# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?page=15 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 16 --- ## [OPC-UA client - Subscription ok in Ignition but not present in OPC-UA server](https://forum.inductiveautomation.com/t/opc-ua-client-subscription-ok-in-ignition-but-not-present-in-opc-ua-server/48003)
**Author:** [@chi](https://forum.inductiveautomation.com/u/chi)\ **Replies:** 25\ **Last updated:** [August 7, 2026, 3:13pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-subscription-ok-in-ignition-but-not-present-in-opc-ua-server/48003 "2026-08-07T15:13:46Z")
I have a strange problem with Ignition’s OPC-UA client. Some tags stop updating after working for some days. In the diagnostics i can see that Ignition thinks it has a subscription, but that subscription ist not present … --- ## [Map onDoubleClick and Security Level on Map Subsections](https://forum.inductiveautomation.com/t/map-ondoubleclick-and-security-level-on-map-subsections/116697)
**Author:** [@isaac2](https://forum.inductiveautomation.com/u/isaac2)\ **Replies:** 1\ **Last updated:** [August 7, 2026, 2:40pm UTC](https://forum.inductiveautomation.com/t/map-ondoubleclick-and-security-level-on-map-subsections/116697 "2026-08-07T14:40:04Z")
Hi everyone, I'm working with the Perspective Map component in Ignition and I'm looking for the best approach to implement security on different sections of a province. I have a single province that is divided into fou… --- ## [Core Historian vs Canary/Factry for large multi-site systems? Looking for architecture recommendations](https://forum.inductiveautomation.com/t/core-historian-vs-canary-factry-for-large-multi-site-systems-looking-for-architecture-recommendations/116668)
**Author:** [@gpellicelli](https://forum.inductiveautomation.com/u/gpellicelli)\ **Replies:** 3\ **Last updated:** [August 7, 2026, 1:15pm UTC](https://forum.inductiveautomation.com/t/core-historian-vs-canary-factry-for-large-multi-site-systems-looking-for-architecture-recommendations/116668 "2026-08-07T13:15:44Z")
Hi everyone, We're currently designing a new Ignition 8.3 system for a fairly large industrial customer, and I'm trying to determine the best long-term historian architecture. The project will initially have around 5,0… --- ## [Showing popups below the breadcrumbs](https://forum.inductiveautomation.com/t/showing-popups-below-the-breadcrumbs/116695)
**Author:** [@nayanika.k](https://forum.inductiveautomation.com/u/nayanika.k)\ **Replies:** 1\ **Last updated:** [August 7, 2026, 12:59pm UTC](https://forum.inductiveautomation.com/t/showing-popups-below-the-breadcrumbs/116695 "2026-08-07T12:59:25Z")
Hi, I implemented a breadcrumb (e.g. zone \> line 1 \> screen 1) and when i hover over zone or line 1 of the breadcrumb I'm able to open a pop up to show what are the next available screens to navigate to. Currently I'm a… --- ## [\[RESOLVED\] "An alarm could not be acknowledged. It may no longer be registered."](https://forum.inductiveautomation.com/t/resolved-an-alarm-could-not-be-acknowledged-it-may-no-longer-be-registered/108459)
**Author:** [@Craig\_Rathbone](https://forum.inductiveautomation.com/u/Craig_Rathbone)\ **Replies:** 4\ **Last updated:** [August 7, 2026, 7:38am UTC](https://forum.inductiveautomation.com/t/resolved-an-alarm-could-not-be-acknowledged-it-may-no-longer-be-registered/108459 "2026-08-07T07:38:22Z")
Hi, we had an edge system crash and on restoration we some alarm on the master system that are no longer on the edge but we can't clear them from the alarm page (or by script) and we get a "An alarm could not be acknowl… --- ## [Showing historized string tags along with other numeric tags](https://forum.inductiveautomation.com/t/showing-historized-string-tags-along-with-other-numeric-tags/116694)
