Data socket to read tags from a plc

[E.Carroll]

I'm using Labview data socket to read tags from a PLC. I have created a RSLinx OPC topic and can read the tags. The problem is I have to use a Data socket open and read for each tag. It works fine for up to 5 items. The more I add the slower the vi runs. Is there another way to do this with Labview. All I have is LabView 8.2 full Development.

[Doug M]

E.Carroll,

The shipping example Multiple OPC Items Monitor.vi shows how best to use the Datasocket VIs to read from multiple OPC tags.

If you want higher performance and more features, consider the LabVIEW DSC Module which allows you to easily configure and monitor thousands of I/O points using the shared variable engine.