欧姆龙PLC RS232 通讯 hostlink应用例子 源码 VC++开发 可用于学习编写OMRON_PLC上位机控制软件,Omron PLC RS232 communications applications hostlink example of VC++ source code can be used to study the preparation of the development of PC control software OMRON_PLC

PC OMR 可适用于网上阅卷，方便用户调卷改卷。(PC OMR can be used in online marking, convenient for the user to change the volume of certiorari.)