{"id":24320,"date":"2023-08-14T21:25:11","date_gmt":"2023-08-14T13:25:11","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=24320"},"modified":"2026-06-30T23:59:31","modified_gmt":"2026-06-30T15:59:31","slug":"xi-men-zi-1200plc-de-modbusrtu-xiang-xi-shuo-ming-quan-ji","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/24320.html","title":{"rendered":"\u897f\u95e8\u5b501200PLC\u7684Modbus\uff08RTU\uff09\u8be6\u7ec6\u8bf4\u660e\u5168\u96c6"},"content":{"rendered":"
\n
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Modbus\u5177\u6709\u4e24\u79cd\u4e32\u884c\u4f20\u8f93\u6a21\u5f0f\uff1a\u5206\u522b\u4e3aASCII\u548cRTU\u3002
\n<\/span>
\n<\/span>Modbus\u662f\u4e00\u79cd\u5355\u4e3b\u7ad9\u7684\u4e3b\u4ece\u901a\u4fe1\u6a21\u5f0f\uff0cModbus\u7f51\u7edc\u4e0a\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u7ad9\u5b58\u5728\uff0c\u4e3b\u7ad9\u5728Modbus\u7f51\u7edc\u4e0a\u6ca1\u6709\u5730\u5740\uff0c\u6bcf\u4e2a\u4ece\u7ad9\u5fc5\u987b\u6709\u552f\u4e00\u7684\u5730\u5740\uff0c\u4ece\u7ad9\u7684\u5730\u5740\u8303\u56f4\u4e3a0 – 247\uff0c\u5176\u4e2d0\u4e3a\u5e7f\u64ad\u5730\u5740\uff0c\u4ece\u7ad9\u7684\u5b9e\u9645\u5730\u5740\u8303\u56f4\u4e3a1 – 247\u3002Modbus RTU\u901a\u4fe1\u4ee5\u4e3b\u4ece\u7684\u65b9\u5f0f\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2dModbus RTU\u4e3b\u7ad9\u662f\u4e3b\u52a8\u65b9\uff0c\u5373\u4e3b\u7ad9\u53d1\u9001\u6570\u636e\u8bf7\u6c42\u62a5\u6587\u5230\u4ece\u7ad9\uff0cModbus RTU\u4ece\u7ad9\u8fd4\u56de\u54cd\u5e94\u62a5\u6587\u3002
\n<\/span>
\n<\/span>S7-1200\u4ee5\u4e0b\u6a21\u5757\u652f\u6301 Modbus RTU\u901a\u4fe1\uff1a
\n<\/span><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
\n
\u901a\u4fe1\u6a21\u5757\/\u901a\u4fe1\u677f
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u8ba2\u8d27\u53f7
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
CM1241 RS232
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
6ES7 241-1AH32-0XB0
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
CM1241 RS485
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
6ES7 241-1CH30-0XB0
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
CM1241 RS422\/485
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
6ES7 241-1CH32-0XB0
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
CB 1241 RS485
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
6ES7 241-1CH30-1XB0
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6ce8\u610f
\n<\/span>1. \u4f7f\u7528\u901a\u4fe1\u6a21\u5757CM 1241 RS232\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\u65f6\uff0c\u53ea\u80fd\u4e0e\u4e00\u4e2a\u4ece\u7ad9\u901a\u8baf\u3002
\n<\/span>2. \u4f7f\u7528\u901a\u4fe1\u6a21\u5757CM 1241 RS485\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\u65f6\uff0c\u5219\u5141\u8bb8\u5efa\u7acb\u6700\u591a\u4e0e 32 \u4e2a\u4ece\u7ad9\u7684\u901a\u8baf\u3002
\n<\/span>
\n<\/span>3. \u4f7f\u7528\u901a\u4fe1\u677fCB 1241 RS485\u65f6\uff0cCPU \u56fa\u4ef6\u5fc5\u987b\u4e3a V2.0 \u6216\u66f4\u9ad8\u7248\u672c\uff0c\u4e14\u4f7f\u7528\u8f6f\u4ef6\u5fc5\u987b\u4e3aSTEP 7 Basic V11 \u6216STEP 7 Professional V11 \u4ee5\u4e0a\u66f4\u9ad8\u7248\u672c\u3002
\n<\/span> \u968f\u7740 TIA PORATL \u8f6f\u4ef6\u548c S7-1200 CPU \u56fa\u4ef6\u7684\u4e0d\u65ad\u66f4\u65b0\uff0cS7-1200 Modbus RTU \u6307\u4ee4\u4e5f\u51fa\u73b0\u4e86\u4e0d\u540c\u7684\u7248\u672c\u3002\u7528\u6237\u9700\u8981\u6839\u636e\u4f7f\u7528\u7684\u8f6f\u4ef6\u548c\u786c\u4ef6\uff0c\u6b63\u786e\u9009\u62e9\u4f7f\u7528\u7b26\u5408\u8981\u6c42\u7684 S7-1200 Modbus RTU \u6307\u4ee4\u6765\u5b9e\u73b0 Modbus RTU \u901a\u4fe1\u3002
\n<\/span>\u8f6f\u4ef6\uff0c\u786c\u4ef6\u8981\u6c42\u548c\u6307\u4ee4\u7248\u672c\u8bf4\u660e\u5982\u4e0b\u3002
\n<\/span>
\n<\/span>\u8f6f\u4ef6STEP 7 V11 \u4e2d\u7684S7-1200 Modbus RTU \u6307\u4ee4
\n<\/span>\u8f6f\u4ef6STEP 7 V11\u7248\u672c\u5f00\u59cb\uff0c\u53ef\u4ee5\u4ece\u201c\u6307\u4ee4\u201d\u2192\u201c\u901a\u4fe1\u5904\u7406\u5668\u201d\u2192\u201cMODBUS\u201d\u4e0b\u76f4\u63a5\u8c03\u7528 \u201cMB_COMM_LOAD\u201d\u548c\u201cMB_MASTER\u201d\u6216\u201cMB_SLAVE\u201d\u6307\u4ee4\uff0c\u5982\u4e0b\u56fe1\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe1 Modbus RTU\u6307\u4ee4
\n<\/span>
\n<\/span>Modbus RTU\u6307\u4ee4\u6709\u4e24\u4e2a\u7248\u672c\uff1a\u5206\u522b\u4e3aV1 \u548cV2\u3002\u7248\u672cV1\u6700\u521d\u5728 STEP 7 Basic V10.5 \u4e2d\u63d0\u4f9b\uff1b\u7248\u672cV2 \u5728 STEP 7 Basic\/Professional V11 \u4e2d\u63d0\u4f9b\u3002
\n<\/span>\u8f6f\u4ef6STEP 7 V13 SP1 \u4e2d\u7684S7-1200 Modbus RTU \u6307\u4ee4
\n<\/span>TIA V13 SP1\u7248\u672c\u8f6f\u4ef6\u4e2d\u63d0\u4f9b\u4e862\u4e2a\u7248\u672c\u7684 Modbus RTU\u6307\u4ee4\u3002\u5982\u4e0b\u56fe 2 \u6240\u793a\uff1a\u65e9\u671f\u7248\u672c\u7684 Modbus RTU \u6307\u4ee4\uff08\u56fe2. \u4e2d MODBUS (V2.2)\uff09\u4ec5\u53ef\u901a\u8fc7 CM1241 \u901a\u4fe1\u6a21\u5757\u6216 CB1241 \u901a\u4fe1\u677f\u8fdb\u884c Modbus RTU \u901a\u4fe1\u3002\u65b0\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\uff08\u56fe2. \u4e2d MODBUS(RTU) V3.0\uff09\u6269\u5c55\u4e86Modbus RTU\u7684\u529f\u80fd\uff0c\u8be5\u6307\u4ee4\u9664\u4e86\u652f\u6301 CM1241 \u901a\u4fe1\u6a21\u5757\u3001CB1241 \u901a\u4fe1\u677f\uff0c\u8fd8\u652f\u6301PROFINET\u6216PROFIBUS\u5206\u5e03\u5f0f I\/O \u673a\u67b6\u4e0a\u7684PTP\u901a\u4fe1\u6a21\u5757\u5b9e\u73b0 Modbus RTU \u901a\u4fe1\u3002
\n<\/span>
\n<\/span>\u6ce8\u610f\uff1a\u65b0\u7248\u672c Modbus RTU \u6307\u4ee4\u7684\u4f7f\u7528\u9650\u5236\u6761\u4ef6 \u65b0\u7248\u672c Modbus RTU \u6307\u4ee4\u901a\u8fc7CM1241\u901a\u4fe1\u6a21\u5757\u6216CB1241\u901a\u4fe1\u677f\u8fdb\u884cModbus RTU\u901a\u4fe1\u65f6\uff0c\u9700\u8981\u6ee1\u8db3\u5982\u4e0b\u6761\u4ef6\uff1aa. S7-1200 CPU \u7684\u56fa\u4ef6\u7248\u672c\u4e0d\u80fd\u4f4e\u4e8eV4.1\uff1bb. CM1241\u901a\u4fe1\u6a21\u5757 V2.1 \u4ee5\u4e0a\u6216 CB1241\u3002
\n<\/span><\/p>\n

