{"id":49047,"date":"2026-07-25T19:58:38","date_gmt":"2026-07-25T11:58:38","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=49047"},"modified":"2026-07-25T19:58:43","modified_gmt":"2026-07-25T11:58:43","slug":"8%e8%b7%afio%e8%bd%acrs485%e6%a8%a1%e5%9d%97%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/49047.html","title":{"rendered":"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>8\u8defIO\u8f6c485\u6a21\u5757 \u4f7f\u7528\u8bf4\u660e<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u5957\u8f6f\u4ef6\uff1a\u5b57\u7b26\u4e32\u8df3\u52a8<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>1. \u4ea7\u54c1\u6982\u8ff0<\/strong><strong><\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u4ea7\u54c1\u4e3a8\u8def\u5f00\u5173\u91cfIO\u8f6cRS485\u901a\u4fe1\u6a21\u5757\uff0c\u53ef\u7528\u4e8e\u68c0\u6d4b8\u8def\u5f00\u5173\u91cf\u8f93\u5165\u72b6\u6001\uff0c\u5e76\u901a\u8fc7RS485\u603b\u7ebf\u5411\u4e0a\u4f4d\u673a\u4e3b\u52a8\u4e0a\u62a5\u6216\u63a5\u6536\u63a7\u5236\u547d\u4ee4\u3002\u914d\u5957PC\u7aef\u914d\u7f6e\u8f6f\u4ef6\u4e3a\u5b57\u7b26\u4e32\u8df3\u52a8\uff08\u5de5\u7a0b\u6587\u4ef6\u540e\u7f00\u4e3a.xk3\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u8981\u7528\u9014\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f00\u5173\u91cf\u8f93\u5165\u68c0\u6d4b\u4e0e\u72b6\u6001\u53d8\u5316\u4e0a\u62a5<\/li>\n\n\n\n<li>\u6839\u636e\u8f93\u5165\u4e8b\u4ef6\u81ea\u52a8\u53d1\u9001\u81ea\u5b9a\u4e4916\u8fdb\u5236\u62a5\u6587<\/li>\n\n\n\n<li>\u901a\u8fc7RS485\u4e0ePLC\u3001\u89e6\u6478\u5c4f\u3001\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5bf9\u63a5<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>2. \u786c\u4ef6\u63a5\u7ebf\uff08\u901a\u7528\u53c2\u8003\uff09<\/strong><strong><\/strong><\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u7aef\u5b50<\/td><td>\u8bf4\u660e<\/td><\/tr><tr><td>\u7535\u6e90<\/td><td>\u6309\u6a21\u5757\u6807\u8bc6\u63a5\u5165DC\u7535\u6e90\uff0cV=12V+,G=12V-<\/td><\/tr><tr><td>RS485 A\/B<\/td><td>\u63a5\u5165RS485\u603b\u7ebf\uff0cA\u63a5A\u3001B\u63a5B\uff0c\u4e0d\u8981\u63a5\u53cd<\/td><\/tr><tr><td>\u8f93\u51651~\u8f93\u51658<\/td><td>\u5f00\u5173\u91cf\u8f93\u5165\uff0c\u5e72\u63a5\u70b9\u8f93\u5165<\/td><\/tr><tr><td>\u516c\u5171\u7aef\/COM<\/td><td>\u516c\u5171\u7aef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fdc\u8ddd\u79bb\u6216\u5e72\u6270\u8f83\u5927\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u5e76\u5355\u7aef\u63a5\u5730\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>3. \u8f6f\u4ef6\u4e3b\u754c\u9762<\/strong><strong><\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u542f\u52a8\u5b57\u7b26\u4e32\u8df3\u52a8\u540e\uff0c\u754c\u9762\u4e3b\u8981\u5305\u542b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u83dc\u5355\u680f\uff1a\u6587\u4ef6\u3001\u7f16\u8f91\u3001\u8bbe\u7f6e\u3001\u5de5\u5177\u3001\u901a\u4fe1\u3001\u5e2e\u52a9<\/li>\n\n\n\n<li>\u5de5\u5177\u680f\uff1a\u6253\u5f00\u3001\u4fdd\u5b58\u3001\u53e6\u5b58\u3001\u8bbe\u7f6e\u3001\u6dfb\u52a0\u6307\u4ee4\u3001\u5220\u9664<\/li>\n\n\n\n<li>\u901a\u4fe1\u533a\uff1aCOM\u53e3\u9009\u62e9\