{"id":10463,"date":"2022-07-31T21:09:15","date_gmt":"2022-07-31T13:09:15","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=10463"},"modified":"2026-07-01T00:02:20","modified_gmt":"2026-06-30T16:02:20","slug":"jian-da-ren-ke-bi-gua-wang-zi-ke-485-xing-wen-shi-du-bian-song-qi-xie-yi-shuo-ming","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/10463.html","title":{"rendered":"\u5efa\u5927\u4ec1\u79d1\u58c1\u6302\u738b\u5b57\u58f3485\u578b\u6e29\u6e7f\u5ea6\u53d8\u9001\u5668\u534f\u8bae\u8bf4\u660e"},"content":{"rendered":"
<\/figure>\n\n\n\n

\u4ea7\u54c1\u6982\u8ff0<\/h2>\n\n\n\n

\u8be5\u4ea7\u54c1\u4e3a\u58c1\u6302\u9ad8\u9632\u62a4\u7b49\u7ea7\u5916\u58f3\uff0c\u9632\u62a4\u7b49\u7ea7 IP65\uff0c\u9632\u96e8\u96ea\u4e14\u900f\u6c14\u6027\u597d\u3002\u7535\u8def\u91c7\u7528\u7f8e\u56fd\u8fdb\u53e3\u5de5\u4e1a\u7ea7\u5fae\u5904\u7406\u5668\u82af\u7247\u3001\u8fdb\u53e3\u9ad8\u7cbe\u5ea6\u6e29\u5ea6\u4f20\u611f\u5668\uff0c\u786e\u4fdd\u4ea7\u54c1\u4f18\u5f02\u7684\u53ef\u9760\u6027\u3001\u9ad8\u7cbe\u5ea6\u548c\u4e92\u6362\u6027\u3002
\u672c\u4ea7\u54c1\u91c7\u7528\u9897\u7c92\u70e7\u7ed3\u63a2\u5934\u62a4\u5957\uff0c\u63a2\u5934\u4e0e\u58f3\u4f53\u76f4\u63a5\u76f8\u8fde\u5916\u89c2\u7f8e\u89c2\u5927\u65b9\u3002\u8f93\u51fa\u4fe1\u53f7\u7c7b\u578b\u4e3aRS485\uff0c\u6700\u8fdc\u53ef\u901a\u4fe1 2000 \u7c73\uff0c\u6807\u51c6\u7684 modbus \u534f\u8bae\uff0c\u652f\u6301\u4e8c\u6b21\u5f00\u53d1\u3002<\/p>\n\n\n\n

\u529f\u80fd\u7279\u70b9<\/h2>\n\n\n\n

\u91c7\u7528\u745e\u58eb\u8fdb\u53e3\u7684\u6d4b\u91cf\u5355\u5143\uff0c\u6d4b\u91cf\u7cbe\u51c6\u3002\u91c7\u7528\u4e13\u7528\u7684 485 \u7535\u8def\uff0c\u901a\u4fe1\u7a33\u5b9a\u300210~30V \u5bbd\u7535\u538b\u8303\u56f4\u4f9b\u7535\uff0c\u89c4\u683c\u9f50\u5168\uff0c\u5b89\u88c5\u65b9\u4fbf\u3002<\/p>\n\n\n\n

