一种综合型通信接口转换电路的设计

信息技术不断发展,许多控制系统在设计研发过程中需要通过通信接口完成指令的传达、信息的采集与各项控制显示功能。但不同的工作单元采用的通信接口不同,因此需要对各工作单元做通信转换后,方可正常通信。针对不同的通信接口,设计一种综合的隔离RS232、RS232,RS485通信转换电路,使得这几种通信接口在通信时只使用同一转换模块达到通信目的。

Design of an integrated communication interface conversion circuit

With the continuous development of information technology,many control systems need to complete the transmission of instructions,information collection and various control display functions through the communication interface in the design and development process.But different work units use different communication interfaces,so it is necessary to do communication conversion in each work unit before normal communication.According to different communication interfaces,a general isolated RS232,RS232,RS485 communication conversion circuit is designed,so that these communication interfaces only use one conversion circuit to achieve the purpose of communication.