MODBUS TCP with Modbus Library

[Jaime Rodriguez]

Is it possible to communicate with a device MODBUS TCP with the modbus libraries for labview? I am using it succesfully with MODBUS RTU serial, but dont see how to use it with ethernet.

ANy ideas???

[Jaime Rodriguez]

Any tutorials for Modbus TCP communication???

[Oswald_Branford]

Hi Jaime!

The library that you can download for Modbus communication, includes examples for TCP/IP communication. The examples include instructions of use and just require a Master and a Slave to work. Im including the link to where you can download the library and to some information that can be useful to you:

Modbus Library

http://zone.ni.com/devzone/cda/epd/p/id/4756

Helpful Links

http://digital.ni.com/public.nsf/allkb/C3D8E30CF992B8CD86256FC8001CA598?OpenDocument

http://forums.ni.com/ni/board/message?board.id=170&message.id=325726&requireLogin=False

The VI's that install with the library are called:

MB Ethernet Example Master.vi

MB Ethernet Example Slave.vi

I'm ataching a picture of the front panel of both.

Hope this helps!

Have a great day! 🙂