\u4e3b\u8981\u6280\u672f\u53c2\u6570<\/h2>\n\n\n\n

\u76f4\u6d41\u4f9b\u7535\uff08\u9ed8\u8ba4\uff09\uff1a DC 10-30V
\u6700\u5927\u529f\u8017\uff1a 0.1W\uff08DC24V\uff09
A \u51c6\u7cbe\u5ea6 \uff1a\u6e7f\u5ea6 \u00b12%RH(60%RH,25\u2103) \uff0c\u6e29\u5ea6 \u00b10.4\u2103\uff0825\u2103\uff09
B \u51c6\u7cbe\u5ea6\uff08\u9ed8\u8ba4\uff09\uff1a\u6e7f\u5ea6 \u00b13%RH(60%RH,25\u2103)\uff0c\u6e29\u5ea6 \u00b10.5\u2103\uff0825\u2103\uff09
\u53d8\u9001\u5668\u7535\u8def\uff1a\u5de5\u4f5c\u6e29\u6e7f\u5ea6 -40\u2103~+60\u2103\uff0c0%RH~95%RH\uff08\u975e\u7ed3\u9732\uff09
\u63a2\u5934\u5de5\u4f5c\u6e29\u5ea6\uff1a -40\u2103~+120\u2103 \u9ed8\u8ba4\uff1a-40\u2103~+80\u2103
\u63a2\u5934\u5de5\u4f5c\u6e7f\u5ea6\uff1a 0%RH-100%RH
\u6e29\u5ea6\u663e\u793a\u5206\u8fa8\u7387\uff1a 0.1\u2103
\u6e7f\u5ea6\u663e\u793a\u5206\u8fa8\u7387\uff1a 0.1%RH
\u6e29\u6e7f\u5ea6\u5237\u65b0\u65f6\u95f4\uff1a 1s
\u957f\u671f\u7a33\u5b9a\u6027\uff1a <\/p>\n\n\n\n

\u6e7f\u5ea6 \u22641%RH\/y
\u6e29\u5ea6 \u22640.1\u2103\/y<\/p>\n\n\n\n

\u54cd\u5e94\u65f6\u95f4 \uff1a\u6e7f\u5ea6 \u22648s(1m\/s \u98ce\u901f)\uff0c\u6e29\u5ea6 \u226425s(1m\/s \u98ce\u901f)
\u8f93\u51fa\u4fe1\u53f7\uff1a RS485(Modbus \u534f\u8bae)
\u5b89\u88c5\u65b9\u5f0f\uff1a \u58c1\u6302\u5f0f<\/p>\n\n\n\n

\u63a5\u7ebf\u8bf4\u660e<\/h2>\n\n\n\n

\u5bbd\u7535\u538b\u7535\u6e90\u8f93\u5165 10~30V \u5747\u53ef\u3002485 \u4fe1\u53f7\u7ebf\u63a5\u7ebf\u65f6\u6ce8\u610f A\\B \u4e24\u6761\u7ebf\u4e0d\u80fd\u63a5\u53cd\uff0c\u603b\u7ebf\u4e0a\u591a
\u53f0\u8bbe\u5907\u95f4\u5730\u5740\u4e0d\u80fd\u51b2\u7a81\u3002<\/p>\n\n\n\n

