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Description: 基本功能高效的CAN通讯应用.同样,CAN232 不仅适应基本CAN-bus产品,也满足基于高层协议如ModBUS、DeviceNet...之间可选 3. RS232接口,波特率在1200bps-basic functions of CAN efficient communications applications. Similarly, the CAN232 not only meet the basic CAN-bus products, but also to meet for high-level protocols such as ModBUS, DeviceNet ... between three options. RS232 interface, baud rate in 1200
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Size: 40960 |
Author: 所地方 |
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Description: rs232-485电路图，及制作指南，破除市售产品的神秘。-RS232-485 circuit and the production of guidelines, products sold to get rid of the mysterious.
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Size: 75776 |
Author: 丁路杰 |
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Description: 此代码是用c开发的支持linux下的串口RS232,Rs485,Rs422modbus规约采集，然后通过网络UDP/IP发送采集的数据-this code is c linux support to the development of the RS232 serial port, Rs485, Rs422modbus Acquisition Statute, and then through the network UDP/IP to send data acquisition
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Size: 138240 |
Author: YangJie |
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Description: modbus通讯协议设计 c语言实现 通过rs232可实现上位机和下位机的通信-Modbus communication protocol design c language can be realized through RS232 PC and the next crew of communication
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Size: 2048 |
Author: ll |
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Description: 利用FIFO数据结构,在8051单片机上实现全双工通讯,实现MODBUS通讯协议-Use of FIFO data structure, in 8051 to achieve full-duplex communications, realize MODBUS communication protocol
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Size: 5120 |
Author: 余主恩 |
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Description: Modbus通信协议说明：介绍了rs232和rs485总线是如何通讯的，很有必要下载的哦。-Modbus Communication Protocol Description: Introduction of the RS232 and RS485 communications bus is quite necessary to download Oh.
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Size: 156672 |
Author: 肖金星 |
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Description: ModBus是工业上的通用型通讯协议，目前ModBus可以支持RS232的串口通讯，也可以支持Ethernet以太网通讯，一般的工业设备上都支持有ModBus通讯协议
附件是ModBus Ethernet的TCP方式的通讯例程，仅供参考-ModBus is a general-purpose industrial communication protocols, the current ModBus support RS232 serial communications, Ethernet can also support Ethernet communications, general industrial equipment, both to support the ModBus communication protocol ModBus Ethernet attachment is the way the TCP communications Example way, for reference only
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Size: 72704 |
Author: 张军 |
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Description: Modbus通讯协议，编写的VS2005类库模块，内带编译好的DLL文件，txt内为源码文件，其中引用了本人编写的RS232.DLL文件（、已经上传，想要请下载），此源码为本人编写，版权归个人所有，禁止用于商业使用，仅限个人学习，参考，未经本人同意禁止转载或出售！如有问题请与本人联系（fudi850@yahoo。com。cn）-Modbus communication protocol, the preparation of the VS2005 Class Library module, within the band compiled DLL file, txt file for the source, of which I quoted a document prepared RS232.DLL (, has already been uploaded, you want to download), this source code for my writing, belongs to all individuals is prohibited for commercial use, is limited to individual learning, reference, without the consent of the prohibition reproduced or sold! If you have any questions please contact me (fudi850 @ yahoo. Com. Cn)
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Size: 17408 |
Author: 付頔 |
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Description: 模拟MODBUS主站、从站，包括TCP
• mod_RSsim76exe.zip - Demo executable v7.6
• mod_RSsim7_4b.zip - mode_RsSim V 7.4b source
• mylib.zip - Source : (library needed to compile)
-Simulator for Modbus slaves over RS232/RS485 and TCP/IP amongst other protocols.
• mod_RSsim76exe.zip- Demo executable v7.6
• mod_RSsim7_4b.zip- mode_RsSim V 7.4b source
• mylib.zip- Source : (library needed to compile)
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Size: 857088 |
Author: hemu |
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Description: This document describes the MODBUS over Serial Line protocol. MODBUS Serial Line protocol is a Master-Slave protocol. This
protocol takes place at level 2 of the OSI model.
