Read and write data from OPC servers and data historians
OPC Toolbox™ provides a connection to OPC DA and OPC HDA servers, giving you 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, that conform to the OPC Foundation Data Access (DA) standard. You can read and analyze data from any data historian that conforms to the OPC Foundation Historical Data Access (HDA) standard.
The product includes Simulink blocks that let you model online supervisory control and perform hardware-in-the-loop controller testing.
From Eric Wetjen, OPC Toolbox Technical Expert