\n
\n
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\n<\/span>\u56fe2. \u4e24\u4e2a\u7248\u672c Modbus RTU \u6307\u4ee4
\n<\/span>\u5e38\u89c1\u95ee\u9898
\n<\/span><\/p>\n

\n
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\u00a0<\/span><\/p>\n

\n
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1\u3001\u897f\u95e8\u5b50\u4e0d\u63d0\u4f9b\u652f\u6301MODBUS-ASCII\u901a\u4fe1\u6a21\u5f0f\u7684\u7684\u73b0\u6210\u6307\u4ee4\uff0c\u9700\u8981\u7528\u6237\u81ea\u5df1\u7528\u81ea\u7531\u53e3\u6a21\u5f0f\u7f16\u7a0b\u3002
\n<\/span><\/p>\n

\n
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\n
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\u00a0<\/span><\/p>\n

\n
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2\u3001Modbus RTU\u6307\u4ee4\u7248\u672c V2 \u5c06\u53c2\u6570\u201cREQ\u201d\u548c\u201cDONE\u201d\u6dfb\u52a0\u5230\u201cMB_COMM_LOAD\u201d\u6307\u4ee4\u3002\u800c\u4e14\uff0c\u201cMB_MASTER\u201d\u548c\u201cMB_SLAVE \u201d\u6307\u4ee4\u7684\u201cMB_ADDR \u201d\u53c2\u6570\u73b0\u5728\u5141\u8bb8\u4e00\u4e2aUInt\u503c\u4ee5\u8fdb\u884c\u6269\u5c55\u5bfb\u5740\u3002
\n<\/span><\/p>\n

\n
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\n
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\u00a0<\/span><\/p>\n

\n
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3\u3001\u4e0d\u80fd\u5728\u540c\u4e00CPU \u7a0b\u5e8f\u4e2d\u540c\u65f6\u4f7f\u7528V1\uff08V1.x\uff09\u548cV2\uff08V2.y\uff09\u6307\u4ee4\u7248\u672c\u3002\u7528\u6237\u7a0b\u5e8f\u7684 Modbus \u6307\u4ee4\u5fc5\u987b\u5177\u6709\u76f8\u540c\u7684\u4e3b\u7248\u672c\u53f7\uff1b\u4e3b\u7248\u672c\u7ec4\u5185\u7684\u5404\u4e2a\u6307\u4ee4\u53ef\u5177\u6709\u4e0d\u540c\u7684\u6b21\u7248\u672c\u53f7\u3002
\n<\/span><\/p>\n

\n
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\n
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\u00a0<\/span><\/p>\n

\n
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4\u3001\u5bf9S7-1200 \u901a\u4fe1\u6a21\u5757CM1241\u7ec4\u6001\u5e76\u7f16\u7a0b\u8c03\u7528\u201cMB_COMM_LOAD\u201d\u6307\u4ee4\uff0c\u53ef\u5c06\u5176\u8bbe\u7f6e\u4e3aModbus RTU\u901a\u4fe1\u6a21\u5f0f\u3002\u901a\u8fc7\u7f16\u7a0b\u8c03\u7528\u201cMB_MASTER\u201d\u6307\u4ee4\uff0cS7-1200 \u901a\u4fe1\u6a21\u5757CM1241\u53ef\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\uff0c\u6216\u8c03\u7528\u201cMB_SLAVE\u201d\u6307\u4ee4\uff0cS7-1200 \u901a\u4fe1\u6a21\u5757CM1241\u53ef\u4f5c\u4e3aModbus RTU\u4ece\u7ad9\u3002
\n<\/span><\/p>\n

\n
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\u00a0<\/span><\/p>\n

\n
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5\u3001\u65e0\u8bbaS7-1200 \u901a\u4fe1\u6a21\u5757CM1241\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\u8fd8\u662f\u4ece\u7ad9\uff0c\u90fd\u9700\u8981\u8c03\u7528\u201cMB_COMM_LOAD\u201d\u6307\u4ee4\u8fdb\u884c\u7f16\u7a0b\u3002
\n<\/span><\/p>\n

\n
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\n
\n
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\u00a0<\/span><\/p>\n

\n
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6\u3001S7-1200 CM1241\/CB1241 Modbus RTU \u901a\u4fe1\u652f\u6301\u4e24\u4f4d\u505c\u6b62\u4f4d\u3002S7-1200 CM1241\/CB1241\u5c5e\u6027\u91cc\u53ef\u4ee5\u8bbe\u7f6e\u505c\u6b62\u4f4d\uff0c\u4f46\u662f\u8be5\u6a21\u5757\u7528\u4e8e Modbus \u901a\u4fe1\u65f6\uff0c\u6b64\u8bbe\u7f6e\u7684\u505c\u6b62\u4f4d\u65e0\u6548\uff0c\u9700\u8981\u5728 Modbus_Commload \u6307\u4ee4\u7684\u80cc\u666fDB\u91ccStatic\u4fee\u6539STOP_BITS\u505c\u6b62\u4f4d\u6570\u503c\u4e3a2\u3002
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

\u5982\u4e0b\u56fe3\u30014\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe3. CM1241 \u914d\u7f6e\u505c\u6b62\u4f4d\u53c2\u6570
\n<\/span>
\n<\/span>Modbus_Commload \u6307\u4ee4\u7684\u80cc\u666fDB\u91ccStatic\u4fee\u6539STOP_BITS\u505c\u6b62\u4f4d\u6570\u503c\u4e3a2\uff08\u9ed8\u8ba4\u503c=1\uff09
\n<\/span><\/p>\n

\n
\n
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\n<\/span>\u56fe4. \u4fee\u6539 Modbus RTU \u901a\u4fe1\u505c\u6b62\u4f4d
\n<\/span>Modbus RTU\u65b0\u7248\u672c\u6307\u4ee4\u4ecb\u7ecd
\n<\/span>TIA V13 SP1\u7248\u672c\u8f6f\u4ef6\u4e2d\u63d0\u4f9b\u4e862\u4e2a\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe1. \u4e24\u4e2a\u7248\u672cModbus RTU\u6307\u4ee4
\n<\/span>
\n<\/span>\u65e9\u671f\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\uff08\u56fe1\u4e2dMODBUS (V2.2)\uff09\u4ec5\u53ef\u901a\u8fc7CM1241\u901a\u4fe1\u6a21\u5757\u6216CB1241\u901a\u4fe1\u677f\u8fdb\u884cModbus RTU\u901a\u4fe1\u3002 \u65b0\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\uff08\u56fe1\u4e2d MODBUS(RTU) V3.0\uff09\u6269\u5c55\u4e86Modbus RTU\u7684\u529f\u80fd\uff0c\u8be5\u6307\u4ee4\u9664\u4e86\u652f\u6301CM1241\u901a\u4fe1\u6a21\u5757\u3001CB1241\u901a\u4fe1\u677f\uff0c\u8fd8\u652f\u6301PROFINET\u6216 PROFIBUS\u5206\u5e03\u5f0fI\/O\u673a\u67b6\u4e0a\u7684PTP\u901a\u4fe1\u6a21\u5757\u5b9e\u73b0Modbus RTU\u901a\u4fe1\u3002
\n<\/span>\u65b0\u7248\u672cModbus RTU\u6307\u4ee4\u6240\u652f\u6301\u7684PTP\u6a21\u5757\u5982\u4e0b\u56fe2\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
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\u56fe2. \u65b0\u7248\u672c Modbus RTU\u6307\u4ee4\u6240\u652f\u6301\u7684PTP\u6a21\u5757
\n<\/span>
\n<\/span>\u65b0\u7248Modbus RTU\u6307\u4ee4\u7684\u4f7f\u7528
\n<\/span>\u65b0\u7248\u672cModbus RTU\u6307\u4ee4\u4e2d\u5305\u542bModbus RTU \u4e3b\u7ad9\u6307\u4ee4\u548c\u4ece\u7ad9\u6307\u4ee4\u3002\u672c\u6587\u4ee5 CPU1217C+CM1241 RS422\/485+ET200SP CM PTP \u6a21\u5757\u4e3a\u4f8b\uff0c\u4ecb\u7ecd\u65b0\u7248\u672c Modbus RTU \u6307\u4ee4\u4e3b\u4ece\u901a\u4fe1\u7684\u7f16\u7a0b\u6b65\u9aa4\u3002 \u5176\u4e2dCPU\u673a\u67b6CM1241 RS422\/485\u4f5c\u4e3aModbus RTU\u4ece\u7ad9\uff0c\u5206\u5e03\u5f0f\u673a\u67b6ET200SP\u4e2d CMPTP\u6a21\u5757\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\u3002\u7f51\u7edc\u7ed3\u6784\u56fe\u5982\u4e0b\uff1a
\n<\/span><\/p>\n

