{"id":2747,"date":"2019-07-31T06:23:44","date_gmt":"2019-07-31T06:23:44","guid":{"rendered":""},"modified":"2019-07-31T14:24:05","modified_gmt":"2019-07-31T06:24:05","slug":"%e4%bc%a0%e6%84%9f%e5%99%a8%e5%92%8cplc%e6%98%af%e6%80%8e%e6%a0%b7%e8%81%94%e7%b3%bb%e7%9a%84","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2747","title":{"rendered":"\u4f20\u611f\u5668\u548cPLC\u662f\u600e\u6837\u8054\u7cfb\u7684"},"content":{"rendered":"

\n\tPLC<\/u> \u7684\u6570\u5b57\u91cf\u8f93\u5165\u63a5\u53e3<\/u>\u5e76\u4e0d\u590d\u6742\uff0cPLC \u4e3a\u4e86\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\uff0c\u8f93\u5165\u63a5\u53e3\u90fd\u91c7\u7528\u5149\u7535\u8026\u5408\u5668<\/u>\u6765\u9694\u79bb\u8f93\u5165\u4fe1\u53f7\u4e0e\u5185\u90e8\u5904\u7406\u7535\u8def<\/u>\u7684\u4f20\u8f93\u3002\u56e0\u6b64\uff0c\u8f93\u5165\u7aef\u7684\u4fe1\u53f7\u53ea\u662f\u9a71\u52a8\u5149\u7535\u8026\u5408<\/u>\u5668\u7684\u5185\u90e8 LED<\/u> \u5bfc\u901a\uff0c\u88ab\u5149\u7535\u8026\u5408\u5668\u7684\u5149\u7535\u7ba1\u63a5\u6536\uff0c\u5373\u53ef\u4f7f\u5916\u90e8\u8f93\u5165\u4fe1\u53f7\u53ef\u9760\u4f20\u8f93\u3002<\/p>\n

\n\t\u76ee\u524d PLC \u6570\u5b57\u91cf\u8f93\u5165\u7aef\u53e3\u4e00\u822c\u5206\u5355\u7aef\u5171\u70b9\u4e0e\u53cc\u7aef\u8f93\u5165\uff0c\u7531\u4e8e\u6709\u533a\u522b\uff0c\u7528\u6237\u5728\u9009\u914d\u5916\u90e8\u4f20\u611f\u5668<\/u>\u65f6\u63a5\u6cd5\u4e0a\u9700\u8981\u4e00\u5b9a\u7684\u533a\u5206\u4e0e\u4e86\u89e3\u624d\u80fd\u6b63\u786e\u4f7f\u7528\u4f20\u611f\u5668\u4e0e PLC \u4e3a\u540e\u671f\u7684\u7f16\u7a0b\u5de5\u4f5c\u548c\u7cfb\u7edf\u7a33\u5b9a\u5960\u5b9a\u57fa\u7840\u3002<\/p>\n

\n\t <\/div>\n

\n\t\"\u4f20\u611f\u5668\u548cPLC\u662f\u600e\u6837\u8054\u7cfb\u7684\"<\/p>\n

\n\t\u8f93\u5165\u7535\u8def\u7684\u5f62\u5f0f<\/h2>\n

\n\t1\u3001\u8f93\u5165\u7c7b\u578b\u7684\u5206\u7c7b<\/p>\n

\n\tPLC\u7684\u6570\u5b57\u91cf\u8f93\u5165\u7aef\u5b50<\/u>\uff0c\u6309\u7535\u6e90\u5206\u76f4\u6d41\u4e0e\u4ea4\u6d41\uff0c\u6309\u8f93\u5165\u63a5\u53e3\u5206\u7c7b\u7531\u5355\u7aef\u5171\u70b9\u8f93\u5165\u4e0e\u53cc\u7aef\u8f93\u5165\uff0c\u5355\u7aef\u5171\u70b9\u63a5\u7535\u6e90\u6b63\u6781\u4e3aSINK\uff08sink Current \u62c9\u7535\u6d41<\/u>\uff09\uff0c\u5355\u7aef\u5171\u70b9\u63a5\u7535\u6e90\u8d1f\u6781\u4e3aSRCE\uff08source Current \u704c\u7535\u6d41\uff09\u3002<\/p>\n

\n\t2\u3001\u8bcd\u8bed\u7684\u6982\u8ff0<\/p>\n

\n\tSINK\u6f0f\u578b\u4e3a\u7535\u6d41\u4ece\u8f93\u5165\u7aef\u6d41\u51fa\uff0c\u90a3\u4e48\u8f93\u5165\u7aef\u4e0e\u7535\u6e90\u8d1f\u6781\u76f8\u8fde\u5373\u53ef\uff0c\u8bf4\u660e\u63a5\u53e3\u5185\u90e8\u7684\u5149\u7535\u8026\u5408\u5668\u4e3a\u5355\u7aef\u5171\u70b9\u4e3a\u7535\u6e90\u6b63\u6781\uff0c\u53ef\u63a5NPN\u578b\u4f20\u611f\u5668\u3002<\/p>\n

