} // end ProcessCommandLine
public void Terminate()
{
if (m_daSubscription.CurrentState != EnumObjectState.DISCONNECTED)
{
m_daSubscription.Disconnect(new ExecutionOptions());
}
if (m_daSession.CurrentState != EnumObjectState.DISCONNECTED)
{
m_daSession.Disconnect(new ExecutionOptions());
}
m_daSubscription.RemoveDaItem(m_daItem1);
m_daSubscription.RemoveDaItem(m_daItem2);
m_daSubscription.RemoveDaItem(m_daItem3);
m_daSession.RemoveDaSubscription(m_daSubscription);
GetApplication().RemoveDaSession(m_daSession);
GetApplication().Terminate();
m_daSession = null;
m_daSubscription = null;
m_daItem1 = null;
m_daItem2 = null;
m_daItem3 = null;
m_executionOptions = null;
m_itemList = null;
} // end Terminate
} // end Terminate
public int InitializeDaObjects()
{
int connectResult = (int)EnumResultCode.E_FAIL;
m_itemList = new MyDaItem[3];
m_executionOptions = new ExecutionOptions();
try
{
// TODO add your server URL here
// this is the server url for Softing OPCToolbox Demo Server
// first choice is COM-DA
string url = "opcda://localhost/Softing.OPCToolboxDemo_ServerDA/{2e565242-b238-11d3-842d-0008c779d775}";
//uncomment if you need an XML-DA access
// string url = "http://localhost:8079/OPC/DA";
m_daSession = new MyDaSession(url);
m_daSubscription = new MyDaSubscription(500, m_daSession);
m_daItem1 = new MyDaItem("maths.sin", m_daSubscription);
m_itemList[0] = m_daItem1;
m_daItem2 = new MyDaItem("time.local.second", m_daSubscription);
m_itemList[1] = m_daItem2;
m_daItem3 = new MyDaItem("increment.UI1", m_daSubscription);
m_itemList[2] = m_daItem3;
connectResult = m_daSession.Connect(true, false, m_executionOptions);
}
catch (Exception exc)
{
GetApplication().Trace(
EnumTraceLevel.ERR,
EnumTraceGroup.USER,
"OpcClient::InitializaDaObjects",
exc.ToString());
} // end try...catch
return(connectResult);
} // end InitializeDaObjects
//-----------------
public MyDaSubscription(uint updateRate, MyDaSession parentSession) : base(updateRate, parentSession)
{
}