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Description: MODBUS/TCP to RS-232/485 MODBUS/RTU gateway server
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Size: 194560 |
Author: 风间月 |
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Description: 485开发说明，包括原理、芯片、接口电路、原理图与MODBUS部分C51源代码-485 development, including the principles of chip interface circuit schematics and MODBUS part of the source code C51
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Size: 591872 |
Author: 徐苛杰 |
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Description: 这是一个电路图，作用是rs232-rs485转接口电路，很适用-This is a circuit diagram, the role of the RS232- RS485 interface circuit switch, it applies
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Size: 159744 |
Author: 张成刚 |
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Description: 提出一种智能家庭网关与信息家电之间的串口通讯方案,设计一套基于RS - 232的
串口通讯协议。方法 针对嵌入式系统在智能家居系统中的应用特点,参考电子控制领域通用的
Modbus协议,并用C语言编制相应的串口通讯软件。-An intelligent home gateway and the information appliances of the serial communication between the program, design a set based on the RS- 232 serial communication protocol. Methods for embedded system in the Intelligent home system characteristics, refer to the field of electronically controlled common Modbus protocol, and C language prepare the corresponding serial port communication software.
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Size: 203776 |
Author: lisuya |
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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/TCP to RS-232/485 MODBUS/RTU gateway server
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Size: 171008 |
Author: Zhou Qing |
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Description: OpenMODBUS/TCP to RS-232/485 MODBUS RTU gateway librar
Zhejiang Univ. Hangzhou, China
Dec.2006
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Size: 13312 |
Author: Zhou Qing |
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Description: modbus通信协议的相关资料文档
中文版
支持RS-232 RS-485 RS-422等
-Modbus communication protocol document relevant information in support of the Chinese version of RS-232 RS-485 RS-422, etc.
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Size: 92160 |
Author: 丁生 |
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Description: modbus source code with pic 16 and max 232
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Size: 12288 |
Author: soori |
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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: 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。-Modicon Modbus protocol originally developed by the out at the end of 1979 it became the Schneider Automation (Schneider Automation) department as part of Modbus is now the world' s most popular industrial protocol. The protocol supports a traditional RS-232, RS-422, RS-485 and Ethernet devices. Many industrial equipment, including PLC, DCS, intelligent instruments and so on using the Modbus protocol as standard for communication between them. With it, different manufacturers of industrial control equipment can be connected into the network, centralized control.
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Size: 43008 |
Author: changshun |
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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: 在51单片机上串口服务器，实现Modbus协议栈，支持232和485链路，并将单片机串口扩展至5个。-51 single-chip serial servers, Modbus protocol stack to support the 232 and 485 link, and single-chip serial port expansion to 5.
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Size: 29696 |
Author: 曾维亮 |
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Description: MODBUS协议中文版(高清版)
串行链路和TCP/IP 上的MODBUS标准介绍
该标准包括两个通信规程中使用的MODBUS 应用层协议和服务规范：
·串行链路上的MODBUS
MODBUS串行链路取决于TIA/EIA标准：232-F和485-A。
·TCP/IP上的MODBUS
MODBUS TCP/IP取决于IETF标准：RFC793 和RFC791有关。-MODBUS protocol Chinese Version (HD version) serial link and TCP/IP on the introduction of the standard MODBUS standard includes two MODBUS communication protocol used in the application layer protocol and service specification: serial link MODBUS MODBUS serial link depends TIA/EIA standards :232-F and 485-A. TCP/IP on the MODBUS MODBUS TCP/IP depends on IETF standards: RFC793 and RFC791 related.
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Size: 1030144 |
Author: Roberto |
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Description: MODBUS/TCP to RS-232/485 MODBUS/RTU的网关服务器-MODBUS/TCP to RS-232/485 MODBUS/RTU gateway server
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Size: 198656 |
Author: 慕容杰 |
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Description: 以标准的MODBUS 通讯协议来设计的工业通用
数据采集通讯模块。针对工业仪表标准的模拟信号和RS -232 数字信号的输出, 模块把从现场仪表采集的测量数据进行软件处理并以MODBUS 通讯协议组网远传。-Abstract:A way using MSP430F149 single-chip and RS-485 bus as the base of its hardware and the standard MODBUS communication
protocol to design the universe data-acquisition and communication module was introduced.According to the output of standard analog
signals and RS-232 digital signals of the industrial meters, the module can manage the data acquiring the spot meters by software programming and then transmit them remotely based on MODBUS protocol
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Size: 134144 |
Author: zhouliang |
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Description: Modbus协议是应用于电子控制器上的一种通用语言。通过此协议，控制器相互之间、控制器经由网络（例如以太网）和其它设备之间可以通信。它已经成为一种通用工业标准。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。此协议定义了一个控制器能认识使用的消息结构，而不管它们是经过何种网络进行通信的。它描述了一个控制器请求访问其它设备的过程，如何回应来自其它设备的请求，以及怎样侦测错误并记录。它制定了消息域格局和内容的公共格式。
当在同一Modbus网络上通信时，此协议决定了每个控制器需要知道它们的设备地址，识别按地址发来的消息，决定要产生何种行动。如果需要回应，控制器将生成反馈信息并用Modbus协议发出。在其它网络上，包含了Modbus协议的消息转换为在此网络上使用的帧或包结构。这种转换也扩展了根据具体的网络解决节地址、路由路径及错误检测的方法。
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信标准。-The Modbus protocol is a common language applied to electronic controllers. Through this protocol, the controllers communicate with each other, and the controller can communicate with each other via a network (such as Ethernet) and other devices. It has become a common industry standard. With it, different manufacturers of control equipment can be connected into an industrial network, for centralized monitoring. This protocol defines a message structure in which a controller can recognize the use of the message, regardless of the network through which it is communicating. It describes how a controller requests access to other devices, how to respond to requests other devices, and how to detect errors and record. It sets the public format of the message field pattern and content.
When communicating on the same Modbus network, this protocol determines how each controller needs to know their device address, identifies messages sent by address, and determines what action to take. If a re
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Size: 1125376 |
Author: feixiang |
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Description: Arduino MODBUS 232 Libraries
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Size: 203776 |
Author: jnpbl.rg |
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Description: MODBUS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。
Modbus 协议是应用于电子控制器上的一种通用语言。通过此协议，控制器相互之间、控制器经由网络（例如以太网）和其它设备之间可以通信。Modbus 协议定义了一个控制器能认识使用的消息结构,而不管它们是经过何种网络进行通信的。它描述了一控制器请求访问其它设备的过程，如何回应来自其它设备的请求，以及怎样侦测错误并记录。它制定了消息域格局和内容的公共格式。(The MODBUS protocol supports traditional RS-232, RS-422, RS-485, and Ethernet devices. Many industrial devices, including PLC, DCS, and intelligent instruments, are using the Modbus protocol as a communication standard between them.
The Modbus protocol is a common language applied to the electronic controller. Through this protocol, controllers can communicate between each other and the controller via a network (such as Ethernet) and other devices. The Modbus protocol defines a controller that recognizes the message structure used, regardless of what network they communicate. It describes how a controller requests access to other devices, how to respond to requests from other devices, and how to detect errors and record. It formulates the public format of the message domain pattern and content.)
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Size: 1021952 |
Author: 山问A |
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Description: 232通信，用于TI28335芯片的SCI通信,工作正常，波特率自动计算，配置好基本的数据格式后就可以移植成功(RS-232 and applied in TI C2000 series 28335,it works well ,SCI-B,autoset)
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Size: 3030016 |
Author: yunyunan |
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