【導讀】字路口的車流量進行檢查，根據(jù)車的流量的變化來改變交通燈紅綠燈的時間。關鍵詞：西門子S7-200，交通燈，PLC，MCGS。

　　

【正文】 47 AENO SEG VB347, VB422 LD = MOVW VW10, VW350 AENO DIV 10, VD348 AENO MOVW VW350, VW354 AENO DIV 10, VD352 AENO LPS MOVW VW352, VW356 AENO IBCD VW356 AENO ITB VW356, VB357 AENO SEG VB357, VB430 LPP MOVW VW354, VW348 AENO IBCD VW348 AENO ITB VW358, VB359 AENO SEG VB359, VB432 LD = MOVW VW14, VW362 AENO DIV 10, VD360 AENO MOVW VW362, VW366 AENO DIV 10, VD364 AENO LPS MOVW VW364, VW368 AENO IBCD VW368 AENO ITB VW368, VB369 AENO SEG VB369, VB430 LPP MOVW VW366, VW370 AENO IBCD VW370 AENO ITB VW370, VB371 AENO SEG VB371, VB432 LD = MOVW VW16, VW374 AENO DIV 10, VD372 畢業(yè)設計論文 基于 PLC 的十字路口交通燈監(jiān)控系統(tǒng)設計 31 AENO MOVW VW374, VW378 AENO DIV 10, VD376 AENO LPS MOVW VW376, VW380 AENO IBCD VW380 AENO ITB VW380, VB381 AENO SEG VB381, VB430 LPP MOVW VW378, VW382 AENO IBCD VW382 AENO ITB VW382, VB383 AENO SEG VB383, VB432 LD = MOVW VW18, VW386 AENO DIV 10, VD384 AENO MOVW VW386, VW390 AENO DIV 10, VD388 AENO LPS MOVW VW388, VW392 AENO IBCD VW392 AENO ITB VW392, VB393 AENO SEG VB393, VB430 LPP MOVW VW390, VW394 AENO IBCD VW394 AENO ITB VW394, VB395 AENO SEG VB395, VB432 自動控制子 程序 LD O AN = LD AN T45 TON T45, 1200 LD T45 LPS MOVW C0, VW20 I C1, VW20 AW= VW20, 5 +I 50, VW0 I 50, VW10 LPP AW= VW20, 5 +I 50, VW10 I 50, VW0 LD T45 LPS MOVW VW0, AC0 AENO +I VW2, AC0 AENO +I VW4, AC0 AENO MOVW AC0, VW16 +I VW8, VW16 LPP MOVW VW10, AC1 AENO +I VW12, AC1 AENO +I VW14, AC1 AENO MOVW AC1, VW6 +I VW18, VW6 LD A LD EU O T45 CTU C0, 30000 LD A LD EU O T45 CTU C1, 30000 LD LPS AN T44 TON T37, VW10 LRD A T37 TON T38, VW12 LRD A T38 TON T39, VW14 LRD A T39 TON T40, VW18 LRD A T40 TON T41, VW0 LRD A T41 TON T42, VW2 LRD A T42 TON T43, VW4 LPP A T43 TON T44, VW8 LD T38 = LD AN T37 附錄 畢業(yè)設計論文 32 LD T37 A AN T38 OLD = LD T38 AN T39 = LD T39 AN T40 = LD T40 AN T44 = LD AN T40 = LD AN T40 O T42 = LD T40 AN T41 LD T41 A AN T42 OLD = LD T42 AN T43 = LD T43 AN T44 = LD AN T37 MOVW VW10, VW1000 AENO I T37, VW1000 AENO MOVW VW1000, VW82 AENO DIV 10, VD80 AENO MOVW VW82, VW30 AENO LD T37 AN T38 MOVW VW12, VW1002 AENO I T38, VW1002 AENO MOVW VW1002, VW86 AENO DIV 10, VD84 AENO MOVW VW86, VW30 AENO OLD LD T38 AN T39 MOVW VW14, VW1004 AENO I T39, VW1004 AENO MOVW VW1004, VW90 AENO DIV 10, VD88 AENO MOVW VW90, VW30 AENO OLD LD T39 AN T40 MOVW VW18, VW1008 AENO I T40, VW1008 AENO MOVW VW1008, VW94 AENO DIV 10, VD92 AENO MOVW VW94, VW30 AENO OLD LD T40 AN T44 MOVW VW16, VW1016 AENO I T41, VW1016 AENO MOVW VW1016, VW94 AENO DIV 10, VD92 AENO MOVW VW94, VW30 AENO OLD MOVW VW30, VW102 AENO DIV 10, VD100 AENO LPS MOVW VW100, VW110 AENO IBCD VW110 AENO SEG VB111, VB120 LPP MOVW VW102, VW112 AENO IBCD VW112 AENO SEG VB113, VB122 LD T40 AN T41 MOVW VW0, VW1016 AENO I T41, VW1016 AENO MOVW VW1016, VW182 AENO DIV 10, VD180 AENO MOVW VW182, VW50 AENO LD T41 AN T42 MOVW VW2, VW1018 AENO I T42, VW1018 AENO 畢業(yè)設計論文 基于 PLC 的十字路口交通燈監(jiān)控系統(tǒng)設計 33 MOVW VW1018, VW186 AENO DIV 10, VD184 AENO MOVW VW186, VW50 AENO OLD LD T42 AN T43 MOVW VW4, VW1020 AENO I T43, VW1020 AENO MOVW VW1020, VW190 AENO DIV 10, VD188 AENO MOVW VW190, VW50 AENO OLD LD T43 AN T44 MOVW VW8, VW1022 AENO I T44, VW1022 AENO MOVW VW1022, VW194 AENO DIV 10, VD192 AENO MOVW VW194, VW50 AENO OLD LD AN T40 MOVW VW6, VW1024 AENO I T37, VW1024 AENO MOVW VW1024, VW194 AENO DIV 10, VD192 AENO MOVW VW194, VW50 AENO OLD MOVW VW50, VW202 AENO DIV 10, VD200 AENO LPS MOVW VW200, VW210 AENO IBCD VW210 AENO SEG VB211, VB220 LPP MOVW VW202, VW212 AENO IBCD VW212 AENO SEG VB213, VB222