{"id":69225,"date":"2023-12-23T19:08:46","date_gmt":"2023-12-23T11:08:46","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=69225"},"modified":"2023-12-23T19:08:46","modified_gmt":"2023-12-23T11:08:46","slug":"ryrjkdqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/69225.html","title":{"rendered":"RS232\u4e0eRS485\u63a5\u53e3\u7684\u533a\u522b"},"content":{"rendered":"
RS232\u548cRS485\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\u548c\u81ea\u52a8\u5316\u7cfb\u7edf\u7b49\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u672c\u6587\u5c06\u4ecb\u7ecdRS232\u548cRS485\u63a5\u53e3\u7684\u533a\u522b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u6e05\u6670\u5730\u7406\u89e3\u5b83\u4eec\u7684\u7279\u70b9\u548c\u7528\u9014\u3002<\/p>\n
RS232\u662f\u4e00\u79cd\u6807\u51c6\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u901a\u5e38\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5b83\u662f\u5355\u5411\u901a\u4fe1\u63a5\u53e3\uff0c\u53ea\u80fd\u5728\u4e00\u5bf9\u4e00\u7684\u8fde\u63a5\u4e2d\u4f20\u8f93\u6570\u636e\u3002RS232\u63a5\u53e3\u4f7f\u7528\u8f83\u9ad8\u7684\u7535\u538b\u8868\u793a\u903b\u8f91\u201c0\u201d\u548c\u8f83\u4f4e\u7684\u7535\u538b\u8868\u793a\u903b\u8f91\u201c1\u201d\uff0c\u4f20\u8f93\u8ddd\u79bb\u53d7\u9650\uff0c\u901a\u5e38\u572815\u7c73\u5de6\u53f3\u3002\u6b64\u5916\uff0cRS232\u63a5\u53e3\u901a\u5e38\u4f7f\u7528DB9\u6216DB25\u8fde\u63a5\u5668\u3002<\/p>\n
1. \u5355\u5411\u901a\u4fe1\u63a5\u53e3\uff0c\u53ea\u80fd\u5b9e\u73b0\u4e00\u5bf9\u4e00\u7684\u8fde\u63a5\u3002<\/p>\n
2. \u4f7f\u7528\u8f83\u9ad8\u7684\u7535\u538b\u8868\u793a\u903b\u8f91\u201c0\u201d\u548c\u8f83\u4f4e\u7684\u7535\u538b\u8868\u793a\u903b\u8f91\u201c1\u201d\u3002<\/p>\n
3. \u4f20\u8f93\u8ddd\u79bb\u53d7\u9650\uff0c\u901a\u5e38\u572815\u7c73\u5de6\u53f3\u3002<\/p>\n
RS485\u662f\u4e00\u79cd\u591a\u70b9\u3001\u534a\u53cc\u5de5\u901a\u4fe1\u63a5\u53e3\uff0c\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u901a\u4fe1\u3002\u5b83\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\u6570\u636e\uff0c\u80fd\u591f\u5728\u5343\u7c73\u8303\u56f4\u5185\u8fdb\u884c\u901a\u4fe1\uff0c\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002RS485\u63a5\u53e3\u901a\u5e38\u4f7f\u7528\u4e24\u6761\u6570\u636e\u7ebf\uff08A\u548cB\uff09\u548c\u4e00\u4e2a\u5730\u7ebf\u3002<\/p>\n