Finding what UDT Data-Type an instance of that type is

Ignition
,
1

What sciript can we use to figure out what parent data type?

The system.tag.getConfiguration() doesn’t seem to give me that information for this specific instance of a UDT:


# This example will get the configuration of a single tag
 
# Update the path here with the tag path you're trying to reach
path = '[UGC_Upstream]Emerson Series 107 Program 2/FCB 7403/2ND AFTERFLOW'
 
# Get the configurations
tags = system.tag.getConfiguration(path)
 
for tagDict in tags:
     
    # Iterate over the dictionary with the iteritems function
    for key, value in tagDict.iteritems():
         
        # Do something with the keys and values
        print key, ' : ', value

historyEnabled : True
dataType : Float4
historyProvider : Ignition_Utah_Oil_and_Gas_Corp_DB
path : [UGC_Upstream]Emerson Series 107 Program 2/FCB 7403/2ND AFTERFLOW
opcItemPath : {bindType=parameter, binding={Meter_Name}.SOFT_POINT.DATA_17:4}
tagType : AtomicTag
name : 2ND AFTERFLOW
opcServer : UGC_RRG_AUTOSOL_DB
engUnit : psi
valueSource : opc

2

Can you add a property to the UDT and put the name into that? Then read that out?

3

Sure. But I’m just wondering if there is a specific function that I’m missing that actually returns that

4

system.tag.readBlocking(["[default]path/to/tag.typeId"])

4 Likes
5

If you read the Tag + ‘.UDTParentType’ it will return the UDT Type.

#Tagpath must be the main UDT TagPath
system.tag.readBlocking([tagPath+ '.UDTParentType'])
2 Likes
6

Here is how I did it if anyone need a quick full code. When I tried calling the system.tag.readBlocking function, using the UDT path does not work and I get a null. The full tag path is needed for this type of code:

def runAction(self, event):
	system.perspective.print("Process Started")
	
	path = "You tag/ UDT path"
	browse = system.tag.browse(path, filter={"recursive":True})
	
	for tagBrowse in browse:
		fullPath = tagBrowse['fullPath']
		configs = system.tag.getConfiguration(fullPath, False)
		for config in configs:
			try:
				system.perspective.print(tagBrowse)
				system.perspective.print("------------------------------------------------------------------------------------------------")
				system.perspective.print(system.tag.readBlocking(str(fullPath) + ".typeId")[0].value)
			except:
				pass
			break
		break
#				system.perspective.print(system.tag.readBlocking("[Maverick]STX/CGF/CARLA_CGFB/COMPRESSORS/COMPRESSOR_02/CAE_5020_COMP/DIGITAL_VALUE.LongID"))

	system.perspective.print("Process Finished")

I put the broad try/except there due to how something are set up in the system we have but you may not need that. Also the breaks are there so I did not have to see multiple UDTs/tags. It is not needed.

Also, you may not need even need the configs function now that I am looking at this again. This is a basic set up for me to get into the configs based on what I need i can put more logic...I hope its helpful as well.

Edit and Update:
I had to change up the code a bit in the program I made. Its a CSV file tag or UDT parameter file creator. In short It is similar to the Tag report tool, but as of now the Ignition report tool outputs a CSV file of tag that has missing tags path and info.

That said, on this properties function for tags I had to use the UDT's path and not the tag path. Here is how I got it to work in the function:

		elif parameter == "typeId":
			TypeIDPath = str(browse['fullPath']).rsplit("/",1)[0] + "." + parameter
			typeID = system.tag.readBlocking(TypeIDPath)[0].value
			RowDataToAdd.append(str(typeID))