# System.tag.configure() issues **URL:** \ **Category:** Ignition\ **Tags:** ignition81, scripting\ **Created:** [January 8, 2026, 9:00pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167 "2026-01-08T21:00:39Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Porter\_Ellis](https://avatars.discourse-cdn.com/v4/letter/p/ed8c4c/32.png) [@Porter\_Ellis](https://forum.inductiveautomation.com/u/Porter_Ellis)\ **Post date:** [January 8, 2026, 9:00pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/1 "2026-01-08T21:00:39Z")
I am attempting to write a script that can programmatically change the parameters of a folder full of UDT instances. I am running into an issue where the `system.tag.configure()` call is failing silently. Can someone with better knowledge of the internals help me fix the script? ```python devicesBase = "[049_Production]test/Devices" browseResults = system.tag.browse( path=devicesBase, filter={"tagType": "Folder"} ) folders = [str(r["fullPath"]) for r in browseResults.getResults()] print "Found", len(folders), "device subfolders" totalUpdated = 0 for folderPath in folders: # Get configs for THIS subfolder (recursive works here) nodes = system.tag.getConfiguration(folderPath, True) updated = 0 for item in nodes: for key, value in item.iteritems(): if key != "tags": continue for udtConfig in value: if str(udtConfig['tagType']) != 'UdtInstance': continue # ----------------------------- # PARAMETER UPDATE # ----------------------------- if 'parameters' not in udtConfig: continue params = udtConfig['parameters'] if 'PLCDevice' not in params: continue # Read current value safely if str(params['PLCDevice'].value) != 'Receiving': continue # parameter replacement params['PLCDevice'] = { 'dataType': 'String', 'value': 'SPBG_049REC' } print "Updating PLCDevice for", udtConfig['name'], "to SPBG_049REC" updated += 1 totalUpdated += 1 # Write once per folder if needed if updated > 0: system.tag.configure(folderPath, nodes, "m") print "Updated", updated, "instances in", folderPath print "TOTAL PLCDevice updates:", totalUpdated ``` ---
**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\ **Post date:** [January 9, 2026, 3:09am UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/2 "2026-01-09T03:09:55Z")
What is the error you get from the console/gateway logs? ---
**Author:** ![drewdin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/drewdin/32/3363_2.png) [@drewdin](https://forum.inductiveautomation.com/u/drewdin)\ **Post date:** [January 9, 2026, 4:03am UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/3 "2026-01-09T04:03:22Z")
add more print statements to the log and watch its progress. Like David mentioned, are there any errors in the gateway logs? ---
**Author:** ![tgarrison](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tgarrison/32/80965_2.png) [@tgarrison](https://forum.inductiveautomation.com/u/tgarrison)\ **Post date:** [January 9, 2026, 12:50pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/4 "2026-01-09T12:50:21Z")
Agreed. Add more print statements. Are you SURE it's getting into the if updated \> 0: condition? ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [January 9, 2026, 1:26pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/5 "2026-01-09T13:26:04Z")
Avoid `print`. Use a logger. In gateway scope, `print` doesn't go to the logs visible from the gateway Web UI, but only to the wrapper log text file. ---
**Author:** ![bkarabinchak.psi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bkarabinchak.psi/32/83567_2.png) [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Post date:** [January 9, 2026, 1:59pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/6 "2026-01-09T13:59:31Z")
Plus you can name your logger, do different levels like info/error/debug, and filter on both of these items. ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [January 9, 2026, 5:19pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/7 "2026-01-09T17:19:57Z")
> [@Porter\_Ellis](#): > > `system.tag.configure()` call is failing silently You're not checking its return either. I'd start with that. ---
**Author:** ![Porter\_Ellis](https://avatars.discourse-cdn.com/v4/letter/p/ed8c4c/32.png) [@Porter\_Ellis](https://forum.inductiveautomation.com/u/Porter_Ellis)\ **Post date:** [January 9, 2026, 10:12pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-issues/113167/8 "2026-01-09T22:12:51Z")
I found the solution. I wasn’t setting the `udtConfig['parameters'] = params` after changing the internals of the dictionary. The examples from the website and help from a coworker got me the answer. On a sidenote to this, does `system.tag.getConfiguration()` get a revamp in Ignition 8.3? # ```python -------------------------------------- CONFIG -------------------------------------- devicesBase = "[049_Production]test/Devices" -------------------------------------- BROWSE DEVICE SUBFOLDERS (ONCE) -------------------------------------- browseResults = system.tag.browse( path=devicesBase, filter={"tagType": "Folder"} ) folders = [str(r["fullPath"]) for r in browseResults.getResults()] print "Found", len(folders), "device subfolders" -------------------------------------- PROCESS EACH SUBFOLDER -------------------------------------- totalUpdated = 0 for folderPath in folders: # Get configs for THIS subfolder (recursive works here) nodes = system.tag.getConfiguration(folderPath, True) updated = 0 # IA-style traversal for item in nodes: for key, value in item.iteritems(): if key != "tags": continue for udtConfig in value: if str(udtConfig['tagType']) != 'UdtInstance': continue # ----------------------------- # PARAMETER UPDATE # ----------------------------- if 'parameters' not in udtConfig: continue params = udtConfig['parameters'] if 'PLCDevice' not in params: continue # Read current value safely if str(params['PLCDevice'].value) != 'CIP': continue # 🔑 CORRECT parameter replacement DeviceID = str(params['DeviceID'].value) params = { "DeviceID": { "dataType": "String", "value": DeviceID }, "PLCDevice": { "dataType": "String", "value": 'SPBG_049CIP' } } udtConfig['parameters'] = params updated += 1 totalUpdated += 1 # Write once per folder if needed if updated > 0: system.tag.configure(devicesBase, nodes, "m") # ✅ FIXED print "Updated", updated, "instances in", folderPath print "TOTAL PLCDevice updates:", totalUpdated ```