a8\u5668\u3001\u7f51\u7edc\u8bbe\u5907\u7b49\u3002<\/p>\n

  RS-485<\/h3>\n

  RS-485\u662f\u4e00\u79cd\u9ad8\u901f\u3001\u53ef\u9760\u7684COM\u53e3\u63a5\u53e3\u6807\u51c6\uff0c\u5b83\u53ef\u4ee5\u63d0\u4f9b\u6700\u9ad8\u53ef\u8fbe10Mbps\uff08\u6bd4\u7279\u6bcf\u79d2\uff09\u7684\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u5404\u79cd\u5916\u90e8\u8bbe\u5907\uff0c\u5305\u62ec\u6253\u5370\u673a\u3001\u626b\u63cf\u4eea\u3001\u5916\u90e8\u5b58\u50a8\u5668\u3001\u7f51\u7edc\u8bbe\u5907\u7b49\u3002<\/p>\n

COM\u53e3\u7684\u4f18\u52bf<\/h2>\n

  COM\u53e3\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n