\n\tSOURCE\u6e90\u578b\u4e3a\u7535\u6d41\u4ece\u8f93\u5165\u7aef\u6d41\u8fdb\uff0c\u90a3\u4e48\u8f93\u5165\u7aef\u4e0e\u7535\u6e90\u6b63\u6781\u76f8\u8fde\u5373\u53ef\uff0c\u8bf4\u660e\u63a5\u53e3\u5185\u90e8\u7684\u5149\u7535\u8026\u5408\u5668\u4e3a\u5355\u7aef\u5171\u70b9\u4e3a\u7535\u6e90\u8d1f\u6781\uff0c\u53ef\u63a5PNP\u578b\u4f20\u611f\u5668\u3002<\/p>\n

\n\t\u63a5\u8fd1\u5f00\u5173<\/u>\u4e0e\u5149\u7535\u5f00\u5173<\/u>\u4e09\u3001\u56db\u7ebf\u8f93\u51fa\u5206 NPN \u4e0e PNP \u8f93\u51fa\uff0c\u5bf9\u4e8e\u65e0\u68c0\u6d4b\u4fe1\u53f7\u65f6 NPN \u7684\u63a5\u8fd1\u5f00\u5173\u4e0e\u5149\u7535\u5f00\u5173\u8f93\u51fa\u4e3a\u9ad8\u7535\u5e73\uff08\u5bf9\u5185\u90e8\u6709\u4e0a\u62c9\u7535\u963b<\/u>\u800c\u8a00\uff09\uff0c\u5f53\u6709\u68c0\u6d4b\u4fe1\u53f7\uff0c\u5185\u90e8NPN \u7ba1\u5bfc\u901a\uff0c\u5f00\u5173\u8f93\u51fa\u4e3a\u4f4e\u7535\u5e73\u3002<\/p>\n

\n\t\u5bf9\u4e8e\u65e0\u68c0\u6d4b\u4fe1\u53f7\u65f6 PNP \u7684\u63a5\u8fd1\u5f00\u5173\u4e0e\u5149\u7535\u5f00\u5173\u8f93\u51fa\u4e3a\u4f4e\u7535\u5e73\uff08\u5bf9\u5185\u90e8\u6709\u4e0b\u62c9\u7535\u963b\u800c\u8a00\uff09\uff0c\u5f53\u6709\u68c0\u6d4b\u4fe1\u53f7\uff0c\u5185\u90e8 PNP \u7ba1\u5bfc\u901a\uff0c\u5f00\u5173\u8f93\u51fa\u4e3a\u9ad8\u7535\u5e73\u3002<\/p>\n

\n\t\u4ee5\u4e0a\u7684\u60c5\u51b5\u53ea\u662f\u9488\u5bf9\uff0c\u4f20\u611f\u5668\u662f\u5c5e\u4e8e\u5e38\u5f00\u7684\u72b6\u6001\u4e0b\u3002<\/p>\n

\n\t3\u3001\u6309\u7535\u6e90\u914d\u7f6e\u7c7b\u578b<\/p>\n

\n\t\uff081\uff09 \u76f4\u6d41\u8f93\u5165\u7535\u8def<\/p>\n

\n\t\u76f4\u6d41\u8f93\u5165\u7535\u8def\u8981\u6c42\u5916\u90e8\u8f93\u5165\u4fe1\u53f7\u7684\u5143\u4ef6\u4e3a\u65e0\u6e90\u7684\u5e72\u63a5\u70b9\u6216\u76f4\u6d41\u6709\u6e90\u7684\u65e0\u89e6\u70b9<\/u>\u5f00\u5173\u63a5\u70b9\uff0c\u5f53\u5916\u90e8\u8f93\u5165\u5143\u4ef6\u4e0e\u7535\u6e90\u6b63\u6781\u5bfc\u901a\uff0c\u7535\u6d41\u901a\u8fc7R1\uff0c\u5149\u7535\u8026\u5408\u5668\u5185\u90e8LED\uff0cVD1\uff08\u63a5\u53e3\u6307\u793a\uff09\u5230COM\u7aef\u5f62\u6210\u56de\u8def\uff0c\u5149\u7535\u8026\u5408\u5668\u5185\u90e8\u63a5\u6536\u7ba1\u63a5\u53d7\u5916\u90e8\u5143\u4ef6\u5bfc\u901a\u7684\u4fe1\u53f7\uff0c\u4f20\u8f93\u5230\u5185\u90e8\u5904\u7406;\u8fd9\u79cd\u7531\u76f4\u6d41\u7535\u63d0\u4f9b\u7535\u6e90\u7684\u63a5\u53e3\u65b9\u5f0f\uff0c\u53eb\u76f4\u6d41\u8f93\u5165\u7535\u8def;<\/p>\n

