{"id":214726,"date":"2024-05-11T16:04:58","date_gmt":"2024-05-11T08:04:58","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/214726.html"},"modified":"2024-05-11T16:05:05","modified_gmt":"2024-05-11T08:05:05","slug":"%e5%81%9a%e5%b7%a5%e6%8e%a7plc-%e7%9a%84%e4%b8%8a%e4%bd%8d%e6%9c%ba%e8%bd%af%e4%bb%b6%e5%bc%80%e5%8f%91%ef%bc%8c%e9%9c%80%e8%a6%81%e6%8e%8c%e6%8f%a1%e5%93%aa%e4%ba%9bc%e8%af%ad%e8%a8%80%e7%9a%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/214726.html","title":{"rendered":"\u505a\u5de5\u63a7plc \u7684\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\uff0c\u9700\u8981\u638c\u63e1\u54ea\u4e9bc\u8bed\u8a00\u7684\u77e5\u8bc6"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27110448\/f9788317-dcbb-4f22-a35d-96cb451293e2.webp\" alt=\"\u505a\u5de5\u63a7plc \u7684\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\uff0c\u9700\u8981\u638c\u63e1\u54ea\u4e9bc\u8bed\u8a00\u7684\u77e5\u8bc6\" \/><\/p>\n<p><p>\u505a\u5de5\u63a7PLC\uff08\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668\uff09\u7684\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u65f6\uff0c\u9700\u8981\u638c\u63e1\u7684C\u8bed\u8a00\u77e5\u8bc6\u4e3b\u8981\u5305\u62ec\uff1a<strong>\u6570\u636e\u7c7b\u578b\u548c\u53d8\u91cf\u58f0\u660e\u3001\u63a7\u5236\u8bed\u53e5\u3001\u51fd\u6570\u7f16\u7a0b\u3001\u7ed3\u6784\u4f53\u4e0e\u8054\u5408\u4f53\u3001\u6307\u9488\u64cd\u4f5c\u3001\u6587\u4ef6\u64cd\u4f5c\u548c\u4e32\u53e3\u901a\u4fe1<\/strong>\u3002\u8fd9\u4e9b\u77e5\u8bc6\u70b9\u5bf9\u4e8e\u9ad8\u6548\u3001\u7a33\u5b9a\u5730\u5f00\u53d1\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u81f3\u5173\u91cd\u8981\uff0c\u4e4b\u4e2d<strong>\u51fd\u6570\u7f16\u7a0b<\/strong>\u4e3a\u5f00\u53d1\u8fc7\u7a0b\u63d0\u4f9b\u4e86\u7ec4\u4ef6\u5316\u548c\u6a21\u5757\u5316\u7684\u53ef\u80fd\uff0c\u662f\u5b9e\u73b0\u590d\u6742\u903b\u8f91\u4e0e\u529f\u80fd\u5206\u89e3\u7684\u57fa\u7840\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u6570\u636e\u7c7b\u578b\u548c\u53d8\u91cf\u58f0\u660e<\/h3>\n<\/p>\n<p><p>\u6570\u636e\u7c7b\u578b\u5bf9\u4e8e\u4efb\u4f55\u4e00\u95e8\u7f16\u7a0b\u8bed\u8a00\u90fd\u662f\u57fa\u7840\uff0cC\u8bed\u8a00\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u6570\u636e\u5904\u7406\u9700\u6c42\u3002\u5728\u4e0ePLC\u901a\u4fe1\u65f6\uff0c\u6b63\u786e\u7684\u9009\u62e9\u6570\u636e\u7c7b\u578b\u4ee5\u5339\u914dPLC\u4e2d\u7684\u76f8\u5e94\u7c7b\u578b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4f8b\u5982\uff0c\u5982\u679cPLC\u7aef\u53e3\u8f93\u51fa\u7684\u662f\u4e00\u4e2a16\u4f4d\u7684\u6574\u6570\uff0c\u5219\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4e5f\u5e94\u8be5\u4f7f\u7528\u76f8\u5e94\u7684<code>int16_t<\/code>\u6765\u5904\u7406\u8fd9\u4e2a\u6570\u636e\uff0c\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u89e3\u6790\u548c\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><h