{"id":43927,"date":"2026-06-26T08:45:20","date_gmt":"2026-06-26T00:45:20","guid":{"rendered":"https:\/\/www.modbus.cn\/43927.html"},"modified":"2026-06-26T08:45:20","modified_gmt":"2026-06-26T00:45:20","slug":"modpoll-modbus-tiao-shi-gong-ju-wan-quan-zhi-nan-ming-ling-xing-zhu-zhan-mo-ni-qi-cong-ru-men","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/43927.html","title":{"rendered":"Modpoll Modbus\u8c03\u8bd5\u5de5\u5177\u5b8c\u5168\u6307\u5357\uff1a\u547d\u4ee4\u884c\u4e3b\u7ad9\u6a21\u62df\u5668\u4ece\u5165\u95e8\u5230\u7cbe\u901a"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f Modpoll\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modpoll \u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u547d\u4ee4\u884c Modbus \u4e3b\u7ad9\u6a21\u62df\u5668\uff0c\u7531 proconX \u516c\u53f8\u57fa\u4e8e\u5176 FieldTalk\u2122 \u534f\u8bae\u6808\u5f00\u53d1\u3002\u5b83\u53ef\u4ee5\u5728 Windows\u3001Linux\u3001QNX \u7b49\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u8fd0\u884c\uff0c\u662f\u5de5\u7a0b\u5e08\u8fdb\u884c Modbus \u8bbe\u5907\u8c03\u8bd5\u3001\u534f\u8bae\u6d4b\u8bd5\u548c\u6279\u91cf\u6570\u636e\u91c7\u96c6\u65f6\u7684\u5229\u5668\u3002\u4e0e\u5e26 GUI \u7684 Modbus Poll \u4e0d\u540c\uff0cModpoll \u5b8c\u5168\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u63a7\u5236\uff0c\u975e\u5e38\u9002\u5408\u96c6\u6210\u5230\u81ea\u52a8\u5316\u6d4b\u8bd5\u811a\u672c\u548c CI\/CD \u6d41\u7a0b\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b98\u65b9\u4e0b\u8f7d\u5730\u5740\uff1a<a href=\"http:\/\/www.focus-sw.com\/fieldtalk\/modpoll.html\" target=\"_blank\" rel=\"noopener noreferrer nofollow noreferrer noopener\">http:\/\/www.focus-sw.com\/fieldtalk\/modpoll.html<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modpoll \u652f\u6301\u7684\u529f\u80fd<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f20\u8f93\u6a21\u5f0f<\/strong>\uff1aModbus RTU\uff08\u4e32\u53e3\uff09\u548c Modbus TCP\uff08\u4ee5\u592a\u7f51\uff09\uff0c\u540c\u65f6\u652f\u6301\u901a\u8fc7 RTU-over-TCP \u7f51\u5173\u901a\u4fe1<\/li>\n<li><strong>\u529f\u80fd\u7801\u8986\u76d6<\/strong>\uff1aFC01\uff08\u8bfb\u7ebf\u5708\uff09\u3001FC02\uff08\u8bfb\u79bb\u6563\u8f93\u5165\uff09\u3001FC03\uff08\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\uff09\u3001FC04\uff08\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\uff09\u3001FC05\uff08\u5199\u5355\u7ebf\u5708\uff09\u3001FC06\uff08\u5199\u5355\u5bc4\u5b58\u5668\uff09\u3001FC15\uff08\u5199\u591a\u7ebf\u5708\uff09\u3001FC16\uff08\u5199\u591a\u5bc4\u5b58\u5668\uff09\u3001FC23\uff08\u8bfb\/\u5199\u591a\u5bc4\u5b58\u5668\uff09<\/li>\n<li><strong>\u6570\u636e\u683c\u5f0f<\/strong>\uff1a\u652f\u6301 HEX\u3001\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u3001\u5341\u8fdb\u5236\u6709\u7b26\u53f7\u300132 \u4f4d\u6d6e\u70b9\u6570\uff08Float\uff09\u7b49\u591a\u79cd\u663e\u793a\u683c\u5f0f<\/li>\n<li><strong>\u5b57\u8282\u5e8f\u914d\u7f6e<\/strong>\uff1a\u652f\u6301 Big-Endian \u548c Little-Endian \u4e24\u79cd\u5b57\u8282\u5e8f\uff0c\u9002\u914d\u4e0d\u540c\u5382\u5546\u7684 