\n\t\u76f4\u6d41\u7535\u53ef\u4ee5\u7531PLC\u5185\u90e8\u63d0\u4f9b\u4e5f\u53ef\u4ee5\u5916\u63a5\u76f4\u6d41\u7535\u6e90\u63d0\u4f9b\u7ed9\u5916\u90e8\u8f93\u5165\u4fe1\u53f7\u7684\u5143\u4ef6\u3002R2\u5728\u7535\u8def\u4e2d\u7684\u4f5c\u7528\u662f\u65c1\u8def\u5149\u7535\u8026\u5408\u5668\u5185\u90e8LED\u7684\u7535\u6d41\uff0c\u4fdd\u8bc1\u5149\u7535\u8026\u5408\u5668LED\u4e0d\u88ab\u4e24\u7ebf\u5236\u63a5\u8fd1\u5f00\u5173\u7684\u9759\u6001\u6cc4\u6f0f\u7535\u6d41\u5bfc\u901a\u3002<\/p>\n

\n\t\uff082\uff09 \u4ea4\u6d41\u8f93\u5165\u7535\u8def<\/p>\n

\n\t\u5982\u56fe2\uff0c\u4ea4\u6d41\u8f93\u5165\u7535\u8def\u8981\u6c42\u5916\u90e8\u8f93\u5165\u4fe1\u53f7\u7684\u5143\u4ef6\u4e3a\u65e0\u6e90\u7684\u5e72\u63a5\u70b9\u6216\u4ea4\u6d41\u6709\u6e90\u7684\u65e0\u89e6\u70b9\u5f00\u5173\u63a5\u70b9\uff0c\u5b83\u4e0e\u76f4\u6d41\u63a5\u53e3\u7684\u533a\u5206\u5728\u5149\u7535\u8026\u5408\u5668\u524d\u52a0\u4e00\u7ea7\u964d\u538b\u7535\u8def\u4e0e\u6865\u6574\u6d41\u7535\u8def\u3002\u5916\u90e8\u5143\u4ef6\u4e0e\u4ea4\u6d41\u7535\u63a5\u901a\u540e\uff0c\u7535\u6d41\u901a\u8fc7R1\uff0cC2\u7ecf\u8fc7\u6865\u6574\u6d41\uff0c\u53d8\u6210\u964d\u538b\u540e\u7684\u76f4\u6d41\u7535\uff0c\u540e\u7eed\u7535\u8def\u7684\u539f\u7406\u4e0e\u76f4\u6d41\u7684\u4e00\u81f4\u3002<\/p>\n

\n\t\u4ea4\u6d41PLC\u4e3b\u8981\u9002\u7528\u76f8\u5bf9\u73af\u5883\u6076\u52a3\uff0c\uff0c\u5e03\u7ebf<\/u>\u6280\u6539\u53d8\u52a8\u4e0d\u5927\u7b49\u573a\u5408;\u5982\u63a5\u8fd1\u5f00\u5173\u5c31\u7528\u4ea4\u6d41\u4e24\u7ebf\u76f4\u63a5\u66ff\u4ee3\u539f\u6765\u884c\u7a0b\u5f00\u5173<\/u>\u3002<\/p>\n

\n\t4\u3001\u6309\u7aef\u53e3\u7c7b\u578b<\/p>\n

\n\t\uff081\uff09\u5355\u7aef\u5171\u70b9\uff08Comcon\uff09\u6570\u5b57\u91cf\u8f93\u5165\u65b9\u5f0f<\/p>\n

\n\t\u4e3a\u4e86\u8282\u7701\u8f93\u5165\u7aef\u5b50\uff0c\u5355\u7aef\u5171\u70b9\u8f93\u5165\u7684\u7ed3\u6784\u662f\u5728 PLC \u5185\u90e8\u5c06\u6240\u6709\u8f93\u5165\u7535\u8def\uff08\u5149\u7535\u8026\u5408\u5668\uff09\u7684\u4e00\u7aef\u8fde\u63a5\u5728\u4e00\u8d77\u63a5\u5230\u6807\u793a\u4e3a COM \u7684\u5185\u90e8\u516c\u5171\u7aef\u5b50\uff0c\u5404\u8f93\u5165\u7535\u8def\u7684\u53e6\u4e00\u7aef\u624d\u63a5\u5230\u5176\u5bf9\u5e94\u7684\u8f93\u5165\u7aef\u5b50 X0\u3001X1\u3001X2\u3001\u3002..\u3002<\/p>\n

