{"id":30238,"date":"2025-03-10T18:21:47","date_gmt":"2025-03-10T10:21:47","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=30238"},"modified":"2026-06-25T22:37:02","modified_gmt":"2026-06-25T14:37:02","slug":"shi-he-yi-kong-qi-zhi-liang-chuan-gan-qi-shuo-ming-shu","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/30238.html","title":{"rendered":"\u5341\u5408\u4e00\u7a7a\u6c14\u8d28\u91cf\u4f20\u611f\u5668\u8bf4\u660e\u4e66"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"f4f4f5\" data-has-transparency=\"false\" style=\"--dominant-color: #f4f4f5;\" decoding=\"async\" sizes=\"(max-width: 950px) 100vw, 950px\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2025\/03\/20250310182103775.png?x-oss-process=image\/resize,m_lfit,w_950,h_950\"  class=\"wp-image-30239 not-transparent\" ><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u3001\u901a\u4fe1\u534f\u8bae\u6982\u8ff0<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u9ed8\u8ba4\u901a\u4fe1\u53c2\u6570<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6ce2\u7279\u7387<\/strong>\uff1a<code>9600<\/code><\/li>\n\n\n\n<li><strong>\u6570\u636e\u4f4d<\/strong>\uff1a<code>8<\/code><\/li>\n\n\n\n<li><strong>\u6821\u9a8c\u4f4d<\/strong>\uff1a\u65e0<\/li>\n\n\n\n<li><strong>\u505c\u6b62\u4f4d<\/strong>\uff1a<code>1<\/code>\uff08\u5373 <code>9600\/8\/N\/1<\/code>\uff09<\/li>\n\n\n\n<li><strong>\u9ed8\u8ba4\u8bbe\u5907\u5730\u5740<\/strong>\uff1a<code>0x01<\/code><\/li>\n\n\n\n<li><strong>\u54cd\u5e94\u65f6\u95f4<\/strong>\uff1a&lt; 100ms<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. CRC \u6821\u9a8c<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b97\u6cd5<\/strong>\uff1aCRC-16\/Modbus\uff08\u591a\u9879\u5f0f <code>0x8005<\/code>\uff09<\/li>\n\n\n\n<li><strong>\u6821\u9a8c\u7801\u683c\u5f0f<\/strong>\uff1a2 \u5b57\u8282\uff0c\u9ad8\u4f4d\u5728\u524d\uff08\u5982 <code>CRC_H CRC_L<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u5de5\u5177<\/strong>\uff1a\u53c2\u8003 <a href=\"https:\/\/github.com\/sunbaoshi1975\/CRCTool\" rel=\"noopener noreferrer nofollow\">CRCTool<\/a> \u6216\u89c4\u683c\u4e66\u7b2c IX \u7ae0\u4ee3\u7801\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u3001\u534f\u8bae\u529f\u80fd\u8be6\u89e3<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u8bfb\u53d6\u8bbe\u5907\u5730\u5740\u548c\u56fa\u4ef6\u7248\u672c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u529f\u80fd<\/strong>\uff1a\u83b7\u53d6\u5f53\u524d\u8bbe\u5907\u5730\u5740\u548c\u56fa\u4ef6\u7248\u672c\u53f7\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u8bf7\u6c42\u683c\u5f0f\uff08\u4e3b\u673a\u2192\u4f20\u611f\u5668\uff09<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u8282\u4f4d\u7f6e<\/th><th>\u6570\u636e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td><code>0xFE<\/code><\/td><td>\u5e7f\u64ad\u5730\u5740\uff08\u6240\u6709\u8bbe\u5907\u54cd\u5e94\uff09<\/td><\/tr><tr><td>1<\/td><td><code>0x11<\/code><\/td><td>\u529f\u80fd\u7801\uff08\u8bfb\u53d6\u5730\u5740\uff09<\/td><\/tr><tr><td>2-5<\/td><td><code>0x00<\/code><\/td><td>\u56fa\u5b9a\u586b\u5145<\/td><\/tr><tr><td>6-7<\/td><td><code>CRC<\/code><\/td><td>CRC \u6821\u9a8c\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u547d\u4ee4<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FE 11 00 00 00 01 28 