Make pen name different than tag name from tag browser drag and drop

Ignition
,
1

Vision 7.9
When dragging and dropping tags from the tag browser to the pen list on an easy chart I don't get to edit the name. and because I use UDTs. All my tags have the same name. See below:

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image319×410 9.2 KB

Is there a way i can change the pen name from the designer permanently?

2

You will need to use Scripting. Take a look at the Scripting Functions User Manual Page for the component you are working with - Easy Chart - Scripting Functions | Ignition User Manual

There is an example script that demonstrates:

#This will take a tag that gets dropped from a Tag Browse Tree set in Realtime Tag Tree mode,
#and will replace the underscores in the name of the tag "_" and replace them with spaces.
3

I do this with custom properties on any tag that has history enabled.
Custom property: PenName

def customChartTagsDropped(self, paths):
	'''
		Add drag/dropped tag pen trend to easy chart from tag tree.
		
		Args:
			self			(Easy Chart obj)	:	Easy chart object where tag history pens are to be displayed.
			paths			(sting(s))			:	string (or list of string) tags to add to easy chart.
			
		Returns:
			n/a
			*self.tagPens	(dataset)			:	Easy chart "tagPens" property is updated to included the added tag pen
	'''
	
	#headers - for reference
	#headers = [	'NAME',					'TAG_PATH',				'AGGREGATION_MODE',	'AXIS',			'SUBPLOT',
	#				'ENABLED',				'COLOR',				'DASH_PATTERN',		'RENDER_STYLE',	'LINE_WEIGHT',
	#				'SHAPE',				'FILL_SHAPE',			'LABELS',			'GROUP_NAME',	'DIGITAL',
	#				'OVERRIDE_AUTOCOLOR',	'HIDDEN',				'USER_SELECTABLE',	'SORT_ORDER',	'USER_REMOVABLE'
	#			]
				
	#default row - configure as desired for default trend appearance
	defaultRow = [		'Name',				'[Provider]Path',		'Average',			'Default Axis',	1,
						True,				'color(255,0,0,255)',	'',					0,				1,
						0,					True,					False,				'',				False,
						False,				False,					True,				'',				True
				 ]
	
	#initialize empty tagPaths list
	tagPaths = []
	tagNamePaths = []
	
	#for each path in the list of dropped tags
	for path in paths:
	
		#build tag path from historic tag path. each tag provider is formatted as "area_xx" find the first occurance of the tag provider name
		pathStartIndex = path.find("area_")
		
		#check for tag in the default provider if the "area" provider is not found
		if pathStartIndex == -1:
			pathStartIndex = path.find("default")
		
		#make sure provider was found
		if pathStartIndex != -1:
		
			#get the tag path from the proivder to the end and format to read the custom PenName property from the tag
			tagPath = "["+path[pathStartIndex:]+'.PenName'
			tagNamePath = "["+path[pathStartIndex:]+'.Name'
			
			#add the tagPath to the list
			tagPaths.append(tagPath)
			tagNamePaths.append(tagNamePath)
			
		#tag provider not found, append empty string to keep accurate parallel lists
		else:
			tagPaths.append('')
			
	penNames = system.tag.readBlocking(tagPaths)
	tagNames = system.tag.readBlocking(tagNamePaths)
	
	
	#for each pen name in the list of read pen names
	for count, penName in enumerate(penNames):
	
		#skip any tags where the provider was not found
		if tagPaths[count] != '':
		
			#create default row
			newRow = defaultRow
			
			#if PenName custom prop does not exist or is empty
			if penName.quality.isBad() or penName.value is None or str(penName.value) == '':
			
				#assign tag name to row name
				newRow[0] = str(tagPaths[count].rsplit(']')[1][:-len('.PenName')])
				#newRow[0] = str(tagNames[count].value)
				
			#good PenName found
			else:
			
				#assign PenName to row name
				newRow[0] = str(penName.value)
				
			#assign history path to row path
			newRow[1] = paths[count]
			
			#update tagPens with the new row
			self.tagPens = system.dataset.addRow(self.tagPens, self.tagPens.rowCount, newRow)

You'll have to adjust this for your tag provider(s)

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