\n\tcom \u5171\u70b9\u4e0e N \u4e2a\u5355\u7aef\u8f93\u5165\u5c31\u53ef\u4ee5\u505a N \u4e2a\u6570\u5b57\u91cf\u7684\u8f93\u5165\uff08N+1 \u4e2a\u7aef\u5b50\uff09\uff0c\u56e0\u6b64\u6211\u4eec\u79f0\u6b64\u7ed3\u6784\u4e3a“\u5355\u7aef\u5171\u70b9”\u8f93\u5165\u3002\u7528\u6237\u5728\u505a\u5916\u90e8\u6570\u5b57\u91cf\u8f93\u5165\u7ec4\u4ef6\u7684\u63a5\u7ebf\u65f6\u4e5f\u9700\u8981\u540c\u6837\u7684\u4f5c\u6cd5\uff0c\u9700\u8981\u5c06\u6240\u6709\u8f93\u5165\u7ec4\u4ef6\u7684\u4e00\u7aef\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u53eb\u8f93\u5165\u7ec4\u4ef6\u7684\u7684\u5916\u90e8\u5171\u7ebf;\u8f93\u5165\u7ec4\u4ef6\u7684\u53e6\u4e00\u7aef\u624d\u63a5\u5230 PLC \u7684\u8f93\u5165\u7aef\u5b50 X0\u3001X1\u3001X2\u3001\u3002..\u3002<\/p>\n

\n\tSINK\u8f93\u5165\u65b9\u5f0f\uff0c\u53ef\u63a5 NPN \u578b\u4f20\u611f\u5668\uff0c\u5373 X \u7aef\u53e3\u4e0e\u8d1f\u6781\u76f8\u8fde\u3002<\/p>\n

\n\tSRCE\u8f93\u5165\u65b9\u5f0f\uff0c\u53ef\u63a5 PNP \u578b\u4f20\u611f\u5668\u3002\u5373 X \u7aef\u53e3\u4e0e\u6574\u673a\u6781\u76f8\u8fde\u3002<\/p>\n

\n\t\uff08\u5916\u90e8\u8f93\u5165\u7ec4\u4ef6\u53ef\u4ee5\u4e3a\u6309\u94ae\u5f00\u5173<\/u>\u3001\u884c\u7a0b\u5f00\u5173\u3001\u820c\u7c27\u5f00\u5173\u3001\u970d\u5c14\u5f00\u5173<\/u>\u3001\u63a5\u8fd1\u5f00\u5173\u3001\u5149\u7535\u5f00\u5173\u3001\u5149\u5e55\u4f20\u611f\u5668\u3001\u7ee7\u7535\u5668<\/u>\u89e6\u70b9\u3001\u63a5\u89e6\u5668<\/u>\u89e6\u7535\u7b49\u5f00\u5173\u91cf\u7684\u5143\u4ef6\u3002\uff09<\/p>\n

\n\t\uff082\uff09 SINK\uff08sink Current \u62c9\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f\u25cf\u5355\u7aef\u5171\u70b9SINK\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V+\uff0c\u5916\u90e8\u5171\u7ebf→24V-\uff09\u3002<\/p>\n

\n\t\uff083\uff09 SRCE\uff08source Current \u704c\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f<\/p>\n

\n\t\u25cf \u5355\u7aef\u5171\u70b9SRCE\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V-\uff0c\u5916\u90e8\u5171\u7ebf→24V+\uff09\u3002<\/p>\n

\n\t\uff084\uff09SINK\/SRCE\u53ef\u5207\u6362\u8f93\u5165\u65b9\u5f0f<\/p>\n

\n\tS\/S\u7aef\u5b50\u4e0eCOM\u7aef\u4e0d\u540c\u7684\u662f\uff0cCOM\u662f\u4e0e\u5185\u90e8\u7535\u6e90\u6b63\u6781\u6216\u8d1f\u6781\u56fa\u5b9a\u76f8\u8fde\uff0cS\/S\u7aef\u5b50\u662f\u975e\u56fa\u5b9a\u76f8\u8fde\u7684\uff0c\u6839\u636e\u9700\u8981\u624d\u4e0e\u5185\u90e8\u7535\u6e90\u6216\u5916\u90e8\u7535\u6e90\u7684\u6b63\u6781\u6216\u8005\u8d1f\u6781\u76f8\u8fde\u3002<\/p>\n

\n\t\u25cf \u5355\u7aef\u5171\u70b9SINK\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50S\/S→24V+\uff0c\u5916\u90e8\u5171\u7ebf→24V-\uff09\u3002<\/p>\n

\n\t\u25cf \u5355\u7aef\u5171\u70b9SRCE\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50S\/S→24V-\uff0c\u5916\u90e8\u5171\u7ebf→24V+\uff09\u3002<\/p>\n

