System information

Table Of Contents
i.LON SmartServer 2.0 Programmer’s Reference
20-16
// -------------- WRITING A DATA POINT VALUE --------------
// reset the DP priority (see section 4.3.6 for more information)
iLON_SmartServer.Item_Coll itemCollInvoke = new iLON_SmartServer.Item_Coll();
itemCollInvoke.Item = new iLON_SmartServer.Item[1];
itemCollInvoke.Item[0] = new iLON_SmartServer.Dp_ResetPrio_Invoke();
((iLON_SmartServer.Dp_ResetPrio_Invoke)(itemCollInvoke.Item[0])).UCPTname =
"Net/LON/iLON App/Digital Output 1/nviClaValue_1";
((iLON_SmartServer.Dp_ResetPrio_Invoke)(itemCollInvoke.Item[0])).UCPTpriority = 200;
((iLON_SmartServer.Dp_ResetPrio_Invoke)(itemCollInvoke.Item[0])).UCPTprioritySpecified = true;
SmartServer.InvokeCmd(ref itemCollInvoke);
// set the DP priority to 200 (see section 4.3.7 for more information)
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTpriority = 200;
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTprioritySpecified = true;
// set 100.0 1 as the value
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTvalue = new iLON_SmartServer.E_LonString[1];
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTvalue[0] = new iLON_SmartServer.E_LonString();
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTvalue[0].Value = "100.0 1";
// to write a preset, do this (see section 4.3.5.2 for more information)
// dpData.UCPTvalue[0].LonFormat = "UCPTvalueDef";
// dpData.UCPTvalue[0].Value = "ON";
// call the write function
iLON_SmartServer.Item_Coll writeResp = SmartServer.Write(dataColl);
if (writeResp.Item == null)
{
// sanity check. this should not happen
Console.Out.WriteLine("No items were returned");
}
else if (writeResp.Item[0].fault != null)
{
// error
Console.Out.WriteLine("An error occurred. Fault code = "
+
writeResp.Item[0].fault.faultcode +
". Fault text = %s." +
writeResp.Item[0].fault.faultstring);
}
else
{
// success
Console.Out.WriteLine("Write is successful");
Console.Out.WriteLine(((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTname + " = " +
((iLON_SmartServer.Dp_Data)dataColl.Item[0]).UCPTvalue[0].Value);
}
Console.ReadLine();
}
finally
{
iLON_SoapCalls.CloseBindingToSmartServer();
}
}
}
}
20.3.2
Reading and Writing Data Point Values in Visual C# .NET 2.0
The following Visual C# .NET 2.0 example reads the value of the Net/LON/iLON App/Digital Output
1/nviClaValue_1 data point on the SmartServer, and then writes a value of “100.0 1” to it. This
SNVT_switch data point is one of the relay outputs on the SmartServer. You can execute this code