{"id":27713,"date":"2024-04-21T22:22:16","date_gmt":"2024-04-21T14:22:16","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=27713"},"modified":"2024-04-21T22:22:21","modified_gmt":"2024-04-21T14:22:21","slug":"ji-yu-libmodbus-ku-de-modbus-du-xie-xian-quan-ji-cun-qi-tong-xin-ce-shi-cheng-xu","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/27713.html","title":{"rendered":"\u57fa\u4e8elibmodbus\u5e93\u7684Modbus\u8bfb\u5199\u7ebf\u5708\u5bc4\u5b58\u5668\u901a\u4fe1\u6d4b\u8bd5\u7a0b\u5e8f"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u5728\u73b0\u4ee3\u5de5\u4e1a\u901a\u4fe1\u4e2d\uff0cModbus 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105.532 16.932 27.398 74.377 30.672 171.4 6.468 97.021-24.203 52.5-112.016 17.794-141.793-34.705-29.777-133.929-9.626-159.074 29.793z\" fill=\"url(#lb)\" transform=\"translate(67.938 .937)\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M325.477 101.51l-11.132 16.084-1.86-1.118L323.96 100.2z\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M363.904 94.28l-1.494 1.24 8.566 10.255 1.487-1.383z\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M215.386 150.719v.88l14.355 2.179v-.821z\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M144.006 125.22l.63.83 11.67-6.978-.569-.758-11.38 6.686\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M530.724 87.128l-.41.92 13.227 4.995.396-.942z\"\/><path fill-opacity=\".06\" fill=\"var(--member-color, var(--theme-color))\" d=\"M613.697 99.184l.65.711 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hidden-content-btn premium-content-vip-btn j-vip-new\" type=\"button\"><i class=\"wpcom-icon wi\"><svg aria-hidden=\"true\"><use xlink:href=\"#wi-vip-crown\"><\/use><\/svg><\/i>\u7acb\u5373\u89e3\u9501\u7279\u6743<\/button>\n                                        <div class=\"vip-price-notice premium-content-vip-price\">\n                        <div class=\"vip-price-item\" vip-index=\"0\" vip-id=\"vip1\"><img decoding=\"async\" class=\"vip-flag-icon j-lazy no-lightbox\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/08\/20230818114436591.svg\" loading=\"lazy\" title=\"\u57fa\u4e8elibmodbus\u5e93\u7684Modbus\u8bfb\u5199\u7ebf\u5708\u5bc4\u5b58\u5668\u901a\u4fe1\u6d4b\u8bd5\u7a0b\u5e8f\u63d2\u56fe\" alt=\"\u57fa\u4e8elibmodbus\u5e93\u7684Modbus\u8bfb\u5199\u7ebf\u5708\u5bc4\u5b58\u5668\u901a\u4fe1\u6d4b\u8bd5\u7a0b\u5e8f\u63d2\u56fe\" \/>\u661f\u8000\u4f1a\u5458<span class=\"vip-price\"><span>\u00a5<\/span>3.19<\/span><\/div><div class=\"vip-price-item\" vip-index=\"1\" vip-id=\"vip2\"><img decoding=\"async\" class=\"vip-flag-icon j-lazy no-lightbox\" src=\"https:\/\/image.modbus.cn\/wp-content\/uploads\/2023\/08\/20230818114919315.svg\" loading=\"lazy\" title=\"\u57fa\u4e8elibmodbus\u5e93\u7684Modbus\u8bfb\u5199\u7ebf\u5708\u5bc4\u5b58\u5668\u901a\u4fe1\u6d4b\u8bd5\u7a0b\u5e8f\u63d2\u56fe1\" alt=\"\u57fa\u4e8elibmodbus\u5e93\u7684Modbus\u8bfb\u5199\u7ebf\u5708\u5bc4\u5b58\u5668\u901a\u4fe1\u6d4b\u8bd5\u7a0b\u5e8f\u63d2\u56fe1\" \/>\u7480\u74a8\u4f1a\u5458<span class=\"vip-price\"><span>\u00a5<\/span>2.39<\/span><\/div><div class=\"vip-price-item\" vip-index=\"2\" vip-id=\"vip3\">\u66dc\u94bb\u4f1a\u5458<span