\u901a\u4fe1\u534f\u8bae<\/h2>\n\n\n\n
\u7f16 \u7801<\/td>8 \u4f4d\u4e8c\u8fdb\u5236<\/td><\/tr>
\u6570\u636e\u4f4d<\/td>8 \u4f4d<\/td><\/tr>
\u5947\u5076\u6821\u9a8c\u4f4d<\/td>\u65e0<\/td><\/tr>
\u505c\u6b62\u4f4d<\/td>1 \u4f4d<\/td><\/tr>
\u9519\u8bef\u6821\u9a8c<\/td>CRC\uff08\u5197\u4f59\u5faa\u73af\u7801\uff09<\/td><\/tr>
\u6ce2\u7279\u7387<\/td>2400bit\/s\u30014800bit\/s\u30019600bit\/s \u53ef\u8bbe\uff0c\u51fa\u5382\u9ed8\u8ba4\u4e3a 4800bit\/s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u91c7\u7528Modbus-RTU \u901a\u8baf\u89c4\u7ea6\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a
\u521d\u59cb\u7ed3\u6784 \u22654 \u5b57\u8282\u7684\u65f6\u95f4
\u5730\u5740\u7801 = 1 \u5b57\u8282
\u529f\u80fd\u7801 = 1 \u5b57\u8282
\u6570\u636e\u533a = N \u5b57\u8282
\u9519\u8bef\u6821\u9a8c = 16 \u4f4dCRC \u7801
\u7ed3\u675f\u7ed3\u6784 \u22654 \u5b57\u8282\u7684\u65f6\u95f4
\u5730\u5740\u7801\uff1a\u4e3a\u53d8\u9001\u5668\u7684\u5730\u5740\uff0c\u5728\u901a\u8baf\u7f51\u7edc\u4e2d\u662f\u552f\u4e00\u7684\uff08\u51fa\u5382\u9ed8\u8ba40x01\uff09\u3002
\u529f\u80fd\u7801\uff1a\u4e3b\u673a\u6240\u53d1\u6307\u4ee4\u529f\u80fd\u6307\u793a\uff0c\u672c\u53d8\u9001\u5668\u652f\u6301\u529f\u80fd\u78010x03\uff08\u8bfb\u53d6\u5bc4\u5b58\u5668\u6570\u636e\uff09\u30010x06\uff08\u5199\u5165\u5bc4\u5b58\u5668\u6570\u636e\uff09\u3002
\u6570\u636e\u533a\uff1a\u6570\u636e\u533a\u662f\u5177\u4f53\u901a\u8baf\u6570\u636e\uff0c\u6ce8\u610f16bits\u6570\u636e\u9ad8\u5b57\u8282\u5728\u524d\uff01
CRC\u7801\uff1a\u4e8c\u5b57\u8282\u7684\u6821\u9a8c\u7801\u3002<\/p>\n\n\n\n

\u4e3b\u673a\u95ee\u8be2\u5e27\u7ed3\u6784<\/h4>\n\n\n\n
\u5730\u5740\u7801<\/td>Function Code<\/td>\u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740<\/td>\u5bc4\u5b58\u5668\u957f\u5ea6<\/td>\u6821\u9a8c\u7801\u4f4e\u4f4d<\/td>\u6821\u9a8c\u7801\u9ad8\u4f4d<\/td><\/tr>
1 byte<\/td>1 byte<\/td>2 bytes<\/td>2 bytes<\/td>1 byte<\/td>1 byte<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4ece\u673a\u5e94\u7b54\u5e27\u7ed3\u6784<\/h4>\n\n\n\n
\u5730\u5740\u7801<\/td>Function Code<\/td>\u6709\u6548\u5b57\u8282\u6570<\/td>\u6570\u636e\u4e00\u533a<\/td>\u7b2c\u4e8c\u6570\u636e\u533a<\/td>\u7b2c N \u6570\u636e\u533a<\/td>\u6821\u9a8c\u7801<\/td><\/tr>
1 byte<\/td>1 byte<\/td>1 byte<\/td>2 bytes<\/td>2 bytes<\/td>2 bytes<\/td>2 bytes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5bc4\u5b58\u5668\u5730\u5740<\/h4>\n\n\n\n
\u5bc4\u5b58\u5668\u5730\u5740<\/td>PLC\u6216\u7ec4\u6001\u5730\u5740<\/td>\u5185\u5bb9<\/td>\u64cd\u4f5c<\/td>\u8bf4\u660e<\/td><\/tr>
0000 H<\/td>40001<\/td>\u6e7f\u5ea6<\/td>\u53ea\u8bfb<\/td>\u6e7f\u5ea6\u5b9e\u65f6\u503c\uff08\u6269\u592710\u500d<\/td><\/tr>
0001 H<\/td>40002<\/td>\u6e29\u5ea6<\/td>\u53ea\u8bfb<\/td>\u6e29\u5ea6\u5b9e\u65f6\u503c\uff08\u6269\u592710\u500d\uff09<\/td><\/tr>
0050H<\/td>40081<\/td>\u6e29\u5ea6\u6821\u51c6\u503c<\/td>\u8bfb\u5199<\/td>\u6574\u6570\uff08\u6269\u592710\u500d\uff09<\/td><\/tr>
0051H<\/td>40082<\/td>\u6e7f\u5ea6\u6821\u51c6\u503c<\/td>\u8bfb\u5199<\/td>\u6574\u6570\uff08\u6269\u592710\u500d\uff09<\/td><\/tr>
07D0 H<\/td>42001<\/td>\u8bbe\u5907\u5730\u5740<\/td>\u8bfb\u5199<\/td>1~254\uff08\u51fa\u5382\u9ed8\u8ba41\uff09<\/td><\/tr>
07D1 H<\/td>42002<\/td>\u6ce2\u7279\u7387<\/td>\u8bfb\u5199<\/td>0\u4ee3\u88682400
1\u4ee3\u88684800
2\u4ee3\u88689600<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u901a\u8baf\u534f\u8bae\u793a\u4f8b\u4ee5\u53ca\u89e3\u91ca<\/h4>\n\n\n\n

