static void TagValueUpdated(ICommon.ITag sender, ICommon.TagValueUpdateEventArgs e)
{
LogixUDT logixUDT = sender as LogixUDT;
if (logixUDT != null)
{
PrintStructure(logixUDT);
}
}
static void TagValueUpdated(ICommon.ITag sender, ICommon.TagValueUpdateEventArgs e)
{
LogixUDT udtTag = sender as LogixUDT;
if (udtTag != null)
{
PrintStructure(udtTag);
}
}
static void TagValueUpdated(ICommon.ITag sender, ICommon.TagValueUpdateEventArgs e)
{
//Here we'll just display the name of the tag and that it was updated. If you
//want to extract the value you'll have to cast it to the correct type. You
//can do this by using a switch as shown below.
Console.WriteLine("Tag " + e.Tag.Address + " Updated");
switch (((LogixTag)sender).LogixType)
{
case LogixTypes.Bool:
Console.WriteLine("New value is: " + ((LogixBOOL)sender).Value.ToString());
break;
case LogixTypes.Control:
//The control tag is a lot more complicated, there is no way currently to know
//which member was updated, so all you can do is say it was updated, we'll print
//out one of the members though.
Console.WriteLine("New value is: " + ((LogixCONTROL)sender).POS.ToString());
break;
case LogixTypes.Counter:
//Same as the counter above, we'll just print out the ACC value
Console.WriteLine("New ACC value is: " + ((LogixCOUNTER)sender).ACC.ToString());
break;
case LogixTypes.DInt:
//Print out the value. DINT's are equivalent to int in .NET
Console.WriteLine("New DINT value is: " + ((LogixDINT)sender).Value.ToString());
break;
case LogixTypes.Int:
//An INT in a logix processor is more like a short in .NET
Console.WriteLine("New INT value is: " + ((LogixINT)sender).Value.ToString());
break;
case LogixTypes.LInt:
//LINT's are equivalent to long in .NET
Console.WriteLine("New LINT value is: " + ((LogixLINT)sender).Value.ToString());
break;
case LogixTypes.Real:
//REALs are single precision floats
Console.WriteLine("New REAL value is: " + ((LogixREAL)sender).Value.ToString());
break;
case LogixTypes.SInt:
//SINTs are signed bytes
Console.WriteLine("New SINT value is: " + ((LogixSINT)sender).Value.ToString());
break;
case LogixTypes.String:
//Strings are just like .NET strings, so notice how we can skip the .StringValue
//member, since the .ToString() will automatically be called, which returns the
//same value as .StringValue
Console.WriteLine("New STRING value is: " + ((LogixSTRING)sender));
break;
case LogixTypes.Timer:
//Timers again are like the CONTROL and COUNTER types
Console.WriteLine("New Timer.ACC value is: " + ((LogixTIMER)sender).ACC.ToString());
break;
case LogixTypes.User_Defined:
//The only way to get the value out of a UDT, PDT, or MDT is to define the
//structure or know the member name you wish to read. We'll just print that
//we know its a UDT, MDT, or PDT that changed.
Console.WriteLine("The user defined type has changed");
break;
default:
break;
}
}
