# Dynamically read tags inside of a UDT from a script **URL:** \ **Category:** Ignition\ **Tags:** scripting\ **Created:** [June 15, 2017, 6:51pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534 "2017-06-15T18:51:25Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![wfallon](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/wfallon/32/3773_2.png) [@wfallon](https://forum.inductiveautomation.com/u/wfallon)\ **Post date:** [June 15, 2017, 6:51pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/1 "2017-06-15T18:51:25Z")
Hi, I want to read tags in a UDT dynamically from a script. For example, if there are 4 tags in a UDT, I want to be able to put those in a list with the same code if there were 3. Thanks. ---
**Author:** ![DavidWisely](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/davidwisely/32/10482_2.png) [@DavidWisely](https://forum.inductiveautomation.com/u/DavidWisely)\ **Post date:** [June 15, 2017, 11:09pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/2 "2017-06-15T23:09:31Z")
Hi wfallon, Not quite sure what you are trying to do, but maybe this will help. It reads all tags in a folder or UDT and saves them to a dictionary. Just modify it to suit your needs. You just need to specify the folder path. ```auto # get a list of tags in the folder or UDT tags = system.tag.browseTags(parentPath=folder, recursive=1, sort='ASC') # Create a list of tag paths paths = [] for tag in tags: paths.append(tag.fullPath) # read the tags all at once vals = system.tag.readAll(paths) # store the values in a dictionary values = {} for x in range(len(paths)): length = len(paths[x]) - len(folder) name = str(paths[x])[-length:] # add each tag to a dictionary values[name] = vals[x].value ``` ---
**Author:** ![wfallon](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/wfallon/32/3773_2.png) [@wfallon](https://forum.inductiveautomation.com/u/wfallon)\ **Post date:** [June 16, 2017, 11:30am UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/3 "2017-06-16T11:30:34Z")
Thank you, this does what I need perfectly. ---
**Author:** ![amarks](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/amarks/32/45610_2.png) [@amarks](https://forum.inductiveautomation.com/u/amarks)\ **Post date:** [May 23, 2023, 7:56pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/4 "2023-05-23T19:56:56Z")
Now that `system.tag.browseTags()` is deprecated, I'm looking for a solution that uses the new `system.tab.browse()` function. I have a couple instances of a UDT and I want to reach all of the members via scripting. ---
**Author:** ![CalebM](https://avatars.discourse-cdn.com/v4/letter/c/71c47a/32.png) [@CalebM](https://forum.inductiveautomation.com/u/CalebM)\ **Post date:** [May 23, 2023, 8:25pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/5 "2023-05-23T20:25:04Z")
I believe this works the same as the one David provided, just changed it to use the new `system.tag.browse()` ```auto # Get a list of tags in the folder or UDT tags = system.tag.browse(folder, {"recursive":True, "tagType": "AtomicTag"}).getResults() # Create a list of tag paths paths = [] for tag in tags: paths.append(str(tag['fullPath'])) # read the tags all at once vals = system.tag.readBlocking(paths) #store the values in a dictionary values = {} for x in range(len(paths)): length = len(paths[x]) - len(folder) name = str(paths[x])[-length:] # add each tag to a dictionary values[name] = vals[x].value ``` ---
**Author:** ![amarks](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/amarks/32/45610_2.png) [@amarks](https://forum.inductiveautomation.com/u/amarks)\ **Post date:** [May 23, 2023, 8:40pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/6 "2023-05-23T20:40:31Z")
The syntax for `system.tag.browse()` is entirely different. But I don't actually need to use it in this case (yet). ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [May 23, 2023, 10:11pm UTC](https://forum.inductiveautomation.com/t/dynamically-read-tags-inside-of-a-udt-from-a-script/14534/7 "2023-05-23T22:11:34Z")
The `jsonValues` meta node works for folders and UDT instances and gives you an automatic recursive view of all the tags inside of a UDT: So from a structure like this: ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/3/438c5ccc07d6e4fab425d939794b5630051075b8.png) You can read the folder: ```python from pprint import pprint v = system.tag.readBlocking("[default]udts.jsonValues")[0].value pprint(v) ``` ```json { "beetles": { "george": 4, "john": 1, "paul": 2, "ringo": 3 }, "ducks": { "dewey": 3.14, "huey": 123, "louie": "abc" }, "family": { "folder": { "fourInstance": { "george": 4, "john": 1, "paul": 2, "ringo": 3 }, "threeInstance": { "dewey": 3.14, "huey": 123, "louie": "abc" } }, "fourInstance": { "george": 4, "john": 1, "paul": 2, "ringo": 3 }, "threeInstance": { "dewey": 3.14, "huey": 123, "louie": "abc" } } } ``` Or any UDT instance inside: ```python from pprint import pprint v = system.tag.readBlocking("[default]udts/beetles.jsonValues")[0].value pprint(v) ``` ```json { "george": 4, "john": 1, "paul": 2, "ringo": 3 } ```