PXI data to opc external sources

[CantonKen]

I will preface this with "I have no experience with labview".

I have to collect data on a periodic schedule from a PXI chassis 1042 with an 8106 controller.

The data is to be inserted into a corporate historian which supports OPC.

The Labview "programmer" does not have any understanding of what I want to do.  He has supposedly created a sample on the pxi chassis with shared variables which I can use to test.

I have the evaluation version of Labview 2012.

As a starting point I would like to collect data from the pxi to 2012 but I don't know how.

Can someone point me to some procedure to connect this or some way to get data out of the PXI.

Is modbus a possiblity?

thanks for any help,

Ken

[tannerite]

Hi CantonKen,

Where do you have LabVIEW 2012 installed? Is it on a separate computer that is connected to the PXI chassis? Also, for communicating with an OPC server our Datalogging and Supervisory Control (DSC) Module is a nice option. You can set up an I/O Server that supports Modbus protocol. Here is how to create a Modbus I/O server as well.

As for shared variables hosted on the 8106 controller, as long as there is a network connection to the computer you are trying to access the shared variables on (same subnet), you should be able to access that data programmatically in LabVIEW.

National Instruments also has a good variety of training opportunities since you are new to LabVIEW.

[CantonKen]

The Labview 2012 computer is connected to the PXI on same subnet.

I need to feed the shared variable data from the PXI to the OPC collector for GE Proficy Historian.

Can the NI OPC server read shared variable on the PXI and host them out to the OPC collector without having an instance of Labview running on the computer?

  ie: can the NI opc server run stand alone and server data?

fyi: our person who is doing the labview development has been very disappointed in the labview training plan that was purchased because they keep canceling the classes.

thanks

Ken