\n
\n
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\u56fe3. Modubus RTU \u7f51\u7edc\u901a\u4fe1\u7ed3\u6784\u56fe
\n<\/span>
\n<\/span>\u4f7f\u7528\u5230\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u5982\u4e0b:
\n<\/span>\u786c\u4ef6\uff1a \u2460 CPU1217C(\u8ba2\u8d27\u53f7:6ES7 217-1AG40-0XB0)\uff0c\u56fa\u4ef6\u7248\u672cV4.1.3 \u2461 CM1241 RS422\/485\u6a21\u5757(\u8ba2\u8d27\u53f7:6ES7 241-1CH32-0XB0)\uff0c\u56fa\u4ef6\u7248\u672cV2.1 \u2462 24V \u7535\u6e90PS307(\u8ba2\u8d27\u53f7:6ES7307-1KA02-0AA0\uff09 \u2463 ET200 SP IM155-6PN HF(\u8ba2\u8d27\u53f7:6ES7155-6AU00-0CN0\uff09 \u2464 CM PTP\u6a21\u5757(\u8ba2\u8d27\u53f7:6ES7137-6AA00-0BA0\uff09
\n<\/span>
\n<\/span>\u8f6f\u4ef6\uff1a \u2460 TIA V13 SP1 UP 9
\n<\/span>\u4e00\u3001\u8bbe\u5907\u7ec4\u6001
\n<\/span>1
\n<\/span>\u7ec4\u6001CM1241 RS422\/485\u6a21\u5757
\n<\/span>
\n<\/span>\u6253\u5f00\u8bbe\u5907\u89c6\u56fe\uff0c\u6dfb\u52a0S7-1200CPU\uff0c\u5e76\u5728\u786c\u4ef6\u76ee\u5f55\u91cc\u627e\u5230\u201c\u901a\u4fe1\u6a21\u5757\u201d\u2192\u201c\u70b9\u5230\u70b9\u201d\u2192\u201cCM1241(RS422\/485)\u201d,\u62d6\u62fd\u6b64\u6a21\u5757\u81f3CPU\u5de6\u4fa7\u5373\u53ef\uff0c\u5982\u4e0b\u56fe4\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe4. \u6dfb\u52a0 CM 1241 RS422\/485\u6a21\u5757
\n<\/span>
\n<\/span>\u9700\u8981\u6ce8\u610f\uff1a\u56fa\u4ef6\u7248\u672c>=V2.1 \u7684CM 1241 RS422\/485\u6a21\u5757\uff0c\u624d\u652f\u6301\u65b0\u7248\u672cModbus RTU\u6307\u4ee4\u3002
\n<\/span>
\n<\/span>\u63a5\u4e0b\u6765\uff0c\u5728\u201c\u8bbe\u5907\u89c6\u56fe\u201d\u4e2d\u7528\u9f20\u6807\u9009\u4e2dCM1241(RS422\/485)\u6a21\u5757\uff0c\u5728\u201c\u5c5e\u6027\u201d\u2192\u201c\u7aef\u53e3\u7ec4\u6001\u201d\u4e2d\u914d\u7f6e\u6b64\u6a21\u5757\u786c\u4ef6\u63a5\u53e3\u53c2\u6570\uff0c \u672c\u4f8b\u4ee5\u4f20\u8f93\u7387=9.6Kbps\uff0c\u5947\u5076\u6821\u9a8c=\u65e0\u5947\u5076\u6821\u9a8c\uff0c\u6570\u636e\u4f4d=8\u4f4d\u5b57\u7b26\uff0c\u505c\u6b62\u4f4d=1\u4e3a\u4f8b\u3002\u5982CM 1241 \u7aef\u53e3\u7ec4\u6001\u8bbe\u7f6e\u5982\u4e0b\u56fe5\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe5. CM1241 RS422\/485 \u6a21\u5757\u7aef\u53e3\u7ec4\u6001
\n<\/span>
\n<\/span>\u6700\u540e\u5728\u201c\u786c\u4ef6\u6807\u8bc6\u7b26\u201d\u91cc\u786e\u8ba4\u4e00\u4e0b\u786c\u4ef6\u6807\u8bc6\u7b26\u4e3a269\uff08\u8be5\u53c2\u6570\u5728\u7a0b\u5e8f\u7f16\u7a0b\u4e2d\u4f1a\u88ab\u4f7f\u7528\uff09\uff0c\u5982\u4e0b\u56fe6\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe6.\u786c\u4ef6\u6807\u8bc6\u7b26
\n<\/span>
\n<\/span>\u53e6\u5916\uff0cS7-1200 \u8fd8\u63d0\u4f9b\u4e86\u7cfb\u7edf\u548c\u65f6\u949f\u5b58\u50a8\u5668\u529f\u80fd\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u540e\u7eed\u6307\u4ee4\uff0c\u5efa\u8bae\u4f7f\u80fd\u8be5\u529f\u80fd\u3002\u5728CPU \u201c\u5c5e\u6027\u201d\u2192\u201c\u5e38\u89c4\u201d\u2192\u201c\u7cfb\u7edf\u548c\u65f6\u949f\u5b58\u50a8\u5668\u201d\u4f7f\u80fd\u7cfb\u7edf\u548c\u65f6\u949f\u5b58\u50a8\u5668\u529f\u80fd\uff0c\u5982\u56fe7\u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe7. \u7cfb\u7edf\u548c\u65f6\u949f\u5b58\u50a8\u5668\u529f\u80fd
\n<\/span> 2
\n<\/span>\u7ec4\u6001ET200 SP CM PtP\u6a21\u5757
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

a\u3001\u63d2\u5165\u4e00\u4e2aET200SP\u5206\u5e03\u5f0f\u7ad9\u70b9\u3002
\n<\/span>\u6253\u5f00\u7f51\u7edc\u89c6\u56fe\u5e76\u62d6\u5165\u4e00\u4e2aET200SP\u7ad9\u70b9\uff0c\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u76f8\u5e94\u7684IO\u63a7\u5236\u5668(\u672c\u4f8bCPU1217C \u4e3a IO \u63a7\u5236\u5668)\uff0c\u5982\u56fe8\u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe8. \u63d2\u5165ET200SP\u7ad9\u70b9
\n<\/span>
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

