摘要： 数字I/O模块与模拟量输入模块是计算机监控系统中最常用的模块。该文设计了用于操作这些模块的通信协议，并用软件进行仿真。开发RS-232/RJ-45与RS-232/RS-232协议转换器，延长了计算机监控的通信距离，实现了计算机监控系统的远程维护与协议截取。用仿真模块和协议转换器构建了计算机监控系统的仿真开发平台。

关键词: 数字I/O模块, 模拟量输入模块, 协议转换器, 串行通信, 仿真

Abstract: Computer monitor systems are widely used in many fields nowadays. Imitated digital input and output modules, analog input module concerning computer monitor system are designed, including the protocols to operate these ones. RS-232/RJ-45 and RS-232/RS-232 protocol converters are developed to extend the distance of computer monitor system covered. Furthermore, remote serial communication protocols capture and remote system maintenance can be done by these converters. An imitated development platform of computer monitor system is constructed through all the software described above.

Key words: digital I/O module, analog input module, protocol converter, serial communication, imitation

中图分类号: 

• TP391.9