**Author:** [@jayachandran.m](https://forum.inductiveautomation.com/u/jayachandran.m)\ **Replies:** 3\ **Last updated:** [August 7, 2026, 7:23am UTC](https://forum.inductiveautomation.com/t/showing-historized-string-tags-along-with-other-numeric-tags/116694 "2026-08-07T07:23:49Z")
Hi, We would like to display two string tags in the Perspective Power Chart alongside the numeric process tags, as this would provide users with additional context and insights. I attempted to add the string tags; howev… --- ## [Event Streams to Kafka: the file-based config shapes, and five silent failure modes to know about](https://forum.inductiveautomation.com/t/event-streams-to-kafka-the-file-based-config-shapes-and-five-silent-failure-modes-to-know-about/116696)
**Author:** [@Aradh\_Suresh](https://forum.inductiveautomation.com/u/Aradh_Suresh)\ **Replies:** 0\ **Last updated:** [August 7, 2026, 7:01am UTC](https://forum.inductiveautomation.com/t/event-streams-to-kafka-the-file-based-config-shapes-and-five-silent-failure-modes-to-know-about/116696 "2026-08-07T07:01:33Z")
I have been running 8.3.8 Event Streams publishing to a Kafka-compatible cluster (Redpanda), authoring the streams as project files rather than in the Designer, and hit a few things worth sharing since I could not find t… --- ## [Dropdown props parameter](https://forum.inductiveautomation.com/t/dropdown-props-parameter/116683)
**Author:** [@grzegorz.kaczmarczy1](https://forum.inductiveautomation.com/u/grzegorz.kaczmarczy1)\ **Replies:** 5\ **Last updated:** [August 7, 2026, 6:25am UTC](https://forum.inductiveautomation.com/t/dropdown-props-parameter/116683 "2026-08-07T06:25:51Z")
Hi, is there an option to create a dropdown props parameter? interface parameter uses booleans and for proper functionality, you can only choose one. Dropdown here would be such a great feature. --- ## [Tag Browser Tree Showing Deleted Folders](https://forum.inductiveautomation.com/t/tag-browser-tree-showing-deleted-folders/116679)
**Author:** [@scadafan](https://forum.inductiveautomation.com/u/scadafan)\ **Replies:** 3\ **Last updated:** [August 7, 2026, 5:00am UTC](https://forum.inductiveautomation.com/t/tag-browser-tree-showing-deleted-folders/116679 "2026-08-07T05:00:58Z")
Hi there, I am having an issue with the Power Chart, I deleted a bunch of tags and folders, however even after rebooting Ignition those tags still exist on there. They have historian setup on them. Any idea what I need … --- ## [Core Historian Driving CPU to 80 - 100% Usage](https://forum.inductiveautomation.com/t/core-historian-driving-cpu-to-80-100-usage/116680)
**Author:** [@preston.cook](https://forum.inductiveautomation.com/u/preston.cook)\ **Replies:** 7\ **Last updated:** [August 7, 2026, 1:14am UTC](https://forum.inductiveautomation.com/t/core-historian-driving-cpu-to-80-100-usage/116680 "2026-08-07T01:14:19Z")
My company recently purchased Ignition, and I've been converting all the HMI's in our plant over. I recently received some complaints about lag and slowness. I looked at the performance dashboard and found the CPU Usage … --- ## [Potential Bug - Naming Folders After Deleted Views (Ignition 8.3.8)](https://forum.inductiveautomation.com/t/potential-bug-naming-folders-after-deleted-views-ignition-8-3-8/116686)
**Author:** [@eperiard](https://forum.inductiveautomation.com/u/eperiard)\ **Replies:** 5\ **Last updated:** [August 7, 2026, 12:16am UTC](https://forum.inductiveautomation.com/t/potential-bug-naming-folders-after-deleted-views-ignition-8-3-8/116686 "2026-08-07T00:16:23Z")
Hello, I believe I may have stumbled across a major potential bug, and I was hoping I could get some help with reversing its effects (if possible). The Skinny: I had a view in Perspective named "Trending" that acted as… --- ## [Alarm Status Ticker](https://forum.inductiveautomation.com/t/alarm-status-ticker/116685)
