Concept 1:485 bus communication interval to reach 1200 meters.
概念一：485总线的通讯间隔能够到达1200米。
It studies the intelligent sub-station about its hardware and software structure, detailedly analyses RS-485 bus communication technique and bi-port RAM arbitration technique.
研究了智能分站的硬件和软件结构，详细分析了RS- 485总线通讯技术、双端口ram仲裁技术。
System adopts RS-485 bus communication network which way of communication is half duplexing and accumulate and check-up communication algorithm, which are carried on data transmission.
系统采用半双工式RS- 485总线型通信网络和累加和校验通信算法进行数据传输。
With the communication interfaces of RS-232, RS-485, CAN field bus and Ethernet, it is available for different connection modes of power system.
装置配有RS- 232, RS - 485,CAN现场总线及以太网通信接口，可适用于电力系统的多种接线方式。
In this paper, a communication protocol based on RS-485 bus is discussed in detail, and the qualitative analysis of its reliability using the finite state machine model is given.
本文详细讨论了一种基于RS- 485总线的通信协议，并用有限状态机模型对其可靠性做定性分析。
Communication quality is the need to test and debug according to the construction experience. 485 bus, although simple, but it is necessary to set up strict construction standards wiring.
通讯质量是需求根据施工经历进行测验和调试的。485总线尽管简略，但有必要严厉装置施工标准进行布线。
The essay introduces multi-chip calculator communication system based on RS-485 bus, especially MAX-487 chip and the components of the communication system and gives the flow diagram.
介绍了基于RS-485总线的单片机多机通信系统，重点介绍了MAX-487芯片和通信系统的组成，并给出了流程图。
This article introduces the process of designing the communication board between 485 - bus and USB and 485-device detection system.
本文介绍usb接口的485设备通信板卡和485设备检测软件的设计过程。
We constructed a RS-485 bus based digital video monitor system with a DSP based video-image compressing card, a RS-485 serial communication card and the monitor software pack for the master computer.
我们采用基于DSP的视频图像压缩卡、RS- 485通信卡和上位机监控软件包构建了基于RS - 485总线的数字视频监控系统。
Besides, the paper also improves a serial communication protocol based on RS-485 data bus, and realizes the application.
此外，本文还改善了基于RS- 485总线的串口通信协议，并实现了这种协议的应用程序。
First, an interface convert card is designed, which can convert can field bus and RS-485 bus to Ethernet. This card will build up the hardware platform of the seamless communication system.
本文首先设计了用于CAN总线和RS- 485总线向以太网转换的接口转换卡，构建了无缝通信系统的硬件平台。
Controller has RS-485, MODBUS standard field bus-bar communication interface and facilitate connect to switch board system.
控制器具有RS- 485,MODBUS标准现场总线通讯接口，方便接入只能开关柜系统。
After analyzing the features of CAN bus and RS-485, multifunctional concentrator and network communication protocol is designed.
通过分析CAN总线和RS 485总线的特点，设计了CAN总线多功能集中器和网络通信协议。
Main board communicates with all control units through RS-485 communication bus, and they compose a total distributed control system.
主板和控制板之间通过RS- 485总线进行通讯，构成了一个集散控制系统。
Relied on the analysis of the system communication data characteristic, network structure and other bus advantage, we construct the networks using improved RS-485.
在分析系统传输数据特点、网络结构及其它总线优势的基础上，提出以改进的RS- 485组网。
This paper introduces a communication controller in Intelligent Building. This controller is based on the 8051 series SCM and RS-485 field-bus.
本文介绍了智能楼宇中基于RS-485远程总线系统的通信控制器。
The effects on RS-485 bus-based data transmission are analyzed. The principle structure and communication protocol of system are designed.
分析RS- 485数据传输的影响因素，设计了系统总体结构及传输协议。
The effects on RS-485 bus-based data transmission are analyzed. The principle structure and communication protocol of system are designed.
分析RS- 485数据传输的影响因素，设计了系统总体结构及传输协议。
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