PLC \u8bbe\u5907<\/li>\n<li><strong>\u8f6e\u8be2\u6a21\u5f0f<\/strong>\uff1a\u652f\u6301\u5355\u6b21\u8bfb\u53d6\u548c\u8fde\u7eed\u8f6e\u8be2\uff0c\u53ef\u81ea\u7531\u6307\u5b9a\u8f6e\u8be2\u95f4\u9694<\/li>\n<li><strong>\u8f93\u51fa\u683c\u5f0f<\/strong>\uff1a\u652f\u6301\u6807\u51c6\u6587\u672c\u8f93\u51fa\u548c\u5341\u516d\u8fdb\u5236 raw \u8f93\u51fa\u4e24\u79cd\u6a21\u5f0f<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b89\u88c5 Modpoll<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Windows \u5e73\u53f0\u5b89\u88c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u5b98\u7f51\u4e0b\u8f7d Windows \u7248\u672c\u7684 ZIP \u538b\u7f29\u5305\uff0c\u89e3\u538b\u540e\u5373\u53ef\u83b7\u5f97 <code>modpoll.exe<\/code> \u53ef\u6267\u884c\u6587\u4ef6\u3002\u5efa\u8bae\u5c06\u89e3\u538b\u76ee\u5f55\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684 PATH \u73af\u5883\u53d8\u91cf\u4e2d\uff0c\u65b9\u4fbf\u5728\u4efb\u610f\u76ee\u5f55\u4e0b\u8c03\u7528\u3002Windows 10\/11 \u7528\u6237\u4e5f\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7 WSL \u4f7f\u7528 Linux \u7248\u672c\u7684 Modpoll\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Linux \u5e73\u53f0\u5b89\u88c5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u4e0b\u8f7d Linux \u7248\u672c\uff08\u4ee5 3.10 \u7248\u672c\u4e3a\u4f8b\uff09\nwget http:\/\/www.focus-sw.com\/fieldtalk\/modpoll-3.10-linux-x86_64.tar.gz\n\n# \u89e3\u538b\ntar -xzf modpoll-3.10-linux-x86_64.tar.gz\n\n# \u8fdb\u5165\u76ee\u5f55\ncd modpoll-3.10-linux-x86_64\n\n# \u6d4b\u8bd5\u8fd0\u884c\n.\/modpoll --version\n\n# \u53ef\u9009\uff1a\u521b\u5efa\u8f6f\u94fe\u63a5\u65b9\u4fbf\u5168\u5c40\u8c03\u7528\nsudo ln -s $(pwd)\/modpoll \/usr\/local\/bin\/modpoll<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">ARM \/ \u5d4c\u5165\u5f0f Linux \u5b89\u88c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u9700\u8981\u5728\u6811\u8393\u6d3e\u7b49 ARM \u8bbe\u5907\u4e0a\u8fd0\u884c\uff0c\u53ef\u4ee5\u4ece\u5b98\u7f51\u9009\u62e9\u5bf9\u5e94\u7684 ARM \u7248\u672c\uff0c\u6216\u4ece\u6e90\u7801\u4ea4\u53c9\u7f16\u8bd1\u3002proconX \u63d0\u4f9b\u4e86 armhf \u548c aarch64 \u7b49\u67b6\u6784\u7684\u9884\u7f16\u8bd1\u5305\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modpoll \u547d\u4ee4\u884c\u53c2\u6570\u8be6\u89e3<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead><tr><th>\u53c2\u6570<\/th><th>\u542b\u4e49<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead>\n<tbody>\n<tr><td><code>-m<\/code><\/td><td>\u4f20\u8f93\u6a21\u5f0f\uff08tcp \/ rtu \/ ascii\uff09<\/td><td><code>-m tcp<\/code><\/td><\/tr>\n<tr><td><code>-a<\/code><\/td><td>\u4ece\u7ad9\u5730\u5740\uff08Slave ID\uff09<\/td><td><code>-a 1<\/code><\/td><\/tr>\n<tr><td><code>-r<\/code><\/td><td>\u8d77\u59cb\u5bc4\u5b58\u5668\/\u7ebf\u5708\u5730\u5740\uff08\u534f\u8bae\u5730\u5740\uff09<\/td><td><code>-r 100<\/code><\/td><\/tr>\n<tr><td><code>-c<\/code><\/td><td>\u8bfb\u53d6\/\u5199\u5165\u7684\u70b9\u6570\uff08Count\uff09<\/td><td><code>-c 20<\/code><\/td><\/tr>\n<tr><td><code>-b<\/code><\/td><td>\u6ce2\u7279\u7387\uff08RTU \u6a21\u5f0f\uff09<\/td><td><code>-b 9600<\/code><\/td><\/tr>\n<tr><td><code>-p<\/code><\/td><td>\u6821\u9a8c\u4f4d\uff08none \/ even \/ odd\uff09<\/td><td><code>-p none<\/code><\/td><\/tr>\n<tr><td><code>-t<\/code><\/td><td>\u6570\u636e\u7c7b\u578b\u4e0e\u663e\u793a\u683c\u5f0f<\/td><td><code>-t 4:hex<\/code><\/td><\/tr>\n<tr><td><code>-1<\/code><\/td><td>\u6301\u7eed\u8f6e\u8be2\u6a21\u5f0f<\/td><td><code>-1<\/code><\/td><\/tr>\n<tr><td><code>-o<\/code><\/td><td>\u8d85\u65f6\u65f6\u95f4\uff08\u79d2\uff09<\/td><td><code>-o 3<\/code><\/td><\/tr>\n<tr><td><code>-0<\/code><\/td><td>\u5730\u5740\u4ece 0 \u5f00\u59cb\uff08\u9ed8\u8ba4 PLC \u5730\u5740\u4ece 1 \u5f00\u59cb\uff09<\/td><td><code>-0<\/code><\/td><\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u7528\u5b9e\u6218\u547d\u4ee4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Modbus TCP \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\uff08FC03\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece IP \u5730\u5740 192.168.1.100\u3001\u7aef\u53e3 502 \u7684\u8bbe\u5907\uff0c\u8bfb\u53d6\u4ece\u7ad9\u5730\u5740 1 \u7684\u4fdd\u6301\u5bc4\u5b58\u5668 0-9\uff08\u5171 10 \u4e2a\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>modpoll -m tcp -a 1 -r 1 -c 10 192.168.1.100<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8f93\u51fa\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-- Polling slave 1...\n[1]: 1234\n[2]: 5678\n[3]: 0\n[4]: 100<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. Modbus RTU \u4e32\u53e3\u901a\u4fe1<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># Linux \u5e73\u53f0\uff08\/dev\/ttyUSB0\uff09\nmodpoll -m rtu -a 1 -r 1 -c 10 -b 9600 -p none \/dev\/ttyUSB0\n\n# Windows \u5e73\u53f0\uff08COM3\uff09\nmodpoll -m rtu -a 1 -r 1 -c 10 -b 9600 -p none COM3<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u6301\u7eed\u8f6e\u8be2\u6a21\u5f0f\uff08\u76d1\u63a7\u7528\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u6bcf 500 \u6beb\u79d2\u8f6e\u8be2\u4e00\u6b21\uff0c\u65e0\u9650\u5faa\u73af\nmodpoll -m tcp -a 1 -r 1 -c 20 -1 192.168.1.100 500\n\n# \u8f93\u51fa\u5e26\u65f6\u95f4\u6233\u7684\u8f6e\u8be2\u6570\u636e\nmodpoll -m tcp -a 1 -r 1 -c 5 -1 192.168.1.100 1000 | while read line; do\n    echo \"$(date '+%H:%M:%S') $line\"\ndone<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u8bfb\u7ebf\u5708\u72b6\u6001\uff08FC01\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u8bfb\u53d6\u5730\u5740 0 \u5f00\u59cb\u7684 8 \u4e2a\u7ebf\u5708\nmodpoll -m tcp -a 1 -r 1 -c 8 -t 0 192.168.1.100<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1a<code>-t 0<\/code> \u8868\u793a\u7ebf\u5708\u7c7b\u578b\uff0c<code>-t 1<\/code> \u8868\u793a\u79bb\u6563\u8f93\u5165\uff0c<code>-t 3<\/code> \u8868\u793a\u8f93\u5165\u5bc4\u5b58\u5668\uff0c<code>-t 4<\/code> \u8868\u793a\u4fdd\u6301\u5bc4\u5b58\u5668\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u5199\u5165\u5355\u5bc4\u5b58\u5668\uff08FC06\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5c06\u534f\u8bae\u5730\u5740 0 \u7684\u5bc4\u5b58\u5668\u503c\u5199\u5165 