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VB-PLC-Commuation
- VB与台达PLC通讯程序源码 可以监控台达PLC的输入输出状态 注释很好的解释了通讯协议的用法-VB and Delta PLC communication program source code can monitor the the Delta PLC input and output status note explained the communication protocol usage
PLC_COM
- 可实现三菱PLC与电脑串口通讯的源代码，此程序与经用于多个工控系统，绝对无错！-Mitsubishi PLC can realize serial communication with computer source code, this procedure been used for many industrial control systems with, absolutely nothing wrong!
OmronComm
- Omroc Communication with PLC and computer source code in VB
PLC_Com
- It provides an example of OPC data interface as client in MS-Excel. The code is written in VB scr ipt in excel workbook which imports data from S7 PLC via OPC protocol through MPI interface.