Need modbus Java library [closed]

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I need simple modbus Java library with source code. I found on google but there is .jar file and doesn't have strong using manual. Can anybody suggest me modbus library with using manual or source code ?

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You can try Jamod. I never used it, but a colleague of mine used it sometime ago and he was pleased with it.

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Try this one:

http://sourceforge.net/projects/jamod/files/jamod/1.2/

By the way, you can use JDGUI to see the sources of any jar file.

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• FieldKit is paid and open source, and haves support for several languages including Java

• jModbus Project

• j2mod is a fork of jamod

If you are using Modbus RTU (Serial) Java Communications API is needed; stolen from FieldKit documentation:

The Java Communication API is available from different sources:

1. Sun Microsystems is publishing versions for the Solaris and the Windows platform at http://java.sun.com/products/javacomm/.
2. Keane Jarvi publishes a LGPL licensed Linux and cross-platform COMM API at http://www.rxtx.org/.
3. An excellently performing package for a large variety of platforms is the SerialPort package from Solutions Consulting at http://www.serialio.com. Using this package, poll cycles of less than 10 ms can be achieved!

Perhaps jSSC is a good javax.comm implementation too.

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There is another one recent solution modbus4j.