b\u3001\u7ec4\u6001ET200SP \u7ad9\u70b9\u3002
\n<\/span>\u5728ET200SP\u7684”\u8bbe\u5907\u89c6\u56fe”\u73af\u5883\u4e0b\uff0c\u4e3aET200SP \u7ad9\u70b9\u6dfb\u52a0\u4fe1\u53f7\u3001\u901a\u4fe1\u6a21\u5757\u548c\u670d\u52a1\u5668\u6a21\u5757\uff0c\u5728\u672c\u4f8b\u4e2d\u53ea\u6dfb\u52a0\u4e86CM PTP\u6a21\u5757\u548c\u670d\u52a1\u5668\u6a21\u5757\u3002 \u9700\u8981\u6ce8\u610f\uff1aET200SP\u7ad9\u70b9\u4e2d\uff0c\u670d\u52a1\u5668\u6a21\u5757\u662f\u5fc5\u987b\u7ec4\u6001\u7684\u3002\u670d\u52a1\u5668\u6a21\u5757\u968f\u63a5\u53e3\u6a21\u5757\u4e00\u8d77\u91c7\u8d2d\uff0c\u65e0\u9700\u5355\u72ec\u8d2d\u4e70\u3002
\n<\/span>ET200SP\u63a5\u53e3\u6a21\u5757\u9700\u8981\u4e3a\u5176\u5206\u914dIP\u5730\u5740\u548cDevice Name\uff0c \u6709\u5173ET200 SP \u5206\u5e03\u5f0fIO \u7ec4\u6001\u8be6\u7ec6\u6b65\u9aa4\uff0c\u8bf7\u53c2\u8003\u300aET200 SP\u4f7f\u7528\u5feb\u901f\u5165\u95e8\u300b\u3002
\n<\/span>\u300aET200 SP \u4f7f\u7528\u5feb\u901f\u5165\u95e8\u300b\u4e0b\u8f7d\u94fe\u63a5\uff1a https:\/\/support.industry.siemens.com\/cs\/cn\/zh\/view\/78304711
\n<\/span>\u5728ET200SP”\u8bbe\u5907\u89c6\u56fe”\u4e2d\u7528\u9f20\u6807\u9009\u4e2dCM PTP\uff0c\u5728\u201c\u5c5e\u6027\u201d\u2192\u201c\u5e38\u89c4\u201d\u2192\u201c\u63a5\u53e3\u201d\u2192\u201c\u64cd\u4f5c\u6a21\u5f0f\u201d\u4e2d\u914d\u7f6e\u6b64\u6a21\u5757\u786c\u4ef6\u63a5\u53e3\u53c2\u6570\uff0c \u672c\u4f8b\u8bbe\u5b9a\u201c\u6307\u5b9a\u5de5\u4f5c\u6a21\u5f0f”\uff1a”\u534a\u53cc\u5de5\uff08RS485\uff092\u7ebf\u5236\u64cd\u4f5c”\uff1b”\u63a5\u6536\u7ebf\u8def\u7684\u521d\u59cb\u72b6\u6001”\uff1a”\u65e0”\u3002\u5982\u4e0b\u56fe9\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe9. CM PTP \u64cd\u4f5c\u6a21\u5f0f
\n<\/span>
\n<\/span>\u63a5\u4e0b\u6765\uff0c\u5728\u201c\u5c5e\u6027\u201d\u2192\u201c\u5e38\u89c4\u201d\u2192\u201c\u63a5\u53e3\u201d\u2192\u201c\u7aef\u53e3\u7ec4\u6001\u201d\u4e2d\u914d\u7f6e\u6b64\u6a21\u5757\u7aef\u53e3\u7ec4\u6001\u53c2\u6570\uff0c \u672c\u4f8b\u8bbe\u5b9a”\u534f\u8bae”\uff1a”Freeport\/Modbus”\uff1b”\u7aef\u53e3\u53c2\u6570”\u8bbe\u7f6e\uff1a\u4f20\u8f93\u7387=9.6Kbps\uff0c\u5947\u5076\u6821\u9a8c=\u65e0\u5947\u5076\u6821\u9a8c\uff0c\u6570\u636e\u4f4d=8\u4f4d\u5b57\u7b26\uff0c\u505c\u6b62\u4f4d=1\u4e3a\u4f8b\u3002\u7aef\u53e3\u7ec4\u6001\u8bbe\u7f6e\u5982\u4e0b\u56fe10\u6240\u793a\uff1a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe10. CM PTP \u7aef\u53e3\u7ec4\u6001
\n<\/span>
\n<\/span>\u6700\u540e\u9700\u8981\u5728\u201c\u786c\u4ef6\u6807\u8bc6\u7b26\u201d\u91cc\u786e\u8ba4\u4e00\u4e0bCM PTP \u6a21\u5757\u786c\u4ef6\u6807\u8bc6\u7b26\uff0c\u8be5\u53c2\u6570\u5728\u7a0b\u5e8f\u7f16\u7a0b\u4e2d\u4f1a\u88ab\u4f7f\u7528\u3002 \u4e8c\u3001\u8f6f\u4ef6\u7f16\u7a0b
\n<\/span>1
\n<\/span>Modbus RTU \u4e3b\u7ad9\u7f16\u7a0b
\n<\/span>
\n<\/span>Modbus RTU\u4e3b\u7ad9\u7f16\u7a0b\u9700\u8981\u8c03\u7528Modbus_Comm_Load\u6307\u4ee4\u548cModbus_Master\u6307\u4ee4,\u5176\u4e2dModbus_Comm_Load\u6307\u4ee4\u901a\u8fc7Modbus RTU\u534f\u8bae\u5bf9\u901a\u4fe1\u6a21\u5757\u8fdb\u884c\u7ec4\u6001\uff0cModbus_Master\u6307\u4ee4\u53ef\u901a\u8fc7\u7531Modbus_Comm_Load\u6307\u4ee4\u7ec4\u6001\u7684\u7aef\u53e3\u4f5c\u4e3aModbus\u4e3b\u7ad9\u8fdb\u884c\u901a\u4fe1,Modbus_Comm_Load\u6307\u4ee4\u7684MB_DB\u53c2\u6570\u5fc5\u987b\u8fde\u63a5\u5230Modbus_Master\u6307\u4ee4\u7684\uff08\u9759\u6001\uff09MB_DB\u53c2\u6570\u3002
\n<\/span>\u672c\u4f8b\u4e2d\u5206\u5e03\u5f0f\u673a\u67b6ET200SP\u4e2dCM PTP\u6a21\u5757\u4f5c\u4e3aModbus RTU\u4e3b\u7ad9\uff0c\u5176\u76f8\u5173\u7f16\u7a0b\u6b65\u9aa4\u5982\u4e0b\uff1a
\n<\/span>
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

