Disconnect and delete all OPC Toolbox objects
opcreset disconnects and deletes all
OPC Toolbox™ objects. This command flushes any data stored in the buffer, cancels
all asynchronous operations, and closes any open log files.
You cannot reconnect a toolbox object to the server after you delete the object.
Therefore, you should remove these objects from the workspace with the
Note that you cannot call
opcreset if an OPC Data Access
Explorer session is open, or if Simulink® models containing OPC Toolbox blocks are open. Before calling
opcreset, close all
OPC Data Access Explorer sessions and all open Simulink models containing OPC Toolbox blocks.
opcreset -force closes all OPC Data Access
Explorer sessions and all Simulink models containing OPC Toolbox blocks, without prompting to save those sessions and models. If you
-force option, you lose any unsaved changes to those
sessions and models. Use the
-force option only as a last
opcda object, and add a group to that object.
Then delete the OPC Toolbox objects using
opcreset, and clear all variables
from the workspace.
da = opcda('localhost','Dummy.Server'); grp = addgroup(da); opcreset; % Deletes all objects % Clear the variables clear da grp opcfind