modbus TCP between Pro-Face HMI and LabVIEW

[AZVerdugo]

Hi all! I'm trying to connect an HMI from Pro-Face (model LT 3300) to an application running on a PC. The connection must be modbus TCP, over ethernet. 

Has anybody done this before? Is it a reliable communication?

thanks in advance

My best regards!

[ssk]

Hi,

I have not used that specific device but I have been using Modbus TCP to communicate to one of our own products on a long term test (test has been running for 1 year+ without problems).

[AZVerdugo]

Hello ssk:

   I think that communication is possible, and I'm sure it's quite reliable to trust on it, but the problem is that we don't know how to implement it. I've been searching over the forum but I didn't find anyone who used an Pro-face HMI hooked to a LV applicattion running on a PC.

   Can you tell me (or send me) any LabVIEW program to start? 

Thank you!

[unclebump]

Your easiest method would be to use the DSC module, but it depends on how much info you are transferring. We need more information about your application. How high speed does the application need to be??

[ssk]

Download and install the LabVIEW Modbus library:

http://sine.ni.com/nips/cds/view/p/lang/en/nid/201711

The drivers are fairly straight forward to use.

Modbus TCP over Ethernet is reliable.

ssk

[AZVerdugo]

Hello unclebump and ssk:

    I've already downloaded and installed Modbus Library on my computer. I also tried to use I/O server, without success.

   There is no requirements now. We only are trying to study how we can communicate to this HMI to develope future applications.  The first step is to stablish communication between HMI and LabVIEW. The second one, view how far we can go through this.

    We are using GP Pro EX 2.2 to program the HMI. Parameters (given by technical support) are correct, but they don't know how to use LabVIEW.

    Any example would be welcome.

Regards

[Inges]

Did you get it? I am also triying to comunicate PRO-FACE LT3300 with labview and I didn't get it.