# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=109 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 110 --- ## [MQTT vs Database Replication Architecture](https://forum.inductiveautomation.com/t/mqtt-vs-database-replication-architecture/112209)
**Author:** [@Eugene49](https://forum.inductiveautomation.com/u/Eugene49)\ **Replies:** 4\ **Last updated:** [November 18, 2025, 11:23pm UTC](https://forum.inductiveautomation.com/t/mqtt-vs-database-replication-architecture/112209 "2025-11-18T23:23:56Z")
Really, just a thought and thinking out loud. If database replication were already a thing, and very mature. Why do many of the architectures use MQTT to send data to cloud for analysis, why not use database to store d… --- ## [\[IGN-14835\] Weird Quirk in Gateway UI in Safari](https://forum.inductiveautomation.com/t/ign-14835-weird-quirk-in-gateway-ui-in-safari/112199)
**Author:** [@aaronrai24](https://forum.inductiveautomation.com/u/aaronrai24)\ **Replies:** 5\ **Last updated:** [November 18, 2025, 9:42pm UTC](https://forum.inductiveautomation.com/t/ign-14835-weird-quirk-in-gateway-ui-in-safari/112199 "2025-11-18T21:42:55Z")
Has anyone else experienced in Safari noticed the save changes button in the gateway being weird and clicking the button next too it? For me to click it I have to hover over the left part for it to highlight submit prope… --- ## [Tag Write Timestamp consistently lags actual time of write by about 7 seconds](https://forum.inductiveautomation.com/t/tag-write-timestamp-consistently-lags-actual-time-of-write-by-about-7-seconds/112238)
**Author:** [@AnirudhVelamore](https://forum.inductiveautomation.com/u/AnirudhVelamore)\ **Replies:** 5\ **Last updated:** [November 18, 2025, 9:22pm UTC](https://forum.inductiveautomation.com/t/tag-write-timestamp-consistently-lags-actual-time-of-write-by-about-7-seconds/112238 "2025-11-18T21:22:19Z")
I’m writing True to a particular Boolean tag at 10:14:45 and at 10:15:00 (as shown by the CurrentDateTime tag in the System tag provider). I would have expected the Timestamp of this Boolean tag to change to the same ti… --- ## [AlarmStateChecker - "Error checking alarms" message filling up Logs](https://forum.inductiveautomation.com/t/alarmstatechecker-error-checking-alarms-message-filling-up-logs/112203)
**Author:** [@jennifer.chang](https://forum.inductiveautomation.com/u/jennifer.chang)\ **Replies:** 2\ **Last updated:** [November 18, 2025, 8:57pm UTC](https://forum.inductiveautomation.com/t/alarmstatechecker-error-checking-alarms-message-filling-up-logs/112203 "2025-11-18T20:57:02Z")
Forgive me if this is obvious but I am not very familiar with python, and this is probably why I can’t figure out what this error is about and where it is caused. I am looking at the logs in my gateway and there is const… --- ## [Issue with Ignition Edge Perspective Session Limit](https://forum.inductiveautomation.com/t/issue-with-ignition-edge-perspective-session-limit/112258)
**Author:** [@bismaylla](https://forum.inductiveautomation.com/u/bismaylla)\ **Replies:** 2\ **Last updated:** [November 18, 2025, 6:29pm UTC](https://forum.inductiveautomation.com/t/issue-with-ignition-edge-perspective-session-limit/112258 "2025-11-18T18:29:04Z")
Hello, We recently purchased an Ignition Edge license. I’m experiencing issues regarding the number of available sessions with the license. Whenever I try to open the single available Perspective project in a web windo… --- ## [Duplicate Page in Reporting](https://forum.inductiveautomation.com/t/duplicate-page-in-reporting/94364)
**Author:** [@Steven\_Lee1](https://forum.inductiveautomation.com/u/Steven_Lee1)\ **Replies:** 3\ **Last updated:** [November 18, 2025, 5:16pm UTC](https://forum.inductiveautomation.com/t/duplicate-page-in-reporting/94364 "2025-11-18T17:16:41Z")
Hello, I am having a strange problem in the reporting module; my project browser shows only one page under my report but I am seeing a duplicate page 2 in the preview/actual report. Anyone know why this is? Steve … --- ## [Accessing Web Dev Mounted Resources (specifically images)](https://forum.inductiveautomation.com/t/accessing-web-dev-mounted-resources-specifically-images/112252)