\n\t\uff085\uff09 \u5f53\u6709\u6e90\u8f93\u5165\u5143\u4ef6\uff08\u970d\u5c14\u5f00\u5173\u3001\u63a5\u8fd1\u5f00\u5173\u3001\u5149\u7535\u5f00\u5173\u3001\u5149\u5e55\u4f20\u611f\u5668\u7b49\uff09\u6570\u91cf\u6bd4\u8f83\u591a\uff0c\u6d88\u8017\u529f\u7387\u6bd4\u8f83\u5927\uff0cPLC\u5185\u7f6e\u7535\u6e90\u4e0d\u80fd\u6ee1\u8db3\u65f6\uff0c\u9700\u8981\u914d\u7f6e\u5916\u7f6e\u7535\u6e90\u3002\u6839\u636e\u9700\u6c42\u53ef\u4ee5\u914d24VDC\uff0c\u4e00\u5b9a\u529f\u7387\u7684\u5f00\u5173\u7535\u6e90<\/u>\u3002\u5916\u7f6e\u7535\u6e90\u539f\u5219\u4e0a\u4e0d\u80fd\u4e0e\u5185\u7f6e\u7535\u6e90\u5e76\u8054\uff0c\u6839\u636eCOM\u4e0e\u5916\u90e8\u5171\u7ebf\u7684\u7279\u70b9\uff0c SINK\uff08sink Current \u62c9\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f\u65f6\uff0c\u5916\u7f6e\u7535\u6e90\u4e0e\u5185\u7f6e\u7535\u6e90\u6b63\u6781\u76f8\u8fde\u63a5;SRCE\uff08source Current \u704c\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f\u65f6\uff0c\u5916\u7f6e\u7535\u6e90\u4e0e\u5185\u7f6e\u7535\u6e90\u8d1f\u6781\u76f8\u8fde\u63a5\u3002<\/p>\n

\n\t\uff086\uff09 \u7b80\u5355\u5224\u65adSINK\uff08sink Current \u62c9\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f\uff0c\u53ea\u9700\u8981Xn\u7aef\u4e0e\u8d1f\u6781\u77ed\u8def<\/u>\uff0c\u5982\u679c\u63a5\u53e3\u6307\u793a\u706f<\/u>\u4eae\u5c31\u8bf4\u660e\u662fSINK\u8f93\u5165\u65b9\u5f0f\u3002\u5171\u6b63\u6781\u7684\u5149\u85d5\u5408\u5668\uff0c\u53ef\u63a5NPN\u578b\u7684\u4f20\u611f\u5668\u3002SRCE\uff08source Current \u704c\u7535\u6d41\uff09\u8f93\u5165\u65b9\u5f0f\uff0c\u5c06Xn\u7aef\u4e0e\u6b63\u6781\u77ed\u8def\uff0c\u5982\u679c\u63a5\u53e3\u6307\u793a\u706f\u4eae\u5c31\u8bf4\u660e\u662fSRCE\u8f93\u5165\u65b9\u5f0f\u3002\u5171\u8d1f\u6781\u7684\u5149\u85d5\u5408\u5668\uff0c\u53ef\u63a5PNP\u578b\u7684\u4f20\u611f\u5668\u3002<\/p>\n

\n\t\uff087\uff09 \u5bf9\u4e8e2\u7ebf\u5f0f\u7684\u5f00\u5173\u91cf\u8f93\u5165\uff0c\u5982\u679c\u662f\u65e0\u6e90\u89e6\u70b9\uff0cSINK\u4e0eSRCE\u6309\u4e0a\u56fe\u7684\u8f93\u5165\u5143\u4ef6\u63a5\u6cd5\uff0c\u5bf9\u4e8e2\u7ebf\u5f0f\u7684\u63a5\u8fd1\u5f00\u5173\uff0c\u9700\u8981\u5224\u65ad\u63a5\u8fd1\u5f00\u5173\u7684\u6781\u6027\uff0c\u6b63\u786e\u63a5\u5165\u3002\u6211\u516c\u53f8\u90e8\u52062\u7ebf\u5f0f\u7684LJK\u7cfb\u5217\u63a5\u8fd1\u5f00\u5173\u4e5f\u6709\u4e0d\u5206\u6781\u6027\u5373\u53ef\u63a5\u5165\u63a5\u53e3\u7684\uff0c\u5177\u4f53\u53c2\u8003\u9644\u5e26\u4ea7\u54c1\u8bf4\u660e\u4e66\u3002<\/p>\n