06<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u54cd\u5e94\u683c\u5f0f\uff08\u4f20\u611f\u5668\u2192\u4e3b\u673a\uff09<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u8282\u4f4d\u7f6e<\/th><th>\u6570\u636e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td><code>0x01<\/code><\/td><td>\u8bbe\u5907\u5730\u5740<\/td><\/tr><tr><td>1<\/td><td><code>0x11<\/code><\/td><td>Function Code<\/td><\/tr><tr><td>2<\/td><td><code>0x02<\/code><\/td><td>\u6570\u636e\u957f\u5ea6\uff082 \u5b57\u8282\uff09<\/td><\/tr><tr><td>3<\/td><td><code>0x12<\/code><\/td><td>\u56fa\u4ef6\u7248\u672c\uff08\u5982 <code>0x12=V1.2<\/code>\uff09<\/td><\/tr><tr><td>4<\/td><td><code>0x01<\/code><\/td><td>\u5f53\u524d\u5730\u5740<\/td><\/tr><tr><td>5-6<\/td><td><code>CRC<\/code><\/td><td>CRC \u6821\u9a8c\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u54cd\u5e94<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 11 02 12 01 70 5C<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>\u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56fa\u4ef6\u7248\u672c\uff1a<code>V1.2<\/code><\/li>\n\n\n\n<li>\u8bbe\u5907\u5730\u5740\uff1a<code>0x01<\/code><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u4fee\u6539\u8bbe\u5907\u5730\u5740<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u529f\u80fd<\/strong>\uff1a\u66f4\u6539\u8bbe\u5907 Modbus \u5730\u5740\uff08\u8303\u56f4 <code>1~247<\/code>\uff09\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u8bf7\u6c42\u683c\u5f0f\uff08\u4e3b\u673a\u2192\u4f20\u611f\u5668\uff09<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u8282\u4f4d\u7f6e<\/th><th>\u6570\u636e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>\u5f53\u524d\u5730\u5740<\/td><td>\u539f\u5730\u5740\uff08\u5982 <code>0x01<\/code>\uff09<\/td><\/tr><tr><td>1<\/td><td><code>0x06<\/code><\/td><td>\u529f\u80fd\u7801\uff08\u4fee\u6539\u5730\u5740\uff09<\/td><\/tr><tr><td>2-4<\/td><td><code>0x00<\/code><\/td><td>\u56fa\u5b9a\u586b\u5145<\/td><\/tr><tr><td>5<\/td><td>\u65b0\u5730\u5740<\/td><td>\u76ee\u6807\u5730\u5740\uff08\u5982 <code>0x02<\/code>\uff09<\/td><\/tr><tr><td>6-7<\/td><td><code>CRC<\/code><\/td><td>CRC \u6821\u9a8c\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u547d\u4ee4<\/strong>\uff08\u4fee\u6539\u5730\u5740\u4e3a <code>0x02<\/code>\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 06 00 00 00 02 08 0B<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u54cd\u5e94\u683c\u5f0f\uff08\u4f20\u611f\u5668\u2192\u4e3b\u673a\uff09<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0e\u8bf7\u6c42\u683c\u5f0f\u4e00\u81f4\uff0c\u8fd4\u56de\u4fee\u6539\u540e\u7684\u5730\u5740\u786e\u8ba4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u54cd\u5e94<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 06 00 00 00 02 08 0B<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>\u8bf4\u660e<\/strong>\uff1a\u54cd\u5e94\u6570\u636e\u4e0e\u8bf7\u6c42\u76f8\u540c\u8868\u793a\u4fee\u6539\u6210\u529f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u8bfb\u53d6\u4f20\u611f\u5668\u6570\u636e<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u529f\u80fd<\/strong>\uff1a\u8bfb\u53d6\u6307\u5b9a\u5bc4\u5b58\u5668\u7684\u4f20\u611f\u5668\u6570\u636e\uff08\u652f\u6301\u5355\u6b21\u8bfb\u53d6\u591a\u4e2a\u4f20\u611f\u5668\uff09\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u8bf7\u6c42\u683c\u5f0f\uff08\u4e3b\u673a\u2192\u4f20\u611f\u5668\uff09<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u8282\u4f4d\u7f6e<\/th><th>\u6570\u636e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>\u8bbe\u5907\u5730\u5740<\/td><td>\u5982 <code>0x01<\/code><\/td><\/tr><tr><td>1<\/td><td><code>0x03<\/code><\/td><td>\u529f\u80fd\u7801\uff08\u8bfb\u53d6\u6570\u636e\uff09<\/td><\/tr><tr><td>2-3<\/td><td>\u8d77\u59cb\u5730\u5740<\/td><td>\u5bc4\u5b58\u5668\u8d77\u59cb\u5730\u5740\uff08\u9ad8\u4f4d\u5728\u524d\uff09<\/td><\/tr><tr><td>4-5<\/td><td>\u5bc4\u5b58\u5668\u6570\u91cf<\/td><td>\u9700\u8bfb\u53d6\u7684\u5bc4\u5b58\u5668\u6570\u91cf<\/td><\/tr><tr><td>6-7<\/td><td><code>CRC<\/code><\/td><td>CRC \u6821\u9a8c\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u547d\u4ee4<\/strong>\uff08\u8bfb\u53d6\u5168\u90e8 11 \u4e2a\u4f20\u611f\u5668\u6570\u636e\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 03 00 00 00 0B C5 CD<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u54cd\u5e94\u683c\u5f0f\uff08\u4f20\u611f\u5668\u2192\u4e3b\u673a\uff09<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u8282\u4f4d\u7f6e<\/th><th>\u6570\u636e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>\u8bbe\u5907\u5730\u5740<\/td><td>\u5982 <code>0x01<\/code><\/td><\/tr><tr><td>1<\/td><td><code>0x03<\/code><\/td><td>Function Code<\/td><\/tr><tr><td>2<\/td><td>\u6570\u636e\u957f\u5ea6<\/td><td>\u5b57\u8282\u6570\uff08\u5bc4\u5b58\u5668\u6570\u91cf \u00d7 2\uff09<\/td><\/tr><tr><td>3~N<\/td><td>\u4f20\u611f\u5668\u6570\u636e<\/td><td>\u6bcf\u4e2a\u5bc4\u5b58\u5668 2 \u5b57\u8282\uff08\u9ad8\u4f4d\u5728\u524d\uff09<\/td><\/tr><tr><td>N+1~N+2<\/td><td><code>CRC<\/code><\/td><td>CRC \u6821\u9a8c\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u54cd\u5e94<\/strong>\uff08\u90e8\u5206\u6570\u636e\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 03 16 00 96 00 64 00 32 00 30 00 28 00 1E 01 2C 00 0A 00 14 70 5C<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>\u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>00 96<\/code> \u2192 eCO\u2082 = 150 ppm<\/li>\n\n\n\n<li><code>00 64<\/code> \u2192 TVOC = 100 ppb<\/li>\n\n\n\n<li><code>00 32<\/code> \u2192 CH\u2082O = 50 \u03bcg\/m\u00b3<\/li>\n\n\n\n<li><strong>\u6e29\u6e7f\u5ea6\u6570\u636e<\/strong>\uff1a<\/li>\n\n\n\n<li>\u6e7f\u5ea6\uff1a<code>0x012C<\/code> \u2192 300 \u2192 300\/100 = 30.0%RH<\/li>\n\n\n\n<li>\u6e29\u5ea6\uff1a<code>0x000A<\/code> \u2192 10 \u2192 10\/100 = 0.10\u2103<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u7cfb\u7edf\u53c2\u6570\u914d\u7f6e\uff08\u9ad8\u7ea7\u529f\u80fd\uff09<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">4.1 \u8bfb\u53d6\/\u8bbe\u7f6e\u6ce2\u7279\u7387<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5bc4\u5b58\u5668\u5730\u5740<\/strong>\uff1a<code>0x0103<\/code>\uff08\u6ce2\u7279\u7387\u4ee3\u7801\u89c1\u9644\u5f55\u8868\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bfb\u53d6\u6ce2\u7279\u7387\u8bf7\u6c42<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 03 01 03 00 01 CRC<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>\u8bbe\u7f6e\u6ce2\u7279\u7387\u8bf7\u6c42<\/strong>\uff08\u8bbe\u4e3a 115200\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 06 01 03 00 07 CRC<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">4.2 \u6821\u51c6\u4f20\u611f\u5668\u6570\u636e<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5bc4\u5b58\u5668\u5730\u5740<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6e29\u5ea6\u6821\u51c6\uff1a<code>0x011D<\/code><\/li>\n\n\n\n<li>\u6e7f\u5ea6\u6821\u51c6\uff1a<code>0x011C<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\u547d\u4ee4<\/strong>\uff08\u6e29\u5ea6\u6821\u51c6 +2.5\u2103\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01 06 01 1D 00 FA 98 73<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>\u8bf4\u660e<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>00 FA<\/code> \u2192 250\uff08\u5373 250\/100 = 2.5\u2103\uff09<\/li>\n\n\n\n<li>\u8d1f\u503c\u9700\u8f6c\u6362\u4e3a\u8865\u7801\uff08\u5982 <code>0xFF9C<\/code> \u2192 -100 \u2192 -1.00\u2103\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u3001\u6570\u636e\u89e3\u6790\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u8ba1\u7b97\u516c\u5f0f<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4f20\u611f\u5668\u7c7b\u578b<\/th><th>\u516c\u5f0f<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead><tbody><tr><td><strong>eCO\u2082<\/strong><\/td><td><code>CO\u2082 = (CO\u2082_H &lt;&lt; 8) + CO\u2082_L<\/code><\/td><td><code>0x0096<\/code> \u2192 150 ppm<\/td><\/tr><tr><td><strong>\u6e29\u5ea6<\/strong><\/td><td><code>\u6e29\u5ea6 = \u6709\u7b26\u53f7\u503c \/ 100<\/code><\/td><td><code>0xFF9C<\/code> \u2192 -100 \u2192 -1.00\u2103<\/td><\/tr><tr><td><strong>\u5149\u7167\u5ea6<\/strong><\/td><td><code>Lux = (Lux_H &lt;&lt; 8) + Lux_L<\/code><\/td><td><code>0x01F4<\/code> \u2192 500 Lux<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u6709\u7b26\u53f7\u6570\u5904\u7406<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65b9\u6cd5 1<\/strong>\uff1a\u76f4\u63a5\u8f6c\u4e3a\u6709\u7b26\u53f7\u6574\u6570\uff08\u5982 <code>0xFF9C<\/code> \u2192 -100\uff09\u3002<\/li>\n\n\n\n<li><strong>\u65b9\u6cd5 2<\/strong>\uff1a\u82e5\u503c &gt; 32767\uff0c\u5219 <code>\u771f\u5b9e\u503c = (\u539f\u59cb\u503c - 65536) \/ 100<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u56db\u3001\u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9884\u70ed\u65f6\u95f4<\/strong>\uff1aVOC \u6a21\u5757\u9700\u9884\u70ed \u22653 \u5206\u949f\uff0c\u5176\u4ed6\u4f20\u611f\u5668\u4e0a\u7535\u5373\u7528\u3002<\/li>\n\n\n\n<li><strong>\u5b89\u88c5\u8981\u6c42<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b89\u88c5\u9ad8\u5ea6 \u226515cm\uff0c\u907f\u514d\u5730\u9762\u5c18\u57c3\u6c61\u67d3\u3002<\/li>\n\n\n\n<li>\u907f\u514d\u9ad8\u7c89\u5c18\uff08&gt;300 \u03bcg\/m\u00b3\uff09\u3001\u6cb9\u70df\u6216\u9ad8\u6e7f\u5ea6\u73af\u5883\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6821\u51c6\u8b66\u544a<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9ad8\u7ea7\u529f\u80fd\u9700\u8c28\u614e\u64cd\u4f5c\uff0c\u8bef\u4fee\u6539\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5f02\u5e38\u3002<\/li>\n\n\n\n<li>\u6821\u51c6\u503c\u9700\u6309\u5b9e\u9645\u73af\u5883\u8c03\u6574\uff0c\u5efa\u8bae\u8bb0\u5f55\u51fa\u5382\u9ed8\u8ba4\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>CRC Check<\/strong>\uff1a\u6240\u6709\u547d\u4ee4\u5fc5\u987b\u5305\u542b\u6b63\u786e CRC\uff0c\u5426\u5219\u8bbe\u5907\u65e0\u54cd\u5e94\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e94\u3001\u9644\u5f55<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u4f20\u611f\u5668\u5bc4\u5b58\u5668\u5730\u5740\u8868<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5bc4\u5b58\u5668\u5730\u5740<\/th><th>\u4f20\u611f\u5668\u7c7b\u578b<\/th><th>\u6570\u636e\u683c\u5f0f<\/th><\/tr><\/thead><tbody><tr><td><code>0x0000<\/code><\/td><td>eCO\u2082<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08ppm\uff09<\/td><\/tr><tr><td><code>0x0001<\/code><\/td><td>TVOC<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08ppb\uff09<\/td><\/tr><tr><td><code>0x0002<\/code><\/td><td>CH\u2082O<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08\u03bcg\/m\u00b3\uff09<\/td><\/tr><tr><td><code>0x0003<\/code><\/td><td>PM2.5<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08\u03bcg\/m\u00b3\uff09<\/td><\/tr><tr><td><code>0x0004<\/code><\/td><td>\u6e7f\u5ea6<\/td><td>2 \u5b57\u8282\uff08\u771f\u5b9e\u503c \u00d7 100\uff09<\/td><\/tr><tr><td><code>0x0005<\/code><\/td><td>\u6e29\u5ea6<\/td><td>2 \u5b57\u8282\uff08\u771f\u5b9e\u503c \u00d7 100\uff09<\/td><\/tr><tr><td><code>0x0006<\/code><\/td><td>PM10<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08\u03bcg\/m\u00b3\uff09<\/td><\/tr><tr><td><code>0x0007<\/code><\/td><td>PM1.0<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08\u03bcg\/m\u00b3\uff09<\/td><\/tr><tr><td><code>0x0008<\/code><\/td><td>\u5149\u7167\u5ea6<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08Lux\uff09<\/td><\/tr><tr><td><code>0x0009<\/code><\/td><td>MCU \u6e29\u5ea6<\/td><td>2 \u5b57\u8282\uff08\u771f\u5b9e\u503c \u00d7 100\uff09<\/td><\/tr><tr><td><code>0x000A<\/code><\/td><td>\u566a\u58f0<\/td><td>2 \u5b57\u8282\u65e0\u7b26\u53f7\u6574\u6570\uff08dB\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u6ce2\u7279\u7387\u4ee3\u7801\u8868<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4ee3\u7801<\/th><th>\u6ce2\u7279\u7387<\/th><\/tr><\/thead><tbody><tr><td><code>0<\/code><\/td><td>1200<\/td><\/tr><tr><td><code>1<\/code><\/td><td>2400<\/td><\/tr><tr><td><code>2<\/code><\/td><td>4800<\/td><\/tr><tr><td><code>3<\/code><\/td><td>9600<\/td><\/tr><tr><td><code>4<\/code><\/td><td>19200<\/td><\/tr><tr><td><code>5<\/code><\/td><td>38400<\/td><\/tr><tr><td><code>6<\/code><\/td><td>57600<\/td><\/tr><tr><td><code>7<\/code><\/td><td>115200<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">3. CRC \u8ba1\u7b97\u4ee3\u7801\uff08C \u8bed\u8a00\u793a\u4f8b\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>uint16_t CRC16_Check(const uint8_t *pushMsg, uint8_t usDataLen) {\n    uint8_t uchCRCHi = 0xFF, uchCRCLo = 0xFF;\n    uint8_t uIndex;\n    while (usDataLen--) {\n        uIndex = uchCRCLo ^ *pushMsg++;\n        uchCRCLo = uchCRCHi ^ auchCRCHi&#091;uIndex];\n        uchCRCHi = auchCRCLo&#091;uIndex];\n    }\n    return (uint16_t)(uchCRCHi &lt;&lt; 8 | uchCRCLo);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark class=\"has-inline-color has-vivid-red-color\">\u4ea7\u54c1\u8d2d\u4e70\uff1a<\/mark><\/strong><a href=\"https:\/\/item.taobao.com\/item.htm?ft=t&amp;id=675637355531\" rel=\"noopener noreferrer nofollow\">https:\/\/item.taobao.com\/item.htm?ft=t&amp;id=675637355531<\/a><\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>(modbus.cn)\u3002<\/p>","protected":false},"author":1,"featured_media":30239,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[2089],"tags":[326,562,563,671],"class_list":["post-30238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-shuomingshu","tag-326","tag-562","tag-563","tag-671"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/30238","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=30238"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/30238\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/30239"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=30238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=30238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=30238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}