{"id":98235,"date":"2024-10-12T16:28:23","date_gmt":"2024-10-12T08:28:23","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=98235"},"modified":"2024-10-12T16:28:32","modified_gmt":"2024-10-12T08:28:32","slug":"rdtsbwxclff","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/98235.html","title":{"rendered":"RS485\u591a\u53f0\u8bbe\u5907\u65e0\u7ebf\u4e32\u8054\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u3000\u3000<strong>RS485<\/strong>\u662f\u4e00\u79cd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u9886\u57df\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u652f\u6301\u591a\u70b9\u8fde\u63a5\u548c\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93\uff0c\u5177\u6709\u9ad8\u53ef\u9760\u6027\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002\u5728RS485\u591a\u53f0\u8bbe\u5907\u65e0\u7ebf\u4e32\u8054\u65b9\u6cd5\u4e2d\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u603b\u7ebf\u578b\u62d3\u6251\u7ed3\u6784<\/strong>\uff1aRS485\u901a\u4fe1\u901a\u5e38\u91c7\u7528\u603b\u7ebf\u578b\u62d3\u6251\u7ed3\u6784\uff0c\u5373\u6240\u6709\u8bbe\u5907\u8fde\u63a5\u5230\u540c\u4e00\u6761\u603b\u7ebf\u4e0a\u3002\u8fd9\u79cd\u7ed3\u6784\u53ef\u4ee5\u8282\u7701\u901a\u4fe1\u7ebf\u8def\uff0c\u5e76\u4fbf\u4e8e\u5b9e\u73b0\u591a\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u63a7\u5236\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4e3b\u4ece\u901a\u4fe1\u65b9\u5f0f<\/strong>\uff1a\u5728RS485\u7f51\u7edc\u4e2d\uff0c\u901a\u5e38\u91c7\u7528\u4e3b\u4ece\u901a\u4fe1\u65b9\u5f0f\uff0c\u5373\u4e00\u4e2a\u4e3b\u673a\u53ef\u4ee5\u4e0e\u591a\u4e2a\u4ece\u673a\u8fdb\u884c\u901a\u4fe1\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6548\u7387\uff0c\u8fd8\u80fd\u51cf\u5c11\u901a\u4fe1\u7ebf\u8def\u7684\u9700\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7ec8\u7aef\u7535\u963b<\/strong>\uff1a\u4e3a\u4e86\u9632\u6b62\u4fe1\u53f7\u53cd\u5c04\u548c\u5e72\u6270\uff0cRS485\u603b\u7ebf\u7684\u4e24\u7aef\u9700\u8981\u8fde\u63a5\u7ec8\u7aef\u7535\u963b\u3002\u7ec8\u7aef\u7535\u963b\u7684\u9009\u62e9\u548c\u5b89\u88c5\u4f4d\u7f6e\u5bf9\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5c4f\u853d\u53cc\u7ede\u7ebf<\/strong>\uff1a\u4e3a\u4e86\u51cf\u5c11\u4fe1\u53f7\u5e72\u6270\uff0cRS485\u901a\u4fe1\u5efa\u8bae\u4f7f\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u3002\u540c\u65f6\uff0c\u4fdd\u6301A\u548cB\u7ebf\u6210\u5bf9\u5e03\u7ebf\u4e14\u5c3d\u53ef\u80fd\u5e73\u884c\uff0c\u4ee5\u51cf\u5c11\u4fe1\u53f7\u635f\u8017\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5730\u5740\u8bbe\u7f6e<\/strong>\uff1a\u5728RS485\u603b\u7ebf\u8fde\u63a5\u65f6\uff0c\u6bcf\u4e2a\u8bbe\u5907\u90fd\u9700\u8981\u8bbe\u7f6e\u552f\u4e00\u7684\u5730\u5740\u3002\u7406\u8bba\u4e0a\uff0cRS485\u53ef\u4ee5\u8fde\u63a5\u591a\u8fbe250\u4e2