**Author:** [@SMac](https://forum.inductiveautomation.com/u/SMac)\ **Replies:** 4\ **Last updated:** [August 6, 2026, 8:05pm UTC](https://forum.inductiveautomation.com/t/alarm-status-ticker/116685 "2026-08-06T20:05:12Z")
Hi everyone, I'm working in Perspective V8.3+ and would like to display the latest alarm event/status in a banner or ticker-style component. The goal is to always show the most recent alarm, including information such … --- ## [Pipe link appears different in session vs preview](https://forum.inductiveautomation.com/t/pipe-link-appears-different-in-session-vs-preview/116378)
**Author:** [@Carleton\_Brown](https://forum.inductiveautomation.com/u/Carleton_Brown)\ **Replies:** 4\ **Last updated:** [August 6, 2026, 6:06pm UTC](https://forum.inductiveautomation.com/t/pipe-link-appears-different-in-session-vs-preview/116378 "2026-08-06T18:06:53Z")
I have a pipes configuration in a view of my perspective application where all of the links are configured the same with the exception they each look at a different bit of a status work for visibility. If the bit is tr… --- ## [Auto-expand Text Box Height in Monthly Report](https://forum.inductiveautomation.com/t/auto-expand-text-box-height-in-monthly-report/116618)
**Author:** [@rohiniksaradhya](https://forum.inductiveautomation.com/u/rohiniksaradhya)\ **Replies:** 5\ **Last updated:** [August 6, 2026, 4:07pm UTC](https://forum.inductiveautomation.com/t/auto-expand-text-box-height-in-monthly-report/116618 "2026-08-06T16:07:28Z")
Hi everyone, I am creating a monthly report in the Report Module. The report contains multiple rows, and the number of user entries varies each day. For a single day report, I can display the data without any issues. H… --- ## [How can I set up my Edge tags to work with my central server alarm pipeline?](https://forum.inductiveautomation.com/t/how-can-i-set-up-my-edge-tags-to-work-with-my-central-server-alarm-pipeline/116624)
**Author:** [@alexmohney](https://forum.inductiveautomation.com/u/alexmohney)\ **Replies:** 5\ **Last updated:** [August 6, 2026, 1:51pm UTC](https://forum.inductiveautomation.com/t/how-can-i-set-up-my-edge-tags-to-work-with-my-central-server-alarm-pipeline/116624 "2026-08-06T13:51:55Z")
Hi, I am setting up an alarm notification system that uses a set of Ignition Edge devices that collect tags from a controller and sends them to a central server for storage and visualization. I have the alarm notificatio… --- ## [MTP: Module Type Package Support in Ignition](https://forum.inductiveautomation.com/t/mtp-module-type-package-support-in-ignition/55543)
**Author:** [@s.widmer](https://forum.inductiveautomation.com/u/s.widmer)\ **Replies:** 8\ **Last updated:** [August 6, 2026, 11:43am UTC](https://forum.inductiveautomation.com/t/mtp-module-type-package-support-in-ignition/55543 "2026-08-06T11:43:28Z")
We are getting vaguely qualified mentions and requests from potential customers in the F&B and chem area - Is it something IA is looking into ? I just came across marketing material which looks very promising : https://… --- ## [Get Scrollbar position of a perspective component](https://forum.inductiveautomation.com/t/get-scrollbar-position-of-a-perspective-component/45307)
**Author:** [@jason.hood](https://forum.inductiveautomation.com/u/jason.hood)\ **Replies:** 2\ **Last updated:** [August 6, 2026, 9:06am UTC](https://forum.inductiveautomation.com/t/get-scrollbar-position-of-a-perspective-component/45307 "2026-08-06T09:06:39Z")
Hi, I am trying to get the scrollbar position of a perspective PDFViewer component. I have tried following a few other posts but they all pertain to vision components and I can’t get them to work for perspective. Why I … --- ## [How to create a report when a process of unknown duration finishes?](https://forum.inductiveautomation.com/t/how-to-create-a-report-when-a-process-of-unknown-duration-finishes/116677)
