{"id":10458,"date":"2022-07-28T23:54:53","date_gmt":"2022-07-28T15:54:53","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=10458"},"modified":"2026-06-30T23:50:36","modified_gmt":"2026-06-30T15:50:36","slug":"tai-da-plc-jin-xing-modbus-tong-xun-xie-yi-shuo-ming","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/10458.html","title":{"rendered":"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e"},"content":{"rendered":"

\u901a\u8baf\u53e3<\/p>\n\n\n\n

ES2\/EX2\/SA2\/SX2 \u7cfb\u5217\u4e3b\u673a\u6700\u591a\u6709 3 \u4e2a\u901a\u8baf\u53e3(COM1~COM3), SS2 \u7cfb\u5217\u4e3b\u673a\u6709 2 \u4e2a\u901a\u8baf\u53e3(COM1, COM2)\u3002\u652f\u6301\u53f0\u8fbe\u4eba\u673a\u754c\u9762(HMI) \u201cDELTA Q-link\u201d \u901a\u8baf\u683c\u5f0f, \u53ef\u52a0\u5feb HMI \u753b\u9762\u66f4\u65b0\u901f\u5ea6\u3002<\/p>\n\n\n\n

COM<\/strong>1<\/strong> : RS-232 \u901a\u8baf\u53e3,\u53ef\u505a\u4e3b\u7ad9\u6216\u4ece\u7ad9\u3002\u4e3a\u4e3b\u8981\u7684\u7a0b\u5e8f\u7f16\u8f91\u901a\u8baf\u53e3\u3002<\/p>\n\n\n\n

COM<\/strong>2<\/strong> :  RS-485 \u901a\u8baf\u53e3, \u53ef\u505a\u4e3b\u7ad9\u6216\u4ece\u7ad9\u3002<\/p>\n\n\n\n

ES<\/strong>2\/<\/strong>EX<\/strong>2\/<\/strong>SA2<\/strong> COM3<\/strong> :  RS-485 \u901a\u8baf\u53e3,\u53ef\u505a\u4e3b\u7ad9\u6216\u4ece\u7ad9\u3002<\/p>\n\n\n\n

SX<\/strong>2<\/strong> COM<\/strong>3:<\/strong> USB \u901a\u8baf\u53e3, \u53ef\u505a\u4ece\u7ad9\u3002<\/p>\n\n\n\n

COM1~COM3 \u901a\u8baf\u53e3\u53ef\u7528\u4e8e Modbus ASCII \u6216 RTU \u6a21\u5f0f\u901a\u8baf.<\/p>\n\n\n\n

\u901a\u8baf\u7ed3\u6784:<\/p>\n\n\n\n

\u901a\u8baf\u53e3\u901a\u8baf\u53c2\u6570<\/td>RS-232(COM1)<\/td>RS-485(COM2)<\/td>RS-485(COM3)<\/td>USB(COM3)<\/td><\/tr>
\u6ce2\u7279\u7387<\/td>110~115200 bps<\/td>110~921,000 bps<\/td>110~115200 bps<\/td><\/tr>
\u6570\u636e\u4f4d\u957f\u5ea6<\/td>7~8 \u4f4d<\/td><\/tr>
\u5947\u5076\u6821\u9a8c\u4f4d<\/td>\u5947\u6821\u9a8c\/\u5076\u6821\u9a8c\/\u65e0\u6821\u9a8c<\/td><\/tr>
\u505c\u6b62\u6570\u636e\u4f4d\u957f\u5ea6<\/td>1~2 \u6570\u636e\u4f4d<\/td><\/tr>
\u901a\u8baf\u53c2\u6570\u8bbe\u7f6e\u5bc4\u5b58\u5668<\/td>D1036<\/td>D1120<\/td>D1109<\/td><\/tr>
\u901a\u8baf\u683c\u5f0f\u4fdd\u6301<\/td>M1138<\/td>M1120<\/td>M1136<\/td><\/tr>
ASCII \u6a21\u5f0f<\/td>\u4e3b\u7ad9\/\u4ece\u7ad9\u90fd\u6709\u6548<\/td>\u4ece\u7ad9\u6709\u6548<\/td><\/tr>
RTU\u00a0\u6a21\u5f0f<\/td>\u4e3b\u7ad9\/\u4ece\u7ad9\u90fd\u6709\u6548<\/td>\u4ece\u7ad9\u6709\u6548<\/td><\/tr>
ASCII\u00a0\/RTU\u00a0\u6a21\u5f0f\u5207\u6362<\/td>M1139<\/td>M1143<\/td>M1320<\/td><\/tr>
\u4ece\u7ad9\u901a\u8baf\u5730\u5740\u8bbe\u5b9a\u7f13\u5b58\u5668<\/td>D1121<\/td>D1255<\/td><\/tr>
\u8bfb\u5199\u6570\u636e\u957f\u5ea6 (ASCII\u00a0\u6a21\u5f0f)<\/td>100 \u4e2a\u5bc4\u5b58\u5668<\/td><\/tr>
\u8bfb\u5199\u6570\u636e\u957f\u5ea6 (RTU \u6a21\u5f0f)<\/td>100 \u4e2a\u5bc4\u5b58\u5668<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u901a\u8baf\u53e3\u7684\u9ed8\u8ba4\u901a\u8baf\u683c\u5f0f<\/p>\n\n\n\n

L     Modbus ASCII \u6a21\u5f0f<\/p>\n\n\n\n

L     7 \u4e2a\u6570\u636e\u4f4d<\/p>\n\n\n\n

L     1 \u4e2a\u505c\u6b62\u4f4d<\/p>\n\n\n\n

L     \u5947\u6821\u9a8c\u4f4d (EVEN)<\/p>\n\n\n\n

L     9600bps \u6ce2\u7279\u7387<\/p>\n\n\n\n

4<\/strong>.2<\/strong>    ASCII<\/strong> \u6a21\u5f0f\u901a\u8baf\u534f\u8bae<\/p>\n\n\n\n

\u901a\u8baf\u6570\u636e\u7ed3\u6784<\/p>\n\n\n\n

9600 (\u6ce2\u7279\u7387), 7 (\u6570\u636e\u4f4d), Even (\u5947\u5076\u6821\u9a8c\u4f4d) 1 (\u8d77\u59cb\u4f4d), 1 (\u505c\u6b62\u4f4d)<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>\u7ec4\u6210<\/td>\u8bf4\u660e<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>STX<\/td>\u8d77\u59cb\u5b57\u7b26\u4e3a:\u2019,\u5192\u53f7\u7684 ASCII \u7801\u4e3a 3AH<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>ADR 1<\/td>\u901a\u8baf\u5730\u5740\u7531\u4e24\u4e2a ASCII \u7801\u7ec4\u6210<\/td><\/tr>
ADR 0<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>CMD 1<\/td>\u547d\u4ee4\u7801\u7531\u4e24\u4e2a ASCII \u7801\u7ec4\u6210<\/td><\/tr>
CMD 0<\/td><\/tr>
  \u6570\u636e<\/td>DATA (0)<\/td>  \u6570\u636e\u5185\u5bb9\u7531 2n \u4e2a ASCII \u7801\u7ec4\u6210, ns205\u3002<\/td><\/tr>
DATA (1)<\/td><\/tr>
\u2026\u2026\u2026 .<\/td><\/tr>
DATA (n-1)<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>LRC CHK 1<\/td>LRC \u6821\u9a8c\u7801\u7531 2 \u4e2a ASCII \u7801\u7ec4\u6210<\/td><\/tr>
LRC CHK 0<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>END1<\/td>\u7ed3\u675f\u5b57\u7b26\u7531 2 \u4e2a ASCII \u7801\u7ec4\u6210END1 = CR (0DH) ,END0 = LF (0AH)<\/td><\/tr>
END0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