a\u8bbe\u5907\uff0c\u4f46\u7531\u4e8e\u8f6e\u8be2\u673a\u5236\u7684\u539f\u56e0\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u4e00\u822c\u8fde\u63a520\u81f325\u4e2a\u8bbe\u5907\u4e3a\u5b9c\uff0c\u4ee5\u4fdd\u8bc1\u901a\u4fe1\u901f\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong>\uff1aRS485\u5177\u6709\u5f88\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u6570\u636e\u91c7\u96c6\u548c\u63a7\u5236\u5e94\u7528\u3002\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u63a5\u7ebf\u65b9\u5f0f\u548c\u4f7f\u7528\u7ec8\u7aef\u7535\u963b\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000RS485\u591a\u53f0\u8bbe\u5907\u65e0\u7ebf\u4e32\u8054\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u603b\u7ebf\u578b\u62d3\u6251\u7ed3\u6784\u3001\u4e3b\u4ece\u901a\u4fe1\u65b9\u5f0f\u3001\u7ec8\u7aef\u7535\u963b\u7684\u4f7f\u7528\u3001\u5c4f\u853d\u53cc\u7ede\u7ebf\u7684\u5e03\u7ebf\u4ee5\u53ca\u5408\u7406\u7684\u5730\u5740\u8bbe\u7f6e\u7b49\u3002\u8fd9\u4e9b\u63aa\u65bd\u80fd\u591f\u786e\u4fddRS485\u7cfb\u7edf\u5728\u591a\u8bbe\u5907\u4e32\u8054\u65f6\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 RS485\u65e0\u7ebf\u4e32\u8054\u6280\u672f\u7684\u6700\u65b0\u53d1\u5c55<\/h2>\n\n\n\n<p>\u3000\u3000RS485\u65e0\u7ebf\u4e32\u8054\u6280\u672f\u7684\u6700\u65b0\u53d1\u5c55\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u9ad8\u901f\u4f20\u8f93\u80fd\u529b<\/strong>\uff1aRS485X5\u4e00SC20\u6280\u672f\u652f\u6301\u6700\u9ad8\u901f\u7387\u4e3a5 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class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u81ea\u52a8\u5206\u914d\u5730\u5740<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u5e7f\u64ad\u547d\u4ee4\u6cd5<\/strong>\uff1a\u4e3b\u7ad9\u901a\u8fc7RS485\u603b\u7ebf\u53d1\u9001\u4e00\u4e2a\u5e7f\u64ad\u547d\u4ee4\uff0c\u8981\u6c42\u6240\u6709\u4ece\u7ad9\u8bbe\u5907\u56de\u5e94\u81ea\u5df1\u7684\u5730\u5740\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6613\u884c\uff0c\u4f46\u9700\u8981\u786e\u4fdd\u5730\u5740\u552f\u4e00\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u786c\u4ef6\u5e8f\u5217\u53f7\u6cd5<\/strong>\uff1a\u4ece\u673a\u57fa\u4e8e\u786c\u4ef6\u5e8f\u5217\u53f7\u5206\u65f6\u6ce8\u518c\u3002\u9009\u5b9a\u4ece\u673a\u786c\u4ef6\u5e8f\u5217\u53f7\u7684\u67d0\u4e2a\u5b57\u8282\u4f5c\u4e3a\u4ece\u673a\u5206\u65f6\u6ce8\u518c\u7684\u4f9d\u636e\uff0c\u4ece\u800c\u907f\u514d\u5730\u5740\u51b2\u7a81\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u624b\u52a8\u914d\u7f6e\u5730\u5740<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728RS485\u96c6\u7ebf\u5668\u4e0a\u8bbe\u7f6e\u4e0d\u540c\u7684\u8bbe\u5907\u5730\u5740\uff0c\u901a\u8fc7PLC\u53d1\u9001\u6307\u4ee4\u65f6\uff0c\u53ef\u4ee5\u6307\u5b9a\u76ee\u6807\u8bbe\u5907\u7684\u5730\u5740\uff0c\