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Description: FreeMODBUS 是针对通用的Modbus协议栈在嵌入式系统中应用的一个实现。Modbus协议是一个在工业制造领域中得到广泛应用的一个网络协议。一个Modbus通信协议栈包括两层：定义了数据结构和功能Modbus应用协议和网络层。在FreeMODBUS的当前版本中，提供了Modbus Application Protocol v1.1a 的实现并且支持在Modbus over serial line specification 1.0中定义的RTU/ASCII传输模式。从0.7版本开始，FreeModbus也支持在TCP defined in Modbus Messaging on TCP/IP Implementation Guide v1.0a中定义的TCP传输
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Size: 4359118 |
Author: qwerty123@sina.com |
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Description: 本人最近为了实现电脑与Delta VFD-M变频器通讯，特意用VB6.0编了一个Modbus协议通讯软件，不过这只是一个测试版，但Modbus的ASCii协议和RTU协议都已经实现。-Recently I had a computer in order to achieve Delta VFD-M inverter communications, specially prepared using VB6.0 a Modbus protocol communications software, but it is only a test version, but the Ascii Modbus protocols and RTU agreement has been achieved.
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Size: 133120 |
Author: 好男 |
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Description: E语言串口调试源码，中文编程语言，支持ASCII和十六进制转换，支持modbus RTU-E language serial debugging source code, Chinese programming language that supports ASCII and hex conversion, support modbus RTU
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Size: 13312 |
Author: onlylgb |
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Description: MSComm
Is use by Visual Basic to retrive data for
Modbus RTU and ASCII using serial communication port
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Size: 50176 |
Author: WKL200248 |
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Description: Assemply
Is use by Visual Basic to retrive data for
Modbus RTU and ASCII using serial communication port
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Size: 15360 |
Author: WKL200248 |
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Description: modbus协议RTU和ASCII格式的相互转换，TCP网络上的modbus协议解析和封装-modbus protocol RTU and ASCII format conversion, TCP modbus protocol on the network analysis and packaging
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Size: 5120 |
Author: kingboy |
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Description: 自已用DELPHI开发的MODBUS测试软件源码及源代码，需要的朋友能参考一下。MODBUS 协议为开放式的协议，使用轮询方式。MODBUS分为MODBUS RTU/ASCII、、MODBUS TCP、MMODBUS PLUS几种，对应于不同的硬件平台，世界上大多数的仪器与仪表，大多数的控制器都使用或支持该协议。学习与掌握本协议，对工控网友来说，非常有意义。
-Own DELPHI in MODBUS testing software source code and source code, a friend in need to refer to. The MODBUS protocol is an open protocol, the use of polling. MODBUS is divided into a MODBUS RTU/ASCII,, MODBUS TCP, MMODBUS PLUS several corresponds to different hardware platforms, most of the world and instrumentation, most of the controller to use or support the agreement. Learning and mastery of this Agreement, for industrial users is very meaningful.
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Size: 2216960 |
Author: xiying |
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Description: 用vb6实现与台达变频器的通讯
用到ASCII的MODBUS-Used ASCII MODBUS communication with Delta converter using vb6
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Size: 6144 |
Author: qinshaohua |
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Description: 基于arm2410+Linux，MODBUS协议ASCII模式主从通讯的实现，通过RS485,RS232进行数据传输-Base on Arm2410+Linux,MODBUS Protocol,ASCII Mode,Master&Slave Communication，via RS485,RS232
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Size: 11264 |
Author: kqss |
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Description: SyCon
System Configurator for Ethernet and Serial Protocols
Ethernet (TCP, UDP, ALI, SMTP, FTP), Open Modbus/TCP, ASCII, 3964R, RK512, Modbus RTU, Modbus Plus, Modnet 1/N, Modnet 1/SFB
SyCon is a universal Fieldbus Configurator
This means you can configure the most important fieldbus systems like
PROFIBUS, InterBus, CANopen, DeviceNet, ControlNet, SDS, AS-Interface etc. with the same tool.
SyCon is a global Fieldbus Configurator
You configure all devices with one tool. SyCon checks the dependencies
between the devices. SyCon only allows configurations that make sense. In
case of doubt SyCon will give you a warning.