u3001\u6a21\u5757\u5730\u5740\u9009\u62e9\u3001\u8bfb\u53d6\u3001\u5199\u5165<\/li>\n\n\n\n<li>\u89c4\u5219\u5217\u8868\u533a\uff1a\u663e\u793a\u5df2\u914d\u7f6e\u7684\u201c\u5982\u679c&#8230; -> &#8230;\u201d\u89c4\u5219<\/li>\n\n\n\n<li>\u72b6\u6001\u680f\uff1a\u663e\u793a\u5f53\u524d\u8fde\u63a5\u72b6\u6001\u4e0e\u7a0b\u5e8f\u5927\u5c0f\uff08\u5b57\u8282\u6570\uff09<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>4. \u901a\u4fe1\u8bbe\u7f6e<\/strong><strong><\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u70b9\u51fb\u5de5\u5177\u680f\u201c\u8bbe\u7f6e\u201d\u6253\u5f00\u201c\u7aef\u53e3\u8bbe\u7f6e\u201d\u5bf9\u8bdd\u6846\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4.1 \u4e32\u53e3\u8fde\u63a5<\/strong><strong><\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e32\u53e3\u53f7\uff1a\u9009\u62e9PC\u4e0e\u6a21\u5757\u8fde\u63a5\u7684COM\u53e3<\/li>\n\n\n\n<li>\u6ce2\u7279\u7387\uff1a\u9ed8\u8ba49600\uff0c\u9700\u4e0e\u6a21\u5757\u5b9e\u9645\u6ce2\u7279\u7387\u4e00\u81f4<\/li>\n\n\n\n<li>\u81ea\u52a8\u6253\u5f00\u4e32\u53e3\uff1a\u52fe\u9009\u540e\u542f\u52a8\u8f6f\u4ef6\u65f6\u81ea\u52a8\u6253\u5f00\u4e32\u53e3<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>5. \u89c4\u5219\u914d\u7f6e<\/strong><strong><\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8f6f\u4ef6\u91c7\u7528\u4e8b\u4ef6\u9a71\u52a8\u903b\u8f91\uff0c\u57fa\u672c\u5f62\u5f0f\u4e3a\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5982\u679c [\u8f93\u5165\u6761\u4ef6] \u6210\u7acb\uff0c\u5219\u6267\u884c [\u8f93\u51fa\u7ed3\u679c]<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5.1 \u6dfb\u52a0\u89c4\u5219<\/strong><strong><\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u70b9\u51fb\u5de5\u5177\u680f\u201c\u6dfb\u52a0\u6307\u4ee4\u201d\uff0c\u6253\u5f00\u201c\u7f16\u8f91\u547d\u4ee4\u201d\u5bf9\u8bdd\u6846\u3002<\/li>\n\n\n\n<li>\u5148\u9009\u62e9\u201c\u8f93\u5165\u6761\u4ef6\u201d\u9875\u7b7e\uff0c\u914d\u7f6e\u89e6\u53d1\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>\u518d\u9009\u62e9\u201c\u8f93\u51fa\u7ed3\u679c\u201d\u9875\u7b7e\uff0c\u914d\u7f6e\u6267\u884c\u52a8\u4f5c\u3002<\/li>\n\n\n\n<li>\u70b9\u51fb\u201c\u786e\u8ba4\u201d\u4fdd\u5b58\u672c\u6761\u89c4\u5219\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5.2 \u8f93\u5165\u6761\u4ef6<\/strong><strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u53c2\u6570<\/td><td>\u8bf4\u660e<\/td><\/tr><tr><td>\u7c7b\u578b<\/td><td>\u9009\u62e9\u201c\u5916\u90e8\u8f93\u5165\u201d\uff08\u6216\u5176\u4ed6\u53ef\u7528\u7c7b\u578b\uff09<\/td><\/tr><tr><td>\u53c2\u65701<\/td><td>\u9009\u62e9\u8f93\u5165\u901a\u9053\uff0c\u5982\u201c\u8f93\u51651\u201d~\u201c\u8f93\u51658\u201d<\/td><\/tr><tr><td>\u53c2\u65702<\/td><td>\u9009\u62e9\u89e6\u53d1\u65b9\u5f0f\uff0c\u89c1\u4e0b\u8868<\/td><\/tr><tr><td>\u4e0e\u4e0a\u6761\u903b\u8f91\u6216<\/td><td>\u52fe\u9009\u540e\uff0c\u672c\u6761\u6761\u4ef6\u4e0e\u4e0a\u4e00\u6761\u6761\u4ef6\u4e3a\u201c\u6216\u201d\u5173\u7cfb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e6\u53d1\u65b9\u5f0f\u8bf4\u660e\uff08\u6309\u8f6f\u4ef6\u4e0b\u62c9\u987a\u5e