a\u3001OB1\u4e2d\u63d2\u5165\u4e00\u4e2aFC\u51fd\u6570\uff0c\u5e76\u5728\u51fd\u6570\u4e2d\u62d6\u5165Modbus_Comm_Load\u6307\u4ee4\u548cModbus_Master\u6307\u4ee4\u3002\u5982\u56fe11\u6240\u793a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe11. \u62d6\u5165Modbus RTU \u4e3b\u7ad9\u6307\u4ee4
\n<\/span>
\n<\/span>Modbus_Comm_Load\u6307\u4ee4\u5404\u53c2\u6570\u610f\u4e49\u5982\u4e0b\u88681\u6240\u793a\uff1a
\n<\/span><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n
\u5f15\u811a
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u8bf4\u660e
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
REQ
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u4e0a\u5347\u6cbf\u89e6\u53d1
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
PORT
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u901a\u4fe1\u7aef\u53e3\u7684\u786c\u4ef6\u6807\u8bc6\u7b26
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
BAUD
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6ce2\u7279\u7387\u9009\u62e9\uff1a3600\uff0c6000\uff0c12000\uff0c2400\uff0c4800\uff0c9600\uff0c19200\uff0c38400\uff0c57600\uff0c76800\uff0c115200
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
PARITY
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5947\u5076\u68c0\u9a8c\u9009\u62e9\uff1a0-\u65e0\uff1b1-\u5947\u6821\u9a8c\uff1b2-\u5076\u6821\u9a8c
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
FLOW_CTRL
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6d41\u63a7\u5236\u9009\u62e9\uff1a0-\uff08\u9ed8\u8ba4\u503c\uff09\u65e0\u6d41\u63a7\u5236
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
RTS_ON_DLY
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
RTS\u5ef6\u65f6\u9009\u62e9\uff1a0-\uff08\u9ed8\u8ba4\u503c\uff09
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
RTS_OFF_DLY
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
RTS\u5173\u65ad\u5ef6\u65f6\u9009\u62e9\uff1a0-\uff08\u9ed8\u8ba4\u503c\uff09
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
RESP_TO
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u54cd\u5e94\u8d85\u65f6\uff1a\u9ed8\u8ba4\u503c = 1000 ms\u3002MB_MASTER \u5141\u8bb8\u7528\u4e8e\u4ece\u7ad9\u54cd\u5e94\u7684\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
MB_DB
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5bf9 Modbus_Master \u6216 Modbus_Slave \u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u7684\u5f15\u7528\u3002 MB_DB \u53c2\u6570\u5fc5\u987b\u4e0e Modbus_Master \u6216 Modbus_Slave \u6307\u4ee4\u4e2d\u7684\u9759\u6001\u53d8\u91cfMB_DB \u53c2\u6570\u76f8\u8fde\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DONE
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u5e76\u4e14\u6ca1\u6709\u9519\u8bef\uff0cDONE \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
ERROR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u51fa\u9519\uff0c\u5219 ERROR \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002STATUS \u53c2\u6570\u4e2d\u7684\u9519\u8bef\u4ee3\u7801\u4ec5\u5728 ERROR = TRUE \u7684\u5468\u671f\u5185\u6709\u6548\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
STATUS
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u7aef\u53e3\u7ec4\u6001\u9519\u8bef\u4ee3\u7801\uff0c\u8bf7\u53c2\u8003TIA \u8f6f\u4ef6\u5728\u7ebf\u5e2e\u52a9\u6216S7-1200 \u7cfb\u7edf\u624b\u518c\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u88681 MB_COMM_LOAD\u6307\u4ee4\u53c2\u6570\u610f\u4e49 Modbus_Master\u6307\u4ee4\u5404\u53c2\u6570\u610f\u4e49\u5982\u4e0b\u88682\u6240\u793a\uff1a
\n<\/span><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n
\u5f15\u811a
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u8bf4\u660e
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
EN
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u4f7f\u80fd\u7aef
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
REQ
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
TRUE = \u8bf7\u6c42\u5411 Modbus \u4ece\u7ad9\u53d1\u9001\u6570\u636e \uff0c\u5efa\u8bae\u91c7\u7528\u4e0a\u5347\u6cbf\u89e6\u53d1
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
MB_ADDR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
Modbus RTU\u4ece\u7ad9\u5730\u5740\u3002\u9ed8\u8ba4\u5730\u5740\u8303\u56f4\uff1a0\u81f3247\uff1b\u6269\u5c55\u5730\u5740\u8303\u56f4\uff1a0\u81f365535\u3002\u503c0\u88ab\u4fdd\u7559\u7528\u4e8e\u5c06\u6d88\u606f\u5e7f\u64ad\u5230\u6240\u6709Modbus\u4ece\u7ad9\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
MODE
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6a21\u5f0f\u9009\u62e9\uff1a\u6307\u5b9a\u8bf7\u6c42\u7c7b\u578b\uff08\u8bfb\u53d6\u6216\u5199\u5165\uff09\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DATA_ADDR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u4ece\u7ad9\u4e2d\u7684\u8d77\u59cb\u5730\u5740\uff1a\u6307\u5b9aModbus\u4ece\u7ad9\u4e2d\u5c06\u4f9b\u8bbf\u95ee\u7684\u6570\u636e\u7684\u8d77\u59cb\u5730\u5740\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DATA_LEN
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6570\u636e\u957f\u5ea6\uff1a\u6307\u5b9a\u8981\u5728\u8be5\u8bf7\u6c42\u4e2d\u8bbf\u95ee\u7684\u4f4d\u6570\u6216\u5b57\u6570\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DATA_PTR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6570\u636e\u6307\u9488\uff1a\u6307\u5411\u8981\u8fdb\u884c\u6570\u636e\u5199\u5165\u6216\u6570\u636e\u8bfb\u53d6\u7684\u6807\u8bb0\u6216\u6570\u636e\u5757\u5730\u5740\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DONE
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5b8c\u6210\u4f4d\uff1a\u4e0a\u4e00\u8bf7\u6c42\u5df2\u5b8c\u6210\u4e14\u6ca1\u6709\u51fa\u9519\u540e\uff0cDONE \u4f4d\u5c06\u4fdd\u6301\u4e3a TRUE \u4e00\u4e2a\u626b\u63cf\u5468\u671f\u65f6\u95f4\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
BUSY
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
FALSE \u2013 Modbus_Master \u65e0\u6fc0\u6d3b\u547d\u4ee4: TRUE \u2013 Modbus_Master \u547d\u4ee4\u6267\u884c\u4e2d
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
ERROR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5bf9 Modbus_Master \u6216 Modbus_Slave \u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u7684\u5f15\u7528\u3002 MB_DB \u53c2\u6570\u5fc5\u987b\u4e0e Modbus_Master \u6216 Modbus_Slave \u6307\u4ee4\u4e2d\u7684\u9759\u6001\u53d8\u91cfMB_DB \u53c2\u6570\u76f8\u8fde\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
STATUS
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u5e76\u4e14\u6ca1\u6709\u9519\u8bef\uff0cDONE \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
ERROR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u51fa\u9519\uff0c\u5219 ERROR \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002STATUS \u53c2\u6570\u4e2d\u7684\u9519\u8bef\u4ee3\u7801\u4ec5\u5728 ERROR = TRUE \u7684\u5468\u671f\u5185\u6709\u6548\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
STATUS
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u9519\u8bef\u4ee3\u7801
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u88682 Modbus_Master\u6307\u4ee4\u53c2\u6570\u610f\u4e49
\n<\/span>\u6ce8\u610f
\n<\/span>\u2460 Modbus_Comm_Load\u6307\u4ee4\u4e0d\u5efa\u8bae\u5728\u542f\u52a8\u7ec4\u7ec7\u5757OB100\u4e2d\u8c03\u7528\uff0c\u5efa\u8bae\u5728OB1\u4e2d\u8c03\u7528\u3002Modbus_Comm_Load\u6307\u4ee4\u5728OB1\u4e2d\u8c03\u7528\u65f6\uff0c\u5176\u8f93\u5165\u4f4d\u201cREQ\u201d\u9700\u4f7f\u7528\u4e0a\u5347\u6cbf\u89e6\u53d1\uff0c\u672c\u4f8b\u4e2d\u8be5\u8f93\u5165\u4f4d\u91c7\u7528 \u201cFirstScan\u201d \u7cfb\u7edf\u5b58\u50a8\u5668\u4f4d\u3002 \u2461 Modbus_Comm_Load\u6307\u4ee4\u80cc\u666f\u6570\u636e\u5757\u4e2d\u7684\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u7528\u4e8e\u63cf\u8ff0PTP\u6a21\u5757\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6709\u6548\u7684\u5de5\u4f5c\u6a21\u5f0f\u5305\u62ec\uff1a
\n<\/span>\u00b7 0 = \u5168\u53cc\u5de5 (RS232)
\n<\/span>\u00b7 1 = \u5168\u53cc\u5de5 (RS422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u70b9\u5bf9\u70b9\uff09
\n<\/span>\u00b7 2 = \u5168\u5168\u53cc\u5de5 (RS 422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u591a\u70b9\u4e3b\u7ad9\uff0cCM PtP (ET 200SP)\uff09
\n<\/span>\u00b7 3 = \u5168\u5168\u53cc\u5de5 (RS 422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u591a\u70b9\u4ece\u7ad9\uff0cCM PtP (ET 200SP)\uff09
\n<\/span>\u00b7 4 = \u534a\u53cc\u5de5 (RS485) \u4e8c\u7ebf\u5236\u6a21\u5f0f
\n<\/span>\u8be5\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u9ed8\u8ba4\u6570\u636e\u4e3a0\uff08RS232 \u5168\u53cc\u5de5\u6a21\u5f0f\uff09\uff0c\u9700\u8981\u6839\u636eCM PTP\u6a21\u5757\u5b9e\u9645\u7ec4\u6001\u4fee\u6539\u8be5\u6570\u503c\uff0c\u672c\u4f8b\u4e2dCM PTP\u6a21\u5757\u5de5\u4f5c\u5728RS485\u534a\u53cc\u5de5\u6a21\u5f0f\u9700\u8981\u5c06\u8be5\u6570\u503c\u4fee\u6539\u4e3a4\uff0c\u5982\u56fe12\u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe12. Modbus_Comm_Load\u80cc\u666f\u6570\u636e\u5757\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u4fee\u6539\u4e3a4
\n<\/span>\u2462 Modbus_Master\u6307\u4ee4\u7684\u201cDATA_PTR\u201d\u53c2\u6570\u7528\u4e8e\u6307\u5411\u8981\u8fdb\u884c\u6570\u636e\u5199\u5165\u6216\u6570\u636e\u8bfb\u53d6\u7684\u6570\u636e\u533a\u57df\u5730\u5740\uff0c\u8be5\u6570\u636e\u533a\u57df\u652f\u6301\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u6216\u8005\u975e\u4f18\u5316\uff08\u6807\u51c6\u7684\uff09\u6570\u636e\u5757\uff0c\u5efa\u8bae\u91c7\u7528\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u3002 \u672c\u4f8b\u4e2d\u4f7f\u7528\u7684\u6570\u636e\u533a\u4e3a\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\uff0c\u5728\u6570\u636e\u5757\u7684\u5c5e\u6027\u4e2d\u53d6\u6d88\u201c\u4f18\u5316\u7684\u5757\u8bbf\u95ee\u201d\u5373\u53ef\u5c06\u6570\u636e\u5757\u4fee\u6539\u4e3a\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\uff08\u9f20\u6807\u53f3\u952e\u6570\u636e\u5757\uff0c\u9009\u62e9\u201c\u5c5e\u6027\u201d\uff0c\u53d6\u6d88\u201c\u4f18\u5316\u7684\u5757\u8bbf\u95ee\u201d\uff09\uff0c\u5982\u56fe13\u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe13. \u8bbe\u7f6e\u6570\u636e\u5757\u4e3a\u975e\u4f18\u5316\u8bbf\u95ee
\n<\/span>\u5f53Modbus_Master\u6307\u4ee4\u7684\u201cDATA_PTR\u201d\u6307\u5411\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u65f6\uff0c\u8be5\u8f93\u5165\u53c2\u6570\u9700\u8981\u4f7f\u7528\u6307\u9488\u65b9\u5f0f\u586b\u5199\u5982P#DB3.DBX0.0 WORD 5 \u65b9\u5f0f\u586b\u5199\u3002 \u2463 \u5f53Modbus RTU\u7f51\u7edc\u4e2d\u5b58\u5728\u591a\u4e2amodbus RTU\u4ece\u7ad9\u6216\u4e00\u4e2amodbus RTU\u4ece\u7ad9\u540c\u65f6\u9700\u8981\u8bfb\u64cd\u4f5c\u548c\u5199\u64cd\u4f5c\uff0c\u5219\u9700\u8981\u8c03\u7528\u591a\u4e2aModbus_Master\u6307\u4ee4\uff0cModbus_Master\u6307\u4ee4\u4e4b\u95f4\u9700\u8981\u91c7\u7528\u8f6e\u8be2\u65b9\u5f0f\u8c03\u7528\u3002 \u4e0b\u56fe14\u7528\u4e8e\u63cf\u8ff0\u4e24\u4e2aModbus_Master\u6307\u4ee4\u8f6e\u8be2\u8c03\u7528\u7684\u65b9\u5f0f\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n

