This content is not available in your preferred language.

The content is shown in another available language. Your browser may include features that can help translate the text.

Using DSC Module for Interfacing a PLC with LabWindows™/CVI

Updated Dec 20, 2023

Reported In

Software

  • LabWindows/CVI
  • OPC Servers
  • LabVIEW OPC UA Toolkit
  • LabVIEW Datalogging and Supervisory Control Module

Issue Details

I have an application developed in LabWindows™/CVI and I would like to interface with a PLC.

What are my options?

Solution

  1. On the client side, DataSockets are an easy way to transfer data and it's natively supported by LabWindows/CVI. On the server side you can use the NI OPC Servers or a third party server. Make sure it can be a DataSocket Transfer Protocol server (publisher)
  2. On client side, you can use the LabVIEW Datalogging and Supervisory Control (DSC) Modulethat will allow you to configure OPC Client I/O Server and read it in LabWindows/CVI using Network Variables. On the server side you can use NI OPC Servers or a third party server that publishes OPC Classic (DA) or OPC UA.
  3. PLCs can usually communicate using TCP/IP or Serial interface. Check the Related Links section

Additional Information

If you are going to use the NI OPC Servers, make sure to check the Supported Device & Driver Plug-in List for NI OPC Servers that contains a list of PLCs' drivers supported.

Related Links

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement may be required, and support options vary by country.