**Author:** [@dfox37](https://forum.inductiveautomation.com/u/dfox37)\ **Replies:** 2\ **Last updated:** [August 6, 2026, 6:41am UTC](https://forum.inductiveautomation.com/t/how-to-create-a-report-when-a-process-of-unknown-duration-finishes/116677 "2026-08-06T06:41:46Z")
This is a two-part question, one on triggering a report and the other on how to grab just the data I need. I've been asked to setup a historical trend on a report that starts when the process starts and ends when the pr… --- ## [SQL Express 2005 database connection ideas?](https://forum.inductiveautomation.com/t/sql-express-2005-database-connection-ideas/78728)
**Author:** [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Replies:** 21\ **Last updated:** [August 6, 2026, 4:18am UTC](https://forum.inductiveautomation.com/t/sql-express-2005-database-connection-ideas/78728 "2026-08-06T04:18:59Z")
I have two machines running SQL Express 2005 behind their FactoryTalk View Studio HMIs. The machines are software validated (medical device manufacturing environment) so I really don't want to mess with the configuration… --- ## [Best practice for using system.tag.tagQueryHistory](https://forum.inductiveautomation.com/t/best-practice-for-using-system-tag-tagqueryhistory/116638)
**Author:** [@mdemaris](https://forum.inductiveautomation.com/u/mdemaris)\ **Replies:** 6\ **Last updated:** [August 6, 2026, 2:58am UTC](https://forum.inductiveautomation.com/t/best-practice-for-using-system-tag-tagqueryhistory/116638 "2026-08-06T02:58:42Z")
Hi all, I am using a Time Series chart to display tag history information. The users would like to be able to see a wide time range as they look for anomalies, then zoom in with more data points for a better idea of wh… --- ## [Perspective, Designer selection in the wrong place](https://forum.inductiveautomation.com/t/perspective-designer-selection-in-the-wrong-place/116675)
**Author:** [@eaolson](https://forum.inductiveautomation.com/u/eaolson)\ **Replies:** 0\ **Last updated:** [August 5, 2026, 5:35pm UTC](https://forum.inductiveautomation.com/t/perspective-designer-selection-in-the-wrong-place/116675 "2026-08-05T17:35:10Z")
I've found some cases in the Designer when working on a Perspective screen and I select a component, the selection highlight is in the wrong place. I think it has to do with the component being inside a container that ha… --- ## [Diffing udts.json in tag-type-definition](https://forum.inductiveautomation.com/t/diffing-udts-json-in-tag-type-definition/116674)
**Author:** [@Noah\_Burnette](https://forum.inductiveautomation.com/u/Noah_Burnette)\ **Replies:** 0\ **Last updated:** [August 5, 2026, 5:25pm UTC](https://forum.inductiveautomation.com/t/diffing-udts-json-in-tag-type-definition/116674 "2026-08-05T17:25:10Z")
Hey everyone, I’m currently generating UDTs from an IO list, and the resulting udts.json has grown to about 56 MB. That file contains about 10 UDTs that I’d prefer to manage and diff independently. For example, if I mo… --- ## [Missing Scroll Bars in Flex containers](https://forum.inductiveautomation.com/t/missing-scroll-bars-in-flex-containers/116608)
**Author:** [@scourtney](https://forum.inductiveautomation.com/u/scourtney)\ **Replies:** 1\ **Last updated:** [August 5, 2026, 5:24pm UTC](https://forum.inductiveautomation.com/t/missing-scroll-bars-in-flex-containers/116608 "2026-08-05T17:24:00Z")
8.3.4 When nesting flex containers that need scroll bars, sometimes the designer stops displaying the scroll bars until the play button is pressed. Has anyone else experienced this or have a workaround? --- ## [Bad\_NotFound in tag properties](https://forum.inductiveautomation.com/t/bad-notfound-in-tag-properties/116626)
**Author:** [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Replies:** 12\ **Last updated:** [August 5, 2026, 3:15pm UTC](https://forum.inductiveautomation.com/t/bad-notfound-in-tag-properties/116626 "2026-08-05T15:15:35Z")
Ignition 8.3.8 , docker environment Hi everyone, When adding any tag from the Siemens S7-1500 PLC field, whether in an OPC-UA connection with a Siemens server or with the new Siemens Enhanced driver, the tag is connecte… --- ## [GCP Connectors, how are you getting your data into gcp?](https://forum.inductiveautomation.com/t/gcp-connectors-how-are-you-getting-your-data-into-gcp/116671)