\u56fe14.Modbus_Master\u8f6e\u8be2\u8c03\u7528\u65b9\u5f0f
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

b\u3001\u63d2\u5165”Pull or plug of modules” \u4e2d\u65adOB83\u3002
\n<\/span>\u672c\u4f8b\u4e2dModbus RTU\u4e3b\u7ad9\u6a21\u5757\u5b89\u88c5\u5728\u5206\u5e03\u5f0fIO\u7ad9\u70b9\u4e0a\uff0c\u56e0\u6b64\u7a0b\u5e8f\u4e2d\u9700\u8981\u8003\u8651\u5206\u5e03\u5f0fIO\u7ad9\u70b9\u6545\u969c\u3001CM PTP \u6a21\u5757\u63d2\u62d4\u6a21\u5757\u7b49\u6545\u969c\u3002 \u5206\u5e03\u5f0fIO\u7ad9\u70b9\u4e2d\u63d2\u51fa\u3001\u62d4\u5165\u6a21\u5757\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u90fd\u4f1a\u8c03\u7528\u4e00\u6b21OB83\u3002\u901a\u8fc7OB83\u63a5\u53e3\u533a\u7684\u8f93\u5165\u53d8\u91cf\u201c16#Event_Class\u201d\u5224\u65ad\u6545\u969c\u7684\u6a21\u5757\u548c\u7c7b\u578b\uff1a\u4e8b\u4ef6\u7c7b\u578b16#39\u8868\u793a\u6a21\u5757\u88ab\u62d4\u51fa\uff0c\u4e8b\u4ef6\u7c7b\u578b16#38\u8868\u793a\u6a21\u5757\u88ab\u63d2\u5165\u3002 CM PTP \u6a21\u5757\u88ab\u91cd\u65b0\u63d2\u5165\u7684\u65f6\u5019\uff0c\u9700\u8981\u5728\u4e2d\u65adOB83\u4e2d\u8c03\u7528Modbus_Comm_Load \u6307\u4ee4\u5bf9\u901a\u4fe1\u6a21\u5757\u8fdb\u884c\u91cd\u65b0\u7ec4\u6001\uff0c\u5982\u56fe15\u6240\u793a\u3002<\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe15. OB83\u4e2d\u518d\u6b21\u8c03\u7528Modbus_Comm_Load \u6307\u4ee4
\n<\/span>\u6ce8\u610f
\n<\/span>\u2460 OB83 \u4e2d\u8c03\u7528Modbus_Comm_Load\u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u9700\u8981\u4e0eOB1\u4e2d\u8c03\u7528\u7684Modbus_Comm_Load\u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u76f8\u540c\u3002 \u2461 CM PTP\u6a21\u5757\u7684\u786c\u4ef6\u6807\u8bc6\u7b26\u4e5f\u53ef\u4ee5\u5728”PLC\u53d8\u91cf”—>”\u7cfb\u7edf\u5e38\u6570”\u4e2d\u67e5\u8be2\uff0c\u5982\u56fe16. \u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe16. \u7cfb\u7edf\u5e38\u91cf
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

c\u3001\u63d2\u5165”Rack or Station failure” \u4e2d\u65adOB86\u3002
\n<\/span>\u5206\u5e03\u5f0fIO\u7ad9\u70b9\u6545\u969c\u548c\u6062\u590d\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u90fd\u4f1a\u8c03\u7528\u4e00\u6b21OB86\u3002\u901a\u8fc7OB86\u63a5\u53e3\u533a\u7684\u8f93\u5165\u53d8\u91cf\u201c16#Event_Class\u201d\u5224\u65ad\u6545\u969c\u7684\u6a21\u5757\u548c\u7c7b\u578b\uff1a\u4e8b\u4ef6\u7c7b\u578b16#39\u8868\u793a\u7ad9\u70b9\u6545\u969c\uff0c\u4e8b\u4ef6\u7c7b\u578b16#38\u8868\u793a\u7ad9\u70b9\u6062\u590d\u3002 CM PTP \u6a21\u5757\u6240\u5728\u7684IO\u7ad9\u70b9\u6062\u590d\u65f6\uff0c\u9700\u8981\u5728\u4e2d\u65adOB86\u4e2d\u8c03\u7528Modbus_Comm_Load \u6307\u4ee4\u5bf9\u901a\u4fe1\u6a21\u5757\u8fdb\u884c\u91cd\u65b0\u7ec4\u6001\uff0c\u5982\u56fe17\u6240\u793a\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe17. OB86\u4e2d\u8c03\u7528Modbus_Comm_Load \u6307\u4ee4
\n<\/span>
\n<\/span>
\n<\/span>\u6ce8\u610f
\n<\/span>\u2460OB86 \u4e2d\u8c03\u7528Modbus_Comm_Load\u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u9700\u8981\u4e0eOB1\u4e2d\u8c03\u7528\u7684Modbus_Comm_Load\u6307\u4ee4\u7684\u80cc\u666f\u6570\u636e\u5757\u76f8\u540c\u3002 \u2461 \u5206\u5e03\u5f0fIO \u7ad9\u70b9\u7684\u786c\u4ef6\u6807\u8bc6\u7b26\u4e5f\u53ef\u4ee5\u5728”PLC\u53d8\u91cf”—>”\u7cfb\u7edf\u5e38\u6570”\u4e2d\u67e5\u8be2\u3002
\n<\/span>2 Modbus RTU \u4ece\u7ad9\u7f16\u7a0b
\n<\/span>
\n<\/span>Modbus RTU\u4ece\u7ad9\u7f16\u7a0b\u9700\u8981\u8c03\u7528Modbus_Comm_Load\u6307\u4ee4\u548cModbus_Slave\u6307\u4ee4\uff0c\u5176\u4e2dModbus_Comm_Load\u6307\u4ee4\u901a\u8fc7Modbus RTU\u534f\u8bae\u5bf9\u901a\u4fe1\u6a21\u5757\u8fdb\u884c\u7ec4\u6001\uff0cModbus_Slave\u6307\u4ee4\u53ef\u901a\u8fc7\u7531Modbus_Comm_Load\u6307\u4ee4\u7ec4\u6001\u7684\u7aef\u53e3\u4f5c\u4e3aModbus\u4ece\u7ad9\u8fdb\u884c\u901a\u4fe1\uff0cModbus_Comm_Load\u6307\u4ee4\u7684MB_DB\u53c2\u6570\u5fc5\u987b\u8fde\u63a5\u5230Modbus_Slaver\u6307\u4ee4\u7684\uff08\u9759\u6001\uff09MB_DB\u53c2\u6570\u3002
\n<\/span>\u672c\u4f8b\u4e2dCPU\u673a\u67b6CM1241 RS422\/485\u4f5c\u4e3aModbus RTU\u4ece\u7ad9\uff0c\u5176\u76f8\u5173\u7f16\u7a0b\u6b65\u9aa4\u5982\u4e0b\uff1a
\n<\/span><\/p>\n

