"# \u63a2\u7d22Modbus\u901a\u4fe1\u5e93\uff1alibmodbus\u7248\u672c\u68c0\u6d4b\u4e0e\u529f\u80fd\u63a2\u7d22\n\n> 2024-04-21 | 2024-04-21\n> https:\/\/www.modbus.cn\/en\/27725.html\n\n**Modbus\u7f16\u7a0b\u5f00\u53d1**\n\n---\n\n\u5728\u5de5\u4e1a\u63a7\u5236\u548c\u81ea\u52a8\u5316\u9886\u57df\uff0cModbus\u901a\u4fe1\u534f\u8bae\u4e00\u76f4\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\u3002\u4e3a\u4e86\u7b80\u5316Modbus\u901a\u4fe1\u7684\u5f00\u53d1\u8fc7\u7a0b\uff0c\u5f00\u53d1\u8005\u4eec\u521b\u5efa\u4e86\u8bb8\u591aModbus\u901a\u4fe1\u5e93\uff0c\u5176\u4e2d\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u5e93\u5c31\u662flibmodbus\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528libmodbus\u8fdb\u884c\u7248\u672c\u68c0\u6d4b\u548c\u529f\u80fd\u63a2\u7d22\u3002\n\n\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u4e00\u4e2a\u7b80\u5355\u7684C\u7a0b\u5e8f\uff0c\u8be5\u7a0b\u5e8f\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528libmodbus\u5e93\u8fdb\u884c\u7248\u672c\u68c0\u6d4b\u5e76\u83b7\u53d6\u76f8\u5173\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u7a0b\u5e8f\u7684\u4ee3\u7801\uff1a\n\n```\n\/*\n * \u7248\u6743\u6240\u6709 \u00a9 St\u00e9phane Raimbault <stephane.raimbault@gmail.com>\n *\n * SPDX-License-Identifier: BSD-3-Clause\n *\/\n\n#include <modbus.h>  \/\/ \u5305\u542blibmodbus\u5934\u6587\u4ef6\n#include <stdio.h>   \/\/ \u5305\u542b\u6807\u51c6\u8f93\u5165\u8f93\u51fa\u5934\u6587\u4ef6\n\nint main(void)\n{\n    \/\/ \u6253\u5370\u7f16\u8bd1\u65f6\u4f7f\u7528\u7684libmodbus\u7248\u672c\u4fe1\u606f\n    printf("Compiled with libmodbus version %s (%06X)\\n",\n           LIBMODBUS_VERSION_STRING,\n           LIBMODBUS_VERSION_HEX);\n    \/\/ \u6253\u5370\u94fe\u63a5\u65f6\u4f7f\u7528\u7684libmodbus\u7248\u672c\u4fe1\u606f\n    printf("Linked with libmodbus version %d.%d.%d\\n",\n           libmodbus_version_major,\n           libmodbus_version_minor,\n           libmodbus_version_micro);\n\n    \/\/ \u68c0\u67e5libmodbus\u7248\u672c\u662f\u5426\u5927\u4e8e\u7b49\u4e8e2.1.0\uff0c\u5982\u679c\u662f\u5219\u6253\u5370\u76f8\u5173\u4fe1\u606f\n    if (LIBMODBUS_VERSION_CHECK(2, 1, 0)) {\n        printf("The functions to read\/write float values are available (2.1.0).\\n");\n    }\n\n    \/\/ \u68c0\u67e5libmodbus\u7248\u672c\u662f\u5426\u5927\u4e8e\u7b49\u4e8e2.1.1\uff0c\u5982\u679c\u662f\u5219\u6253\u5370\u76f8\u5173\u4fe1\u606f\n    if (LIBMODBUS_VERSION_CHECK(2, 1, 1)) {\n        printf("Oh gosh, brand new API (2.1.1)!\\n");\n    }\n\n    return 0;\n}\n```\n\n\u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528libmodbus\u5e93\u4e2d\u7684\u4e00\u4e9b\u57fa\u672c\u529f\u80fd\u3002\u9996\u5148\uff0c\u5b83\u6253\u5370\u4e86\u5728\u7f16\u8bd1\u65f6\u4f7f\u7528\u7684libmodbus\u7248\u672c\u4fe1\u606f\uff0c\u5305\u62ec\u7248\u672c\u5b57\u7b26\u4e32\u548c\u5341\u516d\u8fdb\u5236\u8868\u793a\u7684\u7248\u672c\u53f7\u3002\u63a5\u7740\uff0c\u5b83\u6253\u5370\u4e86\u94fe\u63a5\u65f6\u4f7f\u7528\u7684libmodbus\u7248\u672c\u4fe1\u606f\uff0c\u5305\u62ec\u4e3b\u7248\u672c\u53f7\u3001\u6b21\u7248\u672c\u53f7\u548c\u5fae\u7248\u672c\u53f7\u3002\u7136\u540e\uff0c\u5b83\u4f7f\u7528`LIBMODBUS_VERSION_CHECK`\u5b8f\u68c0\u67e5\u4e86libmodbus\u7684\u7248\u672c\uff0c\u5982\u679c\u7248\u672c\u5927\u4e8e\u7b49\u4e8e2.1.0\uff0c\u5c31\u4f1a\u6253\u5370\u76f8\u5e94\u7684\u4fe1\u606f\uff0c\u8868\u660e\u652f\u6301\u8bfb\u5199\u6d6e\u70b9\u6570\u503c\u7684\u529f\u80fd\u3002\u6700\u540e\uff0c\u5b83\u68c0\u67e5\u4e86\u7248\u672c\u662f\u5426\u5927\u4e8e\u7b49\u4e8e2.1.1\uff0c\u5e76\u6253\u5370\u4e86\u76f8\u5e94\u7684\u4fe1\u606f\u3002\n\n\u901a\u8fc7\u8fd9\u6bb5\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u83b7\u53d6\u548c\u68c0\u67e5libmodbus\u7684\u7248\u672c\u4fe1\u606f\uff0c\u5e76\u6839\u636e\u7248\u672c\u4fe1\u606f\u6765\u51b3\u5b9a\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u7279\u5b9a\u7684\u529f\u80fd\u3002\u8fd9\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4fbf\u5229\uff0c\u4f7f\u5f97\u5728Modbus\u901a\u4fe1\u5f00\u53d1\u4e2d\u66f4\u52a0\u9ad8\u6548\u548c\u53ef\u9760\u3002\n\n\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528libmodbus\u5e93\u8fdb\u884c\u7248\u672c\u68c0\u6d4b\u548c\u529f\u80fd\u63a2\u7d22\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u4e86\u89e3\u548c\u5e94\u7528libmodbus\u5e93\uff0c\u4ece\u800c\u63d0\u5347Modbus\u901a\u4fe1\u5f00\u53d1\u7684\u6548\u7387\u548c\u8d28\u91cf\u3002\n\n---\n*modbus.cn*\n"