OPC Toolbox
Read and write data from OPC servers and data historians
OPC Toolbox™ provides access to live and historical OPC data directly from MATLAB® and Simulink®. You can read, write, and log OPC data from devices, such as distributed control systems, supervisory control and data acquisition systems, and programmable logic controllers.
With OPC Toolbox you can work with data from live servers and data historians that conform to the OPC Data Access (DA) standard, the OPC Historical Data Access (HDA) standard, and the OPC Unified Architecture (UA) standard. The toolbox lets you securely connect to OPC UA servers using a variety of security modes, algorithms, and authentication methods.
The product includes Simulink blocks that let you model online supervisory control and perform hardware-in-the-loop controller testing.
Get Started:
OPC for Advanced Process Control and Smart Manufacturing
OPC Toolbox, powered by the Matrikon® Flex SDK, lets you access live and historical plant data so you can build online MATLAB based applications or validate Simulink models for advanced process control or smart manufacturing. You can analyze the acquired plant data to optimize manufacturing processes.
Simulink model created using blocks from OPC Toolbox, which provide direct access to OPC data.
The OPC UA client object in MATLAB showing security mode and security policy information.
Graphically Browse Name Spaces
Find available nodes on an OPC UA, OPC DA, or OPC HDA server using a graphical browser that displays the index and IDs for all the nodes on the server.
Use the Browse Name Space tool to find the OPC nodes available on your server.
Access OPC UA Live Data
Exchange data with an OPC UA server using OPC UA Client objects in MATLAB. Interact with multiple nodes at the same time by creating an OPC UA node array. Access current node array data to get values, timestamps, and quality estimates.
MATLAB code used to connect to an OPC UA server and read the current value of a node array.
Plot of OPC UA data filtered by data quality.
View server namespace and item properties with the OPC Data Access Explorer app.
The OPC Read block for Simulink. You can choose items from an OPC server and read online plant data directly into your Simulink model.
OPC DA data organized by Client objects, Data Access groups, and Data Access item objects.
MATLAB code used to connect to an OPC HDA server and access historical data for processing.
Reading and Writing Data from an OPC HDA Server
Retrieve raw or processed data stored on the OPC HDA server by specifying the IDs you want to retrieve, and a time period for which to retrieve data. Configure your acquisition to retrieve raw data, aggregated data, or modified data.
Plot of resampled data items acquired from an OPC HDA server.
OPC UA Security
Connect to OPC UA servers over secure connections and configure security settings
OPC UA Security
Authenticate a secure OPC UA connection with username and password or X509 user certificate credentials
OPC UA
Write arrays of values to an OPC UA client node
See release notes for details on any of these features and corresponding functions.
