public async Task<PLCWaitResult> WaitResponseTags(Item[] tags, CancellationToken cancelToken)
{
PLCWaitResult plcResult = null;
try
{
if (opcServer != null && opcURL != null)
{
opcServer.Connect(new Opc.URL(opcURL), new Opc.ConnectData(new System.Net.NetworkCredential()));
if (opcServer.IsConnected)
{
bool eventChange = false;
do
{
await Task.Delay(1000);
var results = ((Opc.Da.IServer)opcServer).Read(tags);
if (IsResultsPassed(results))
{
eventChange = true;
plcResult = new PLCWaitResult
{
Value = true,
Message = "OK",
Status = 1
};
}
} while (!eventChange);
return plcResult;
}
else
{
throw new Exception("OPC server not connected");
}
}
return plcResult;
}
catch (Exception ex)
{
return plcResult;
}
finally
{
opcServer.Disconnect();
opcServer.Dispose();
}
}
public async Task<PLCWaitResult> WaitReadRUTags(Item[] tags, CancellationToken cancelToken)
{
PLCWaitResult plcResult = null;
try
{
if (opcServer != null && opcURL != null)
{
opcServer.Connect(opcURL, new Opc.ConnectData(new System.Net.NetworkCredential()));
if (opcServer.IsConnected)
{
bool eventChange = false;
do
{
await Task.Delay(500);
var results = ((Opc.Da.IServer)opcServer).Read(tags);
var drv = Convert.ToBoolean(results[0].Value.ToString());
var pas = Convert.ToBoolean(results[1].Value.ToString());
if (drv && pas)
{
eventChange = true;
plcResult = new PLCWaitResult
{
Value = drv && pas,
Message = "OK",
Status = 1
};
}
} while (!eventChange);
return plcResult;
}
else
{
throw new Exception("OPC server not connected");
}
}
return plcResult;
}
catch (Exception ex)
{
return plcResult;
}
finally
{
opcServer.Disconnect();
opcServer.Dispose();
}
}