16 \u8fdb\u5236\u4e0e ASCII \u7801\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b\u8868\u6240\u793a:<\/p>\n\n\n\n

ASCII \u7801<\/td>\u201c0\u201c<\/td>\u201c1\u201c<\/td>\u201c2\u201c<\/td>\u201c3\u201c<\/td>\u201c4\u201c<\/td>\u201c5\u201c<\/td>\u201c6\u201c<\/td>\u201c7\u201c<\/td><\/tr>
16 \u8fdb\u5236<\/td>30H<\/td>31H<\/td>32H<\/td>33H<\/td>34H<\/td>35H<\/td>36H<\/td>37H<\/td><\/tr>
ASCII \u7801<\/td>\u201c8\u201c<\/td>\u201c9\u201c<\/td>\u201cA\u201c<\/td>\u201cB\u201c<\/td>\u201cC\u201c<\/td>\u201cD\u201c<\/td>\u201cE\u201c<\/td>\u201cF\u201c<\/td><\/tr>
16 \u8fdb\u5236<\/td>38H<\/td>39H<\/td>41H<\/td>42H<\/td>43H<\/td>44H<\/td>45H<\/td>46H<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.2.<\/strong>1<\/strong>  ADR<\/strong> (<\/strong>\u901a\u8baf\u5730\u5740)<\/strong><\/p>\n\n\n\n

\u6709\u6548\u7684\u901a\u8baf\u5730\u5740\u8303\u56f4\u4e3a 0~254\u3002\u5f53\u901a\u8baf\u5730\u5740\u4e3a 0 \u65f6\u8868\u793a\u5bf9\u6240\u6709 PLC \u5e7f\u64ad, \u6536\u5230\u5e7f\u64ad\u6d88\u606f\u7684 PLC \u4e0d\u4f1a \u5bf9\u5e7f\u64ad\u6d88\u606f\u505a\u56de\u5e94\u3002\u5f53 PLC \u5730\u5740\u4e0d\u4e3a 0 \u65f6, PLC \u4f1a\u56de\u5e94\u6b63\u5e38\u8baf\u606f\u7ed9\u4e3b\u7ad9\u8bbe\u5907\u3002<\/p>\n\n\n\n

\u4f8b\u5982,\u901a\u8baf\u5730\u5740\u4e3a 16  (\u5341\u8fdb\u5236) \u7684 PLC \u7684\u5730\u5740\u7684 ASCII \u7801\u8868\u793a\u65b9\u6cd5\u5982\u4e0b\u6240\u793a(\u5341\u8fdb\u5236\u6570 16 \u7684\u5341\u516d \u8fdb\u5236\u4e3a 10)\u3002<\/p>\n\n\n\n

(ADR 1, ADR 0)=\u20191\u2019,\u20190\u2019s\u20191\u2019=31H, \u20180\u2019 = 30H<\/p>\n\n\n\n

4.2.2<\/strong>  \u547d\u4ee4\u7801\u53ca\u6570\u636e<\/p>\n\n\n\n

\u6570\u636e\u5b57\u7b26\u7684\u683c\u5f0f\u53d6\u51b3\u4e8e\u547d\u4ee4\u7801,\u6709\u6548\u7684\u547d\u4ee4\u7801\u7684\u63cf\u8ff0\u5982\u4e0b\u8868\u6240\u793a:<\/p>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe\"\u547d\u4ee4\u7801(Hex)<\/strong><\/td>\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe1\"\u542b\u4e49<\/td>\u53ef\u64cd\u4f5c\u88c5\u7f6e<\/td><\/tr>
01 (01 H)<\/td>\u8bfb\u8282\u70b9\u72b6\u6001(\u4e0d\u53ef\u8bfb\u8f93\u5165\u8282\u70b9\u72b6\u6001)<\/td>S, Y, M, T, C<\/td><\/tr>
02 (02 H)<\/td>\u8bfb\u8282\u70b9\u72b6\u6001(\u53ef\u8bfb\u8f93\u5165\u8282\u70b9\u72b6\u6001)<\/td>S, X, Y, M,T, C<\/td><\/tr>
03 (03 H)<\/td>\u8bfb\u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u503c<\/td>T, C, D<\/td><\/tr>
05 (04 H)<\/td>\u5f3a\u5236\u5355\u72ec\u8282\u70b9\u72b6\u6001 On\/Off<\/td>S, Y, M, T, C<\/td><\/tr>
06 (06 H)<\/td>\u9884\u8bbe\u5355\u72ec\u5bc4\u5b58\u5668\u7684\u503c<\/td>T, C, D<\/td><\/tr>
15 (0F H)<\/td>\u5f3a\u5236\u591a\u4e2a\u8282\u70b9\u72b6\u6001 On\/Off<\/td>S, Y, M, T, C<\/td><\/tr>
16 (10 H)<\/td>\u9884\u8bbe\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c<\/td>T, C, D<\/td><\/tr>
17 (11 H)<\/td>\u62a5\u544a\u4ece\u7ad9\u5730\u5740<\/td>None<\/td><\/tr>
23 (17 H)<\/td>PLC LINK \u5728\u4e00\u4e2a\u8f6e\u8be2\u65f6\u95f4\u5185\u540c\u65f6 \u6267\u884c\u8bfb\u5199\u529f\u80fd<\/td>None<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4f8b\u5982: \u8bfb\u53d6 PLC \u901a\u8baf\u5730\u5740 01, \u5730\u5740 H0614~H61B (\u5bc4\u5b58\u5668 T20~T27)  \u7684\u8fde\u7eed 8 \u4e2a\u5b57\u7b26\u7ec4\u7684\u6570\u636e\u30020614 (\u5341\u516d\u8fdb\u5236) \u4e3a PLC \u5185\u90e8 T20 \u7684\u5730\u5740\u3002<\/p>\n\n\n\n

PC\u4e00PLC:<\/p>\n\n\n\n

\u201c: 01 03 06 14 00 08 DA CR LF\u201d<\/p>\n\n\n\n

\u8bf7\u6c42\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td>1<\/strong>6<\/strong> \u8fdb\u5236<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td>3A<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td>30 31<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td>30 33<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td>30 36<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>14<\/td>31 34<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u9ad8\u5b57\u8282<\/td>00<\/td>30 30<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u4f4e\u5b57\u8282<\/td>08<\/td>30 38<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>DA<\/td>44 41<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>CR LF<\/td>0D 0A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC<\/p>\n\n\n\n

