isConnected
True if HDA Client is connected to server
Syntax
isConnected(hdaObj)
Description
isConnected(hdaObj)
returns
true
if the OPC HDA Client object hdaObj
is connected to an OPC HDA server, and false
otherwise.
If hdaObj
is an array, isConnected
returns
an array the same size as hdaObj
, containing
true
where that respective element of
hdaObj
is connected to a server and false
otherwise.
Examples
Create an HDA client for the Matrikon™ Simulation Server and connect to the server:
hdaObj = opchda('localhost', 'Matrikon.OPC.Simulation'); connect(hdaObj);
Check the status of the connection:
tf = isConnected(hdaObj)
Version History
Introduced in R2011a