**Author:** [@drewdin](https://forum.inductiveautomation.com/u/drewdin)\ **Replies:** 2\ **Last updated:** [August 5, 2026, 3:02pm UTC](https://forum.inductiveautomation.com/t/gcp-connectors-how-are-you-getting-your-data-into-gcp/116671 "2026-08-05T15:02:15Z")
I'm hoping to send data directly to Google Cloud Platform natively using ignition, are there any plans to have any modules or how are you currently getting your data into GCP? Looking for Pub Sub connectivity, didn't se… --- ## [Historian tag model for LPBF copper cold-plate validation runs](https://forum.inductiveautomation.com/t/historian-tag-model-for-lpbf-copper-cold-plate-validation-runs/116669)
**Author:** [@WalterChenComo](https://forum.inductiveautomation.com/u/WalterChenComo)\ **Replies:** 0\ **Last updated:** [August 5, 2026, 2:08pm UTC](https://forum.inductiveautomation.com/t/historian-tag-model-for-lpbf-copper-cold-plate-validation-runs/116669 "2026-08-05T14:08:55Z")
I am mapping how Ignition could be structured for validation runs on LPBF copper/CuCrZr cold plates. Each run would have inlet/outlet temperature, flow, pressure drop, pump command, ambient, part serial, fixture ID, and … --- ## [Git and tag definition files being deleted on gateway start](https://forum.inductiveautomation.com/t/git-and-tag-definition-files-being-deleted-on-gateway-start/116648)
**Author:** [@SBL\_MC](https://forum.inductiveautomation.com/u/SBL_MC)\ **Replies:** 9\ **Last updated:** [August 5, 2026, 1:51pm UTC](https://forum.inductiveautomation.com/t/git-and-tag-definition-files-being-deleted-on-gateway-start/116648 "2026-08-05T13:51:20Z")
Hi all, Regarding git and pushing changes from our development servers to production, hope someone can advise and help us with this. What we do: Stop the gateway Pull changes on the current branch, this meaning addin… --- ## [Perspective Popups not closing](https://forum.inductiveautomation.com/t/perspective-popups-not-closing/116664)
**Author:** [@Arr](https://forum.inductiveautomation.com/u/Arr)\ **Replies:** 2\ **Last updated:** [August 5, 2026, 1:40pm UTC](https://forum.inductiveautomation.com/t/perspective-popups-not-closing/116664 "2026-08-05T13:40:09Z")
Hi, In my application I have some confirm popups that close after clicking Cancel or Yes (2 seconds after clicking Yes and immediately after clicking Cancel). The fact is that sometimes the popup does not close after cl… --- ## [Power Chart flickers / shows "No Trend Data Source"](https://forum.inductiveautomation.com/t/power-chart-flickers-shows-no-trend-data-source/116455)
**Author:** [@dixithgowdar1998](https://forum.inductiveautomation.com/u/dixithgowdar1998)\ **Replies:** 4\ **Last updated:** [August 5, 2026, 1:05pm UTC](https://forum.inductiveautomation.com/t/power-chart-flickers-shows-no-trend-data-source/116455 "2026-08-05T13:05:56Z")
Power Chart keeps alternating between drawing the trend and showing "No Trend Data Source available. Please add Tags from the Tag Browser panel." The pen stays configured and checked. Happens in both Designer pre… --- ## [Datepicker keeps resetting to one day earlier](https://forum.inductiveautomation.com/t/datepicker-keeps-resetting-to-one-day-earlier/116663)
**Author:** [@Anita.Shinde](https://forum.inductiveautomation.com/u/Anita.Shinde)\ **Replies:** 5\ **Last updated:** [August 5, 2026, 12:56pm UTC](https://forum.inductiveautomation.com/t/datepicker-keeps-resetting-to-one-day-earlier/116663 "2026-08-05T12:56:53Z")
I’m working in Ignition 8.1.48 and have two options in my Perspective view: Header Control and Date Selection. When the Header Control radio button is selected, the Date Selection components are disabled, and vice‑versa… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?page=14) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?page=16)