PLC控制中央空调程序


      |
   |   |                                 |
   |   |                                 |
   |M103 |                                 |
   +-I I-+                                 +
   |Q3K |                                 |
   |   |                                 |
   |   |                                 |
   |   |                                 |
   |M105 |                                 |
   +-I I-+                                 +
   |Q3K1                                  |
   |                                    |

溶液阀控制
   |                                    |
   |                                    |
   |M53                                M8221 |
 779 +-I I--------------------------------------------------------------( )--+
   |RFG F                                  |
   |                                    |
   |                                    |
   |                                    |
   |M52  M8012 M30                       K6000000  |
 782 +-I I-+-I I---I I--------------------------------------------(C221   )+
   |RFK F|   READY                      RYF     |
   |   |                           TIME    |
   |   |                                 |
   |   |                                 |
   |M53 |                                 |
   +-I I-+                                 +
   |RFG F                                  |
   |                                    |
   |                                    |
   |                                    |
   |M113 M240 M52                          Y2  |
 791 +-I I-+-I I-+-I/I--------------------------------------------------( )--+
   |R1G |RF>0 |RFK F                         RYFG |
   |   |   |                              |
   |   |   |                              |
   |   |   |                              |
   |M115 |   |                              |
   +-I I-+   |                              +
   |RG  |   |                              |
   |   |   |                              |
   |   |   |                              |
   |   |   |                              |
   |M114 |   |                              |
   +-I I-+   |                              +
   |R2G    |                              |
   |      |                              |
   |      |                              |
   |      |                              |
   |M30  M119 |                              |
   +-I/I---I I-+                              +
   |READY RFINI                               |
   |                                    |
   |                                    |
   |                                    |
   |M110 M53  M112 M245 M30  M115                Y1  |
 800 +-I I-+-I/I---I/I---I/I---I I---I/I--------------------------------( )--+
   |R2K |RFG F RJZ  RF>10 READY RG                 RYFK |
   |   |      0                           |
   |   |                                 |
   |   |                                 |
   |M111 |                                 |
   +-I I-+                                 +
   |R1K                                   |
   |                                    |

指示灯输出
   |                                    |
   |                                    |
   |M0                                Y10  |
 808 +-I/I-------------+------------------------------------------------( )--+
   |AUTO       |                        DSTOP |
   |RUN       |                           |
   |         |                           |
   |         |                           |
   |M0  M5  M8013|                           |
   +-I I---I I---I I-+                           +
   |AUTO WAIT                               |
   |RUN  STOP                               |
   |                                    |
   |                                    |
   |M2                                Y11  |
 814 +-I I-------+------------------------------------------------------( )--+
   |ZLEN    |                           DCOOL |
   |      |                              |
   |      |                              |
   |      |                              |
   |M3  M8013|                              |
   +-I I---I I-+                              +
   |ZLCU                                  |
   |                                    |
   |                                    |
   |                                    |
   |M4  X3                             Y12  |
 819 +-I I---I I--------------------------------------------------------( )--+
   |XISI AUTO                            DXISI |
   |                                    |
   |                                    |
   |                                    |
   |X3  M0  M8013 M8                       Y13  |
 822 +-I I---I/I---I I-+-I/I--------------------------------------------( )--+
   |AUTO AUTO    |ERROR                      DAUTO |
   |   RUN    |                           |
   |         |                           |
   |         |                           |
   |M2        |                           |
   +-I I-------------+                           +
   |ZLEN       |                           |
   |        

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