connect - Connect opcda object to server
Syntax
connect(DAObj)
Description
connect(DAObj) connects the opcda object DAObj to
the OPC server that you specified by the Host and ServerID properties.
When you connect DAObj, the Status property
takes the value 'connected'. You can disconnect DAObj from
the server with the disconnect function.
When you disconnect DAObj, the Status property
takes the value 'disconnected'.
If DAObj is an array of objects and the function
cannot connect some of these objects, it generates a warning message.
If the function can connect none of the objects, it generates an error
message.
It is possible to create groups and items before connecting
to the server. However, servers impose restrictions on client group
and item names. Therefore, if you create a group hierarchy and then
connect to the server, connect automatically deletes
groups or items that the server cannot support, and issues a warning
message.
Examples
Create a Data Access client and connect to the server:
da = opcda('localhost', 'Matrikon.OPC.Simulation');
connect(da);
See Also
disconnect
 | clonegroup | | copyobj |  |
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