**Author:** [@bmeyers](https://forum.inductiveautomation.com/u/bmeyers)\ **Replies:** 3\ **Last updated:** [November 18, 2025, 4:55pm UTC](https://forum.inductiveautomation.com/t/accessing-web-dev-mounted-resources-specifically-images/112252 "2025-11-18T16:55:44Z")
I have a web dev mounted folder called Photos pointing to a Folder Path I believe is in reference to where the Gateway is located. I have uploaded a single image there called A.png. On my image component I have the sour… --- ## [Jetty session timeout config for webdev http requests](https://forum.inductiveautomation.com/t/jetty-session-timeout-config-for-webdev-http-requests/112256)
**Author:** [@Jonathon\_Platt](https://forum.inductiveautomation.com/u/Jonathon_Platt)\ **Replies:** 1\ **Last updated:** [November 18, 2025, 4:48pm UTC](https://forum.inductiveautomation.com/t/jetty-session-timeout-config-for-webdev-http-requests/112256 "2025-11-18T16:48:00Z")
Hello We are using the webdev module to expose API endpoints - as of yet I have not been able to figure out where I can configure the session timeout in minutes for the Jetty server? (i.e. the equivalent of the userInac… --- ## [Script for changing PowerChart trends using a button?](https://forum.inductiveautomation.com/t/script-for-changing-powerchart-trends-using-a-button/112255)
**Author:** [@logan.h](https://forum.inductiveautomation.com/u/logan.h)\ **Replies:** 2\ **Last updated:** [November 18, 2025, 4:42pm UTC](https://forum.inductiveautomation.com/t/script-for-changing-powerchart-trends-using-a-button/112255 "2025-11-18T16:42:51Z")
Trying to configure a script to allow simple button navigation for changing the pen displayed on a PowerChart. Example being clicking the Current button will display Current values pulled from the historian, versus click… --- ## [Webhook Subscription](https://forum.inductiveautomation.com/t/webhook-subscription/112240)
**Author:** [@levi.medeiros](https://forum.inductiveautomation.com/u/levi.medeiros)\ **Replies:** 2\ **Last updated:** [November 18, 2025, 4:09pm UTC](https://forum.inductiveautomation.com/t/webhook-subscription/112240 "2025-11-18T16:09:41Z")
I’m trying to replicate the functionality of the attached payload subscribe.py file using ignition. Payload Subscribe.py (2.5 KB) I create a button in vision to replicate the subscription to web events. It calls this f… --- ## [Pass full component via params with an embedded view](https://forum.inductiveautomation.com/t/pass-full-component-via-params-with-an-embedded-view/112250)
**Author:** [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Replies:** 3\ **Last updated:** [November 18, 2025, 3:40pm UTC](https://forum.inductiveautomation.com/t/pass-full-component-via-params-with-an-embedded-view/112250 "2025-11-18T15:40:48Z")
Good morning, is possible to pass a component (in my case a perspective table) via params? I need to do this because I have this table in an embedded view and and outside I have an export button with a function that ta… --- ## [Keychain expressions in Text property](https://forum.inductiveautomation.com/t/keychain-expressions-in-text-property/112254)
**Author:** [@ron.deavers](https://forum.inductiveautomation.com/u/ron.deavers)\ **Replies:** 2\ **Last updated:** [November 18, 2025, 3:09pm UTC](https://forum.inductiveautomation.com/t/keychain-expressions-in-text-property/112254 "2025-11-18T15:09:51Z")
Within my report, I want to change any 0 to a “-”. However, I cannot get the keychain expression to work. Is this even possible on the Text property? @myKey=0?”-”:myKey@ --- ## [Named query returning empty dataset on table startup](https://forum.inductiveautomation.com/t/named-query-returning-empty-dataset-on-table-startup/112248)
**Author:** [@sanjanakrishnamurthy](https://forum.inductiveautomation.com/u/sanjanakrishnamurthy)\ **Replies:** 12\ **Last updated:** [November 18, 2025, 2:46pm UTC](https://forum.inductiveautomation.com/t/named-query-returning-empty-dataset-on-table-startup/112248 "2025-11-18T14:46:52Z")
Hi, So, I have a table in a popup which is supposed to receive the results of a named query, written on startup. I’m receiving an empty dataset but on testing the named query, it runs perfectly. Tried the query binding … --- ## [Add buttons in Table component header](https://forum.inductiveautomation.com/t/add-buttons-in-table-component-header/112230)
