"# \u57fa\u672c\u53c2\u6570\u8bf4\u660e\uff08Modbus \u7ec4\u6001\u63a7\u4ef6\u6559\u7a0b1\uff09\n\n> 2022-03-22 | 2026-07-01\n> https:\/\/www.modbus.cn\/en\/7176.html\n\n**Modbus \u534f\u8bae\u6587\u6863, \u89e6\u63a7\u5c4f\u5f00\u53d1\u6587\u6863**\n\n---\n\nModbus\u534f\u8bae\u7684\u5e94\u7528\uff0c\u672c\u7ae0\u8282\u4e3b\u8981\u4ece\u4ee5\u4e0b\u51e0\u90e8\u5206\u8bf4\u660e\n\n- \u5f00\u542f\u534f\u8bae\n\n- \u914d\u7f6e\u4e3b\u4ece\u673a\n\n- \u521b\u5efa\u53d8\u91cf\n\n- \u53d8\u91cf\u5730\u5740\u548c\u503c\u7684\u5173\u7cfb\n\n### 1.1 \u5f00\u542f\u534f\u8bae\n\nModbus \u534f\u8bae\u7684\u914d\u7f6e\u754c\u9762\u5728VisualTFT \u4e0a\u4f4d\u673a\u7684\u83dc\u5355\u680f\u3010\u5de5\u5177\u3011\u2192\u3010\u534f\u8bae\u4e0e\u53d8\u91cf\u8bbe\u7f6e\u2026\u3011\uff0c\u70b9\u51fb\u5de6\u4fa7\u6587\u4ef6\u8def\u5f84\uff0c\u5728\u53f3\u4fa7\u7684\u534f\u8bae\u8bbe\u7f6e\u680f\uff0c\u8bbe\u7f6e\u534f\u8bae\u7c7b\u578b\uff0c\u5982\u9009\u62e9Modbus\u4e3b\u673a\uff0c\u542f\u7528\u534f\u8bae\uff0c\u5982\u4e0b\u6240\u793a\n\nmodbus\u534f\u8bae\u5f00\u542f\u540e\uff0c\u5728\u7ec4\u6001\u754c\u9762\u4e0a\uff0c\u63a7\u4ef6\u624d\u80fd\u663e\u793a\u3010\u5173\u8054\u53d8\u91cf\u3011\n\n![Mb_Open](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_Open.png)\n\n### 1.2 \u914d\u7f6e\u4e3b\u4ece\u673a\n\n#### \u4e3b\u673a\u6a21\u5f0f\n\nModbus\u4e3b\u673a\u7684\u914d\u7f6e\uff0c\u53c2\u6570\u5982\u4e0b\u6240\u793a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_poll.png)\n\n- \u542f\u7528\u534f\u8bae\uff1a\u9700\u8981\u542f\u7528\u534f\u8bae\uff0c\u624d\u652f\u6301Modbus\u534f\u8bae\n\n- \u534f\u8bae\u7c7b\u578b\uff1a\u9009\u62e9Modbus\u4e3b\u673a\n\n- \u8f6e\u8be2\u5468\u671f\uff1a\u65e0\u6548\u53c2\u6570\uff0c\u4e0d\u7528\u8bbe\u7f6e\n\n- \u8f6e\u8be2\u5ef6\u65f6\uff1a\u5c4f\u4f5c\u4e3b\u673a\u65f6\uff0c\u53d1\u9001\u8bf7\u6c42\u6307\u4ee4\uff0c\u5230\u5c4f\u5e55\u5e94\u7b54\u540e\uff0c\u7b49\u5f85\u53d1\u9001\u4e0b\u4e00\u6761\u8bf7\u6c42\u6307\u4ee4\u7684\u65f6\u95f4\n\n- \u5e94\u7b54\u8d85\u65f6\uff1a\u5c4f\u4f5c\u4e3b\u673a\u65f6\uff0c\u5141\u8bb8\u4ece\u673a\u7684\u6700\u5927\u5ef6\u65f6\uff0c\u9ed8\u8ba4100\u6beb\u79d2\n\n- \u8fde\u7eed\u8bfb\u53d6\uff1a\u8bbe\u7f6e\u8fde\u7eed\u5730\u5740\u53d8\u91cf\u7684\u6700\u5927\u8bfb\u53d6\u6570\n\n- \u4f18\u5316\u8bfb\u53d6\uff1a\u5f00\u542f\u4f18\u5316\u8bfb\u53d6\u540e\uff0c\u53ea\u8bfb\u53d6\u4e0e\u5f53\u524d\u753b\u9762\u76f8\u5173\u7684\u53d8\u91cf\n\n- \u5b58\u50a8\u8bbe\u7f6e \uff1a\u5f00\u542f\u5b58\u50a8\u540e\uff0cFlash\u5730\u57400~2048\uff0c\u7ea62K\u4e3aModbus\u53d8\u91cf\u5b58\u50a8\u6240\u6709\uff0c\u5176\u4ed6\u5b58\u50a8\u5e94\u89c4\u907f\u6b64\u5730\u5740\uff01\uff01\uff01\u4e0d\u5b58\u50a8\uff1a\u4e0d\u5b58\u50a8\uff0c\u65ad\u7535\u91cd\u542f\u540e\u53d8\u91cf\u6062\u590d\u9ed8\u8ba4\u503c\u5168\u90e8\u5b58\u50a8\uff1a\u4e0d\u63a8\u8350\uff0c\u56e0\u4e3a\u9891\u7e41\u5b58\u50a8\u4f1a\u5bfc\u81f4FLASH\u574f\u5757\u589e\u52a0\u5b58\u50a8\u6307\u5b9a\u53d8\u91cf\uff1a\u63a8\u8350\u4f7f\u7528\uff0c\u4e00\u822c\u7528\u6765\u5b58\u50a8\u5f88\u5c11\u66f4\u6539\u7684\u7cfb\u7edf\u914d\u7f6e\u53c2\u6570\n\n- \u5b58\u50a8\u6807\u8bb0\uff1a\u8bc6\u522b\u5b58\u50a8\u5728\u5c4f\u5e55\u4e2d\u7684\u6570\u636e\u7248\u672c\u6807\u8bb0\uff0c \u5f53\u5b58\u50a8\u6570\u636e\u683c\u5f0f\u53d1\u751f\u6539\u52a8\u65f6\uff0c\u4e00\u822c\u9700\u8981\u624b\u52a8\u4fee\u6539\u6b64\u5b58\u50a8\u6807\u8bb0\u503c\n\n![Mb_slave](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_slave.png)\n\n#### \u4ece\u673a\u6a21\u5f0f\n\n- \u542f\u7528\u534f\u8bae\uff1a\u9700\u8981\u542f\u7528\u534f\u8bae\uff0c\u624d\u652f\u6301Modbus\u534f\u8bae\n\n- \u534f\u8bae\u7c7b\u578b\uff1a\u9009\u62e9Modbus\u4ece\u673a\n\n- \u4ece\u673a\u5730\u5740\uff1a\u9ed8\u8ba4\u4e3a1\n\n- \u5b58\u50a8\u8bbe\u7f6e \uff1a\u5f00\u542f\u5b58\u50a8\u540e\uff0cFlash\u5730\u57400~2048\uff0c\u7ea62K\u4e3aModbus\u53d8\u91cf\u5b58\u50a8\u6240\u79c1\u6709\uff0c\u5176\u4ed6\u5b58\u50a8\u5e94\u89c4\u907f\u6b64\u5730\u5740\uff01\uff01\uff01\u4e0d\u5b58\u50a8\uff1a\u4e0d\u5b58\u50a8\uff0c\u65ad\u7535\u91cd\u542f\u540e\u53d8\u91cf\u6062\u590d\u9ed8\u8ba4\u503c\u5168\u90e8\u5b58\u50a8\uff1a\u4e0d\u63a8\u8350\uff0c\u56e0\u4e3a\u9891\u7e41\u5b58\u50a8\u4f1a\u5bfc\u81f4FLASH\u574f\u5757\u589e\u52a0\u5b58\u50a8\u6307\u5b9a\u53d8\u91cf\uff1a\u63a8\u8350\u4f7f\u7528\uff0c\u4e00\u822c\u7528\u6765\u5b58\u50a8\u5f88\u5c11\u66f4\u6539\u7684\u7cfb\u7edf\u914d\u7f6e\u53c2\u6570\n\n- \u5b58\u50a8\u6807\u8bb0\uff1a\u8bc6\u522b\u5b58\u50a8\u5728\u5c4f\u5e55\u4e2d\u7684\u6570\u636e\u7248\u672c\u6807\u8bb0\uff0c\u5f53\u5b58\u50a8\u6570\u636e\u683c\u5f0f\u53d1\u751f\u6539\u52a8\u65f6\uff0c\u4e00\u822c\u9700\u8981\u624b\u52a8\u4fee\u6539\u6b64\u5b58\u50a8\u6807\u8bb0\u503c\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_slave.png)\n\n### 1.3 \u521b\u5efa\u53d8\u91cf\n\n\u70b9\u51fb\u3010\u53d8\u91cf\u5b9a\u4e49\u3011\uff0c\u5728\u70b9\u51fb\u3010\u6dfb\u52a0\u3011\uff0c\u5373\u53ef\u6dfb\u52a0\u4e00\u4e2a\u53d8\u91cf\uff0c\u5982\u4e0b\u6240\u793a\n\n![Mb_CreatVariable](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_CreatVariable.png)\n\n#### \u53d8\u91cf\u5b9a\u4e49\n\n\u8be6\u7ec6\u53d8\u91cf\u89e3\u6790\u5982\u4e0b\uff0c\u5