\n
<\/div>\n<\/div>\n

OB1\u4e2d\u63d2\u5165\u4e00\u4e2aFC\u51fd\u6570\uff0c\u5e76\u5728\u51fd\u6570\u4e2d\u62d6\u5165Modbus_Comm_Load\u6307\u4ee4\u548cModbus_Slave\u6307\u4ee4\u3002\u5982\u56fe18\u6240\u793a
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe18. \u62d6\u5165Modbus RTU \u4ece\u7ad9\u6307\u4ee4
\n<\/span>
\n<\/span>Modbus_Slave\u6307\u4ee4\u5404\u53c2\u6570\u610f\u4e49\u5982\u4e0b\u88683\u6240\u793a\uff1a
\n<\/span><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
\n
\u5f15\u811a
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u8bf4\u660e
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
MB_ADDR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
Modbus \u4ece\u7ad9\u7684\u6807\u51c6\u5bfb\u5740\uff1a \u6807\u51c6\u5bfb\u5740\u8303\u56f4\uff081 \u5230 247\uff09 \u6269\u5c55\u5bfb\u5740\u8303\u56f4\uff080 \u5230 65535\uff09
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
MB_HOLD_REG
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u6570\u636e\u6307\u9488\uff0c\u6307\u5411Modbus \u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u5730\u5740\uff0c Modbus \u4fdd\u6301\u5bc4\u5b58\u5668\u53ef\u4ee5\u4e3aM\u5b58\u50a8\u533a\u6216DB\u6570\u636e\u533a\u3002 \u5982\u679cModbus \u4fdd\u6301\u5bc4\u5b58\u5668\u4e3aDB\u6570\u636e\u533a\uff0c\u5219DB\u6570\u636e\u533a\u652f\u6301\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u6216\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\uff0c\u5efa\u8bae\u91c7\u7528\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
NDR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u53ef\u7528\u7684\u65b0\u6570\u636e\uff1a
\n<\/span>\u00b7 FALSE – \u65e0\u65b0\u6570\u636e
\n<\/span>\u00b7 TRUE \u2013 \u8868\u793a\u65b0\u6570\u636e\u5df2\u7531 Modbus \u4e3b\u7ad9\u5199\u5165 \u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u5e76\u4e14\u6ca1\u6709\u9519\u8bef\uff0cNDR \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
DR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u8bfb\u53d6\u6570\u636e\uff1a
\n<\/span>\u00b7 FALSE – \u65e0\u65b0\u6570\u636e
\n<\/span>\u00b7 TRUE \u2013\u8868\u793a\u8be5\u6307\u4ee4\u5df2\u5c06 Modbus \u4e3b\u7ad9\u63a5\u6536\u5230\u7684\u6570\u636e\u5b58\u50a8\u5728\u76ee\u6807\u533a\u57df\u4e2d\u3002 \u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u5e76\u4e14\u6ca1\u6709\u9519\u8bef\uff0cDR \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
ERROR
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u5982\u679c\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u5b8c\u6210\u51fa\u9519\uff0c\u5219 ERROR \u4f4d\u5c06\u53d8\u4e3a TRUE \u5e76\u4fdd\u6301\u4e00\u4e2a\u5468\u671f\u3002\u5982\u679c\u6267\u884c\u56e0\u9519\u8bef\u800c\u7ec8\u6b62\uff0c\u5219 STATUS \u53c2\u6570\u4e2d\u7684\u9519\u8bef\u4ee3\u7801\u4ec5\u5728 ERROR = TRUE \u7684\u5468\u671f\u5185\u6709\u6548\u3002
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n
\n
STATUS
\n<\/span><\/div>\n
<\/div>\n<\/td>\n
\n
\u9519\u8bef\u4ee3\u7801
\n<\/span><\/div>\n
<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u88683 Modbus_Slave\u6307\u4ee4\u53c2\u6570\u610f\u4e49
\n<\/span>\u6ce8\u610f
\n<\/span>\u2460 Modbus_Comm_Load\u6307\u4ee4\u4e0d\u5efa\u8bae\u5728\u542f\u52a8\u7ec4\u7ec7\u5757OB100\u4e2d\u8c03\u7528\uff0c\u5efa\u8bae\u5728OB1\u4e2d\u8c03\u7528\u3002Modbus_Comm_Load\u6307\u4ee4\u5728OB1\u4e2d\u8c03\u7528\u65f6\uff0c\u5176\u8f93\u5165\u4f4d\u201cREQ\u201d\u9700\u4f7f\u7528\u4e0a\u5347\u6cbf\u89e6\u53d1\uff0c\u672c\u4f8b\u4e2d\u8be5\u8f93\u5165\u4f4d\u91c7\u7528 \u201cFirstScan\u201d \u7cfb\u7edf\u5b58\u50a8\u5668\u4f4d\u3002 \u2461 Modbus_Comm_Load\u6307\u4ee4\u80cc\u666f\u6570\u636e\u5757\u4e2d\u7684\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u7528\u4e8e\u63cf\u8ff0PTP\u6a21\u5757\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6709\u6548\u7684\u5de5\u4f5c\u6a21\u5f0f\u5305\u62ec\uff1a
\n<\/span>\u00b7 0 = \u5168\u53cc\u5de5 (RS232)
\n<\/span>\u00b7 1 = \u5168\u53cc\u5de5 (RS422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u70b9\u5bf9\u70b9\uff09
\n<\/span>\u00b7 2 = \u5168\u5168\u53cc\u5de5 (RS 422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u591a\u70b9\u4e3b\u7ad9\uff0cCM PtP (ET 200SP)\uff09
\n<\/span>\u00b7 3 = \u5168\u5168\u53cc\u5de5 (RS 422) \u56db\u7ebf\u5236\u6a21\u5f0f\uff08\u591a\u70b9\u4ece\u7ad9\uff0cCM PtP (ET 200SP)\uff09
\n<\/span>\u00b7 4 = \u534a\u53cc\u5de5 (RS485) \u4e8c\u7ebf\u5236\u6a21\u5f0f
\n<\/span>\u8be5\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u9ed8\u8ba4\u6570\u636e\u4e3a0\uff08RS232 \u5168\u53cc\u5de5\u6a21\u5f0f\uff09\uff0c\u9700\u8981\u6839\u636eCM1241 RS422\/485\u6a21\u5757\u5b9e\u9645\u7ec4\u6001\u4fee\u6539\u8be5\u6570\u503c\uff0c\u672c\u4f8b\u4e2dCM1241 RS422\/485\u6a21\u5757\u5de5\u4f5c\u5728RS485\u534a\u53cc\u5de5\u6a21\u5f0f\u9700\u8981\u5c06\u8be5\u6570\u503c\u4fee\u6539\u4e3a4\uff0c\u5982\u4f55\u4fee\u6539\u201cMODE\u201d\u9759\u6001\u53d8\u91cf\u89c1\u56fe12.\u6240\u793a\u3002
\n<\/span>\u2462 Modbus_Slave\u6307\u4ee4\u7684\u201cMB_HOLD_REG\u201d\u7528\u4e8e\u6307\u5411Modbus\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u6570\u636e\u533a\u57df\u5730\u5740\uff0c\u8be5\u6570\u636e\u533a\u57df\u652f\u6301\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u6216\u8005\u975e\u4f18\u5316\uff08\u6807\u51c6\u7684\uff09\u6570\u636e\u5757\uff0c\u5efa\u8bae\u91c7\u7528\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\u3002 \u672c\u4f8b\u4e2d\u4f7f\u7528\u7684\u6570\u636e\u533a\u4e3a\u975e\u4f18\u5316\u8bbf\u95ee\u7684\u6570\u636e\u5757\uff0c\u56fa\u8be5\u8f93\u5165\u53c2\u6570\u9700\u8981\u4f7f\u7528\u6307\u9488\u65b9\u5f0f\u586b\u5199\u5982P#DB6.DBX0.0 WORD 100 \u65b9\u5f0f\u586b\u5199\u3002 \u5982\u4f55\u5728\u6570\u636e\u5757\u7684\u5c5e\u6027\u4e2d\u53d6\u6d88\u201c\u4f18\u5316\u7684\u5757\u8bbf\u95ee\u201d\uff0c\u89c1\u56fe13. \u6240\u793a\u3002