8f\uff09\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u89e6\u53d1\u65b9\u5f0f<\/td><td>\u542b\u4e49<\/td><\/tr><tr><td>\u65ad\u5f00\u5230\u95ed\u5408<\/td><td>\u4e0a\u5347\u6cbf\uff0c\u8f93\u5165\u4ece\u65ad\u5f00\u53d8\u4e3a\u95ed\u5408\u65f6\u89e6\u53d1\u4e00\u6b21<\/td><\/tr><tr><td>\u65ad\u5f00<\/td><td>\u8f93\u5165\u6301\u7eed\u5904\u4e8e\u65ad\u5f00\u72b6\u6001<\/td><\/tr><tr><td>\u95ed\u5408<\/td><td>\u8f93\u5165\u6301\u7eed\u5904\u4e8e\u95ed\u5408\u72b6\u6001<\/td><\/tr><tr><td>\u95ed\u5408\u5230\u65ad\u5f00<\/td><td>\u4e0b\u964d\u6cbf\uff0c\u8f93\u5165\u4ece\u95ed\u5408\u53d8\u4e3a\u65ad\u5f00\u65f6\u89e6\u53d1\u4e00\u6b21<\/td><\/tr><tr><td>\u72b6\u6001\u7ffb\u8f6c<\/td><td>\u8f93\u5165\u72b6\u6001\u53d1\u751f\u4efb\u610f\u53d8\u5316\u65f6\u89e6\u53d1<\/td><\/tr><tr><td>\u5355\u51fb<\/td><td>\u5355\u6b21\u77ed\u6309\u540e\u89e6\u53d1<\/td><\/tr><tr><td>\u53cc\u51fb<\/td><td>\u8fde\u7eed\u4e24\u6b21\u77ed\u6309\u540e\u89e6\u53d1<\/td><\/tr><tr><td>\u957f\u6309<\/td><td>\u6309\u4f4f\u8d85\u8fc7\u8bbe\u5b9a\u65f6\u95f4\u540e\u89e6\u53d1<\/td><\/tr><tr><td>\u8fde\u7eed\u6309\u4e0b\u591a\u6b21<\/td><td>\u8fde\u7eed\u6309\u538b\u591a\u6b21\u540e\u89e6\u53d1\uff0c\u5185\u90e8\u53d8\u91cf1\u8bb0\u5f55\u6b21\u6570<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u65703\u5728\u90e8\u5206\u89e6\u53d1\u65b9\u5f0f\u4e0b\u7528\u4e8e\u8bbe\u7f6e\u9608\u503c\u6216\u6b21\u6570\uff0c\u5177\u4f53\u4ee5\u8f6f\u4ef6\u63d0\u793a\u4e3a\u51c6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5.3 \u8f93\u51fa\u7ed3\u679c<\/strong><strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u53c2\u6570<\/td><td>\u8bf4\u660e<\/td><\/tr><tr><td>\u7c7b\u578b<\/td><td>\u9009\u62e9\u201c\u53d1\u900116\u8fdb\u5236\u6570\u636e\u201d\uff08\u6216\u5176\u4ed6\u53ef\u7528\u8f93\u51fa\u7c7b\u578b\uff09<\/td><\/tr><tr><td>\u53c2\u65701<\/td><td>\u9009\u62e9\u6570\u636e\u53e3\uff0c\u5982\u201c\u6570\u636e\u53e32\u201d\uff08\u901a\u5e38\u5bf9\u5e94RS485\u4e32\u53e3\uff09<\/td><\/tr><tr><td>\u53c2\u65702<\/td><td>\u9009\u62e9\u6570\u636e\u6765\u6e90\uff0c\u5982\u201c\u53d1\u9001\u53c2\u65703\u5185\u5bb9\u201d<\/td><\/tr><tr><td>\u53c2\u65703<\/td><td>\u586b\u5199\u8981\u53d1\u9001\u768416\u8fdb\u5236\u6570\u636e\uff0c\u591a\u4e2a\u5b57\u8282\u7528\u7a7a\u683c\u5206\u9694<\/td><\/tr><tr><td>\u6761\u4ef6\u4e0d\u6ee1\u8db3\u8f93\u51fa<\/td><td>\u52fe\u9009\u540e\uff0c\u5f53\u8f93\u5165\u6761\u4ef6\u4e0d\u6210\u7acb\u65f6\u6267\u884c\u672c\u8f93\u51fa<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">16\u8fdb\u5236\u6570\u636e\u683c\u5f0f\u793a\u4f8b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">11 22 33<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u8fde\u7eed\u53d1\u90013\u4e2a\u5b57\u8282\uff1a0x11\u30010x22\u30010x33\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>6. \u793a\u4f8b\uff1a\u8f93\u5165\u72b6\u6001\u53d8\u5316\u89e6\u53d1\u53d1\u9001\u62a5\u6587<\/strong><strong><\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u56fe\u4e2d\u6240\u793a\u793a\u4f8b\u5b9e\u73b0\u4e86\u4ee5\u4e0b\u903b\u8f91\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89c4\u52191\uff1a\u5982\u679c \u8f93\u51651 \u65ad\u5f00\u5230\u95ed\u5408 \u2192<strong> \u6570\u636e\u53e32<\/strong> \u53d1\u900116\u8fdb\u5236\u6570\u636e 11 22 33<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89c4\u52192\uff1a\u5982\u679c \u8f93\u51651 \u95ed\u5408\u5230\u65ad\u5f00 \u2192<strong> \u6570\u636e\u53e32<\/strong> \u53d1\u900116\u8fdb\u5236\u6570\u636e 22 33 44<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u914d\u7f6e\u6b65\u9aa4<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u70b9\u51fb\u201c\u6dfb\u52a0\u6307\u4ee4\u201d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"d6e6d7\" data-has-transparency=\"false\" style=\"--dominant-color: #d6e6d7;\" loading=\"lazy\" decoding=\"async\" width=\"1619\" height=\"897\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526\"  class=\"wp-image-49044 not-transparent\" srcset=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp 1619w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_800,h_443 800w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526 950w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_600,h_332 600w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_768,h_426 768w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_1536,h_851 1536w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191215532.webp?x-oss-process=image\/resize,m_lfit,w_18,h_10 18w\" sizes=\"auto, (max-width: 1619px) 100vw, 1619px\" \/ loading=\"lazy\" title=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe\" alt=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u9009\u62e9\u201c\u8f93\u5165\u6761\u4ef6\u201d\uff1a\u7c7b\u578b=\u5916\u90e8\u8f93\u5165\uff0c\u53c2\u65701=\u8f93\u51651\uff0c\u53c2\u65702=\u65ad\u5f00\u5230\u95ed\u5408\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"d2e4d8\" data-has-transparency=\"false\" style=\"--dominant-color: #d2e4d8;\" loading=\"lazy\" decoding=\"async\" width=\"1619\" height=\"897\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526\"  class=\"wp-image-49045 not-transparent\" srcset=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp 1619w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_800,h_443 800w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526 950w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_600,h_332 600w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_768,h_426 768w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_1536,h_851 1536w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191223165.webp?x-oss-process=image\/resize,m_lfit,w_18,h_10 18w\" sizes=\"auto, (max-width: 1619px) 100vw, 1619px\" \/ loading=\"lazy\" title=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe1\" alt=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe1\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u9009\u62e9\u201c\u8f93\u51fa\u7ed3\u679c\u201d\uff1a\u7c7b\u578b=\u53d1\u900116\u8fdb\u5236\u6570\u636e\uff0c\u53c2\u65701=<strong>\u6570\u636e\u53e32<\/strong>\uff0c\u53c2\u65702=\u53d1\u9001\u53c2\u65703\u5185\u5bb9\uff0c\u53c2\u65703=11 22 