摘要
介绍了SIMATICS7 2 0 0的通讯方式 ,利用其提供的自由通讯口模式解决PLC通过MODEM和数据终端的通信的方法 ,给出了硬件配置。
This paper introduces communication mode of SIMATIC S7\|200 and the method that can solve the communication problem between PLC and remote DTE(Data Terminal Equipment) by modem. It also provides the hardware configuration, communication protocol and software programming.
出处
《机电工程》
CAS
2002年第6期10-13,共4页
Journal of Mechanical & Electrical Engineering
