How do I access remote Ethernet IO (Kepware OPC server)using Labview 6?

[Victor Trotter]

I am using Automation Direct's H2-EBC (Ethernet Base Controller) to communicate to the Labview host machine via ethernet. I've purchased Kepware's OPC server for the H2-EBC (which is working). How do I access the IO point tags from the Kepware OPC server from Labview?

I would appreciate any help you could provide here.

Regards,

Victor Trotter
Controls Specialist

[Matt_K]

There are a couple of routes you can take:

1) LabVIEW has built in ability to connect to OPC servers using DataSocket. You can find examples of DataSocket OPC vi's by going to Help->Examples->Communication->DataSocket OPC.

If you don't want to use the datasocket vi's it is also possible to use Front Panel Datasocket. Just place a control on your front panel, right click, and select Data Operations->Datasocket Connection. This will bring up a dialog box that will allow you to browse available OPC servers and their associated tags.

2) Purchase LabVIEW Datalogging and Supervisory Control Module. If you are monitoring many tags, datasocket will not perform well. I would recommend getting this piece of software if you will be monitoring extensive (hund
reds of) tags. You can find more information on LabVIEW DSC at: http://sine.ni.com/apps/we/nioc.vp?cid=1010〈=US

Matt Kisler
Application Engineer
National Instruments
http://www.ni.com/ask