4>\u53d8\u91cf\u58f0\u660e<\/h4>\n<\/p>\n<p><p>\u53d8\u91cf\u7684\u6b63\u786e\u58f0\u660e\u548c\u521d\u59cb\u5316\u5bf9\u4e8e\u7a0b\u5e8f\u7a33\u5b9a\u6027\u800c\u8a00\u81f3\u5173\u91cd\u8981\u3002\u5728\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4e2d\u5904\u7406\u6570\u636e\u65f6\uff0c\u52a1\u5fc5\u4fdd\u8bc1\u6bcf\u4e2a\u53d8\u91cf\u90fd\u88ab\u6b63\u786e\u521d\u59cb\u5316\uff0c\u907f\u514d\u51fa\u73b0\u4e0d\u53ef\u9884\u6599\u7684\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u63a7\u5236\u8bed\u53e5<\/h3>\n<\/p>\n<p><p>\u63a7\u5236\u8bed\u53e5\u662f\u5b9e\u73b0\u903b\u8f91\u63a7\u5236\u548c\u6d41\u7a0b\u63a7\u5236\u7684\u57fa\u7840\uff0c\u5728\u4e0ePLC\u7684\u4ea4\u4e92\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u6761\u4ef6\u8bed\u53e5\uff08<code>if-else<\/code>\uff09\u53ef\u4ee5\u6839\u636ePLC\u53cd\u9988\u7684\u6570\u636e\u6267\u884c\u4e0d\u540c\u7684\u903b\u8f91\u64cd\u4f5c\uff0c\u800c\u5faa\u73af\u8bed\u53e5\uff08<code>for<\/code>\u3001<code>while<\/code>\uff09\u53ef\u7528\u4e8e\u5904\u7406PLC\u53d1\u9001\u7684\u6570\u636e\u6d41\u3002<\/p>\n<\/p>\n<p><h4>\u5faa\u73af\u4e0e\u6761\u4ef6<\/h4>\n<\/p>\n<p><p>\u6709\u6548\u5229\u7528\u5faa\u73af\u4e0e\u6761\u4ef6\u7ed3\u6784\u4e0d\u4ec5\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801\uff0c\u8fd8\u80fd\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u662f\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u51fd\u6570\u7f16\u7a0b<\/h3>\n<\/p>\n<p><p>\u51fd\u6570\u7f16\u7a0b\u5728C\u8bed\u8a00\u5f00\u53d1\u4e2d\u5360\u636e\u6838\u5fc3\u5730\u4f4d\uff0c\u80fd\u591f\u5c06\u590d\u6742\u7684\u7a0b\u5e8f\u903b\u8f91\u5206\u89e3\u4e3a\u82e5\u5e72\u4e2a\u53ef\u91cd\u7528\u7684\u6a21\u5757\u3002\u5728\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u5408\u7406\u8bbe\u8ba1\u51fd\u6570\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd8\u80fd\u6709\u6548\u63d0\u5347\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n<p><h4>\u51fd\u6570\u7684\u5c01\u88c5<\/h4>\n<\/p>\n<p><p>\u5c06\u9891\u7e41\u4f7f\u7528\u7684\u64cd\u4f5c\u5c01\u88c5\u4e3a\u51fd\u6570\uff0c\u53ef\u4ee5\u5927\u5e45\u5ea6\u51cf\u5c11\u4ee3\u7801\u91cd\u590d\uff0c\u5e76\u4e14\u4f7f\u5f97\u7a0b\u5e8f\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\u3002\u5728\u4e0ePLC\u901a\u4fe1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u8bfb\u53d6\u3001\u5904\u7406\u548c\u53d1\u9001\u5206\u522b\u5c01\u88c5\u6210\u72ec\u7acb\u7684\u51fd\u6570\uff0c\u6709\u5229\u4e8e\u4ee3\u7801\u7684\u590d\u7528\u548c\u6269\u5c55\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u7ed3\u6784\u4f53\u4e0e\u8054\u5408\u4f53<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u590d\u6742\u6570\u636e\u65f6\uff0cC\u8bed\u8a00\u7684\u7ed3\u6784\u4f53\u4e0e\u8054\u5408\u4f53\u63d0\u4f9b\u4e86\u6709\u6548\u7684\u6570\u636e\u7ec4\u7ec7\u5f62\u5f0f\u3002\u901a\u8fc7\u628a\u76f8\u5173