\n\t\uff088\uff09\u8d85\u9ad8\u901f\u53cc\u7aef\u8f93\u5165\u7535\u8def<\/p>\n

\n\t\u4e3b\u8981\u7528\u4e8e\u786c\u4ef6\u9ad8\u901f\u8ba1\u6570\u5668\uff08HHSC\uff09\u7684\u8f93\u5165\u4f7f\u7528\uff0c\u63a5\u53e3\u7535\u538b\u4e3a5VDC\uff0c\u5728\u5e94\u7528\u4e0a\u4e3a\u786e\u4fdd\u9ad8\u901f\u53ca\u9ad8\u566a\u97f3\u6297\u6027\u901a\u5e38\u91c7\u7528\u53cc\u7ebf\u9a71\u52a8\u65b9\u5f0f\uff08Line-Drive\uff09\u3002\u5982\u679c\u5de5\u4f5c\u9891\u7387\u4e0d\u9ad8\u4e0e\u566a\u97f3\u4f4e\u4e5f\u53ef\u4ee5\u91c7\u75285VDC\u7684\u5355\u7aefSINK\u6216\u8005SRCE\u63a5\u6cd5\uff0c\u4e32\u8054\u4e00\u4e2a\u9650\u6d41\u7535\u963b\u8f6c\u6362\u621024VDC\u7684\u5355\u7aefSINK\u6216\u8005SRCE\u63a5\u6cd5\u3002<\/p>\n

\n\t\uff089\uff09\u3001\u53cc\u8f93\u5165\u7aef\u53cc\u7ebf\u9a71\u52a8\u65b9\u5f0f\uff08Line-Drive\uff09\u3002<\/p>\n

\n\t\uff0810\uff09\u30015VDC\u7684\u5355\u7aefSINK\u6216\u8005SRCE\u63a5\u6cd5\u3002<\/p>\n

\n\t\uff0811\uff09\u300124VDC\u7684\u5355\u7aefSINK\u6216\u8005SRCE\u63a5\u6cd5\u3002<\/p>\n

\n\t24VDC\u4f9b\u7535\u7684\u4f20\u611f\u5668\uff0c\u5728\u8f93\u5165\u56de\u8def\u4e0a\u9700\u8981\u4e32\u8054\u9650\u6d41\u7535\u963b\uff0cR1\u4e3a10Ω\uff0cR2\u4e3a2KΩ\uff0c\u4e0d\u4e32\u8054\u9650\u6d41\u7535\u963b\uff0c\u5c06\u70e7\u6bc1\u63a5\u53e3\u56de\u8def\uff0c\u9650\u6d41\u7535\u963b\u53d6\u503c2.7KΩ\u3002<\/p>\n

\n\t\u5916\u90e8\u8f93\u5165\u5143\u4ef6<\/h2>\n

\n\t1\u3001\u65e0\u6e90\u5e72\u63a5\u70b9\uff08\u6309\u94ae\u5f00\u5173\u3001\u884c\u7a0b\u5f00\u5173\u3001\u820c\u7c27\u78c1\u6027\u5f00\u5173\u3001\u7ee7\u7535\u5668\u89e6\u70b9\u7b49\uff09<\/p>\n

\n\t\u65e0\u6e90\u5e72\u63a5\u70b9\u6bd4\u8f83\u7b80\u5355\uff0c\u63a5\u7ebf\u5bb9\u6613\u3002\u4e0d\u5b58\u5728\u7535\u6e90\u7684\u6781\u6027\uff0c\u538b\u964d\u7b49\u56e0\u7d20\uff0c\u4e0a\u56fe3-6\u4e2d\u7684\u8f93\u5165\u5143\u4ef6\u8fd9\u662f\u6b64\u7c7b\u578b\u3002\u8fd9\u91cc\u4e0d\u91cd\u590d\u4ecb\u7ecd\u3002<\/p>\n

\n\t2\u3001\u6709\u6e90\u4e24\u7ebf\u5236\u4f20\u611f\u5668\uff08\u63a5\u8fd1\u5f00\u5173\u3001\u6709\u6e90\u820c\u7c27\u78c1\u6027\u5f00\u5173\uff09<\/p>\n

\n\t\u6709\u6e90\u4e24\u7ebf\u63a5\u8fd1\u5f00\u5173\u5206\u76f4\u6d41\u4e0e\u4ea4\u6d41\uff0c\u6b64\u4f20\u611f\u5668\u7684\u7279\u70b9\u5c31\u662f\u4e24\u6839\u7ebf\uff0c\u4f20\u5668\u8f93\u51fa\u7aef\u5bfc\u901a\u540e\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u7535\u8def\u6b63\u5e38\u5de5\u4f5c\u9700\u8981\u4e00\u4e2a\u4fdd\u6301\u7535\u538b\u6765\u7ef4\u6301\u7535\u8def\u5de5\u4f5c\uff0c\u901a\u5e38\u57283.5-5V\u7684\u538b\u964d\uff0c\u9759\u6001\u6cc4\u9732\u7535\u6d41\u8981\u5c0f\u4e8e1mA\uff0c\u8fd9\u4e2a\u6307\u6807\u5f88\u91cd\u8981;\u5982\u679c\u8fc7\u5927\uff0c\u5728\u63a5\u8fd1\u5f00\u5173\u6ca1\u68c0\u6d4b\u4fe1\u53f7\u65f6\uff0c\u5c31\u4f7fPLC\u7684\u8f93\u5165\u7aef\u7684\u5149\u7535\u8026\u5408\u5668\u5bfc\u901a\u3002\u6211\u516c\u53f8\u7684LJK\u7cfb\u5217\u4e24\u7ebf\u5236\u63a5\u8fd1\u5f00\u5173\u9759\u6001\u6cc4\u9732\u7535\u6d41\u63a7\u5236\u57280.35-0.5mA\u4e4b\u95f4\u9002\u5e94\u5404\u7c7b\u578bPLC\u3002<\/p>\n