33\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u70b9\u51fb\u201c\u786e\u8ba4\u201d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u6b21\u6dfb\u52a0\u4e00\u6761\u6307\u4ee4\uff0c\u8f93\u5165\u6761\u4ef6\u9009\u62e9\u201c\u8f93\u51651\u3001\u95ed\u5408\u5230\u65ad\u5f00\u201d\uff0c\u8f93\u51fa\u53c2\u65703\u586b\u519922 33 44\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"cfe0d8\" data-has-transparency=\"false\" style=\"--dominant-color: #cfe0d8;\" loading=\"lazy\" decoding=\"async\" width=\"1619\" height=\"896\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526\"  class=\"wp-image-49046 not-transparent\" srcset=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp 1619w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_800,h_443 800w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_950,h_526 950w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_600,h_332 600w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_768,h_425 768w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_1536,h_850 1536w, https:\/\/image.modbus.cn\/wp-content\/uploads\/2026\/07\/20260725191232891.webp?x-oss-process=image\/resize,m_lfit,w_18,h_10 18w\" sizes=\"auto, (max-width: 1619px) 100vw, 1619px\" \/ loading=\"lazy\" title=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe2\" alt=\"8\u8defIO\u8f6cRS485\u6a21\u5757\u4f7f\u7528\u63d2\u56fe2\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u70b9\u51fb\u5de5\u5177\u680f\u201c\u5199\u5165\u201d\uff0c\u5c06\u89c4\u5219\u4e0b\u8f7d\u5230\u6a21\u5757\u3002(\u9ed8\u8ba4\u5730\u5740\uff1a01\u6216\u800500\uff09<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>7. \u4e0b\u8f7d\u4e0e\u8bfb\u53d6<\/strong><strong><\/strong><\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u6309\u94ae<\/td><td>\u529f\u80fd<\/td><\/tr><tr><td>\u8bfb\u53d6<\/td><td>\u4ece\u6a21\u5757\u8bfb\u53d6\u5f53\u524d\u5df2\u4fdd\u5b58\u7684\u89c4\u5219\u5230\u8f6f\u4ef6<\/td><\/tr><tr><td>\u5199\u5165<\/td><td>\u5c06\u5f53\u524d\u7f16\u8f91\u7684\u89c4\u5219\u7f16\u8bd1\u540e\u4e0b\u53d1\u5230\u6a21\u5757<\/td><\/tr><tr><td>\u4fdd\u5b58\/\u53e6\u5b58<\/td><td>\u5c06\u5de5\u7a0b\u4fdd\u5b58\u4e3a.xk3\u6587\u4ef6<\/td><\/tr><tr><td>\u6253\u5f00<\/td><td>\u8f7d\u5165\u5df2\u6709\u7684.xk3\u5de5\u7a0b\u6587\u4ef6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u6539\u89c4\u5219\u540e\u5fc5\u987b\u70b9\u51fb\u201c\u5199\u5165\u201d\u624d\u80fd\u751f\u6548\uff0c\u4ec5\u4fdd\u5b58\u5de5\u7a0b\u6587\u4ef6\u4e0d\u4f1a\u66f4\u65b0\u6a21\u5757\u5185\u90e8\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>8. \u8c03\u8bd5\u6280\u5de7<\/strong><strong><\/strong><\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e32\u53e3\u52a9\u624b\u6216Modbus\u8c03\u8bd5\u5de5\u5177\u8fde\u63a5\u6a21\u5757\uff0c\u89c2\u5bdf\u89e6\u53d1\u65f6\u53d1\u9001\u7684\u62a5\u6587\u662f\u5426\u6b63\u786e\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8f93\u5165\u65e0\u54cd\u5e94\uff0c\u5148\u68c0\u67e5\u8f93\u5165\u901a\u9053\u53f7\u3001\u89e6\u53d1\u65b9\u5f0f\uff08\u7535\u5e73\/\u8fb9\u6cbf\uff09\u662f\u5426\u9009\u62e9\u6b63\u786e\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u6536\u5230\u7684\u62