982\u4e0b\u6240\u793a\n\n![Mb_VariableDefinition](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_VariableDefinition.png)\n\n- \u540d\u79f0\uff1a\u9ed8\u8ba4\u7684\u53d8\u91cf\u540d\u79f0\u4e3a\u201cVarialbe1\u3001Varialbe2\u3001Varialbe3\u2026\u2026\u201d\uff0c\u53ef\u4ee5\u5b9a\u4e49\u6709\u610f\u4e49\u7684\u540d\u79f0\uff0c\u5982\uff1a\u673a\u7ec4\u72b6\u6001\uff1b\u5982\u679c\u9700\u8981\u5bf9\u53d8\u91cf\u5206bit\u542b\u4e49\uff0c\u9ed8\u8ba4\u7684\u540d\u79f0\u4e3a\u201cField1\u3001Field2\u3001Field3\u2026\u2026\u201d\uff0c \u53ef\u4ee5\u5b9a\u4e49\u6709\u610f\u4e49\u7684\u540d\u79f0\uff0c\u5982\uff1a\u5f00\/\u5173\u673a\u3001\u8fd0\u884c\/\u505c\u6b62\n\n- \u683c\u5f0f\uff1a\u652f\u6301\u77ed\u6574\u5f62\u3001\u957f\u6574\u578b\u3001\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\n\n- \u7b26\u53f7\uff1a\u53ef\u8bbe\u7f6e\u65e0\u7b26\u53f7\u3001\u6709\u7b26\u53f7\n\n- \u8bfb\u5199\u8bbe\u7f6e\uff1a\u8bbe\u7f6e\u53d8\u91cf\u7684\u8bfb\u5199\u6743\u9650\uff0c\u652f\u6301\u53ef\u8bfb\u5199\u3001\u53ea\u8bfb\u53d6\u3001\u53ea\u5199\u5165\n\n- \u9ed8\u8ba4\u503c\uff1a\u9ed8\u8ba4\u663e\u793a\u503c\n\n- \u6570\u503c\u8f6c\u6362\uff1a\u5bf9\u53d8\u91cf\u8fdb\u884c\u8f6c\u6362\uff0c\u4f8b\u5982\uff1a\u5b9e\u9645\u503c=\u539f\u59cb\u503c*\u7f29\u653e+\u5e73\u79fb\n\n- \u663e\u793a\u683c\u5f0f\uff1a\u8bbe\u7f6e\u6574\u6570\u548c\u5c0f\u6570\u90e8\u5206\u7684\u4f4d\u6570\n\n- \u6570\u7ec4\u7c7b\u578b\uff1a\u5f00\u542f\u6570\u7ec4\u7c7b\u578b\uff0c\u4ece\u8be5\u53d8\u91cf\u7684\u5730\u5740\u5f00\u59cb\uff0c\u64cd\u4f5c\u8fde\u7eedN\u4e2a\u5bc4\u5b58\u5668\n\n- \u662f\u5426\u50a8\u5b58\uff1a\u5f53\u5728\u914d\u7f6eModbus\u4e3b\/\u4ece\u534f\u8bae\u65f6\u5f00\u542f\u5b58\u50a8\u8bbe\u7f6e\uff0c\u6b64\u5904\u82e5\u9009\u62e9\u5b58\u50a8\uff0c\u53ef\u6389\u7535\u4fdd\u5b58\u6570\u636e\n\n#### \u53c2\u6570\n\n\u8be6\u7ec6\u53c2\u6570\u8bbe\u7f6e\u89e3\u6790\u5982\u4e0b\u6240\u793a\n\n![Mb_paramter](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_paramter.png)\n\n- \u53d8\u91cf\u7c7b\u578b\uff1a\u7ebf\u5708\u3001\u79bb\u6563\u8f93\u5165\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\u3001\u8f93\u5165\u5bc4\u5b58\u5668\u3001\u5185\u5b58\u53d8\u91cf\u3001\u7cfb\u7edf\u53d8\u91cf\n\n- \u4ece\u673a\u5730\u5740\uff1a\u5c4f\u4f5c\u4e3b\u673a\u65f6\uff0c\u624d\u9700\u8981\u8bbe\u7f6e\n\n- \u53d8\u91cf\u5730\u5740\uff1a\u53d8\u91cf\uff08\u6216\u5bc4\u5b58\u5668\uff09\u7684\u5730\u5740\uff0c16\u8fdb\u5236\u586b\u5199\n\n- \u521d\u59cb\u5316\u4ece\u673a\uff1a\u5c4f\u4f5c\u4e3b\u673a\u65f6\uff0c\u5c4f\u4e0a\u7535\u540e\uff0c\u628a\u53d8\u91cf\u7684\u503c\u5199\u5165\u4ece\u673a\u8bbe\u5907\n\n- \u8bfb\u53d6\u5931\u8d25\u5f52\u96f6\uff1a\u5c4f\u4f5c\u4e3b\u673a\u65f6\uff0c\u5f53\u53d8\u91cf\u8bfb\u53d6\u5931\u8d25\u65f6\uff0c\u53d8\u91cf\u7684\u503c\u5f52\u96f6\n\n### 