Object Creation and Configuration Functions
opcda Construct an OPC data access client object.
addgroup Add a data access group to an opcda object.
additem Add data access items to a dagroup object.
connect Connect OPC data access (opcda) object to server.
disconnect Disconnect OPC data access (opcda) object from server.
get Get OPC Toolbox object properties.
set Configure or display OPC Toolbox object properties.
delete Remove OPC Toolbox objects from memory.
isvalid True for OPC Toolbox objects that are not deleted
Server Exploration Functions
flatnamespace Flatten a hierarchical OPC namespace.
getnamespace Return or view the OPC server namespace.
opcserverinfo Return version, server, and status information.
serveritemprops Return property information for items in OPC server namespace.
serveritems Query server or namespace for fully qualified item IDs.
Data Access Functions
cancelasync Cancel asynchronous read and write operations.
read Read data synchronously from group or items.
readasync Read data asynchronously from group or items.
refresh Read all active items in a group.writeWrite values to group or items.
writeasync Asynchronously write values to group or items.
Logging and Buffering Functions
start Start a logging task.
wait Suspend MATLAB execution until object has stopped logging.
peekdata Preview most recently acquired data.
stop Stop a logging task.
getdata Return logged records from OPC Toolbox engine to MATLAB workspace.
opcread Return logged records from disk to MATLAB workspace.
opcstruct2array Convert OPC Data from structure to array format.
flushdata Remove all logged data associated with the dagroup object.
General Functions