class=\"vip-price\">\u514d\u8d39<\/span><\/div>                    <\/div>\n                <\/div>\n                    <\/div>\n        <div class=\"premium-content-sales\"><i class=\"wpcom-icon wi\"><svg aria-hidden=\"true\"><use xlink:href=\"#wi-huo\"><\/use><\/svg><\/i>\u5df2\u6709<span>70<\/span>\u4eba\u89e3\u9501\u67e5\u770b        <\/div>                <div class=\"hidden-content-refresh\">\n            <i class=\"wpcom-icon wi refresh-help\"><svg aria-hidden=\"true\"><use xlink:href=\"#wi-help\"><\/use><\/svg><\/i>            <div class=\"refresh-action\">\n                <div class=\"refresh-action-inner\">\n                    \u5df2\u4ed8\u8d39\uff1f<a class=\"refresh-url\" href=\"https:\/\/www.modbus.cn\/en\/login?modal-type=login\">Login<i class=\"wpcom-icon wi\"><svg aria-hidden=\"true\"><use xlink:href=\"#wi-user\"><\/use><\/svg><\/i><\/a> \u6216 <a class=\"refresh-url j-refresh-premium-content\" href=\"#\">\u5237\u65b0<i class=\"wpcom-icon wi\"><svg aria-hidden=\"true\"><use xlink:href=\"#wi-refresh\"><\/use><\/svg><\/i><\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u7a0b\u5e8f\u6982\u8ff0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u6d4b\u8bd5\u7a0b\u5e8f\u7684\u76ee\u6807\u662f\u9a8c\u8bc1 libmodbus \u5e93\u652f\u6301\u7684\u6240\u6709\u4e3b\u8981\u529f\u80fd\uff0c\u5305\u62ec\u5199\u5355\u4e2a\u7ebf\u5708\u3001\u8bfb\u7ebf\u5708\u72b6\u6001\u3001\u5199\u591a\u4e2a\u7ebf\u5708\u3001\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u3001\u8bfb\u5bc4\u5b58\u5668\u3001\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u3001\u4ee5\u53ca\u8bfb\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u7b49\u3002\u7a0b\u5e8f\u8fd0\u884c\u5728\u4e24\u79cd\u6a21\u5f0f\u4e0b\uff1aTCP\u548cRTU\uff0c\u8fd9\u662f\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u6765\u9009\u62e9\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u73af\u5883\u8bbe\u7f6e\u4e0e\u521d\u59cb\u6761\u4ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7a0b\u5e8f\u9996\u5148\u6839\u636e\u8f93\u5165\u53c2\u6570\uff08TCP \u6216 RTU\uff09\u521d\u59cb\u5316 Modbus \u4e0a\u4e0b\u6587\uff08<code>ctx<\/code>\uff09\u3002\u5bf9\u4e8e TCP \u6a21\u5f0f\uff0c\u5b83\u8fde\u63a5\u5230\u672c\u5730\u4e3b\u673a\u4e0a\u7684 1502 \u7aef\u53e3\u3002\u800c\u5bf9\u4e8e RTU \u6a21\u5f0f\uff0c\u5b83\u5219\u8bbe\u7f6e\u4e3a\u901a\u8fc7\u7279\u5b9a\u7684\u4e32\u884c\u7aef\u53e3\uff08\u5982 <code>\/dev\/ttyUSB0<\/code>\uff09\u4ee5 19200 \u6ce2\u7279\u7387\u8fdb\u884c\u901a\u8baf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e\u7ed3\u6784\u4e0e\u521d\u59cb\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u8fdb\u884c\u6d4b\u8bd5\uff0c\u7a0b\u5e8f\u9996\u5148\u5206\u914d\u5e76\u521d\u59cb\u5316\u4e86\u51e0\u4e2a\u6570\u7ec4\uff0c\u7528\u4e8e\u5b58\u50a8\u6d4b\u8bd5\u4e2d\u4f7f\u7528\u7684\u4f4d\u548c\u5bc4\u5b58\u5668\u503c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>tab_rq_bits<\/code> \u548c <code>tab_rp_bits<\/code> \u7528\u4e8e\u5b58\u50a8\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u7ebf\u5708\uff08\u4f4d\uff09\u72b6\u6001\u3002<\/li>\n\n\n\n<li><code>tab_rq_registers<\/code>\u3001<code>tab_rp_registers<\/code> \u548c <code>tab_rw_rq_registers<\/code> 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class=\"wp-block-list\">\n<li><strong>\u5199\u5355\u4e2a\u7ebf\u5708<\/strong>\uff1a\u9a8c\u8bc1\u80fd\u5426\u6210\u529f\u5199\u5165\u5e76\u8bfb\u56de\u5355\u4e2a\u7ebf\u5708\u3002<\/li>\n\n\n\n<li><strong>\u5199\u591a\u4e2a\u7ebf\u5708<\/strong>\uff1a\u9a8c\u8bc1\u80fd\u5426\u6210\u529f\u5199\u5165\u5e76\u8bfb\u56de\u591a\u4e2a\u7ebf\u5708\u3002<\/li>\n\n\n\n<li><strong>\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/strong>\uff1a\u9a8c\u8bc1\u80fd\u5426\u6210\u529f\u5199\u5165\u5e76\u8bfb\u56de\u5355\u4e2a\u5bc4\u5b58\u5668\u3002<\/li>\n\n\n\n<li><strong>\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/strong>\uff1a\u9a8c\u8bc1\u80fd\u5426\u6210\u529f\u5199\u5165\u5e76\u8bfb\u56de\u591a\u4e2a\u5bc4\u5b58\u5668\u3002<\/li>\n\n\n\n<li><strong>\u540c\u65f6\u8bfb\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/strong>\uff1a\u9a8c\u8bc1\u80fd\u5426\u6210\u529f\u5728\u4e00\u4e2a\u64cd\u4f5c\u4e2d\u540c\u65f6\u8bfb\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u5f02\u5e38\u5904\u7406<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u4e2a Modbus \u64cd\u4f5c\u540e\uff0c\u7a0b\u5e8f\u68c0\u67e5\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u4ee5\u786e\u8ba4\u64cd\u4f5c\u662f\u5426\u6210\u529f\u3002\u5982\u679c\u64cd\u4f5c\u5931\u8d25\uff0c\u7a0b\u5e8f\u4f1a\u8f93\u51fa\u9519\u8bef\u6d88\u606f\u5e76\u589e\u52a0\u5931\u8d25\u8ba1\u6570\u5668\u3002\u6d4b\u8bd5\u7ee7\u7eed\u8fdb\u884c\u76f4\u5230\u6240\u6709\u9884\u5b9a\u7684\u6d4b\u8bd5\u90fd\u5b8c\u6210\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u679c\u8f93\u51fa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u6d4b\u8bd5\u7ed3\u675f\u540e\uff0c\u7a0b\u5e8f\u4f1a\u8f93\u51fa\u6d4b\u8bd5\u7ed3\u679c\uff0c\u663e\u793a\u6210\u529f\u6216\u5931\u8d25\u7684\u64cd\u4f5c\u603b\u6570\u3002\u8fd9\u662f\u901a\u8fc7\u6bd4\u8f83\u8bf7\u6c42\u6570\u636e\u548c\u54cd\u5e94\u6570\u636e\u6765\u786e\u5b9a\u7684\uff0c\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6e05\u7406\u4e0e\u5173\u95ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d4b\u8bd5\u5b8c\u6210\u540e\uff0c\u7a0b\u5e8f\u91ca\u653e\u6240\u6709\u5206\u914d\u7684\u8d44\u6e90\uff0c\u5173\u95edModbus\u8fde\u63a5\uff0c\u5e76\u9000\u51fa\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u8fd9\u6837\u7684\u6d4b\u8bd5\u7a0b\u5e8f\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u9a8c\u8bc1Modbus\u5e93\u5728\u4e0d\u540c\u8bbe\u7f6e\u4e0b\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\uff0c\u786e\u4fdd\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u7a33\u5b9a\u8fd0\u884c\u3002\u8fd9\u4e0d\u4ec5\u5e2e\u52a9\u5f00\u53d1\u8005\u6df1\u5165\u4e86\u89e3Modbus\u534f\u8bae\u7684\u5b9e\u73b0\uff0c\u4e5f\u4e3a\u627e\u51fa\u6f5c\u5728\u7684\u95ee\u9898\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u6709\u529b\u7684\u5de5\u5177\u3002<\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>\u5728\u73b0\u4ee3\u5de5\u4e1a\u901a\u4fe1\u4e2d\uff0cModbus 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