connecting LabVIEW to PLC

[Roxassaraus]

Hello,

I am trying to connect LabVIEW to PLC using NI OPC server. Its a (Allen Bradley) L23E Compact logix controller and I am finding it hard to get the device driver. Please help me in this regard and any link explaining how to connect labVIEW to PLC would be helpful.

Thanks in advance,

Sunil

[Greg_J · Accepted solution]

Hi Sunil,

Regarding the driver:  Check out the Supported Device & Driver Plug-In List for NI-OPC Server

Regarding the connection in LabVIEW:  You have two main options which depend on whether or not you have the LabVIEW DSC Module.  As seen here, you can either use shared variables with DSC to access your OPC tags, or you can just use the DataSocket VIs to connect to them directly as an OPC client.  Some documents that may be helpful in adding your specific hardware can be found here and here.

I hope this helps!

- Greg J