\u4e3e\u4f8b\uff1a\u8bfb\u53d6\u8bbe\u5907\u5730\u5740 0x01 \u7684\u6e29\u6e7f\u5ea6\u503c\u3001\u4fee\u6539\u5730\u5740<\/p>\n\n\n\n

\u95ee\u8be2\u5e27\uff0816 \u8fdb\u5236\uff09\uff1a<\/p>\n\n\n\n

\u5730\u5740\u7801<\/td>Function Code<\/td>\u8d77\u59cb\u5730\u5740<\/td>\u6570\u636e\u957f\u5ea6<\/td>\u6821\u9a8c\u7801\u4f4e\u4f4d<\/td>\u6821\u9a8c\u7801\u9ad8\u4f4d<\/td><\/tr>
0x01<\/td>0x03<\/td>0x00 0x00<\/td>0x00 0x02<\/td>0xC4<\/td>0x0B<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5e94\u7b54\u5e27\uff0816 \u8fdb\u5236\uff09\uff1a\uff08\u4f8b\u5982\u8bfb\u5230\u6e29\u5ea6\u4e3a-10.1\u2103\uff0c\u6e7f\u5ea6\u4e3a 65.8%RH\uff09<\/p>\n\n\n\n

\u5730\u5740\u7801<\/td>Function Code<\/td>\u8fd4\u56de\u6709\u6548\u5b57\u8282\u6570<\/td>\u6e7f\u5ea6\u503c<\/td>\u6e29\u5ea6\u503c<\/td>\u6821\u9a8c\u7801\u4f4e\u4f4d<\/td>\u6821\u9a8c\u7801\u9ad8\u4f4d<\/td><\/tr>
0x01<\/td>0x03<\/td>0x04<\/td>0x02 0x92<\/td>0xFF 0x9B<\/td>0x5A<\/td>0x3D<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6e29\u5ea6\u8ba1\u7b97\uff1a
\u5f53\u6e29\u5ea6\u4f4e\u4e8e 0 \u2103 \u65f6\u6e29\u5ea6\u6570\u636e\u4ee5\u8865\u7801\u7684\u5f62\u5f0f\u4e0a\u4f20\u3002
\u6e29\u5ea6\uff1aFF9B H(\u5341\u516d\u8fdb\u5236)= -101 => \u6e29\u5ea6 = -10.1\u2103
\u6e7f\u5ea6\u8ba1\u7b97\uff1a
\u6e7f\u5ea6\uff1a292 H (\u5341\u516d\u8fdb\u5236)= 658 => \u6e7f\u5ea6 = 65.8%RH
\u4e3e\u4f8b\uff1a\u8bbe\u5907\u5730\u5740 0x01 \u4fee\u6539\u4e3a 0x02
\u95ee\u8be2\u5e27\uff0816 \u8fdb\u5236\uff09\uff1a\uff08\u5047\u8bbe\u4fee\u6539\u5730\u5740\u4e3a 0x02 \u6ce8\u610f\uff1a\u4fee\u6539\u5730\u5740\u540e\u9700\u65ad\u7535\u91cd\u542f\u8bbe\u5907)<\/p>\n\n\n\n

