rs422

The application of ARCNET network and RS422 / 485 communication method provide the ability of exchanging and managing process data .

同时，ARCNET网络和RS422／485通信技术的应用为系统提供了交换和管理过程数据的能力。

In home RS422 / RS485 is major way . Communication task , control and measure are complete by single CPU , which limited the development of performance .

目前国内在这一应用领域主要通信方式为RS422/RS485，继电保护器的测量、控制和通信任务由单CPU完成，制约系统性能的提高。

In the case of RS422 encoders ( TTL ) the resolution can be improved by a factor of four by means of edge evaluation .

在RS422的情况，入码器（TTL）分解能经由边缘评估被四的因数改良。

This paper designs a kind of circuit with RS232 , RS422 / 485 and Profibus-DP field bus I interface , it mainly be used in auto control system .

本文设计了一种带有RS232，RS422/485，Profibus-DP现场总线接口的电路，主要应用于自动控制系统中。

In order to communicate with a up PC386 and meet the needs of a transmission distance , a communication standard of RS422 is adopted .

为便于与上位机（PC386）通讯，满足传输距离的要求，该系统采用RS422通讯标准。

In this system , only one GPS receiver is been used , and IRIG-B code is transmitted by RS422 / 485 . After decoding the IRIG-B code , decoder can set time to equipments .

这种对时方案中，每个变电站只安装一个GPS接收装置，利用RS422/485总线传输IRIG-B码，经过解码器后，对装置进行对时。

Combined with the feature of serial communication and CAN , a design of common serial adapter based on CAN is described . A simple method is used to realize the data transmission between RS232 interface and RS422 / 485 interface .

结合串行通信和CAN总线的特点，进行了通用串口到CAN总线适配器的设计，同时使用一种简易的方法实现了RS232接口到RS422/485接口的数据相互转换。

This scheme includes two devices of interlink & CAN bus / RS422 switcher and CAN bus / Ethernet gateway , used to link the CAN bus , serial bus and Ethernet and transmit information between them .

该方案还包括两种异构网络互连设备&CAN总线/RS422转换器和CAN总线/Ethernet网关，用于CAN总线、以太网、串行总线之间的网络互连和数据交换。