本例程演示了PC机和智能型仪表如何通过RS485接口进行通信。仪表采用百特公司产XMA5000智能型专家自整定PID调节器，该仪表的通讯协议已经在例程代码中作了详细说明。该例程非常简单，旨在说明如何在VC++中使用重叠方式读写串口。这个是异步通信，昨天传那个是同步通信。-The routine demonstration of PC and intelligent instrument through RS485 communication interface. Instrumentation

云台控制系统,基于VC的串口通讯实例。 包括串口波特率、停止位等设置-PTZ control system, based on the VC s example of serial communication. Including serial port baud rate, stop bits and other settings

PcommPro串口通讯库,有VB,VC,DELPHI下的相关例子-PcommPro serial communication library, there are VB, VC, DELPHI examples under the relevant