介绍了串口编程技术，RS485总线驱动模式和RS485串口驱动程序。 然后在此基础上设计和实现了SDM300远程控制模块和异步信道的通信模块。
Findally, we implement SDM300 remote control module and Async communication module on the basis of introducing technology of serial programming , RS485 bus driving mode and RS485 serial driver.
用高级语言编程技术设计了上位机监控界面，包括数据传输采集、存储、查看、远程控制等，完成了基本框架。
Making out the supervise interface with high level programming language0 it include data collection and transfer, storages, examine, Long-distance control.
首先介绍了在系统可编程技术(isp)的基本原理及特点，给出了基于IS P技术的远程控制系统的结构，分析了该系统的工作原理。
In this paper, the theory and performance of ISP devices is introduced first. The structure of a remote control system based on ISP is given, and the principle of the system is discussed.
本文阐述了可编程控制器控制系统中，通过ASCII模块，实现远程操作站与可编程控制器的连接，并开发了ASCII模块中的接口通讯程序。
This paper expounded that the long distance operating station connect to PLC control system with ASCII module, and edited the communication program stored in ASCII module.
本文阐述了可编程控制器控制系统中，通过ASCII模块，实现远程操作站与可编程控制器的连接，并开发了ASCII模块中的接口通讯程序。
This paper expounded that the long distance operating station connect to PLC control system with ASCII module, and edited the communication program stored in ASCII module.
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