06-06-2014 11:29 PM
06-08-2014 09:56 AM
Hi,
There are two things required
1. Connecting to PLC from PC - You need a OPC Server (NI or Non NI); Check the OPC Server has driver support of the PLC.
2. Getting the PLC Status to LabVIEW from OPC Server - You need NI DSC module to create a OPC Client which can Read/Write the status from NI OPC server.
06-08-2014 11:09 AM
If the device uses modbus, then you can use the Modbus Library in your LabVIEW program to communicate with the device.