Hi!

I want to build a Java PLC interface for omron plc, and I want to be a open source application, but firs I need the protocol specification for omron to test my application.

I searched a lot, but i don't see anything that indicates how it's write or read (the format bytes). I search in this forums but a lot of links doesn't work could some one help me?

Greetings

 

You can download a copy of Omron's Communications Commands manual from mrplc.com (Downloads/Omron/Manuals) search for W342.

This should get you the information you are looking for.

Jerry Miille

 

The protocol is called "FINS", and it is fully documented in their manuals. Depending on the PLC model you have, and the type of network (RS-232, Ethernet, etc.) you are using, you might need a "host link adaptor" module.

For Ethernet, you probably want the following manuals:

W420-E1-04 Ethernet Units Construction of Networks

W421-E1-03 Ethernet Units Construction of Applications

 

Thanks a lot, i want to start workin with rs232 usin a cj1m plc.
I'll look for this documentation.

 

Hello,

I'm also starting to develop a Java PLC interface for omron, so I'm very interesting to know if you have already do it.
Thanks a lots