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COmm
- 单片机和PC机的串行通信一般采用RS-232、RS-422或B3-485总线标准接口，也有采用非标准的20nnJL电流环的。为保证通信的可靠，在选择接口时必须注意：(1)通信的速率；(2)通信距离：(3)抗干扰能力；(4)组网方式。本文主要介绍采用RS-232接口与单片机通信的方法
003
- RS-232、RS-422与RS-485协议标准及应用概述
MAX485_1281849
- The MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electrostatic discharge (ESD)
RS-422、RS-485 应用笔记
- 485通讯是工业现场用的很广泛的通讯方式，现在仍然在应用-485 communications industry is the scene of extensive means of communication, still in the application
Serial_CommunicationSource
- 比较高级的串口的通讯库，有可以运行的程序，完整的串口的通讯类库和实际的代码。对RS-232, RS-422等串口通讯，是非常好的参考，也非常有实用价值。-Serial port Communication source code for C++ on Windows. Very useful source code and C++ class/library.
sp487
- The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422 standards. The SP486 features a common driver enable control the SP487 provides independent driver enable controls for each pair of drivers. Both feature t
2006122022141110281
- 本文详细地介绍了如何从RS-232信号线上高效率地产生电源 如何实现RS-232 接口与RS-485/RS-422接口的智能转换 同时 也给出了具体的硬件设计及软件设计方法-This article describes in detail how the RS-232 signal from the line to produce high-efficiency power supply how to interface with RS-232 Interface Converter RS-
485appnote
- It is a beneficial document from Analog Devices explaining why rs 485 and rs 422 protocols are highly used in industry
Com_2.2
- 传感器是实现高精度的重要部分之一，电阻应变式称重传感器传感器由电阻应变片、弹性机械体、检测电路三部分组成。-Serial port is called serial interface, also known as serial communication interface, according to electrical standards and protocols to points, including RS-232-C, RS-422, RS485, USB, etc..
Src
- MOXA CP1344 工业型RS-422/485多串口卡驱动程序-MOXA CP1344 industrial-type RS-422/485 Multiport Serial Card Driver
usb-rs232
- 专业研发USB转串口产品,高速USB2.0,一 个USB口可连接16个RS-232/422/485设备-usb-rs232
MAX485_1281849
- MAX485资料The MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electro- static disch
MAX485
- max485 DATASHHET (MAX485应用手册)-Low-Power, Slew-Rate-LimitedRS-485/RS-422 Transceivers
test
- A universal asynchronous receiver/transmitter, abbreviated UART ( /ˈ juː ɑrt/), is a type of "asynchronous receiver/transmitter", a piece of computer hardware that translates data between parallel and serial forms. UARTs are commonly used in
Labview-serial-port
- 介绍和编程： 1，什么是串口？ 2，什么是RS-232？ 3，什么是RS-422？ 4，什么是RS-485？ 5，什么是握手？ -1. Overview of Serial Bus 2. Connecting and Setting up a Serial Instrument Control System 3. How to Create a VISA Resource for the Instrument in MAX 4. Instrument C
Modbusform
- Modbus协议最初由Modicon公司开发出来，在1979年末该公司成为施耐德自动化(Schneider Automation)部门的一部分，现在Modbus已经是工业领域全球最流行的协议。此协议支持传统的RS-232、RS-422、RS-485和以太网设备。许多工业设备，包括PLC，DCS，智能仪表等都在使用Modbus协议作为他们之间的通讯标准。有了它，不同厂商生产的控制设备可以连成工业网络，进行集中监控。-Modbus agreement at first by Modicon comp
SUPERCOM
- The SuperCom Serial Communication Library is a programer s library used to develop serial communication applications.The functions are grouped logically with respect to their functionality and portability. Some of the SuperCom API functions are spe
rs422
- RS-422的VHDL实现，代码测试能用-RS-422 VHDL implementation code test can be used
chuanganqi
- 基于tms320f2812(DSP)的高精度绝对式编码器驱动程序，使用RS-422通信协议-Based tms320f2812 (DSP) high-precision absolute encoder driver, use the RS-422 communication protocol
ck
- 支持基于串行接口（RS-232、RS-422、RS-485）、GPIB总线（IEEE2488、HPIB标准）、VISA总线的通信；-Supports serial interface (RS-232, RS-422, RS-485), GPIB bus (IEEE2488, HPIB standard), VISA bus communication