showopcevents - Event log summary for OPC Toolbox events
Syntax
showopcevents(DAObj)
showopcevents(DAObj,Index)
showopcevents(Struct)
showopcevents(Struct,Index)
Description
showopcevents(DAObj) displays
a summary of the event log for the opcda object
specified by DAObj.
showopcevents(DAObj,Index) displays
a summary of the events with index of Index. Index can
be the numerical index, a string, or a cell array of strings that
specifies the type of event. Valid events are CancelAsync, Error, ReadAsync, Shutdown, Start, Stop,
and WriteAsync.
showopcevents(Struct) and showopcevents(Struct,Index) display
a summary of the events with index of Index for
the event structure, Struct. You can obtain an
event structure from the object's EventLog property.
The display summary includes the event type, the local time
the event occurred, and additional event-specific information.
Examples
Configure a logging task for the Matrikon Simulation Server,
then display the event log to find timing information for the logging
task:
da = opcda('localhost','Matrikon.OPC.Simulation');
connect(da)
grp = addgroup(da);
set(grp, 'RecordsToAcquire',10);
itm = additem(grp,'Bucket Brigade.Real8');
start(grp);
wait(grp);
showopcevents(da);See Also
opccallback
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