{"id":78124,"date":"2024-01-14T21:15:06","date_gmt":"2024-01-14T13:15:06","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=78124"},"modified":"2024-01-14T21:15:06","modified_gmt":"2024-01-14T13:15:06","slug":"rrhrqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/78124.html","title":{"rendered":"RS232\u3001RS485\u548cRS422\u533a\u522b"},"content":{"rendered":"
RS232\u3001RS485\u548cRS422\u662f\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u5b83\u4eec\u5728\u5de5\u4e1a\u63a7\u5236\u3001\u901a\u4fe1\u8bbe\u5907\u7b49\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u4eca\u5929\u6211\u4eec\u5c06\u4ecb\u7ecd\u5b83\u4eec\u7684\u533a\u522b\u548c\u7279\u70b9\u3002<\/p>\n
RS232\u662f\u4e00\u79cd\u6807\u51c6\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u5e38\u89c1\u4e8e\u4e2a\u4eba\u7535\u8111\u548c\u5916\u56f4\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5b83\u4f7f\u7528\u8d1f\u7535\u538b\u8868\u793a\u903b\u8f911\uff0c\u6b63\u7535\u538b\u8868\u793a\u903b\u8f910\u3002RS232\u901a\u4fe1\u8ddd\u79bb\u8f83\u77ed\uff0c\u901a\u5e38\u6700\u8fdc\u53ef\u8fbe50\u82f1\u5c3a\u3002\u8fd9\u79cd\u63a5\u53e3\u6807\u51c6\u5e38\u7528\u4e8e\u914d\u7f6e\u8def\u7531\u5668\u3001\u6a21\u5757\u5316\u901a\u4fe1\u8bbe\u5907\u7b49\u573a\u666f\u3002<\/p>\n
1. \u4fe1\u53f7\u7535\u5e73\uff1a\u4f7f\u7528\u8d1f\u7535\u538b\u8868\u793a\u903b\u8f911\uff0c\u6b63\u7535\u538b\u8868\u793a\u903b\u8f910\uff1b<\/p>\n
2. \u901a\u4fe1\u8ddd\u79bb\uff1a\u77ed\u8ddd\u79bb\u901a\u4fe1\uff0c\u7ea650\u82f1\u5c3a\uff1b<\/p>\n
3. \u5e94\u7528\u573a\u666f\uff1a\u4e2a\u4eba\u7535\u8111\u548c\u5916\u56f4\u8bbe\u5907\u7684\u901a\u4fe1\uff0c\u8def\u7531\u5668\u914d\u7f6e\u7b49\u3002<\/p>\n
RS485\u548cRS422\u662f\u7528\u4e8e\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u9002\u7528\u4e8e\u957f\u8ddd\u79bb\u901a\u4fe1\u548c\u591a\u8282\u70b9\u901a\u4fe1\u3002RS485\u548cRS422\u90fd\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u80fd\u591f\u6709\u6548\u62b5\u6297\u5e72\u6270\u3002RS485\u652f\u6301\u591a\u4e2a\u8bbe\u5907\u8fde\u63a5\u5728\u540c\u4e00\u603b\u7ebf\u4e0a\uff0c\u800cRS422\u652f\u6301\u70b9\u5bf9\u70b9\u8fde\u63a5\u3002<\/p>\n
1. \u8fde\u63a5\u65b9\u5f0f\uff1aRS485\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0cRS422\u652f\u6301\u70b9\u5bf9\u70b9<\/a>\u8fde\u63a5\uff1b<\/p>\n 2. \u4f20\u8f93\u8ddd\u79bb\uff1aRS485\u4f20\u8f93\u8ddd\u79bb\u53ef\u957f\u8fbe1200\u7c73\uff0cRS422\u901a\u5e38\u6700\u8fdc\u53ef\u8fbe1500\u7c73\uff1b<\/p>\n 3. \u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff1aRS485\u548cRS422\u90fd\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff1b<\/p>\n