\n<\/span>\u5c06\u7a0b\u5e8f\u4e0b\u8f7d\u5230PLC\u4e2d\uff0c\u5e76\u4f7f\u7528Profibus DP\u901a\u4fe1\u7535\u7f06\u5c06CM1241 RS422\/485\u4e0eCM PTP\u4e32\u53e3\u6a21\u5757\u8fde\u63a5\u8d77\u6765\uff0c\u5373\u53ef\u6d4b\u8bd5Modbus RTU\u901a\u4fe1\u4e86\u3002
\n<\/span>\u4e09\u3001\u5e38\u89c1\u95ee\u9898\u6c47\u603b
\n<\/span>1. \u65b0\u7248\u672c Modbus RTU\u6307\u4ee4\u7684\u4f7f\u7528\u662f\u5426\u5b58\u5728\u4e9b\u9650\u5236\u6761\u4ef6? \u65b0\u7248\u672c Modbus RTU\u6307\u4ee4\u901a\u8fc7CM1241\u901a\u4fe1\u6a21\u5757\u6216CB1241\u901a\u4fe1\u677f\u8fdb\u884cModbus RTU\u901a\u4fe1\u65f6\uff0c\u9700\u8981\u6ee1\u8db3\u5982\u4e0b\u6761\u4ef6\uff1a
\n<\/span>a. S7-1200 CPU \u7684\u56fa\u4ef6\u7248\u672c\u4e0d\u80fd\u4f4e\u4e8eV4.1\uff1b
\n<\/span>b. CM1241\u901a\u4fe1\u6a21\u5757\u6216CB1241\u901a\u4fe1\u677f\u7684\u56fa\u4ef6\u4e0d\u80fd\u4f4e\u4e8eV2.1\u3002
\n<\/span>S7-1200 V4.0 \u56fa\u4ef6CPU\u53ef\u4ee5\u901a\u8fc7\u56fa\u4ef6\u66f4\u65b0\u5230V4.1\u7248\u672c\uff0cV2.0\u56fa\u4ef6\u7684CM1241\u901a\u4fe1\u6a21\u5757\u4e5f\u53ef\u4ee5\u901a\u8fc7\u56fa\u4ef6\u66f4\u65b0\u7684\u65b9\u5f0f\u66f4\u65b0\u5230V2.1\u7248\u672c\u3002
\n<\/span>
\n<\/span>2 .Modbus_Comm_Load\u6307\u4ee4\u80cc\u666f\u6570\u636e\u5757\u4e2d\u7684\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48?\u4e3a\u4ec0\u4e48\u4e00\u822c\u9879\u76ee\u4e2d\uff0c\u90fd\u9700\u8981\u5bf9\u8be5\u53d8\u91cf\u8fdb\u884c\u4fee\u6539\uff1f \u65b0\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\u6269\u5c55\u4e86Modbus RTU\u7684\u529f\u80fd\uff0c\u8be5\u6307\u4ee4\u9664\u4e86\u652f\u6301CM1241\u901a\u4fe1\u6a21\u5757\u3001CB1241\u901a\u4fe1\u677f\u8fd8\u652f\u6301PROFINET\u6216PROFIBUS\u5206\u5e03\u5f0fI\/O\u673a\u67b6\u4e0a\u7684PTP\u901a\u4fe1\u6a21\u5757\u5b9e\u73b0Modbus RTU\u901a\u4fe1\u3002 \u800c\u5206\u5e03\u5f0fI\/O\u673a\u67b6\u4e0a\u7684PTP\u901a\u4fe1\u6a21\u5757\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u4ee5ET200SP CM PtP\u6a21\u5757\uff08\u8ba2\u8d27\u53f7\uff1a6ES7137-6AA00-0BA0\uff09\u4e3a\u4f8b\uff0c\u5176\u53ef\u4ee5\u652f\u6301RS232\u3001RS485\u4ee5\u53caRS422\u7b49\u591a\u79cd\u5de5\u4f5c\u6a21\u5f0f\u3002 Modbus_Comm_Load\u6307\u4ee4\u80cc\u666f\u6570\u636e\u5757\u4e2d\u7684\u9759\u6001\u53d8\u91cf\u201cMODE\u201d\u5219\u7528\u4e8e\u5b9a\u4e49PTP\u6a21\u5757\u7684\u5de5\u4f5c\u6a21\u5f0f\u3002 \u201cMODE\u201d\u7684\u9ed8\u8ba4\u6570\u503c\u4e3a0\uff0c\u4ee3\u8868\u201c\u5168\u53cc\u5de5 (RS232)\u201d\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5b9e\u9645\u9879\u76ee\u7ec4\u6001\u4e2d\u5219\u9700\u8981\u6839\u636e\u5b9e\u9645\u5de5\u4f5c\u6a21\u5f0f\u5bf9\u8be5\u53d8\u91cf\u8fdb\u884c\u4fee\u6539\u3002
\n<\/span>
\n<\/span>3. Modbus_Comm_Load\u6307\u4ee4\u80fd\u5426\u5728\u542f\u52a8\u7ec4\u7ec7\u5757OB100\u4e2d\u8c03\u7528?Modbus_Comm_Load\u6307\u4ee4\u4e0d\u5efa\u8bae\u5728\u542f\u52a8\u7ec4\u7ec7\u5757OB100\u4e2d\u8c03\u7528\u3002\u65b0\u7248\u672c\u7684Modbus RTU\u6307\u4ee4\u6269\u5c55\u4e86Modbus RTU\u7684\u529f\u80fd\uff0c\u8be5\u6307\u4ee4\u652f\u6301PROFINET\u6216PROFIBUS\u5206\u5e03\u5f0f I\/O \u673a\u67b6\u4e0a\u7684PtP\u901a\u4fe1\u6a21\u5757\u5b9e\u73b0Modbus RTU\u901a\u4fe1\u3002 \u64cd\u4f5c\u7cfb\u7edf\u9700\u8981\u8c03\u7528\u8bfb\u53d6\u6570\u636e\u8bb0\u5f55\u548c\u5199\u5165\u6570\u636e\u8bb0\u5f55\u7b49\u6307\u4ee4\u6765\u5b9e\u73b0\u4e0e\u5206\u5e03\u5f0fI\/O\u673a\u67b6\u4e0aPtP\u6a21\u5757\u7684Modbus RTU\u901a\u4fe1\u3002\u8bfb\u53d6\u6570\u636e\u8bb0\u5f55\u548c\u5199\u5165\u6570\u636e\u8bb0\u5f55\u6307\u4ee4\u4e3a\u5f02\u6b65\u8bfb\u5199\u6307\u4ee4\uff0c\u6307\u4ee4\u7684\u6267\u884c\u9700\u8981N\u4e2a\u626b\u63cf\u5468\u671f\uff0c\u6240\u4ee5\u4e0d\u5efa\u8baeModbus_Comm_Load\u6307\u4ee4\u5728\u542f\u52a8\u7ec4\u7ec7\u5757OB100\u4e2d\u8c03\u7528\u3002
\n<\/span>
\n<\/span>4. \u5982\u4f55\u67e5\u8be2Modbus RTU\u901a\u4fe1\u9519\u8bef\u65f6\u7684\u9519\u8bef\u4ee3\u7801? \u4ee5Modbus_Master\u6307\u4ee4\u4e3a\u4f8b,\u5f53\u901a\u4fe1\u51fa\u73b0\u9519\u8bef\u65f6,Modbus_Master\u6307\u4ee4\u7684\u201cERROR\u201d\u8f93\u51fa\u4f4d\u5c06\u53d8\u4e3aTRUE\u4f46\u662f\u53ea\u4fdd\u6301\u4e00\u4e2a\u626b\u63cf\u5468\u671f\uff0c\u6240\u4ee5\u901a\u8fc7TIA \u8f6f\u4ef6\u7a0b\u5e8f\u76d1\u63a7\u65f6\u65e0\u6cd5\u67e5\u8be2\u5230\u9519\u8bef\u3002 Modbus_Master\u6307\u4ee4\u201cSTATUS\u201d\u53c2\u6570\u4e2d\u7684\u9519\u8bef\u4ee3\u7801\u4ec5\u5728\u201cERROR\u201d = TRUE \u7684\u626b\u63cf\u5468\u671f\u5185\u6709\u6548\uff0c\u4e3a\u4e86\u83b7\u53d6\u4e86Modbus RTU\u901a\u4fe1\u9519\u8bef\u7684\u9519\u8bef\u4ee3\u7801\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u4e0b\u56fe19. \u65b9\u5f0f\u7f16\u7a0b\u3002
\n<\/span><\/p>\n

\n
\n
<\/div>\n<\/div>\n<\/div>\n


\n<\/span>\u56fe19. \u83b7\u53d6\u901a\u8baf\u9519\u8bef\u4ee3\u7801STATUS<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n<\/span>","protected":false},"excerpt":{"rendered":"

Modbus\u5177\u6709\u4e24\u79cd\u4e32\u884c\u4f20\u8f93\u6a21\u5f0f\uff1a\u5206\u522b\u4e3aASCII\u548cRTU\u3002…<\/p>","protected":false},"author":1,"featured_media":24321,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1135,3096],"tags":[1715,1239,281],"class_list":["post-24320","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-iot","category-hardware-manuals","tag-1715","tag-1239","tag-281"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/24320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=24320"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/24320\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/24321"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=24320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=24320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=24320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}