PLC编程串口通信实例代码PLC programming example code serial communication -PLC programming example code serial communication

西门子PLC开发例子程序，链接库DLL文件，由于上位机与西门子PLC通讯-Siemens PLC program development example, link library DLL files, due to PC communication with Siemens PLC

RB7下典型OPC应用实例，与 PLC通讯并显示-RB7 typical application example OPC, communication with the PLC and display

PLC实例编程应用,应用于啤酒制冷系统及麦汁充氧系统。(The application of PLC example programming is applied to the beer refrigeration system and the wort oxygenation system.)

晶体的真空调频设备控制VI，通过串口于西门子PLC的通信。实现现场测量参数返回、控制命令下达、动作参数下达PLC、显示测量结果。(I edit the vacuum device control program, the programming language is LABVIEW, thanks to the example of network gods. Upload this document, hoping to provide help for later generations.