\u5730\u5740\u7801<\/td>Function Code<\/td>\u8d77\u59cb\u5730\u5740<\/td>\u4fee\u6539\u6570\u503c<\/td>\u6821\u9a8c\u7801\u4f4e\u4f4d<\/td>\u6821\u9a8c\u7801\u9ad8\u4f4d<\/td><\/tr>
0x01<\/td>0x06<\/td>0x07 0xD0<\/td>0x00 0x02<\/td>0x08<\/td>0x86<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5e94\u7b54\u5e27\uff0816 \u8fdb\u5236\uff09\uff1a<\/p>\n\n\n\n

\u5730\u5740\u7801<\/td>Function Code<\/td>\u8d77\u59cb\u5730\u5740<\/td>\u4fee\u6539\u6570\u503c<\/td>\u6821\u9a8c\u7801\u4f4e\u4f4d<\/td>\u6821\u9a8c\u7801\u9ad8\u4f4d<\/td><\/tr>
0x01<\/td>0x06<\/td>0x07 0xD0<\/td>0x00 0x02<\/td>0x08<\/td>0x86<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u529e\u6cd5<\/h2>\n\n\n\n

\u8bbe\u5907\u65e0\u6cd5\u8fde\u63a5\u5230 PLC \u6216\u7535\u8111<\/p>\n\n\n\n

\u53ef\u80fd\u7684\u539f\u56e0\uff1a
1)\u7535\u8111\u6709\u591a\u4e2a COM \u53e3\uff0c\u9009\u62e9\u7684\u53e3\u4e0d\u6b63\u786e
2)\u8bbe\u5907\u5730\u5740\u9519\u8bef\uff0c\u6216\u8005\u5b58\u5728\u5730\u5740\u91cd\u590d\u7684\u8bbe\u5907\uff08\u51fa\u5382\u9ed8\u8ba4\u5168\u90e8\u4e3a 1\uff09. 3)\u6ce2\u7279\u7387\uff0c\u6821\u9a8c\u65b9\u5f0f\uff0c\u6570\u636e\u4f4d\uff0c\u505c\u6b62\u4f4d\u9519\u8bef. 4)485 \u603b\u7ebf\u6709\u65ad\u5f00\uff0c\u6216\u8005 A\u3001B \u7ebf\u63a5\u53cd\u3002
5)\u8bbe\u5907\u6570\u91cf\u8fc7\u591a\u6216\u5e03\u7ebf\u592a\u957f\uff0c\u5e94\u5c31\u8fd1\u4f9b\u7535\uff0c\u52a0 485 \u589e\u5f3a\u5668\uff0c\u540c\u65f6\u589e\u52a0 120\u03a9\u7ec8\u7aef\u7535\u963b\u3002
6)USB \u8f6c 485 \u9a71\u52a8\u672a\u5b89\u88c5\u6216\u8005\u635f\u574f
7)\u8bbe\u5907\u635f\u574f<\/p>\n\n\n\n

<\/p>\n<\/span>","protected":false},"excerpt":{"rendered":"

\u4ea7\u54c1\u6982\u8ff0 \u8be5\u4ea7\u54c1\u4e3a\u58c1\u6302\u9ad8\u9632\u62a4\u7b49\u7ea7\u5916\u58f3\uff0c\u9632\u62a4\u7b49\u7ea7 IP65\uff0c\u9632…<\/p>","protected":false},"author":1,"featured_media":10465,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[3095],"tags":[939,562,938,266,269],"class_list":["post-10463","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-slug-device-registers","tag-rh","tag-562","tag-938","tag-266","tag-269"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/10463","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=10463"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/10463\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/10465"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=10463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=10463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=10463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}