\u201c: 01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 C8 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td>1<\/strong>6<\/strong>\u00a0\u8fdb\u5236<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td>3A<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td>30 31<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td>30 33<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td>1<\/strong>6<\/strong> \u8fdb\u5236<\/td><\/tr>
\u5b57\u8282\u6570<\/td>10<\/td>31 30<\/td><\/tr>
\u9ad8\u5b57\u8282(T20)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T20)<\/td>01<\/td>30 31<\/td><\/tr>
\u9ad8\u5b57\u8282(T21)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T21)<\/td>02<\/td>30 32<\/td><\/tr>
\u9ad8\u5b57\u8282(T22)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T22)<\/td>03<\/td>30 33<\/td><\/tr>
\u9ad8\u5b57\u8282(T23)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T23)<\/td>04<\/td>30 34<\/td><\/tr>
\u9ad8\u5b57\u8282(T24)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T24)<\/td>05<\/td>30 35<\/td><\/tr>
\u9ad8\u5b57\u8282(T25)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T25)<\/td>06<\/td>30 36<\/td><\/tr>
\u9ad8\u5b57\u8282(T26)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T26)<\/td>07<\/td>30 37<\/td><\/tr>
\u9ad8\u5b57\u8282(T27)<\/td>00<\/td>30 30<\/td><\/tr>
\u4f4e\u5b57\u8282(T27)<\/td>08<\/td>30 38<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>C8<\/td>43 38<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>CR LF<\/td>0D 0A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.2.3<\/strong>   LR<\/strong>C<\/strong>\u6821\u9a8c (<\/strong>\u6821\u9a8c\u548c)<\/strong><\/p>\n\n\n\n

LRC \u6821\u9a8c\u7801\u4e3a\u4ece\u7ad9\u5730\u5740\u81f3\u6700\u540e\u4e00\u4e2a\u6570\u636e\u5185\u5bb9\u7684 16 \u8fdb\u5236\u6570\u53e0\u52a0\u540e\u7684\u503c\u7684\u5404\u4f4d\u53d6\u53cd\u540e\u518d\u52a0 1 \u7684\u503c\u3002\u5982\u4e0b \u4f8b\u6240\u793a,LRC \u6821\u9a8c\u7801\u7684\u503c\u4e3a F6(16 \u8fdb\u5236)\u3002LRC \u6821\u9a8c\u7801\u7684\u8ba1\u7b97\u65b9\u6cd5\u5982\u4e0b:01H+03H+04H+01H+00+01H = 0AH, 0A  (16 \u8fdb\u5236)\u5404\u4f4d\u53d6\u53cd\u540e\u7684\u7ed3\u679c\u518d\u52a0 1 \u4e3a F6  (16 \u8fdb\u5236)\u3002<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td>1<\/strong>6<\/strong> \u8fdb\u5236<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td>3A<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>0<\/strong>1<\/strong><\/td>30 31<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>0<\/strong>3<\/strong><\/td>30 33<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>0<\/strong>4<\/strong><\/td>30 34<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>0<\/strong>1<\/strong><\/td>30 31<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u9ad8\u5b57\u8282<\/td>0<\/strong>0<\/strong><\/td>30 30<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u4f4e\u5b57\u8282<\/td>0<\/strong>1<\/strong><\/td>30 31<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>F6<\/td>46 36<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>CR LF<\/td>0D 0A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5f02\u5e38\u54cd\u5e94:<\/p>\n\n\n\n

\u4ece\u7ad9\u5728\u6536\u5230\u4e3b\u7ad9\u7684\u547d\u4ee4\u8baf\u606f\u540e\u671f\u671b\u56de\u5e94\u7ed9\u4e3b\u7ad9\u4e00\u4e2a\u6b63\u5e38\u7684\u56de\u5e94\u8baf\u606f, \u4f46\u6709\u65f6 PLC \u5728\u6536\u5230\u4e3b\u7ad9\u7684\u547d\u4ee4 \u8baf\u606f\u540e\u4e0d\u56de\u5e94\u6216\u8005\u56de\u5e94\u9519\u8bef\u539f\u56e0,\u4e0b\u9762\u5c06\u63cf\u8ff0 PLC \u6ca1\u6709\u7ed9\u4e3b\u7ad9\u8bbe\u5907\u56de\u5e94\u6216\u56de\u5e94\u9519\u8bef\u539f\u56e0\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n

1.  \u7531\u4e8e\u901a\u8baf\u9519\u8bef, PLC \u6ca1\u6709\u6536\u5230\u6b63\u786e\u7684\u547d\u4ee4\u8baf\u606f: \u56e0\u6b64\u5f53 PLC \u6ca1\u6709\u56de\u5e94\u8baf\u606f\u65f6,\u4e3b\u7ad9\u8bbe\u5907\u987b\u8bbe\u7f6e\u4e00 \u4e2a\u901a\u8baf\u8d85\u65f6\u6761\u4ef6\u3002<\/p>\n\n\n\n

2. \u6ca1\u6709\u901a\u8baf\u9519\u8bef\u53d1\u751f\u65f6, PLC \u63a5\u6536\u5230\u4e00\u4e2a\u6709\u6548\u7684\u901a\u8baf\u8baf\u606f, \u4f46 PLC \u4e0d\u80fd\u7406\u89e3\u6b64\u8baf\u606f\u7684\u610f\u601d, \u6240\u4ee5 PLC \u4f1a\u7ed9\u4e3b\u7ad9\u505a\u5f02\u5e38\u56de\u5e94\u3002\u56de\u5e94\u8baf\u606f\u7684\u547d\u4ee4\u7801\u7684\u6700\u9ad8\u4f4d\u4f1a\u7f6e\u4f4d\u4e3a 1 \u5e76\u4e14\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5f02\u5e38\u7801\u8bf4\u660e\u9020\u6210\u5f02\u5e38\u56de \u5e94\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n

\u547d\u4ee4\u7801\u4e3a 01H \u65f6\u7684\u5f02\u5e38\u54cd\u5e94\u8303\u4f8b, \u5f02\u5e38\u54cd\u5e94\u7801\u4e3a 02H<\/p>\n\n\n\n

\u8bf7\u6c42\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong>\u00a0\u7801<\/td>\u5341\u516d\u8fdb\u5236<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td>3A<\/td><\/tr>
30 31<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>01<\/td>30 31<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>04<\/td>30 34<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td>30 30<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u9ad8\u5b57\u8282 (\u5355\u4f4d:\u4f4d)<\/td>00<\/td>30 30<\/td><\/tr>
\u63a5\u70b9\u4e2a\u6570\u4f4e\u5b57\u8282 (\u5355\u4f4d:\u4f4d)<\/td>10<\/td>31 30<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>EA<\/td>45 41<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>CR LF<\/td>0D 0A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u56de\u5e94\u8baf\u606f<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td>\u5341\u516d\u8fdb\u5236<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td>3A<\/td><\/tr>
30 31<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>81<\/td>38 31<\/td><\/tr>
30 32<\/td><\/tr>
\u5f02\u5e38\u7801<\/td>02<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>7C<\/td>37 43<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26<\/td>CR LF<\/td>0D 0A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5f02\u5e38\u7801<\/td>\u542b\u4e49<\/td><\/tr>
01<\/td>\u975e\u6cd5\u547d\u4ee4\u7801: PLC \u63a5\u6536\u7684\u547d\u4ee4\u4fe1\u606f\u4e2d\u7684\u547d\u4ee4\u7801\u65e0\u6548<\/td><\/tr>
02<\/td>\u975e\u6cd5\u7684\u88c5\u7f6e\u5730\u5740:\u63a5\u6536\u7684\u547d\u4ee4\u4fe1\u606f\u4e2d\u7684\u5730\u5740\u65e0\u6548\u3002<\/td><\/tr>
03<\/td>\u975e\u6cd5\u88c5\u7f6e\u503c: PLC \u63a5\u6536\u7684\u547d\u4ee4\u4fe1\u606f\u4e2d\u7684\u6570\u636e\u5185\u5bb9\u65e0\u6548\u3002<\/td><\/tr>
07<\/td>1.    \u6821\u9a8c\u548c\u9519\u8bef\u25cf     \u68c0\u67e5\u6821\u9a8c\u548c\u662f\u5426\u6b63\u786e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5f02\u5e38\u7801<\/td>\u542b\u4e49<\/td><\/tr>
 <\/td>2.    \u975e\u6cd5\u7684\u547d\u4ee4\u8baf\u606f\u25cf     \u547d\u4ee4\u8baf\u606f\u592a\u77ed\u25cf     \u547d\u4ee4\u8baf\u606f\u957f\u5ea6\u8d85\u51fa\u8303\u56f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.3<\/strong>      RTU<\/strong>  \u6a21\u5f0f\u901a\u8baf\u534f\u8bae<\/p>\n\n\n\n

