Hi,

I'm searching for a Linux driver for Modbus/TCP. Does anybody know where to get one (free or commercial)?

Thanks for any help,

Olaf

 

Olaf,

If you ever use the term "searching" around anything Internet, you should also think:

Google: http://www.google.com

I typed:

Modbus/TCP linux

In the Google search window and got over 800 hits. Here's one that looks promising:

http://www.focus-sw.com/linux_sw.html

but there are many more.

Rufus

 

to Olaf:
free software of modbus protocol --
http://sourceforge.net

 

Please have a look at http://www.focus-sw.com. There you find commercial libraries for Modbus master & slave for Linux.

Henrik W Maier
FOCUS Software Engineering Pty Ltd
Contract Software Development - FieldTalk Modbus Protocols
Brisbane, Australia - http://www.focus-sw.com

 

The MatPLC has a Modbus master (the slave is not quite finished).

Jiri
--
Jiri Baum <[email protected]> http://www.csse.monash.edu.au/~jirib
MAT LinuxPLC project --- http://mat.sf.net --- Machine Automation Tools

 

If you are familiar with PHP, another possibility is using the modbus class developed by Yves Fuchs. It is available from http://www.phpclasses.org (free registration is required).

We have been using the class in a production environment for five weeks, and it is working great. We have a small PC (mini-itx style) running Apache 2 and PHP 4.3.2 on Windows XP embedded. The class uses straight socket programming for communication, so I don't know why it wouldn't work under Linux.

Jim