摘要
设计了PLC与PC机串行通讯口之间信号适配器硬件电路,包括输入接口电路、输出接口电路。该信号适配器不占用PLC的任何硬件或软件资源,学生可按正常的方式绘图、接线,更能模拟现实、锻炼学生的动手能力。
This research works out a design of signal adaptor circuit of serial communication port between PLC and PC, including input interface circuit and output interface circuit. This adaptor does not use hardware or software resource. Students can make the drawings and connections in a normal way.
出处
《张家口职业技术学院学报》
2008年第2期60-62,共3页
Journal of Zhangjiakou Vocational and Technical College
关键词
PLC
串行通讯口
信号适配器
接口电路
PLC
serial communication port
signal adaptor
interface circuit