\u901a\u8baf\u6570\u636e\u7ed3\u6784<\/p>\n\n\n\n

9600 (\u6ce2\u7279\u7387), 8 (\u6570\u636e\u4f4d), Even (\u5947\u5076\u6821\u9a8c\u4f4d) 1 (\u8d77\u59cb\u4f4d), 1 (\u505c\u6b62\u4f4d)<\/p>\n\n\n\n

\u5f00\u59cb<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>\u4ece\u7ad9\u5730\u5740:: 8 \u4f4d\u4e8c\u8fdb\u5236\u6570\u5730\u5740<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>\u547d\u4ee4\u7801:: 8 \u4f4d\u4e8c\u8fdb\u5236\u6570\u5730\u5740<\/td><\/tr>
\u6570\u636e (n-1)<\/td>\u6570\u636e\u5185\u5bb9n  \u00d7 8 \u4f4d\u4e8c\u8fdb\u5236\u6570, n<=202<\/td><\/tr>
\u2026\u2026 .<\/td><\/tr>
\u6570\u636e 0<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u4f4e\u5b57\u8282<\/td>CRC \u6821\u9a8c\u548cCRC \u6821\u9a8c\u548c\u7531\u4e24\u4e2a 8 \u4f4d\u4e8c\u8fdb\u5236\u6570\u7ec4\u6210<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u9ad8\u5b57\u8282<\/td><\/tr>
\u7ed3\u675f<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.3<\/strong>.1<\/strong>  \u5730\u5740 (<\/strong>\u901a\u8baf\u5730\u5740)<\/strong><\/p>\n\n\n\n

\u6709\u6548\u7684\u901a\u8baf\u5730\u5740\u8303\u56f4\u4e3a 0~254\u3002\u5f53\u901a\u8baf\u5730\u5740\u4e3a 0 \u65f6\u8868\u793a\u5bf9\u6240\u6709 PLC \u5e7f\u64ad, \u6536\u5230\u5e7f\u64ad\u6d88\u606f\u7684 PLC \u4e0d\u4f1a \u5bf9\u5e7f\u64ad\u6d88\u606f\u505a\u56de\u5e94\u3002\u5f53 PLC \u5730\u5740\u4e0d\u4e3a 0 \u65f6, PLC \u4f1a\u56de\u5e94\u6b63\u5e38\u6d88\u606f\u7ed9\u4e3b\u7ad9\u8bbe\u5907\u3002<\/p>\n\n\n\n

\u4f8b\u5982, \u5f53\u548c\u901a\u8baf\u5730\u5740\u4e3a 16 (\u5341\u8fdb\u5236) \u7684 PLC \u8fdb\u884c\u901a\u8baf\u65f6, \u4ece\u7ad9\u5730\u5740\u987b\u8bbe\u4e3a 10 (16 \u8fdb\u5236), \u5341\u8fdb\u5236\u6570 16 \u7684\u5341\u516d\u8fdb\u5236\u4e3a 10)\u3002<\/p>\n\n\n\n

4.3.2<\/strong>  \u547d\u4ee4\u7801\u53ca\u6570\u636e<\/p>\n\n\n\n

\u6570\u636e\u5b57\u7b26\u7684\u683c\u5f0f\u53d6\u51b3\u4e8e\u547d\u4ee4\u7801, \u6709\u6548\u7684\u529f\u80fd\u7801\u7684\u63cf\u8ff0\u8bf7\u53c2\u8003 4.2.2 \u8282\u3002<\/p>\n\n\n\n

\u8303\u4f8b: \u8bfb\u53d6 PLC \u7ad9\u53f7 01, \u5730\u5740 H0614~H61B (T20~T27)\u7684\u8fde\u7eed 8 \u4e2a\u5b57\u7b26\u7ec4\u7684\u6570\u636e\u3002\u8bfb\u53d6\u4ece\u7ad9\u8bbe\u5907 (\u901a \u8baf\u5730\u5740\u4e3a 1)\u7684\u503c\u3002<\/p>\n\n\n\n

PC\u4e00PLC<\/p>\n\n\n\n

\u201c 01 03 06 14 00 08 04 80\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>\u6570\u636e (16<\/strong> \u8fdb\u5236)<\/strong><\/td><\/tr>
\u5f00\u59cb<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td><\/tr>
\u6570\u636e\u8d77\u59cb\u5730\u5740<\/td>06<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5b57\u6bb5\u540d<\/td>\u6570\u636e (16<\/strong> \u8fdb\u5236)<\/strong><\/td><\/tr>
 <\/td>14<\/td><\/tr>
\u6570\u636e\u4e2a\u6570(\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d)<\/td>00<\/td><\/tr>
08<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u4f4e\u5b57\u8282<\/td>04<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u9ad8\u5b57\u8282<\/td>80<\/td><\/tr>
\u7ed3\u675f<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC<\/p>\n\n\n\n

\u201c 01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 72 98\u201d<\/p>\n\n\n\n

\u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>\u6570\u636e (16<\/strong> \u8fdb\u5236)<\/strong><\/td><\/tr>
\u5f00\u59cb<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td><\/tr>
\u6570\u636e\u4e2a\u6570(\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d)<\/td>10<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T20)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T20)<\/td>01<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T21)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T21)<\/td>02<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T22)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T22)<\/td>03<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T23)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T23)<\/td>04<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T24)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T24)<\/td>05<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T25)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T25)<\/td>06<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T26)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T26)<\/td>07<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T27)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T27)<\/td>08<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u4f4e\u5b57\u8282<\/td>72<\/td><\/tr>
CRC \u6821\u9a8c\u548c\u9ad8\u5b57\u8282<\/td>98<\/td><\/tr>
\u7ed3\u675f<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4<\/strong>.3.3<\/strong>  CRC<\/strong> \u6821\u9a8c (<\/strong>\u6821\u9a8c\u548c)<\/strong><\/p>\n\n\n\n

CRC \u6821\u9a8c\u4ece”\u4ece\u7ad9\u5730\u5740” \u5f00\u59cb,\u81f3”\u6700\u540e\u4e00\u4e2a\u6570\u636e\u5185\u5bb9”\u7ed3\u675f\u3002CRC \u6821\u9a8c\u8ba1\u7b97\u65b9\u6cd5\u5982\u4e0b: \u6b65\u9aa4 1<\/strong> : \u8f7d\u5165\u4e00\u4e2a\u5185\u5bb9\u503c\u4e3a FFFF  (\u5341\u516d\u8fdb\u5236) \u7684 16 \u4f4d\u5bc4\u5b58\u5668(\u79f0\u4e3a CRC \u5bc4\u5b58\u5668)\u3002<\/p>\n\n\n\n

