要求在昆侖組態觸摸屏上能夠顯示數顯表的值，求三菱plc與數顯表之間怎么通訊的？？？
                                      昆侖組態觸摸屏
                                                      |
                    
                                            三菱PLC
    
                                                      |

                       顯表       顯表      顯表    
顯表之間串聯，最后連到plc上

RS485直接跟屏通信，不用經過PLC。