搜索资源列表
485通讯介绍
- 485通讯介绍,有例程
超长距光隔离RS—485中继器说明书
- H-485EE 超长距光隔离RS—485中继器说明书 一、 概述： 本设备用于延长RS—485通讯距离。通常RS—485的通讯距离在1000米左右，如需要更长的通讯距离，可将本设备串入。每台本设备可使通讯距离延长5000米。 本设备两台之间加有光隔离电路，无地线连结。在长距离使用时，地线压差大大减小，共模电压减小，使得RS—485更加通畅、可靠。此外，一端的通讯电路损坏，对另一端通讯电路无影响，保护系统安全。
AVR-485
- rs485总线网络程序，含节点和主控机电路原理图-rs485 bus network program, with nodes and the host computer circuit diagram
51单片机实现的485通讯程序
- 51单片机实现的485通讯程序51单片机实现的485通讯程序
DMX512
- DMX512协议最先是由USITT（美国剧院技术协会）发展成为从控制台用标准数字接口控制调光器的方式，但是传统上的信号传输依赖于485接口方式的双绞线，在使用灵活上大打折扣！而基于TCP/IP的无线传输由于时延大，控制数据实时性差等，也很难满足需求-DMX512 protocol is the first USITT (United States Association of Theater Technology) to develop into from the console using a
rs422-485application
- rs-422 485 总线应用简介，英文的，希望对大家有帮助-rs-422 485 Bus Application, English, and I hope all of you will help
485
- WV-CS950, CS850B, CW860A 的协议信息，用于云台控制的通讯协议数据手册-WV-CS950, CS850B, CW860A agreement information, for PTZ control protocol data communications handbook
485_chinese
- 485协议是常用的工业用总线协议。本书是485协议的中文版，介绍了485总线的电气特性，专用芯片等-485 agreement is a commonly used bus protocol for industrial use. This book is the Chinese version of the 485 agreement on the 485 bus electrical characteristics, such as ASIC
Schematic
- RS-232 to RS-485/422 Converter schematic. It can support RS-422 and RS-485 to change only two jumppers. And it used general devices. 75176 can be replaced max485, 65LBC184 etc.
LAN-WAN_Rev1.0
- Transporting DNP V3.00 over Local and Wide Area Network. 1 Overview 1.1 Purpose DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial ne
485
- 485全双工通信 （内有protues仿真电路）-485 full-duplex communication
RS-485_guide
- 485通讯协议，一个很有用的资料,介绍了485通讯的若干细节描述-485 communication introduction
RS485
- 阐述了RS-485总线规范，描述了影响RS-485总线通信速率和通信可靠性的三个因素，同时提出 了相应的解决方法并讨论了总线负载能力和传输距离之间的具体关系。 -Described the RS-485 bus specification, describes the impact of RS-485 bus communication speed and communication reliability of the three factors, while the correspond
RS-232RS-422RS-485
- RS-232、RS-422与RS-485标准及应用,详细解答了关于232 485通信的知识-RS-232, RS-422 and RS-485 standard and application, detailed answers to the communication of knowledge about 232,485
CANbus_RS-485
- 现场总线CANbus与RS-485之间透明转换的实现-can and 485 convert
485
- 此程序是 RS-485 从机通讯，包含 3 部分：接收帧程序、发送帧程序及执行命令程序。-This program is RS-485 slave communication, consists of three parts: receiving a frame program to send the frame program and execute the command procedure.
RS-232-RS-422-RS-485
- RS-232、RS-422与RS-485标准及应用.doc-RS-232, RS-422 and RS-485 standards and applications. Doc
RS---485-application-guide
- RS-485选型及应用指南，周立功的文档，内有应用电路的说明，和程序编写范例-RS- 485 type selection and application guide, Zhou Ligong document, with application of the circuit, and programming paradigm
typical-485--analysis
- RS485总线是一种常见的串行总线标准，采用平衡发送与差分接收的方式，因此具有抑制共模干扰的能力。本文对其一种典型电路进行细微分析-A typical 485 communication circuit analysis
SY-485
- EM-485 非接触式射频ID卡只读器说明书 485系列的125KHZ非接触式射频ID卡只读器是釆用先进的射频接收线路设计及嵌入式微控制器,结合高效译码算法,完成对64bits Read-Only uem4100兼容式ID卡的接收,具有接收灵敏度高﹑工作电流小﹑单直流电源供电﹑低价位高性能等特点.485只读器适用于门禁﹑考勤﹑收费﹑防盗等各种射频识别应用领域.-EM-485 non-contact RF ID card is read-only instructions 125KHZ 4