\u6b65\u9aa4 2<\/strong> : \u6307\u4ee4\u8baf\u606f\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684 8 \u4f4d\u6570\u636e\u4e0e CRC \u5bc4\u5b58\u5668\u4f4e\u5b57\u8282\u7684 8 \u4f4d\u6570\u636e\u8fdb\u884c\u5f02\u6216\u8fd0\u7b97,\u8fd0\u7b97 \u7ed3\u679c\u5b58\u50a8\u4e8e CRC \u5bc4\u5b58\u5668\u5185\u3002<\/p>\n\n\n\n

\u6b65\u9aa4 3:<\/strong> CRC \u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u503c\u53f3\u79fb 1 \u4f4d\u5e76\u5c06\u5176\u6700\u9ad8\u4f4d\u586b\u5165 0\u3002<\/p>\n\n\n\n

\u6b65\u9aa4 4<\/strong>:  \u68c0\u67e5 CRC \u5bc4\u5b58\u5668\u6700\u4f4e\u4f4d\u7684\u503c,\u5982\u679c\u4e3a 0 \u5219\u91cd\u590d\u6b65\u9aa4 3:\u5982\u679c\u4e3a 1 , CRC \u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u4e0e A001  (\u5341\u516d\u8fdb\u5236)\u8fdb\u884c\u5f02\u6216\u8fd0\u7b97, \u8fd0\u7b97\u7ed3\u679c\u5b58\u50a8\u4e8e CRC \u5bc4\u5b58\u5668\u5185\u3002<\/p>\n\n\n\n

\u6b65\u9aa4 5<\/strong> : \u91cd\u590d\u6b65\u9aa4 3 \u53ca\u6b65\u9aa4 4,\u76f4\u5230CRC \u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u88ab\u53f3\u79fb\u4e868 \u4f4d\u3002\u6b64\u65f6, \u6307\u4ee4\u8baf\u606f\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282 \u5df2\u5b8c\u6210\u5904\u7406\u3002<\/p>\n\n\n\n

\u6b65\u9aa4 6<\/strong> : \u5bf9\u6307\u4ee4\u8baf\u606f\u7684\u4e0b\u4e00\u4e2a\u5b57\u8282\u91cd\u590d\u6b65\u9aa4 2 \u81f3\u6b65\u9aa4 5 \u7684\u64cd\u4f5c, \u76f4\u5230\u6307\u4ee4\u8baf\u606f\u7684\u6240\u6709\u5b57\u8282\u90fd\u88ab\u5904\u7406\u5b8c \u6210\u3002CRC \u5bc4\u5b58\u5668\u6700\u540e\u7684\u5185\u5bb9\u5c31\u662f CRC \u6821\u9a8c\u503c\u3002\u5728\u6307\u4ee4\u8baf\u606f\u4e2d\u4f20\u9001 CRC \u6821\u9a8c\u503c\u65f6, \u8ba1\u7b97\u51fa\u7684 CRC \u6821 \u9a8c\u503c\u9ad8\u4f4e\u5b57\u8282\u987b\u4e92\u6362, \u5373 CRC \u6821\u9a8c\u503c\u4f4e\u5b57\u8282\u5148\u88ab\u4f20\u9001\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u4e3a\u7528 C \u8bed\u8a00\u6c42 CRC \u6821\u9a8c\u503c\u7684\u8ba1\u7b97\u8303\u4f8b<\/p>\n\n\n\n

unsigned char* data     <\/\/ \u6307\u4ee4\u8baf\u606f\u5185\u5bb9\u6307\u9488<\/p>\n\n\n\n

unsigned char length   <\/\/ \u6307\u4ee4\u8baf\u606f\u7684\u957f\u5ea6<\/p>\n\n\n\n

unsigned int crc_chk(unsigned char* data, unsigned char length)<\/p>\n\n\n\n

{<\/p>\n\n\n\n

int j;<\/p>\n\n\n\n

unsigned int reg_crc=0Xffff;<\/p>\n\n\n\n

while(length–)<\/p>\n\n\n\n

{<\/p>\n\n\n\n

reg_crc ^= *data++;<\/p>\n\n\n\n

for (j=0;j<8;j++)<\/p>\n\n\n\n

{<\/p>\n\n\n\n

If (reg_crc & 0x01) reg_crc=(reg_crc>>1) ^ 0Xa001; \/* LSB(b0)=1 *\/<\/p>\n\n\n\n

else reg_crc=reg_crc >>1;<\/p>\n\n\n\n

}<\/p>\n\n\n\n

}<\/p>\n\n\n\n

return reg_crc;       \/\/ the value that sent back to the CRC register finally<\/p>\n\n\n\n

}<\/p>\n\n\n\n

\u5f02\u5e38\u56de\u5e94:<\/p>\n\n\n\n

\u4ece\u7ad9\u5728\u6536\u5230\u4e3b\u7ad9\u7684\u547d\u4ee4\u8baf\u606f\u540e\u671f\u671b\u56de\u5e94\u7ed9\u4e3b\u7ad9\u4e00\u4e2a\u6b63\u5e38\u7684\u56de\u5e94\u8baf\u606f, \u4f46\u6709\u65f6 PLC \u5728\u6536\u5230\u4e3b\u7ad9\u7684\u547d\u4ee4 \u8baf\u606f\u540e\u4e0d\u56de\u5e94\u6216\u8005\u56de\u5e94\u9519\u8bef\u539f\u56e0,\u4e0b\u9762\u5c06\u63cf\u8ff0 PLC \u6ca1\u6709\u7ed9\u4e3b\u7ad9\u8bbe\u5907\u56de\u5e94\u6216\u56de\u5e94\u9519\u8bef\u539f\u56e0\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n

1.  \u7531\u4e8e\u901a\u8baf\u9519\u8bef, PLC \u6ca1\u6709\u6536\u5230\u6b63\u786e\u7684\u547d\u4ee4\u8baf\u606f: \u56e0\u6b64\u5f53 PLC \u6ca1\u6709\u56de\u5e94\u8baf\u606f\u65f6,\u4e3b\u7ad9\u8bbe\u5907\u987b\u8bbe\u7f6e\u4e00 \u4e2a\u901a\u8baf\u8d85\u65f6\u6761\u4ef6\u3002<\/p>\n\n\n\n