a5\u6587\u4e71\u7801\u6216\u8d85\u65f6\uff0c\u68c0\u67e5\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u662f\u5426\u4e0e\u63a5\u6536\u7aef\u4e00\u81f4\u3002<\/li>\n\n\n\n<li>\u7a0b\u5e8f\u5927\u5c0f\u663e\u793a\u5f53\u524d\u89c4\u5219\u7f16\u8bd1\u540e\u7684\u5b57\u8282\u6570\uff0c\u6ce8\u610f\u4e0d\u8981\u8d85\u8fc7\u6a21\u5757\u5b58\u50a8\u5bb9\u91cf\u3002<\/li>\n\n\n\n<li>\u591a\u89c4\u5219\u540c\u65f6\u5b58\u5728\u65f6\uff0c\u6ce8\u610f\u201c\u4e0e\u4e0a\u6761\u903b\u8f91\u6216\u201d\u7684\u7ec4\u5408\u903b\u8f91\uff0c\u907f\u514d\u6761\u4ef6\u51b2\u7a81\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>9. \u6ce8\u610f\u4e8b\u9879<\/strong><strong><\/strong><\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u914d\u7f6e\u524d\u786e\u8ba4PC\u4e0e\u6a21\u5757\u901a\u4fe1\u6b63\u5e38\uff0c\u4e32\u53e3\u6216\u7f51\u53e3\u53c2\u6570\u5339\u914d\u3002<\/li>\n\n\n\n<li>RS485\u603b\u7ebfA\u3001B\u7ebf\u4e0d\u8981\u63a5\u53cd\uff0c\u591a\u4e2a\u6a21\u5757\u5e76\u8054\u65f6\u6ce8\u610f\u7ec8\u7aef\u7535\u963b\u3002<\/li>\n\n\n\n<li>\u6d89\u53ca\u7ee7\u7535\u5668\u8f93\u51fa\u65f6\uff0c\u8d1f\u8f7d\u7535\u6d41\u3001\u7535\u538b\u4e0d\u8981\u8d85\u8fc7\u6a21\u5757\u989d\u5b9a\u503c\u3002<\/li>\n\n\n\n<li>\u4fee\u6539\u5b8c\u6210\u540e\u53ca\u65f6\u4fdd\u5b58\u5de5\u7a0b\u6587\u4ef6\u5e76\u5199\u5165\u6a21\u5757\u3002<\/li>\n\n\n\n<li>\u5177\u4f53\u529f\u80fd\u7801\u3001\u5bc4\u5b58\u5668\u5730\u5740\u3001\u901a\u4fe1\u534f\u8bae\u7ec6\u8282\u8bf7\u4ee5\u5382\u5bb6\u6587\u6863\u4e3a\u51c6\u3002<\/li>\n<\/ol>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>10. \u5feb\u901f\u53c2\u8003<\/strong><strong><\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u5e38\u7528\u89e6\u53d1\u65b9\u5f0f\u9009\u62e9<\/strong><strong><\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u68c0\u6d4b\u6309\u94ae\u6309\u4e0b\uff1a\u65ad\u5f00\u5230\u95ed\u5408<\/li>\n\n\n\n<li>\u68c0\u6d4b\u6309\u94ae\u91ca\u653e\uff1a\u95ed\u5408\u5230\u65ad\u5f00<\/li>\n\n\n\n<li>\u68c0\u6d4b\u5f00\u5173\u72b6\u6001\uff1a\u95ed\u5408 \/ \u65ad\u5f00<\/li>\n\n\n\n<li>\u68c0\u6d4b\u4efb\u610f\u53d8\u5316\uff1a\u72b6\u6001\u7ffb\u8f6c<\/li>\n<\/ul>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>8\u8defIO\u8f6c485\u6a21\u5757 \u4f7f\u7528\u8bf4\u660e \u914d\u5957\u8f6f\u4ef6\uff1a\u5b57\u7b26\u4e32\u8df3\u52a8 1. &#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[2089],"tags":[240,239],"class_list":["post-49047","post","type-post","status-publish","format-standard","hentry","category-shuomingshu","tag-rs485","tag-239"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/49047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=49047"}],"version-history":[{"count":1,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/49047\/revisions"}],"predecessor-version":[{"id":49051,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/49047\/revisions\/49051"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=49047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=49047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=49047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}