\u7684\u6570\u636e\u5c01\u88c5\u6210\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u5728\u51fd\u6570\u95f4\u4f20\u9012\u548c\u5904\u7406\u6570\u636e\u3002\u7ed3\u6784\u4f53\u5728\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u4e2d\u5c24\u5176\u6709\u7528\uff0c\u6bd4\u5982\u53ef\u4ee5\u7528\u6765\u5b9a\u4e49\u4e0ePLC\u901a\u4fe1\u7684\u6570\u636e\u683c\u5f0f\u3002<\/p>\n<\/p>\n<p><h4>\u6570\u636e\u7ec4\u7ec7<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528\u7ed3\u6784\u4f53\u4e0e\u8054\u5408\u4f53\u8fdb\u884c\u6570\u636e\u7ec4\u7ec7\uff0c\u4e0d\u4ec5\u80fd\u591f\u63d0\u5347\u4ee3\u7801\u7684\u6e05\u6670\u5ea6\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd8\u80fd\u591f\u63d0\u9ad8\u6570\u636e\u5904\u7406\u7684\u6548\u7387\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u6307\u9488\u64cd\u4f5c<\/h3>\n<\/p>\n<p><p>\u6307\u9488\u662fC\u8bed\u8a00\u4e2d\u975e\u5e38\u5f3a\u5927\u7684\u4e00\u4e2a\u7279\u6027\uff0c\u901a\u8fc7\u6307\u9488\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u64cd\u4f5c\u5185\u5b58\uff0c\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u4f20\u9012\u51fd\u6570\u7684\u53c2\u6570\u7b49\u3002\u5728\u4e0ePLC\u901a\u4fe1\u65f6\uff0c\u6307\u9488\u7684\u6b63\u786e\u4f7f\u7528\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6570\u636e\u5904\u7406\u7684\u6548\u7387\uff0c\u5e76\u7b80\u5316\u4ee3\u7801\u7684\u590d\u6742\u6027\u3002<\/p>\n<\/p>\n<p><h4>\u6307\u9488\u7684\u4f7f\u7528<\/h4>\n<\/p>\n<p><p>\u5728\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u6307\u9488\u5e38\u7528\u4e8e\u52a8\u6001\u6570\u636e\u7ed3\u6784\u7684\u64cd\u4f5c\u3001\u6570\u7ec4\u5904\u7406\u4ee5\u53ca\u9ad8\u6548\u7684\u6570\u636e\u4f20\u9012\uff0c\u662f\u5904\u7406\u9ad8\u6027\u80fd\u8ba1\u7b97\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u6587\u4ef6\u64cd\u4f5c<\/h3>\n<\/p>\n<p><p>\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u7ecf\u5e38\u9700\u8981\u5c06\u6570\u636e\u8bb0\u5f55\u5230\u6587\u4ef6\u4e2d\uff0c\u6216\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u914d\u7f6e\u3002C\u8bed\u8a00\u4e2d\u7684\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570\u4e3a\u8fd9\u4e00\u9700\u6c42\u63d0\u4f9b\u4e86\u652f\u6301\uff0c\u719f\u7ec3\u638c\u63e1<code>fopen<\/code>\u3001<code>fclose<\/code>\u3001<code>fread<\/code>\u3001<code>fwrite<\/code>\u7b49\u57fa\u672c\u6587\u4ef6\u64cd\u4f5c\u5bf9\u4e8e\u6570\u636e\u8bb0\u5f55\u548c\u914d\u7f6e\u8bfb\u53d6\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n<p><h4>\u6570\u636e\u8bb0\u5f55<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u6587\u4ef6\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5c06\u8fd0\u884c\u6570\u636e\u6301\u4e45\u5316\u5230\u78c1\u76d8\u4e2d\uff0c\u4e3a\u7cfb\u7edf\u7684\u76d1\u63a7\u3001\u5206\u6790\u548c\u6545\u969c\u8bca\u65ad\u63d0\u4f9b\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