2. \u6ca1\u6709\u901a\u8baf\u9519\u8bef\u53d1\u751f\u65f6, PLC \u63a5\u6536\u5230\u4e00\u4e2a\u6709\u6548\u7684\u901a\u8baf\u8baf\u606f, \u4f46 PLC \u4e0d\u80fd\u7406\u89e3\u6b64\u8baf\u606f\u7684\u610f\u601d, \u6240\u4ee5 PLC \u4f1a\u7ed9\u4e3b\u7ad9\u505a\u5f02\u5e38\u56de\u5e94\u3002\u56de\u5e94\u8baf\u606f\u7684\u547d\u4ee4\u7801\u7684\u6700\u9ad8\u4f4d\u4f1a\u7f6e\u4f4d\u4e3a 1 \u5e76\u4e14\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5f02\u5e38\u7801\u8bf4\u660e\u9020\u6210\u5f02\u5e38\u56de \u5e94\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u7684\u4f8b\u5b50\u4e3a\u547d\u4ee4\u7801\u4e3a 01H \u65f6\u7684\u5f02\u5e38\u56de\u5e94\u8303\u4f8b, \u5f02\u5e38\u56de\u5e94\u7801\u4e3a 02H\u3002<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>\u6570\u636e (16<\/strong> \u8fdb\u5236)<\/strong><\/td><\/tr>
\u5f00\u59cb<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>01<\/td><\/tr>
\u6570\u636e\u8d77\u59cb\u5730\u5740<\/td>04<\/td><\/tr>
00<\/td><\/tr>
\u6570\u636e\u4e2a\u6570(\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d)<\/td>00<\/td><\/tr>
10<\/td><\/tr>
CRC \u6821\u9a8c\u7801\u4f4e\u5b57\u8282<\/td>3C<\/td><\/tr>
CRC \u6821\u9a8c\u7801\u9ad8\u5b57\u8282<\/td>F6<\/td><\/tr>
\u7ed3\u675f<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe2\"\u5b57\u6bb5\u540d<\/td>\u6570\u636e(16<\/strong> \u8fdb\u5236)<\/strong><\/td><\/tr>
\u5f00\u59cb<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>81<\/td><\/tr>
\u5f02\u5e38\u7801<\/td>02<\/td><\/tr>
CRC \u6821\u9a8c\u7801\u4f4e\u5b57\u8282<\/td>C1<\/td><\/tr>
CRC \u6821\u9a8c\u9ad8\u5b57\u8282<\/td>91<\/td><\/tr>
\u7ed3\u675f<\/td>\u4fdd\u6301\u65e0\u8f93\u5165\u6570\u636e\u226510 ms<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe3\"PLC<\/strong>\u88c5\u7f6e\u5730\u5740<\/p>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe4\"\u88c5\u7f6e<\/td>\u8303\u56f4<\/td>\u6709\u6548\u8303\u56f4<\/td>M<\/strong>ODBUS<\/strong>\u5730\u5740<\/td>\u88c5\u7f6e\u901a\u8baf\u5730\u5740<\/td><\/tr>
ES<\/strong>2<\/strong>\/EX2<\/strong><\/td>SS2<\/strong><\/td>SA2\/SX2<\/strong><\/td><\/tr>
S<\/td>000~255<\/td> 000~1023<\/td> 000~1023<\/td>000001~000256<\/td>0000~00FF<\/td><\/tr>
S<\/td>256~511<\/td>000257~000512<\/td>0100~01FF<\/td><\/tr>
S<\/td>512~767<\/td>000513~000768<\/td>0200~02FF<\/td><\/tr>
S<\/td>768~1023<\/td>000769~001024<\/td>0300~03FF<\/td><\/tr>
X<\/td>000~377 (Octal)<\/td>000~377<\/td>000~377<\/td>101025~101280<\/td>0400~04FF<\/td><\/tr>
Y<\/td>000~377 (Octal)<\/td>000~377<\/td>000~377<\/td>001281~001536<\/td>0500~05FF<\/td><\/tr>
T<\/td>000~255 bit<\/td>000~255<\/td>000~255<\/td>001537~001792<\/td>0600~06FF<\/td><\/tr>
000~255 word<\/td>000~255<\/td>000~255<\/td>401537~401792<\/td>0600~06FF<\/td><\/tr>
M<\/td>000~255<\/td>         0000~4095<\/td>         0000~4095<\/td>   002049~003584<\/td>0800~08FF<\/td><\/tr>
M<\/td>256~511<\/td>0900~09FF<\/td><\/tr>
M<\/td>512~767<\/td>0A00~0AFF<\/td><\/tr>
M<\/td>768~1023<\/td>0B00~0BFF<\/td><\/tr>
M<\/td>1024~1279<\/td>0C00~0CFF<\/td><\/tr>
M<\/td>1280~1535<\/td>0D00~0DFF<\/td><\/tr>
M<\/td>1536~1791<\/td>     045057~047616<\/td>B000~B0FF<\/td><\/tr>
M<\/td>1792~2047<\/td>B100~B1FF<\/td><\/tr>
M<\/td>2048~2303<\/td>B200~B2FF<\/td><\/tr>
M<\/td>2304~2559<\/td>B300~B3FF<\/td><\/tr>
M<\/td>2560~2815<\/td>B400~B4FF<\/td><\/tr>
M<\/td>2816~3071<\/td>B500~B5FF<\/td><\/tr>
M<\/td>3072~3327<\/td>B600~B6FF<\/td><\/tr>
M<\/td>3328~3583<\/td>B700~B7FF<\/td><\/tr>
M<\/td>3584~3839<\/td>B800~B8FF<\/td><\/tr>
M<\/td>3840~4095<\/td>B900~B9FF<\/td><\/tr>
  C<\/td>000~199 (16-bit)<\/td>000~199<\/td>000~199<\/td>003585~003784<\/td>0E00~0EC7<\/td><\/tr>
000~199<\/td>000~199<\/td>403585~403784<\/td>0E00~0EC7<\/td><\/tr>
 200~255 (32-bit)<\/td>200~255<\/td>200~255<\/td>003785~003840<\/td>0EC8~0EFF<\/td><\/tr>
200~255<\/td>200~255<\/td>401793~401903(\u5947\u6570\u4f4d\u5740\u6709\u6548)<\/td>0700~076F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u88c5\u7f6e<\/td>\u8303\u56f4<\/td>\u6709\u6548\u8303\u56f4<\/td>M<\/strong>ODBUS<\/strong>\u5730\u5740<\/td>\u88c5\u7f6e\u901a\u8baf\u5730\u5740<\/td><\/tr>
ES<\/strong>2<\/strong>\/EX2<\/strong><\/td>SS2<\/strong><\/td>SA2\/SX2<\/strong><\/td><\/tr>
D<\/td>000~255<\/td>                       0000~9999<\/td>          0000~4999<\/td>                       0000~9999<\/td>  404097~405376<\/td>1000~10FF<\/td><\/tr>
D<\/td>256~511<\/td>1100~11FF<\/td><\/tr>
D<\/td>512~767<\/td>1200~12FF<\/td><\/tr>
D<\/td>768~1023<\/td>1300~13FF<\/td><\/tr>
D<\/td>1024~1279<\/td>1400~14FF<\/td><\/tr>
D<\/td>1280~1535<\/td>      405377~408192<\/td>1500~15FF<\/td><\/tr>
D<\/td>1536~1791<\/td>1600~16FF<\/td><\/tr>
D<\/td>1792~2047<\/td>1700~17FF<\/td><\/tr>
D<\/td>2048~2303<\/td>1800~18FF<\/td><\/tr>
D<\/td>2304~2559<\/td>1900~19FF<\/td><\/tr>
D<\/td>2560~2815<\/td>1A00~1AFF<\/td><\/tr>
D<\/td>2816~3071<\/td>1B00~1BFF<\/td><\/tr>
D<\/td>3072~3327<\/td>1C00~1CFF<\/td><\/tr>
D<\/td>3328~3583<\/td>1D00~1DFF<\/td><\/tr>
D<\/td>3584~3839<\/td>1E00~1EFF<\/td><\/tr>
D<\/td>3840~4095<\/td>1F00~1FFF<\/td><\/tr>
D<\/td>4096~4351<\/td>         436865~440960<\/td>9000~90FF<\/td><\/tr>
D<\/td>4352~4607<\/td>9100~91FF<\/td><\/tr>
D<\/td>4608~4863<\/td>9200~92FF<\/td><\/tr>
D<\/td>4864~5119<\/td>9300~93FF<\/td><\/tr>
D<\/td>5120~5375<\/td>           \u65e0<\/td>9400~94FF<\/td><\/tr>
D<\/td>5376~5631<\/td>9500~95FF<\/td><\/tr>
D<\/td>5632~5887<\/td>9600~96FF<\/td><\/tr>
D<\/td>5888~6143<\/td>9700~97FF<\/td><\/tr>
D<\/td>6144~6399<\/td>9800~98FF<\/td><\/tr>
D<\/td>6400~6655<\/td>9900~99FF<\/td><\/tr>
D<\/td>6656~6911<\/td>9A00~9AFF<\/td><\/tr>
D<\/td>6912~7167<\/td>9B00~9BFF<\/td><\/tr>
D<\/td>7168~7423<\/td>9C00~9CFF<\/td><\/tr>
D<\/td>7424~7679<\/td>9D00~9DFF<\/td><\/tr>
D<\/td>7680~7935<\/td>9E00~9EFF<\/td><\/tr>
D<\/td>7936~8191<\/td>9F00~9FFF<\/td><\/tr>
D<\/td>8192~8447<\/td>    440961~442768<\/td>A000~A0FF<\/td><\/tr>
D<\/td>8448~8703<\/td>A100~A1FF<\/td><\/tr>
D<\/td>8704~8959<\/td>A200~A2FF<\/td><\/tr>
D<\/td>8960~9215<\/td>A300~A3FF<\/td><\/tr>
D<\/td>9216~9471<\/td>A400~A4FF<\/td><\/tr>
D<\/td>9472~9727<\/td>A500~A5FF<\/td><\/tr>
D<\/td>9728~9983<\/td>A600~A6FF<\/td><\/tr>
D<\/td>9984~9999<\/td>A700~A70F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.5<\/strong>    \u547d\u4ee4\u7801<\/p>\n\n\n\n