A master-slave type system has one node (the master node) that issues explicit commands to one of the "slave" nodes and processes
responses. Slave nodes will not typically transmit data without a request from the master node, and do not communicate with other
slaves.
At the physical level, MODBUS over Serial Line systems may use different physical interfaces (RS485, RS232). TIA/EIA-485 (RS485)
Two-Wire interface is the most common. As an add-on option, RS485 Four-Wire interface may also be implemented. A TIA/EIA-232-
E (RS232) serial interface may also be used as an interface, when only short point to point communication is required. (see chapter
"Physical Layer")
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Size: 229376 |
Author: RAMAKERS_R |
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Description: AVR-ATMEGA32采用MODBus规约的RS232通信程序-ATMEGA32 MODBus code by AVR- the RS232 communication program
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Size: 1024 |
Author: 柯南 |
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Description: Project helps write \ read data to COM port (UART) RS232
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Size: 28672 |
Author: Oleg |
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Description: modsim32 is a modbus protocol simulator on windows platform with serial RS232 or RS485 connection to your laptop/desktop.
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Size: 262144 |
Author: sandesh gandhi |
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Description: 在PC机上实现了modbus的通信，利用PC上的232串口，根据modbus协议实现了上位机和下位机的通信，实现了控制和检测。在VC++ 2005环境下通过-Implement the Modbus commucation between master and slave machine in industrial. utilize the RS232 port to achive the modbus protocol. success in VC++ 2005 enviroment.
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Size: 11096064 |
Author: xinyancode |
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Description: routines to manage by polling a serial (RS232) node Modbus RTU slave. The microcontroller on which it was implemented is LPC1768. The routine for performing the CRC16 checksum is very small and very fast. MODBUS-SLAVE is complete. VERY INTERESTING.
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Size: 8192 |
Author: lupus |
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Description: 基于RS232物理接口的modbus协议的实现。目前提供三个功能码，并附有proteus仿真文件和整个keil工程文件。
原来在CSDN上下载到的,但是CSDN上面那个无法直接拿来运行.少了一些变量定义之类的.
现在修改好了,可以直接拿来用.-Based on the realization of the RS232 physical interface modbus protocol. Three function code, with proteus simulation file and keil project file. The original the CSDN download to the CSDN above that can not be directly used to run. Less variable definition like now revised, can be directly used.
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Size: 114688 |
Author: liujing |
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Description: modbusC++ modbus RS232 TCPIP源码与介绍合集，为了便于研究基于VC2005环境下使用，对介绍与源代码进行了整理，谢谢使用。-modbusC++ modbus RS232 TCPIP source and introduce collection, in order to facilitate research based VC2005 environment, introduced with the source code organized, thank you use.
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Size: 16423936 |
Author: xuxu |
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Description: PIC modbus RTU how to connect RS232 to RS485
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Size: 89088 |
Author: ming you |
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Description: Often in my day I find myself testing and debugging devices that communicate via the modbus protocol. In an effort to save myself time, I have tried several downloadable applications but always came to the same conclusion - Why pay money for something when it s not that hard to build myself? Also, given that modbus is a 30 year old standard, it makes it difficult to find current code that is usable in today s popular languages. What follows is a brief description of the madness behind the modbus and a small application that I find myself using daily when testing RS232 modbus devices. The code is hardly robust, but it gets the job done in the sense that it works and it is easy to use and alter - two features I find the most important in a lab setting. I hope you find this of some use!-Often in my day I find myself testing and debugging devices that communicate via the modbus protocol. In an effort to save myself time, I have tried several downloadable applications but always came to the same conclusion - Why pay money for something when it s not that hard to build myself? Also, given that modbus is a 30 year old standard, it makes it difficult to find current code that is usable in today s popular languages. What follows is a brief description of the madness behind the modbus and a small application that I find myself using daily when testing RS232 modbus devices. The code is hardly robust, but it gets the job done in the sense that it works and it is easy to use and alter - two features I find the most important in a lab setting. I hope you find this of some use!
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Size: 24576 |
Author: Andres |
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Description: RS232 转 4－20mA电流环原理图；工业品；(RS232 conver to current LOOP)
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Size: 105472 |
Author: 孙兆峰
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