\n\t\u76f4\u6d41\u4e24\u7ebf\u5236\u63a5\u8fd1\u5f00\u5173\u5206\u4e8c\u6781\u7ba1<\/u>\u6781\u6027\u4fdd\u62a4\u4e0e\u6865\u6574\u6d41\u6781\u6027\u4fdd\u62a4\uff0c\u524d\u8005\u5728\u63a5PLC\u65f6\u9700\u8981\u6ce8\u610f\u6781\u6027\uff0c\u540e\u8005\u5c31\u4e0d\u9700\u8981\u6ce8\u610f\u6781\u6027\u3002\u6709\u6e90\u820c\u7c27\u78c1\u6027\u5f00\u5173\u4e3b\u8981\u7528\u5728\u6c7d\u7f38\u4e0a\u505a\u4f4d\u7f6e\u68c0\u6d4b\uff0c\u7531\u4e8e\u9700\u8981\u4fe1\u53f7\u6307\u793a\uff0c\u5185\u90e8\u6709\u53cc\u5411\u4e8c\u6781\u7ba1\u56de\u8def\uff0c\u56e0\u6b64\u4e5f\u4e0d\u9700\u8981\u6ce8\u610f\u6781\u6027;\u4ea4\u6d41\u4e24\u7ebf\u5236\u63a5\u8fd1\u5f00\u5173\u5c31\u4e0d\u9700\u8981\u6ce8\u610f\u6781\u6027\u3002\u5982\u56fe10\uff1a<\/p>\n

\n\t\uff081\uff09 \u5355\u7aef\u5171\u70b9SINK\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V+\uff0c\u5916\u90e8\u5171\u7ebf→24V-\uff09\u3002<\/p>\n

\n\t\uff082\uff09 \u5355\u7aef\u5171\u70b9SRCE\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V-\uff0c\u5916\u90e8\u5171\u7ebf→24V+\uff09\u3002<\/p>\n

\n\t3\u3001\u6709\u6e90\u4e09\u7ebf\u4f20\u611f\u5668\uff08\u7535\u611f<\/u>\u63a5\u8fd1\u5f00\u5173\u3001\u7535\u5bb9<\/u>\u63a5\u8fd1\u5f00\u5173\u3001\u970d\u5c14\u63a5\u8fd1\u5f00\u5173\u3001\u5149\u7535\u5f00\u5173\u7b49\uff09\u76f4\u6d41\u6709\u6e90\u4e09\u5236\u7ebf\u63a5\u8fd1\u5f00\u5173\u4e0e\u5149\u7535\u5f00\u5173\u8f93\u51fa\u7ba1\u4f7f\u7528\u4e09\u6781\u7ba1<\/u>\u8f93\u51fa\uff0c\u56e0\u6b64\u4f20\u611f\u5668\u5206NPN\u548cPNP\u8f93\u51fa\uff0c\u6709\u7684\u4ea7\u54c1\u662f\u56db\u7ebf\u5236\uff0c\u6709\u53ccNPN\u6216\u53ccPNP\uff0c\u53ea\u662f\u72b6\u6001\u521a\u597d\u76f8\u53cd\uff0c\u4e5f\u6709NPN\u548cPNP\u7ed3\u5408\u7684\u56db\u7ebf\u8f93\u51fa\u3002<\/p>\n

\n\tNPN\u578b\u5f53\u4f20\u611f\u5668\u6709\u68c0\u6d4b\u4fe1\u53f7VT\u5bfc\u901a\uff0c\u8f93\u51fa\u7aefOUT\u7684\u7535\u6d41\u6d41\u5411\u8d1f\u6781\uff0c\u8f93\u51fa\u7aefOUT\u7535\u4f4d\u63a5\u8fd1\u8d1f\u6781\uff0c\u901a\u5e38\u8bf4\u7684\u9ad8\u7535\u5e73\u7ffb\u8f6c\u6210\u4f4e\u7535\u5e73\u3002<\/p>\n

