ModbusTool | modbus master and slave test tool | TCP library

by ClassicDIY C# Version: 2.1.0.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | ModbusTool Summary

ModbusTool is a C# library typically used in Networking, TCP applications. ModbusTool has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A modbus master and slave test tool with import and export functionality, supports TCP, UDP and RTU.

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Quality

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ModbusTool has a low active ecosystem.

It has 387 star(s) with 143 fork(s). There are 35 watchers for this library.

It had no major release in the last 12 months.

There are 6 open issues and 13 have been closed. On average issues are closed in 283 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of ModbusTool is 2.1.0.0

Quality

ModbusTool has 0 bugs and 0 code smells.

Security

ModbusTool has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ModbusTool code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ModbusTool is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

ModbusTool releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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ModbusTool Key Features

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ModbusTool Examples and Code Snippets

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Community Discussions

Trending Discussions on ModbusTool

How to format a byte array to a 16bit CRC check for a Modbus frame?

QUESTION

How to format a byte array to a 16bit CRC check for a Modbus frame?

Asked 2020-May-25 at 20:29

I am currently trying to use an Arduino UNO R3 as a master in a Modbus serial (not TCP/IP) communications protocol. I have attempted to use outdated libraries for this with no avail, mostly due to deprecated dependencies. Anyways I decided to start from scratch and my current goal is to write a value to register 301 (starting address 300) to a slave I.D. "5". Before connecting to my slave I want to make sure I can regenerate the CRC for the frame depending on whether I write a 0, 1, or 2 to the register. For writing a 1 I have the frame as "05 06 01 2D 00 01 D8 7B" and from my research I can tell that "D8 7B" is the 16-bit CRC for the data. However the problem is that I can't seem to replicate the CRC output on my Arduino. I believe it has to do with how I have prepared and formatted my byte array but I am not sure. I do not understand the CRC algorithms well which is why I am using a library, any help would be greatly appreciated.

The following code is a slight variation of the example sketch provided with vinmenn's Crc16 library.

...

ANSWER

Answered 2020-May-25 at 20:05

As for replicating Modbus CRC16 with byte by byte method, according to the source, you need to use the parameters:

poly=0x8005
init=0xffff
refin=true
refout=true
xorout=0x0000
check=0x4b37

which means you should initialize crc as:

Source https://stackoverflow.com/questions/62009020

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install ModbusTool

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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