How can i read from Modbus/TCP

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captdrum's Avatar (by Gravatar)captdrum posted on
December 6, 2007, 5:48 pm
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Greetings all,

Can some one point me of in the right direction, i need to read a
value to from a modbus device, which is connected on the LAN.

Is there any ready-made software which can read a value, and store it
either in a text file or in a XML-file.

Thanks
Captdrum

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chrisj.doran's Avatar (by Gravatar)chrisj.doran posted on
December 7, 2007, 9:29 am
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Re: How can i read from Modbus/TCP




I haven't tested them, but you should be able to adapt one of the
programs here without much difficulty:
http://www.kongzhi.com.cn/expertsarticle.php?articleId 7
(don't worry about the Chinese, the important part is in English). See
http://www.modbus.org/  for general info.

Chris

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Mark@AST's Avatar (by Gravatar)Mark@AST posted on
December 7, 2007, 12:49 pm
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Re: How can i read from Modbus/TCP



Hi,

This can easily be accomplished with an ActiveX Control from Automated
Solutions.

http://automatedsolutions.com/products/modbustcp.asp

Contact Technical Support to request a datalogging example.

http://automatedsolutions.com/contact/

tkirk's Avatar (by Gravatar)tkirk posted on
December 7, 2007, 2:05 pm
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Re: How can i read from Modbus/TCP



Rogue Engineering makes an easy to use piece of shareware called
Modbus Test Pro. It is available as a free fully featured download
from www.rawiq.com and supports Modbus TCP as well as the serial
versions of Modbus. You can set it up to save communication logs to a
text file.

Tim Kirk
tkirk@rogue-engr.com




btmull's Avatar (by Gravatar)btmull posted on
December 12, 2007, 11:39 am
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Re: How can i read from Modbus/TCP




Look for the Omni Modbus Tester from Omni Flow Computers Inc.
(omniflow.com)

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Antti =?utf-8?Q?J=C3=A4rvinen?'s Avatar (by Gravatar)Antti =?utf-8?Q?J=C3=A4rvinen? posted on
December 16, 2007, 4:22 pm
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Re: How can i read from Modbus/TCP




http://jamod.sourceforge.net/  is done in java and then there is
libmodbus at http://pes.free.fr/  but I have no idea if it is limited to
serial communications only ; should be fairly easy to adapt it to do
tcp also as the protocol inside is the same.

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