1.4 \u53d8\u91cf\u5730\u5740\u548c\u503c\u7684\u5173\u7cfb\n\n#### \u7ebf\u5708\/\u79bb\u6563\u6570\u636e\n\n\u521b\u5efa\u4e00\u4e2a\u7ebf\u5708\u6216\u79bb\u6563\u8f93\u5165\u5bc4\u5b58\u5668\uff0c\u53d8\u91cf\u683c\u5f0f\u4e3a\u77ed\u6574\u578b\uff0c\u5219\u91cc\u9762\u542b\u670916\u4e2a\u7ebf\u5708\uff08\u4ece\u4e0a\u5230\u4e0b\uff0c\u4f9d\u6b21\u4e3abit0\u2026.bit15\uff09\uff0c\u5047\u8bbe\u8be5\u53d8\u91cf\u5730\u5740\u4e3a0x0000\uff0c\u90a3\u4e48\u53d8\u91cf\u5305\u542b0x0000~0x000F\u5730\u5740\u8303\u56f4\u5185\u7684\u53d8\u91cf\uff0c\u4e00\u4e2abit\u5bf9\u5e94\u4e00\u4e2a\u7ebf\u5708\uff0c\u5982\u4e0b\u6240\u793a\n\n![Mb_coilsBit](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_coilsBit.png)\n\n#### \u5b57\u7b26\u4e32\u7c7b\u578b\n\n\u521b\u5efa\u4e00\u4e2a\u4fdd\u5b58\u5bc4\u5b58\u5668\uff0c\u53d8\u91cf\u683c\u5f0f\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b\uff08\u9ed8\u8ba432\u4e2a\u5b57\u7b26\uff09\uff0c\u5047\u8bbe\u8be5\u53d8\u91cf\u7684\u5730\u5740\u4e3a0x0000\uff0c\u90a3\u4e48\u6b64\u5b57\u7b26\u4e32\u5bf9\u5e94\u5305\u542b0x0000~0x000F\u5730\u5740\u8303\u56f4\u5185\u7684\u53d8\u91cf\uff0c\u4e00\u4e2a\u5730\u5740\u5bf9\u5e94\u4e24\u4e2a\u5b57\u7b26\n\n![Mb_Sring](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_Sring.png)\n\n\u5047\u8bbe0x0000\u5730\u5740\u7684\u4fdd\u5b58\u5bc4\u5b58\u5668\uff0c\u503c\u4e3a\u2018abcdefghij\u2019\uff0c\u5982\u4e0b\u6240\u793a\n\n![Mb_SringValue](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_SringValue.png)\n\n#### \u6570\u7ec4\n\n\u521b\u5efa\u4e00\u4e2a\u8f93\u5165\u5bc4\u5b58\u5668\uff0c\u4e14\u4e3a\u6570\u7ec4\u7c7b\u578b(\u9ed8\u8ba4\u6570\u7ec4\u5927\u5c0f\u4e3a10\uff0c\u4e0b\u6807\u4ece0\u5f00\u59cb)\uff0c\u5047\u8bbe\u8be5\u53d8\u91cf\u7684\u5730\u5740\u4e3a0x0000\uff0c\u90a3\u4e48\u6b64\u53d8\u91cf\u8868\u793a\u4ece0x0000\u5f00\u59cb\u7684\u8fde\u7eed10\u4e2a\u53d8\u91cf\uff0c\u6570\u7ec4\u4e0b\u6807\u5bf9\u5e94\u4e00\u4e2a\u53d8\u91cf\n\n![Mb_Input](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_Input.png)\n\n\u5047\u8bbe\u521b\u5efa\u4e00\u4e2a\u8f93\u5165\u5bc4\u5b58\u5668\u4e3aVoltage\u7684\u53d8\u91cf\uff0c\u6570\u7ec4\u7c7b\u578b\uff0c\u5927\u5c0f\u4e3a10\uff0c\u5219\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b\u6240\u793a\n\n![Mb_array](https:\/\/image.modbus.cn\/wp-content\/uploads\/2022\/03\/Mb_array.png)\n\n---\n*modbus.cn*\n"