><h3>\u4e03\u3001\u4e32\u53e3\u901a\u4fe1<\/h3>\n<\/p>\n<p><p>\u5728\u5de5\u63a7\u9886\u57df\uff0c\u4e32\u53e3\u901a\u4fe1\u662f\u4e00\u79cd\u5e38\u89c1\u7684PLC\u4e0e\u4e0a\u4f4d\u673a\u6570\u636e\u4ea4\u6362\u65b9\u5f0f\u3002\u638c\u63e1\u5982\u4f55\u4f7f\u7528C\u8bed\u8a00\u5b9e\u73b0\u4e32\u53e3\u901a\u4fe1\uff0c\u5305\u62ec\u6253\u5f00\u4e32\u53e3\u3001\u914d\u7f6e\u4e32\u53e3\u53c2\u6570\u3001\u8bfb\u5199\u4e32\u53e3\u6570\u636e\u7b49\uff0c\u5bf9\u4e8e\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n<p><h4>\u901a\u4fe1\u5b9e\u73b0<\/h4>\n<\/p>\n<p><p>\u5b9e\u73b0\u4e32\u53e3\u901a\u4fe1\u6d89\u53ca\u5230\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42API\u7684\u8c03\u7528\u3002\u901a\u8fc7\u5b66\u4e60\u8fd9\u4e9b\u77e5\u8bc6\uff0c\u5f00\u53d1\u8005\u4e0d\u4ec5\u80fd\u591f\u5b9e\u73b0\u4e0ePLC\u7684\u6570\u636e\u901a\u4fe1\uff0c\u8fd8\u80fd\u591f\u6df1\u5165\u7406\u89e3\u64cd\u4f5c\u7cfb\u7edf\u7684\u5de5\u4f5c\u673a\u5236\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. \u9700\u8981\u638c\u63e1\u54ea\u4e9bC\u8bed\u8a00\u57fa\u7840\u77e5\u8bc6\u624d\u80fd\u8fdb\u884c\u5de5\u63a7PLC\u7684\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\uff1f<\/strong><\/p>\n<p>\u5728\u8fdb\u884c\u5de5\u63a7PLC\u7684\u4e0a\u4f4d\u673a\u8f6f\u4ef6\u5f00\u53d1\u65f6\uff0c\u9700\u8981\u638c\u63e1\u4ee5\u4e0bC\u8bed\u8a00\u7684\u57fa\u7840\u77e5\u8bc6\uff1a<\/p>\n<ul>\n<li>\u53d8\u91cf\u548c\u6570\u636e\u7c7b\u578b\uff1a\u4e86\u89e3C\u8bed\u8a00\u4e2d\u7684\u53d8\u91cf\u5b9a\u4e49\u548c\u6570\u636e\u7c7b\u578b\uff0c\u638c\u63e1\u5982\u4f55\u58f0\u660e\u548c\u4f7f\u7528\u4e0d\u540c\u7c7b\u578b\u7684\u53d8\u91cf\u3002<\/li>\n<li>\u63a7\u5236\u6d41\u8bed\u53e5\uff1a\u4e86\u89e3C\u8bed\u8a00\u4e2d\u7684\u6761\u4ef6\u8bed\u53e5\uff08if-else\u3001switch-case\uff09\u548c\u5faa\u73af\u8bed\u53e5\uff08for\u3001while\u3001do-while\uff09\uff0c\u7528\u4e8e\u8fdb\u884c\u6d41\u7a0b\u63a7\u5236\u548c\u6761\u4ef6\u5224\u65ad\u3002<\/li>\n<li>\u6570\u7ec4\u548c\u6307\u9488\uff1a\u638c\u63e1C\u8bed\u8a00\u4e2d\u7684\u6570\u7ec4\u548c\u6307\u9488\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u8fd9\u5728\u5de5\u63a7PLC\u7684\u6570\u636e\u5904\u7406\u548c\u5b58\u50a8\u4e2d\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/li>\n<li>\u51fd\u6570\u548c\u6a21\u5757\u5316\u7f16\u7a0b\uff1a\u5b66\u4e60\u5982\u4f55\u5b9a\u4e49\u548c\u8c03\u7528\u51fd\u6570\uff0c\u5c06\u7a0b\u5e8f\u5212\u5206\u4e3a\u6a21\u5757\u5316\u7684\u7ed3\u6784\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<li>\u6587\u4ef6\u64cd\u4f5c\uff1a\u4e86\u89e3C\u8bed\u8a00\u4e2d\u7684\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570\uff0c\u7528\u4e8e\u8bfb\u5199\u6587\u4ef6\u548c\u914d\u7f6e\u4fe1\u606f\u7684\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<p><strong>2. 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