To Hilscher devices you can make downloads of the configuration data. For other devices, export functions or documentation possibilities are available.
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Size: 686080 |
Author: Thomas. Eom |
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Description: C#下的modbus主站程序，支持RTU和ASCII,可以选择以太网或串口方式，简单易学是初学者入门的帮手。-Modbus master program in C#, support RTU and ASCII can choose Ethernet or serial manner, easy to learn beginner helper.
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Size: 76800 |
Author: 冉启发 |
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Description: SIMATIC S7系列串行通讯模板的功能描述；
SIMATIC S7系列串行通讯模板的ASCII协议通信；
SIMATIC S7系列串行通讯模板的MODBUS RTU协议通信；-Serial Communication，CP，ASCII，MODBUS RTU，SIMATIC S7
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Size: 4062208 |
Author: 曾磊 |
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Description: 外国人是写的modbus通信程序，与硬件无关，c语言写的，可实现RTU、ASCII模式的通讯-Foreigners are written modbus communication program, and hardware-independent, c language, achievable RTU, ASCII mode communication
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Size: 3845120 |
Author: 张鑫 |
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Description: Modbus Slave RTU, ASCII and TCP,
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Size: 3406848 |
Author: ikhsanul hakim |
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Description: 自己写的一个modbus小程序，支持rtu和ascii方式，其原理是采用注册解析回调函数的方式实现的。-Modbus wrote a small program to support rtu and ascii mode, the principle is the use of registered callback function analytic approach to achieve.
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Size: 6268928 |
Author: ydz |
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Description: FreeModbus简介
FreeMODBUS一个奥地利人写的Modbus协议。它是一个针对嵌入式应用的一个免费（自由）的通用MODBUS协议的移植。Modbus是一个工业制造环境中应用的一个通用协议。Modbus通信协议栈包括两层：Modbus应用层协议，该层定义了数据模式和功能；另外一层是网络层。
FreeMODBUS 提供了RTU/ASCII 传输模式及TCP协议支持。FreeModbus遵循BSD许可证，这意味着用户可以将FreeModbus应用于商业环境中。目前版本FreeModbus-V1.5提供如下的功能支持-Free Modbus
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Size: 2692096 |
Author: rory |
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Description: STM32单片机freemodbus的移植，主从机的都有-1, transplant FreeModbus1.5 and RT-Thread1.1.1 to STM322, development platform supports Eclipse, Keil, IAR3, can be used in the Eclipse plug-in version management EGIT 4, support Modbus RTU (ASCII untested)
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Size: 2020352 |
Author: 徐征辉 |
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Description: RS485通信程序。Modbus协议 ASCII模式
使用ASCII模式，消息包括了一基于LRC方法的错误检测域。
LRC域检测了消息域中除开始的冒号及结束的回车换行号外的内容。
LRC域是一个包含一个8位二进制值的字节。
LRC值由传输设备来计算并放到消息帧中，接收设备在接收消息的过程中计算LRC，
并将它和接收到消息中LRC域中的值比较，如果两值不等，说明有错误。
LRC方法是将消息中的8Bit的字节连续累加，丢弃了进位。-RS485 communication program. Modbus protocol ASCII mode
Using ASCII mode, the message includes an error detection method based LRC domain.
LRC field testing in addition to the beginning of the message field colon and end carriage return line numbers outside content.
LRC field is a binary value that contains an 8-bit byte.
LRC value calculated by the transmission device and into the message frame, the receiving device receiving the message in the process of calculation LRC,
Receives the message and place it in the LRC field value, and if the two values are unequal, there is an error.
LRC is the message of the continuous accumulation of bytes 8Bit, discarding the carry bit.
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Size: 3072 |
Author: 蒋晓军 |
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Description: Matlab communication with a Programmable Logic Controller (PLC) over an RS-232 serial interface using ASCII Modbus protocol. This code was developed while working with an Eaton-ELC PLC device and was modified for general distribution. Standard Modbus communication protocols were employed.
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Size: 67584 |
Author: anish |
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Description: describes the for of conect a modbus protocol over rs232, in rtu mode or ascii mode
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Size: 226304 |
Author: estebang |
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