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RS485Comm
- 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
PLCActiveX
- Omron & Keyence PLC Active X-Aicon PLC HMI This easy-to-use PLC ActiveX driver demonstrates: 1.1 Writing 10 words PC to selected PLC (Omron & Keyence) 1.2 Reading 10 words selected PLC to PC or Reading 10 x 16 bits selected PLC or both 1.3