\n\tPNP\u578b\u5f53\u4f20\u611f\u5668\u6709\u68c0\u6d4b\u4fe1\u53f7VT\u5bfc\u901a\uff0c\u6b63\u6781\u7684\u7535\u6d41\u6d41\u5411\u8f93\u51fa\u7aefOUT\uff0c\u8f93\u51fa\u7aefOUT\u7535\u4f4d\u63a5\u8fd1\u6b63\u6781\uff0c\u901a\u5e38\u8bf4\u7684\u4f4e\u7535\u5e73\u7ffb\u8f6c\u6210\u9ad8\u7535\u5e73\u3002<\/p>\n

\n\t\u7535\u8def\u4e2d\u4e09\u6781\u7ba1\u7684\u53d1\u5c04\u6781\u4e0a\u7684\u7535\u963b\u4e3a\u77ed\u8def\u4fdd\u62a4\u91c7\u6837\u7535\u963b2-3Ω\u4e0d\u5f71\u54cd\u8f93\u51fa\u7535\u6d41\u3002\u4e09\u6781\u7ba1\u7684\u96c6\u7535\u6781\u7684\u7535\u963b\u4e3a\u4e0a\u62c9\u4e0e\u4e0b\u62c9\u7535\u963b\uff0c\u63d0\u4f9b\u8f93\u51fa\u7535\u4f4d\uff0c\u65b9\u4fbf\u7535\u5e73\u63a5\u53e3\u7684\u7535\u8def\uff0c\u53e6\u4e00\u79cd\u8f93\u51fa\u7684\u4e09\u6781\u7ba1\u96c6\u7535\u6781\u5f00\u8def\u8f93\u51fa\u4e0d\u63a5\u4e0a\u62c9\u4e0e\u4e0b\u62c9\u7535\u963b\u3002<\/p>\n

\n\t\u7b80\u5355\u8bf4\u5f53\u4e09\u6781\u7ba1VT\u5bfc\u901a\uff0c\u76f8\u5f53\u4e0e\u4e00\u4e2a\u63a5\u70b9\u5bfc\u901a<\/p>\n

\n\t\uff081\uff09 \u5355\u7aef\u5171\u70b9SINK\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V+\uff0c\u5916\u90e8\u5171\u7ebf→24V-\uff09\u3002<\/p>\n

\n\t\uff082\uff09 \u5355\u7aef\u5171\u70b9SRCE\u8f93\u5165\u63a5\u7ebf\uff08\u5185\u90e8\u5171\u70b9\u7aef\u5b50COM→24V-\uff0c\u5916\u90e8\u5171\u7ebf→24V+\uff09\u3002<\/p>\n

\n\tPLC\u8f93\u5165\u63a5\u53e3\u7535\u8def\u5f62\u5f0f\u548c\u5916\u63a5\u5143\u4ef6\uff08\u4f20\u611f\u5668\uff09\u8f93\u51fa\u4fe1\u53f7\u5f62\u5f0f\u7684\u591a\u6837\u6027\uff0c\u56e0\u6b64\u5728PLC\u8f93\u5165\u6a21\u5757\u63a5\u7ebf\u524d\u5fc5\u8981\u4e86\u89e3PLC\u8f93\u5165\u7535\u8def\u5f62\u5f0f\u548c\u4f20\u611f\u5668\u8f93\u51fa\u4fe1\u53f7\u7684\u5f62\u5f0f\uff0c\u624d\u80fd\u786e\u4fddPLC\u8f93\u5165\u6a21\u5757\u63a5\u7ebf\u6b63\u786e\u65e0\u8bef\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u624d\u80fd\u6e38\u5203\u6709\u4f59\uff0c\u540e\u671f\u7684\u7f16\u7a0b\u5de5\u4f5c\u548c\u7cfb\u7edf\u7a33\u5b9a\u5960\u5b9a\u57fa\u7840\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

PLC \u7684\u6570\u5b57\u91cf\u8f93\u5165 \u63a5\u53e3 \u5e76\u4e0d\u590d\u6742\uff0cPLC \u4e3a\u4e86\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\uff0c\u8f93\u5165\u63a5\u53e3\u90fd\u91c7\u7528 \u5149\u7535\u8026\u5408\u5668 \u6765\u9694\u79bb\u8f93\u5165\u4fe1\u53f7\u4e0e\u5185\u90e8\u5904\u7406 \u7535\u8def \u7684\u4f20\u8f93\u3002\u56e0\u6b64\uff0c\u8f93\u5165\u7aef\u7684\u4fe1\u53f7\u53ea\u662f\u9a71\u52a8\u5149\u7535 \u8026\u5408 \u5668\u7684\u5185\u90e8 L<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2747"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2747"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2747\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2747"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}