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u7684\u76ee\u6807\u5f15\u5bfc\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6307\u5b9a\u5730\u5740\u8303\u56f4\u4e0d\u4ec5\u53ef\u4ee5\u51cf\u5c11\u51b2\u7a81\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u7528\u6765\u5ffd\u7565\u5df2\u7ecf\u5206\u914d\u597d\u5730\u5740\u7684\u8bbe\u5907\uff0c\u4f8b\u5982\u4f7f\u75281~9\u7684\u5730\u5740\u8303\u56f4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u534f\u8bae\u652f\u6301<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u4f7f\u7528\u652f\u6301\u81ea\u52a8\u5730\u5740\u5206\u914d\u529f\u80fd\u7684\u5148\u8fdb\u8bbe\u5907\uff0c\u7b80\u5316\u914d\u7f6e\u8fc7\u7a0b\u3002\u8fd9\u4e9b\u8bbe\u5907\u901a\u5e38\u5177\u5907\u81ea\u52a8\u68c0\u6d4b\u548c\u5206\u914d\u5730\u5740\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u786e\u4fdd\u6bcf\u6761\u901a\u8baf\u547d\u4ee4\u90fd\u5305\u542b\u6e90\u5730\u5740\u548c\u76ee\u7684\u5730\u5740\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u51fa\u9519\u7684\u53ef\u80fd\u6027\uff0c\u5e76\u4e14\u901a\u8baf\u66f4\u52a0\u7b80\u6d01\u548c\u7edf\u4e00\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u7cfb\u7edf\u8bbe\u8ba1\u4e0e\u7ba1\u7406<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728\u7cfb\u7edf\u8bbe\u8ba1\u9636\u6bb5\uff0c\u660e\u786e\u6bcf\u4e2a\u4ece\u8282\u70b9\u7684\u5730\u5740\u5206\u914d\uff0c\u786e\u4fdd\u5730\u5740\u7684\u552f\u4e00\u6027\u548c\u6709\u6548\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u91c7\u7528\u5dee\u5206\u4fe1\u53f7\u8d1f\u903b\u8f91\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c+2V\uff5e+6V\u8868\u793a&#8221;0&#8243;\uff0c-6V\uff5e-2V\u8868\u793a&#8221;1&#8243;\uff0c\u786e\u4fdd\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 RS485\u901a\u4fe1\u4e2d\u7684\u4fe1\u53f7\u5e72\u6270\u6709\u54ea\u4e9b\u5e38\u89c1\u7c7b\u578b<\/h2>\n\n\n\n<p>\u3000\u3000RS485\u901a\u4fe1\u4e2d\u7684\u4fe1\u53f7\u5e72\u6270\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd\u5e38\u89c1\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5dee\u6a21\u5e72\u6270<\/strong>\uff1a\u8fd9\u79cd\u5e72\u6270\u5728\u4e24\u6839\u4fe1\u53f7\u7ebf\u4e4b\u95f4\u4f20\u8f93\uff0c\u5c5e\u4e8e\u5bf9\u79f0\u6027\u5e72\u6270\u3002\u5dee\u6a21\u5e72\u6270\u53ef\u4ee5\u901a\u8fc7\u5728\u7535\u8def\u4e2d\u589e\u52a0\u4e00\u4e2a\u504f\u503c\u7535\u963b\u5e76\u91c7\u7528\u53cc\u7ede\u7ebf\u6765\u6d88\u9664\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5171\u6a21\u5e72\u6270<\/strong>\uff1a\u8fd9\u79cd\u5e72\u6270\u662f\u5728\u4fe1\u53f7\u7ebf\u4e0e\u5730\u4e4b\u95f4\u4f20\u8f93\uff0c\u901a\u5e38\u7531\u5916\u90e8\u7535\u78c1\u573a\u5f15\u8d77\u3002\u91c7\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u6709\u52a9\u4e8e\u51cf\u5c11\u548c\u6d88\u9664\u5171\u6a21