4.5.1<\/strong>  \u547d\u4ee4\u7801: 01,<\/strong> \u8bfb\u8282\u70b9\u72b6\u6001(<\/strong>\u4e0d\u53ef\u8bfb\u8f93\u5165\u70b9\u72b6\u6001)<\/strong><\/p>\n\n\n\n

\u6570\u636e\u4e2a\u6570\u6700\u5927\u503c= 255  (10 \u8fdb\u5236) = FF  (16 \u8fdb\u5236)<\/p>\n\n\n\n

\u8303\u4f8b:\u8bfb\u53d6\u4ece\u7ad9\u8bbe\u5907(\u901a\u8baf\u5730\u5740\u4e3a 1)T20~T56 \u7684\u8282\u70b9\u72b6\u6001\u3002<\/p>\n\n\n\n

PC\u4e00PLC: \u201c:01 01 06 14 00 25 BF CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>01<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>14<\/td><\/tr>
\u8282\u70b9\u72b6\u6001\u4e2a\u6570\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u8282\u70b9\u72b6\u6001\u4e2a\u6570\u4f4e\u5b57\u8282<\/td>25<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>BF<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5047\u8bbe\u8bf7\u6c42\u8baf\u606f\u4e2d\u7684\u8282\u70b9\u72b6\u6001\u4e2a\u6570\u4e3a n  (\u5341\u8fdb\u5236), n\/8 \u7684\u5546\u4e3a M,\u4f59\u6570\u4e3a N.\u3002<\/p>\n\n\n\n

\u5f53 N=0 \u65f6, \u56de\u5e94\u8baf\u606f\u4e2d\u7684\u5b57\u8282\u4e2a\u6570\u4e3a M;\u5f53 N\u22600 \u65f6, \u56de\u5e94\u8baf\u606f\u4e2d\u7684\u5b57\u8282\u4e2a\u6570\u4e3a\u4e3a M+1. PLC\u4e00PC: \u201c:01 01 05 CD 6B B2 0E 1B D6 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>01<\/td><\/tr>
\u5b57\u8282\u4e2a\u6570<\/td>05<\/td><\/tr>
T20~T27 \u8282\u70b9\u72b6\u6001<\/td>CD<\/td><\/tr>
T35~T38 \u8282\u70b9\u72b6\u6001<\/td>6B<\/td><\/tr>
T36~T43 \u8282\u70b9\u72b6\u6001<\/td>B2<\/td><\/tr>
T44~T51 \u8282\u70b9\u72b6\u6001<\/td>0E<\/td><\/tr>
T52~T56 \u8282\u70b9\u72b6\u6001<\/td>1B<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>E6<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.5.2<\/strong>  \u547d\u4ee4\u7801: 02,<\/strong>\u8bfb\u8282\u70b9\u72b6\u6001(<\/strong>\u53ef\u8bfb\u8f93\u5165\u8282\u70b9\u72b6\u6001)<\/strong><\/p>\n\n\n\n

\u8303\u4f8b:\u8bfb\u53d6\u4ece\u7ad9\u8bbe\u5907(\u901a\u8baf\u5730\u5740\u4e3a 1) Y024~Y070 \u7684\u8282\u70b9\u72b6\u6001\u3002<\/p>\n\n\n\n

PC\u4e00PLC \u201c: 01 02 05 14 00 25 BF CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>02<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>05<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>14<\/td><\/tr>
\u6570\u636e\u4e2a\u6570\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u6570\u636e\u4e2a\u6570\u4f4e\u5b57\u8282<\/td>25<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>BF<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5047\u8bbe\u8bf7\u6c42\u8baf\u606f\u4e2d\u7684\u8282\u70b9\u72b6\u6001\u4e2a\u6570\u4e3a n  (\u5341\u8fdb\u5236), n\/8 \u7684\u5546\u4e3a M,\u4f59\u6570\u4e3a N.\u3002<\/p>\n\n\n\n

\u5f53 N=0 \u65f6, \u56de\u5e94\u8baf\u606f\u4e2d\u7684\u5b57\u8282\u4e2a\u6570\u4e3a M;\u5f53 N\u22600 \u65f6, \u56de\u5e94\u8baf\u606f\u4e2d\u7684\u5b57\u8282\u4e2a\u6570\u4e3a\u4e3a M+1. PLC\u4e00PC \u201c: 01 01 05 CD 6B B2 0E 1B E5 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe2\"\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>02<\/td><\/tr>
\u5b57\u8282\u4e2a\u6570<\/td>05<\/td><\/tr>
Y024~Y033 \u8282\u70b9\u72b6\u6001<\/td>CD<\/td><\/tr>
Y034~Y043 \u8282\u70b9\u72b6\u6001<\/td>6B<\/td><\/tr>
Y044~Y053 \u8282\u70b9\u72b6\u6001<\/td>B2<\/td><\/tr>
Y054~Y063 \u8282\u70b9\u72b6\u6001<\/td>0E<\/td><\/tr>
Y064~Y070 \u8282\u70b9\u72b6\u6001<\/td>1B<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>E5<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.5.3<\/strong>  \u547d\u4ee4\u7801: 03<\/strong>,<\/strong>\u8bfb\u51fa\u5bc4\u5b58\u5668\u5185\u5bb9\u503c<\/p>\n\n\n\n

\u547d\u4ee4\u7801 03 \u53ef\u8bfb\u5bc4\u5b58\u5668: T, C, D<\/p>\n\n\n\n

\u8303\u4f8b::\u8bfb\u53d6\u4ece\u7ad9\u5730\u5740\u4e3a 1 \u7684 PLC \u7684 T20~T27 \u7684\u5185\u5bb9\u503c\u3002<\/p>\n\n\n\n