1234\nmodpoll -m tcp -a 1 -r 1 192.168.1.100 1234<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u8bfb\u53d6 32 \u4f4d\u6d6e\u70b9\u6570\uff08Float\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f88\u591a\u5de5\u4e1a\u4eea\u8868\uff08\u5982\u6e29\u5ea6\u53d8\u9001\u5668\u3001\u6d41\u91cf\u8ba1\uff09\u4f7f\u7528\u4e24\u4e2a\u8fde\u7eed\u7684 16 \u4f4d\u4fdd\u6301\u5bc4\u5b58\u5668\u5b58\u50a8\u4e00\u4e2a IEEE 754 32 \u4f4d\u6d6e\u70b9\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u4ece\u5730\u5740 0 \u5f00\u59cb\u8bfb\u53d6 2 \u4e2a\u5bc4\u5b58\u5668\uff0c\u6309 float \u683c\u5f0f\u663e\u793a\nmodpoll -m tcp -a 1 -r 1 -c 2 -t 4:float 192.168.1.100<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">7. \u6279\u91cf\u5199\u5165\u591a\u5bc4\u5b58\u5668\uff08FC16\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u4ece\u534f\u8bae\u5730\u5740 0 \u5f00\u59cb\uff0c\u4f9d\u6b21\u5199\u5165 100, 200, 300, 400\nmodpoll -m tcp -a 1 -r 1 192.168.1.100 100 200 300 400<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">8. \u8bfb\u5199\u7ec4\u5408\u64cd\u4f5c\uff08FC23\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u8bfb\u53d6\u5730\u5740 0-4\uff085\u4e2a\u5bc4\u5b58\u5668\uff09\uff0c\u540c\u65f6\u5c06\u5730\u5740 10-11 \u5199\u5165 99, 88\nmodpoll -m tcp -a 1 -r 1 -c 5 -w 11 -q 2 192.168.1.100 99 88<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u96c6\u6210\u5230\u81ea\u52a8\u5316\u6d4b\u8bd5\u811a\u672c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modpoll \u7684\u547d\u4ee4\u884c\u7279\u6027\u4f7f\u5176\u6210\u4e3a\u81ea\u52a8\u5316\u6d4b\u8bd5\u7684\u7406\u60f3\u9009\u62e9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u8bbe\u5907\u9a8c\u6536\u6d4b\u8bd5\u811a\u672c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#!\/bin\/bash\n# Modbus \u8bbe\u5907\u5bc4\u5b58\u5668\u8bfb\u5199\u9a8c\u6536\u6d4b\u8bd5\n# \u7528\u6cd5: .\/modbus_test.sh &lt;\u8bbe\u5907IP&gt;\n\nDEVICE_IP=${1:-\"192.168.1.100\"}\nPASS=0\nFAIL=0\n\necho \"=== Modbus \u8bbe\u5907\u9a8c\u6536\u6d4b\u8bd5 ===\"\necho \"\u76ee\u6807\u8bbe\u5907: $DEVICE_IP\"\necho \"\"\n\n# \u6d4b\u8bd51: TCP \u8fde\u63a5\u6027\necho \"[TEST 1] TCP \u7aef\u53e3 502 \u8fde\u901a\u6027\"\nif timeout 3 bash -c \"echo &gt; \/dev\/tcp\/$DEVICE_IP\/502\" 2&gt;\/dev\/null; then\n    echo \"  [PASS] \u7aef\u53e3 502 \u53ef\u8fbe\"\n    PASS=$((PASS+1))\nelse\n    echo \"  [FAIL] \u7aef\u53e3 502 \u4e0d\u53ef\u8fbe\"\n    FAIL=$((FAIL+1))\nfi\n\n# \u6d4b\u8bd52: \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668 FC03\necho \"[TEST 2] \u529f\u80fd\u7801 FC03 - \u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\"\nresult=$(modpoll -m tcp -a 1 -r 1 -c 5 -o 1 $DEVICE_IP 2&gt;&amp;1)\nif echo \"$result\" | grep -qE '[[0-9]+]:'; then\n    echo \"  [PASS] FC03 \u529f\u80fd\u6b63\u5e38\"\n    PASS=$((PASS+1))\nelse\n    echo \"  [FAIL] FC03 \u8bfb\u53d6\u5931\u8d25: $result\"\n    FAIL=$((FAIL+1))\nfi\n\n# \u6d4b\u8bd53: \u5199\u5165\u4fdd\u6301\u5bc4\u5b58\u5668 FC06\necho \"[TEST 3] \u529f\u80fd\u7801 FC06 - \u5199\u5355\u5bc4\u5b58\u5668\"\n# \u5148\u8bfb\u5f53\u524d\u503c\nbefore=$(modpoll -m tcp -a 1 -r 1 -c 1 -o 1 $DEVICE_IP 2&gt;&amp;1 | grep -oP '(? \/dev\/null 2&gt;&amp;1\n# \u9a8c\u8bc1\u5199\u5165\nafter=$(modpoll -m tcp -a 1 -r 1 -c 1 -o 1 $DEVICE_IP 2&gt;&amp;1 | grep -oP '(? \/dev\/null 2&gt;&amp;1\nif [ \"$after\" = \"9999\" ]; then\n    echo \"  [PASS] FC06 \u5199\u5165\u529f\u80fd\u6b63\u5e38\"\n    PASS=$((PASS+1))\nelse\n    echo \"  [FAIL] FC06 \u5199\u5165\u5931\u8d25: \u9884\u671f9999, \u5b9e\u9645$after\"\n    FAIL=$((FAIL+1))\nfi\n\necho \"\"\necho \"=== \u6d4b\u8bd5\u7ed3\u679c: $PASS \u901a\u8fc7, $FAIL \u5931\u8d25 ===\"<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Modpoll \u4e0e\u5176\u4ed6 Modbus \u5de5\u5177\u5bf9\u6bd4<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modbus Poll<\/strong>\uff1aWindows GUI \u5de5\u5177\uff0c\u53ef\u89c6\u5316\u64cd\u4f5c\uff0c\u9002\u5408\u624b\u52a8\u8c03\u8bd5\u3002\u5b98\u7f51 <a href=\"http:\/\/www.modbustools.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">www.modbustools.com<\/a>\u3002<\/li>\n<li><strong>Modpoll<\/strong>\uff1a\u7eaf\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u8de8\u5e73\u53f0\uff0c\u9002\u5408\u811a\u672c\u81ea\u52a8\u5316\u548c\u8fdc\u7a0b\u90e8\u7f72\uff0c\u5b8c\u5168\u514d\u8d39\u3002<\/li>\n<li><strong>pymodbus<\/strong>\uff1aPython \u5e93\uff0c\u9700\u8981\u7f16\u7a0b\uff0c\u7075\u6d3b\u6027\u6700\u9ad8\uff0c\u9002\u5408\u6784\u5efa\u81ea\u5b9a\u4e49\u6d4b\u8bd5\u6846\u67b6\u3002<\/li>\n<li><strong>QModMaster<\/strong>\uff1aQt \u5199\u7684\u8de8\u5e73\u53f0 GUI \u5de5\u5177\uff0c\u5f00\u6e90\u514d\u8d39\uff0c\u529f\u80fd\u8f83\u7b80\u5355\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898\u6392\u67e5\u6307\u5357<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fde\u63a5\u8d85\u65f6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u7528 <code>ping<\/code> \u786e\u8ba4\u7f51\u7edc\u5c42\u8fde\u901a\u3002\u5bf9\u4e8e Modbus TCP\uff0c\u9ed8\u8ba4\u4f7f\u7528 502 \u7aef\u53e3\uff0c\u7528 <code>telnet 192.168.1.100 502<\/code> \u6d4b\u8bd5\u3002\u5982\u679c\u8fde\u63a5\u7acb\u5373\u65ad\u5f00\uff08\u800c\u975e\u8d85\u65f6\uff09\uff0c\u8bf4\u660e\u670d\u52a1\u5668\u62d2\u7edd\u8fde\u63a5\uff0c\u53ef\u80fd\u7aef\u53e3\u672a\u5f00\u653e\u3002\u5982\u679c\u4e00\u76f4\u7b49\u5f85\u65e0\u54cd\u5e94\uff0c\u53ef\u80fd\u662f\u9632\u706b\u5899\u62e6\u622a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bfb\u53d6\u503c\u5168\u4e3a\u96f6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u80fd\u539f\u56e0\uff1a\u4ece\u7ad9\u5730\u5740 <code>-a<\/code> \u8bbe\u7f6e\u4e0e\u5b9e\u9645\u8bbe\u5907\u4e0d\u5339\u914d\uff1b\u8d77\u59cb\u5730\u5740 <code>-r<\/code> \u7684 PLC \u5730\u5740\u5230\u534f\u8bae\u5730\u5740\u8f6c\u6362\u9519\u8bef\uff08\u5982 PLC \u5730\u5740 40001 \u5bf9\u5e94\u534f\u8bae\u5730\u5740 0\uff09\uff1b\u8be5\u6bb5\u5bc4\u5b58\u5668\u786e\u5b9e\u672a\u88ab\u914d\u7f6e\u6216\u672a\u5199\u5165\u8fc7\u6570\u636e\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RTU \u6a21\u5f0f\u8fd4\u56de\u5f02\u5e38\/\u9519\u8bef<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9010\u4e00\u786e\u8ba4\uff1a\u6ce2\u7279\u7387\uff08-b\uff09\u3001\u6570\u636e\u4f4d\uff08\u56fa\u5b9a8\u4f4d\uff09\u3001\u6821\u9a8c\u4f4d\uff08-p\uff1anone\/even\/odd\uff09\u548c\u505c\u6b62\u4f4d\u662f\u5426\u4e0e\u4ece\u7ad9\u8bbe\u5907\u4e00\u81f4\u3002RS-485 \u63a5\u7ebf\u7279\u522b\u6ce8\u610f A\uff08+\uff09\/B\uff08-\uff09\u7ebf\u5e8f\u4e0d\u80fd\u63a5\u53cd\u3002\u5efa\u8bae\u5148\u7528\u793a\u6ce2\u5668\u6216\u903b\u8f91\u5206\u6790\u4eea\u89c2\u5bdf\u603b\u7ebf\u4e0a\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6d6e\u70b9\u6570\u8bfb\u6570\u5f02\u5e38<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">32 \u4f4d\u6d6e\u70b9\u6570\u6d89\u53ca\u4e24\u4e2a 16 \u4f4d\u5bc4\u5b58\u5668\u7684\u6392\u5217\u987a\u5e8f\uff08\u5b57\u8282\u5e8f\/\u5b57\u5e8f\uff09\u3002\u4e0d\u540c\u5382\u5546\u53ef\u80fd\u4f7f\u7528 ABCD\u3001CDAB\u3001BADC\u3001DCBA \u7b49\u4e0d\u540c\u987a\u5e8f\u3002Modpoll \u9ed8\u8ba4\u4f7f\u7528 Big-Endian \u6d6e\u70b9\u683c\u5f0f\u3002\u5982\u679c\u8bfb\u6570\u660e\u663e\u5f02\u5e38\uff08\u5982 NaN \u6216\u6570\u91cf\u7ea7\u5b8c\u5168\u4e0d\u5bf9\uff09\uff0c\u5c1d\u8bd5\u7528 <code>modpoll -t 4:hex<\/code> \u5148\u770b\u539f\u59cb\u5341\u516d\u8fdb\u5236\u503c\uff0c\u624b\u52a8\u8ba1\u7b97\u786e\u8ba4\u5b57\u8282\u5e8f\u540e\u518d\u8c03\u6574\u914d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modpoll \u662f Modbus \u534f\u8bae\u8c03\u8bd5\u5de5\u5177\u94fe\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684&#8221;\u745e\u58eb\u519b\u5200&#8221;\u3002\u5b83\u7684\u6700\u5927\u4f18\u52bf\u5728\u4e8e\u8f7b\u91cf\u3001\u8de8\u5e73\u53f0\u3001\u547d\u4ee4\u884c\u9a71\u52a8\uff0c\u53ef\u4ee5\u65e0\u7f1d\u878d\u5165 Shell \u811a\u672c\u3001Python \u6d4b\u8bd5\u6846\u67b6\u548c CI\/CD \u6d41\u6c34\u7ebf\u3002\u65e0\u8bba\u662f\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u9a8c\u8bc1\u5355\u7247\u673a Modbus \u4ece\u7ad9\u3001\u81ea\u52a8\u5316\u5de5\u7a0b\u5e08\u8c03\u8bd5 PLC \u901a\u4fe1\u914d\u7f6e\uff0c\u8fd8\u662f QA \u5de5\u7a0b\u5e08\u7f16\u5199\u81ea\u52a8\u5316\u7684 Modbus \u8bbe\u5907\u9a8c\u6536\u6d4b\u8bd5\uff0c\u638c\u63e1 Modpoll \u90fd\u80fd\u663e\u8457\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f Modpoll\uff1f Modpoll \u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u547d\u4ee4\u884c&#8230;<\/p>","protected":false},"author":1,"featured_media":27977,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[198],"tags":[],"class_list":["post-43927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modbus-debugging-tool"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/43927","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=43927"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/43927\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/27977"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=43927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=43927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=43927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}