\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5730\u7ebf\u5e72\u6270<\/strong>\uff1a\u5730\u7ebf\u5e72\u6270\u662f\u7531\u4e8e\u5730\u7ebf\u4e0d\u7a33\u5b9a\u6216\u63a5\u5730\u4e0d\u826f\u5f15\u8d77\u7684\u3002\u5728RS485\u603b\u7ebf\u7684\u4e24\u7aef\u4f7f\u7528\u9694\u79bb\u5668\u5bf9\u5730\u7ebf\u8fdb\u884c\u9694\u79bb\u53ef\u4ee5\u6709\u6548\u6d88\u9664\u5730\u7ebf\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u53cd\u5c04<\/strong>\uff1a\u4fe1\u53f7\u53cd\u5c04\u901a\u5e38\u7531\u963b\u6297\u4e0d\u8fde\u7eed\u6216\u963b\u6297\u4e0d\u5339\u914d\u5f15\u8d77\u3002\u901a\u8fc7\u5728\u603b\u7ebf\u4e24\u7aef\u52a0\u5165\u7535\u963b\uff0c\u4f7f\u603b\u7ebf\u7684\u963b\u6297\u589e\u52a0\uff0c\u53ef\u4ee5\u964d\u4f4e\u4fe1\u53f7\u53cd\u5c04\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u566a\u58f0\u5e72\u6270<\/strong>\uff1a\u566a\u58f0\u5e72\u6270\u53ef\u4ee5\u901a\u8fc7\u5728\u53d1\u9001\u7aefDE\u5f15\u811a\u52a0\u4e00\u4e2a\u5c0f\u7535\u5bb9\u6ee4\u9664\u566a\u58f0\u6765\u51cf\u5c11\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u6709\u6548\u51cf\u5c11\u8fd9\u4e9b\u5e72\u6270\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4f7f\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf<\/strong>\uff1a\u5c4f\u853d\u53cc\u7ede\u7ebf\u6709\u52a9\u4e8e\u51cf\u5c11\u548c\u6d88\u9664\u4e24\u6839485\u901a\u4fe1\u7ebf\u4e4b\u95f4\u4ea7\u751f\u7684\u5206\u5e03\u7535\u5bb9\u4ee5\u53ca\u6765\u81ea\u4e8e\u901a\u8baf\u7ebf\u5468\u56f4\u4ea7\u751f\u7684\u5171\u6a21\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a5\u5730\u5904\u7406<\/strong>\uff1a\u786e\u4fddRS485\u7684\u53cc\u7ede\u7ebf\u5c4f\u853d\u5c42\u826f\u597d\u63a5\u5730\uff0c\u5e76\u68c0\u67e5RS485\u901a\u4fe1\u7ebf\u9644\u8fd1\u662f\u5426\u6709\u5f3a\u7535\u78c1\u5e72\u6270\uff0c\u9700\u8981\u52a0\u9694\u79bb\u4fdd\u62a4\u63aa\u65bd\u6216\u8005\u8fdc\u79bb\u5e72\u6270\u6e90\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u589e\u52a0\u7ec8\u7aef\u7535\u963b<\/strong>\uff1a\u5728\u603b\u7ebf\u4e24\u7aef\u8fde\u63a5120\u6b27\u59c6\u7684\u7ec8\u7aef\u7535\u963b\uff0c\u53ef\u4ee5\u6291\u5236\u4fe1\u53f7\u53cd\u5c04\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f7f\u7528\u9694\u79bb\u5668<\/strong>\uff1a\u5728RS485\u603b\u7ebf\u7684\u4e24\u7aef\u5206\u522b\u4f7f\u7528\u9694\u79bb\u5668\u5bf9\u5730\u7ebf\u8fdb\u884c\u9694\u79bb\uff0c\u4ee5\u6d88\u9664\u5730\u7ebf\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u5728RS485\u7f51\u7edc\u4e2d\uff0c\u5982\u4f55\u9009\u62e9\u548c\u914d\u7f6e\u7ec8\u7aef\u7535\u963b\u4ee5\u4f18\u5316\u7cfb\u7edf\u6027\u80fd?