X0  

-------------------▎       ▎--------------------------------------------------------------------［PLS  M10］

                      启动 停止                                                                                               上升沿触发

                          M10                                C1
------------------▎       ▎--------------------▎  /    ▎----------------------------------------(    Y20    )
                      由X0  上升沿触发      ∣                                                                           输出
                          Y20                          ∣
                                                           ∣
-----------------▎       ▎------------------
                       自锁

                         M10
-----------------▎       ▎-------------------------------------------------------------------------(C1   K2  )
                     由X0  上升沿触发                                                                                  启停按键按下次数计数
                          
                                                                                                                                      
                        CI
-----------------▎       ▎-------------------------------------------------------------------------(T1 0  K50 )
                     C1计数为2时ON                                                                                    C1常开点ON时T10计时开始

                        T10
-----------------▎       ▎------------------------------------------------------------------------［RS T  CI ］
                     T10 ON  C1复位控制                                                                              C1复位