PC\u4e00PLC: \u201c: 01 03 06 14 00 08 DA CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\"\u53f0\u8fbePLC\u8fdb\u884cMODBUS\u901a\u8baf\u534f\u8bae\u8bf4\u660e\u63d2\u56fe2\"\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td><\/tr>
\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>14<\/td><\/tr>
\u8bfb\u53d6\u6570\u636e\u4e2a\u6570\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u8bfb\u53d6\u6570\u636e\u4e2a\u6570\u4f4e\u5b57\u8282(\u6570\u636e\u4e2a\u6570\u4ee5\u5b57\u4e3a\u5355\u4f4d)<\/td>08<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>DA<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC: \u201c:01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 B8 CR LF\u201d \u56de\u5e94\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>3A<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>03<\/td><\/tr>
\u5b57\u8282\u4e2a\u6570<\/td>10<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T20)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T20)<\/td>01<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T21)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T21)<\/td>02<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T22)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T22)<\/td>03<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T23)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T23)<\/td>04<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T24)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T24)<\/td>05<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T25)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T25)<\/td>06<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T26)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T26)<\/td>07<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282 (T27)<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282 (T27)<\/td>08<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>C8<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.5<\/strong>.4<\/strong>  \u547d\u4ee4\u7801: 05,<\/strong> \u5f3a\u5236\u5355\u72ec\u8282\u70b9\u72b6\u6001<\/p>\n\n\n\n

\u547d\u4ee4\u7801\u4e3a 05 \u65f6,\u5f3a\u5236\u6570\u636e FF00  (16 \u8fdb\u5236)\u8868\u793a\u5c06\u8282\u70b9\u5f3a\u5236\u4e3a On;  \u5f3a\u5236\u6570\u636e 0000  (16 \u8fdb\u5236)\u8868\u793a \u5c06\u8282\u70b9\u5f3a\u5236\u4e3a Off\u3002\u5176\u5b83\u7684\u5f3a\u5236\u6570\u636e\u65e0\u6548\u4e14\u4e0d\u4f1a\u5bf9\u5f3a\u5236\u8282\u70b9\u6709\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u8303\u4f8b:\u5f3a\u5236 Y0 \u8282\u70b9\u4e3a On\u3002<\/p>\n\n\n\n

PC\u4e00PLC   \u201c: 01 05 05 00 FF 00 F6 CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong>\u00a0\u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>05<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u9ad8\u5b57\u8282<\/td>05<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u9ad8\u5b57\u8282<\/td>FF<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>F6<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC   \u201c: 01 05 05 00 FF 00 F6 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u4fe1\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>05<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u9ad8\u5b57\u8282<\/td>05<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u9ad8\u5b57\u8282<\/td>FF<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>F6<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.<\/strong>5.5<\/strong>  \u547d\u4ee4\u7801: 06,<\/strong> \u9884\u8bbe\u5355\u72ec\u5bc4\u5b58\u5668\u7684\u503c<\/p>\n\n\n\n

\u8303\u4f8b: :\u8bbe\u7f6e\u5bc4\u5b58\u5668 T0 \u7684\u503c\u4e3a 12 34  (16 \u8fdb\u5236), T0 \u7684\u901a\u8baf\u5730\u5740\u4e3a 0600  (16 \u8fdb\u5236)\u3002 PC\u4e00PLC   \u201c: 01 06 06 00 12 34 AD CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>06<\/td><\/tr>
\u5bc4\u5b58\u5668\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u5bc4\u5b58\u5668\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u9ad8\u5b57\u8282<\/td>12<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u4f4e\u5b57\u8282<\/td>34<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>AD<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC   \u201c: 01 06 06 00 12 34 AD CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u4fe1\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>06<\/td><\/tr>
\u5bc4\u5b58\u5668\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u5bc4\u5b58\u5668\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u9ad8\u5b57\u8282<\/td>12<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u4f4e\u5b57\u8282<\/td>34<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>AD<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.5.6<\/strong>  \u547d\u4ee4\u7801: 15,<\/strong> \u5f3a\u5236\u591a\u4e2a\u8282\u70b9<\/p>\n\n\n\n

\u8282\u70b9\u6570\u76ee\u6700\u5927\u503c = 255<\/p>\n\n\n\n

\u8303\u4f8b:\u8bbe\u7f6e\u8282\u70b9 Y007\u2026Y000 = 1100 1101, Y011\u2026Y010 = 01.<\/p>\n\n\n\n

PC\u4e00PLC: \u201c: 01 0F 05 00 00 0A 02 CD 01 11 CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>3A<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>0F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u9ad8\u5b57\u8282<\/td>05<\/td><\/tr>
\u8282\u70b9\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u8282\u70b9\u6570\u76ee\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u8282\u70b9\u6570\u76ee\u4f4e\u5b57\u8282<\/td>0A<\/td><\/tr>
\u5b57\u8282\u6570\u76ee<\/td>02<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u9ad8\u5b57\u8282<\/td>CD<\/td><\/tr>
\u5f3a\u5236\u6570\u636e\u4f4e\u5b57\u8282<\/td>01<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>11<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC: \u201c: 01 0F 05 00 00 0A E1 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u4fe1\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>0F<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>05<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u9884\u8bbe\u6570\u636e\u503c\u4f4e\u5b57\u8282<\/td>0A<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>E1<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4.<\/strong>5.7<\/strong>  \u547d\u4ee4\u7801: 16,<\/strong> \u9884\u8bbe\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c<\/p>\n\n\n\n

\u8303\u4f8b:\u8bbe\u7f6e T0  \u7684\u503c\u4e3a 000A  (16 \u8fdb\u5236),\u8bbe\u7f6e T1 \u7684\u503c\u4e3a 0102  (16 \u8fdb\u5236)\u3002<\/p>\n\n\n\n

PC\u4e00PLC: \u201c: 01 10 06 00 00 02 04 00 0A 01 02 D6 CR LF\u201d<\/p>\n\n\n\n

\u4f20\u9001\u8baf\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>10<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u5bc4\u5b58\u5668\u6570\u76ee\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u5bc4\u5b58\u5668\u6570\u76ee\u4f4e\u5b57\u8282<\/td>02<\/td><\/tr>
\u6570\u636e\u6570\u76ee(\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d)<\/td>04<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282<\/td>0A<\/td><\/tr>
\u6570\u636e\u9ad8\u5b57\u8282<\/td>01<\/td><\/tr>
\u6570\u636e\u4f4e\u5b57\u8282<\/td>02<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>D6<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PLC\u4e00PC: \u201c: 01 10 06 00 00 02 E7 CR LF\u201d<\/p>\n\n\n\n

\u56de\u5e94\u4fe1\u606f:<\/p>\n\n\n\n

\u5b57\u6bb5\u540d<\/td>ASCII<\/strong> \u7801<\/td><\/tr>
\u8d77\u59cb\u5b57\u7b26<\/td>:<\/td><\/tr>
\u4ece\u7ad9\u5730\u5740<\/td>01<\/td><\/tr>
\u547d\u4ee4\u7801<\/td>10<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u9ad8\u5b57\u8282<\/td>06<\/td><\/tr>
\u8d77\u59cb\u6570\u636e\u5730\u5740\u4f4e\u5b57\u8282<\/td>00<\/td><\/tr>
\u5bc4\u5b58\u5668\u6570\u76ee\u9ad8\u5b57\u8282<\/td>00<\/td><\/tr>
\u5bc4\u5b58\u5668\u6570\u76ee\u4f4e\u5b57\u8282<\/td>02<\/td><\/tr>
LRC \u6821\u9a8c\u7801<\/td>E7<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 1<\/td>0D (Hex)<\/td><\/tr>
\u7ed3\u675f\u5b57\u7b26 0<\/td>0A (Hex)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/span>","protected":false},"excerpt":{"rendered":"

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