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728RS485\u7f51\u7edc\u4e2d\uff0c\u9009\u62e9\u548c\u914d\u7f6e\u7ec8\u7aef\u7535\u963b\u662f\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\u7684\u5173\u952e\u6b65\u9aa4\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u64cd\u4f5c\u6307\u5357\uff1a<\/p>\n\n\n\n<p>\u3000\u3000RS485\u7f51\u7edc\u901a\u5e38\u4f7f\u7528\u7279\u6027\u963b\u6297\u4e3a120\u03a9\u7684\u53cc\u7ede\u7ebf\uff0c\u56e0\u6b64\u7ec8\u7aef\u7535\u963b\u5e94\u8bbe\u7f6e\u4e3a120\u03a9\uff0c\u4ee5\u5339\u914d\u901a\u4fe1\u7ebf\u7684\u7279\u6027\u963b\u6297\uff0c\u9632\u6b62\u4fe1\u53f7\u53cd\u5c04\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728RS485\u7f51\u7edc\u7684\u9996\u5c3e\u4e24\u7aef\u5404\u589e\u52a0\u4e00\u4e2a120\u03a9\u7684\u7ec8\u7aef\u7535\u963b\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e0d\u4f1a\u56e0\u4e3a\u963b\u6297\u4e0d\u5339\u914d\u800c\u4ea7\u751f\u53cd\u5c04\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u5b8c\u6574\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u8bbe\u8ba1RS-485\u603b\u7ebf\u7ec4\u6210\u7684\u7f51\u7edc\u914d\u7f6e\u65f6\uff0c\u9664\u4e86\u8003\u8651\u7eaf\u963b\u6027\u8d1f\u8f7d\u548c\u4fe1\u53f7\u8870\u51cf\u5916\uff0c\u8fd8\u9700\u8981\u8003\u8651\u566a\u58f0\u5bb9\u9650(Noise Margin)\u3002\u566a\u58f0\u5bb9\u9650\u662f\u6307\u5728\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u80fd\u591f\u5bb9\u5fcd\u7684\u6700\u5927\u566a\u58f0\u6c34\u5e73\uff0c\u4ee5\u786e\u4fdd\u4fe1\u53f7\u7684\u53ef\u9760\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u4e00\u4e9b\u590d\u6742\u7684\u5e94\u7528\u573a\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528\u81ea\u52a8\u914d\u7f6e\u7535\u8def\u6765\u52a8\u6001\u8c03\u6574\u7ec8\u7aef\u7535\u963b\u7684\u503c\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5de5\u4f5c\u73af\u5883\u548c\u8d1f\u8f7d\u6761\u4ef6\u3002\u8fd9\u79cd\u81ea\u52a8\u914d\u7f6e\u7535\u8def\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u4fe1\u53f7\u53cd\u5c04\u60c5\u51b5\u5b9e\u65f6\u8c03\u6574\u7535\u963b\u503c\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5bf9\u4e8e\u591a\u63a5\u6536\u5668\u7684RS485\u7f51\u7edc\uff0c\u6b63\u786e\u7684\u8fde\u63a5\u65b9\u5f0f\u4e5f\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u786e\u4fdd\u6bcf\u4e2a\u63a5\u6536\u5668\u90fd\u6b63\u786e\u8fde\u63a5\u5230\u603b\u7ebf\u4e0a\uff0c\u5e76\u4e14\u6bcf\u4e2a\u63a5\u6536\u5668\u7684\u8f93\u5165\u963b\u6297\u4e0e\u7ec8\u7aef\u7535\u963b\u5339\u914d\uff0c\u4ee5\u907f\u514d\u4fe1\u53f7\u5e72\u6270\u548c\u53cd\u5c04\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 RS485\u65e0\u7ebf\u4e32\u8054\u65b9\u6cd5\u4e2d\uff0c\u54ea\u4e9b\u521b\u65b0\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728RS485\u65e0\u7ebf\u4e32\u8054\u65b9\u6cd5\u4e2d\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u7684\u521b\u65b0\u6280\u672f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul 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