How can i read from Modbus/TCP

Dec 06, 2007 5 Replies
C

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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C

I haven't tested them, but you should be able to adapt one of the programs here without much difficulty:

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(don't worry about the Chinese, the important part is in English). See
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for general info.

Chris

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M

Hi,

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

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Contact Technical Support to request a datalogging example.

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T

Rogue Engineering makes an easy to use piece of shareware called Modbus Test Pro. It is available as a free fully featured download from

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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 snipped-for-privacy@rogue-engr.com

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B

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

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A

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is done in java and then there is libmodbus at
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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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