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);
}
}
private static void PrintStructure(LogixUDT structureTag)
{
List <string> memberNames = structureTag.MemberNames;
Console.WriteLine("myUDT1 is a " + structureTag.TypeName + " with members:");
foreach (string mName in memberNames)
{
LogixTypes memberType = structureTag.GetTypeForMember(mName);
Console.WriteLine("\t" + mName + " : " + memberType.ToString() + " - Value: " + structureTag[mName].ToString());
}
}
/*
* HOW TO USE THIS SAMPLE
*
* 1. First change the hostNameOrIp to the IP address or host name of your PLC
* 2. Then change the path to be the path to your PLC, see comments below
* 3. Create a user defined type tag in your processor called myUDT1
* 4. Create an ALARM tag in your processor called myAlarm1
* 5. Run
*
*/
static void Main(string[] args)
{
//First we create the processor object. Typically the path is the slot
//number of the processor module in the backplane, but if your communications
//card is not in the same chassis as your processor, this is the path through
//the chassis to get to your processor. You will have to add a 1 for every
//chassis you go through, for example:
//Chassis 1: ENBT card in Slot 1 (slot is irrelavent), ControlNet Card in Slot 2
//Chassis 2: L61 in Slot 4
//Path would be: { 2, 1, 4 }
//Basically it's the target slot, 1 for backplane, target slot, 1 for backplane...
//until you get to the processor.
string hostNameOrIp = "192.168.1.10";
byte[] path = new byte[] { 1 };
LogixProcessor processor = new LogixProcessor(hostNameOrIp, path);
//The processor has to be connected before you add any tags or tag groups.
if (!processor.Connect())
{
Console.WriteLine("Could not connect to the processor");
Console.ReadKey(false);
return;
}
Console.WriteLine("6D Systems LLC\n\n");
//First create a group. Groups are much more efficient at reading and writing
//large numbers of tags or complex tags like UDTs.
LogixTagGroup myGroup = processor.CreateTagGroup("MyGroup");
//Ok, let's create the first tag which is some random user defined type
LogixTag genericTag = LogixTagFactory.CreateTag("myUDT1", processor);
LogixUDT udtTag = genericTag as LogixUDT;
if (udtTag == null)
{
Console.WriteLine("The tag 'myUDT1' on the processor is not a structure tag");
Console.WriteLine("Press any key to quit");
Console.ReadKey(false);
processor.Disconnect();
return;
}
//Let's print out some information about the UDT
PrintStructure(udtTag);
//The value of any member can also be set with the tagName[memberName] = value syntax
//Now let's get information about the alarm tag that was created...
LogixTag genericAlarm = LogixTagFactory.CreateTag("myAlarm1", processor);
LogixUDT alarmTag = genericAlarm as LogixUDT;
if (alarmTag == null)
{
Console.WriteLine("The tag 'myAlarm1' is not a structure tag");
Console.WriteLine("Press any key to quit");
Console.ReadKey(false);
processor.Disconnect();
return;
}
//Print out information about it...
PrintStructure(alarmTag);
//Now, let's set up the tags in the group, set the group to auto update, and watch
//for tag update events...
myGroup.AddTag(udtTag);
myGroup.AddTag(alarmTag);
udtTag.TagValueUpdated += new ICommon.TagValueUpdateEventHandler(TagValueUpdated);
alarmTag.TagValueUpdated += new ICommon.TagValueUpdateEventHandler(TagValueUpdated);
processor.EnableAutoUpdate(500);
Console.WriteLine("Press Enter to quit");
Console.ReadLine();
processor.Disconnect();
}