**Author:** [@TechEnlive](https://forum.inductiveautomation.com/u/TechEnlive)\ **Replies:** 5\ **Last updated:** [November 18, 2025, 1:32pm UTC](https://forum.inductiveautomation.com/t/add-buttons-in-table-component-header/112230 "2025-11-18T13:32:27Z")
Hi team, Is it possible to add a button/buttons in the table header? As we have Row# Order etc. --- ## [Reusing Script transfrom for charts](https://forum.inductiveautomation.com/t/reusing-script-transfrom-for-charts/112249)
**Author:** [@Alejandro\_Alaco](https://forum.inductiveautomation.com/u/Alejandro_Alaco)\ **Replies:** 4\ **Last updated:** [November 18, 2025, 1:03pm UTC](https://forum.inductiveautomation.com/t/reusing-script-transfrom-for-charts/112249 "2025-11-18T13:03:47Z")
Hello! It´s possible to reuse a binding or script transfrom for differents charts that only change a variable? I´ve got multiple charts, all of them have same binding and only change a custom property where I includ… --- ## [How to "chunk" large datasets?](https://forum.inductiveautomation.com/t/how-to-chunk-large-datasets/112202)
**Author:** [@mdemaris](https://forum.inductiveautomation.com/u/mdemaris)\ **Replies:** 4\ **Last updated:** [November 18, 2025, 6:26am UTC](https://forum.inductiveautomation.com/t/how-to-chunk-large-datasets/112202 "2025-11-18T06:26:01Z")
Hi all, I have a query returning 3000 plus rows and have the return format set to JSON, so I can use one embedded view (for styling purposes), displayed with the rest of the data. I keep getting a Message too big messa… --- ## [User Login Approach](https://forum.inductiveautomation.com/t/user-login-approach/112242)
**Author:** [@nolan.pratt](https://forum.inductiveautomation.com/u/nolan.pratt)\ **Replies:** 3\ **Last updated:** [November 17, 2025, 11:24pm UTC](https://forum.inductiveautomation.com/t/user-login-approach/112242 "2025-11-17T23:24:19Z")
I am wanting to introduce a programmatic approach to signing in a user using a proprietary login form I created in Perspective. I've set up the functionality to create a new account that ties the user credentials to a Us… --- ## [Historizing a large JSON string tag](https://forum.inductiveautomation.com/t/historizing-a-large-json-string-tag/17146)
**Author:** [@roger\_larson](https://forum.inductiveautomation.com/u/roger_larson)\ **Replies:** 3\ **Last updated:** [November 17, 2025, 10:42pm UTC](https://forum.inductiveautomation.com/t/historizing-a-large-json-string-tag/17146 "2025-11-17T22:42:36Z")
Hi all, I have a problem storing data from a tag containing a JSON string (or Python dictionary, if you will) within Ignition. Generally, the string exceeds the VARCHAR(255) character limit that is implemented in the t… --- ## [Create a Timemachine](https://forum.inductiveautomation.com/t/create-a-timemachine/112225)
**Author:** [@john.vanzijl](https://forum.inductiveautomation.com/u/john.vanzijl)\ **Replies:** 4\ **Last updated:** [November 17, 2025, 9:09pm UTC](https://forum.inductiveautomation.com/t/create-a-timemachine/112225 "2025-11-17T21:09:02Z")
Hi there, I want to create a kind of time machine. Basically a normal "current values” scada screen of an installation with temperatures and currents ect, not showing data from now, but from a time in the past. So I can… --- ## [Banner Wireless Gateway](https://forum.inductiveautomation.com/t/banner-wireless-gateway/112243)
**Author:** [@Kyle\_Young](https://forum.inductiveautomation.com/u/Kyle_Young)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 9:05pm UTC](https://forum.inductiveautomation.com/t/banner-wireless-gateway/112243 "2025-11-17T21:05:21Z")
Hello, I have a Banner DXM700-B1R1 Banner Gateway for receiving wireless signals from devices in the field. We have it elsewhere in the plant but it uses a Rockwell PLC to read in the data with a EDS file. Has anyone … --- ## [Issue with returnSize for system.historian.queryRawPoints()](https://forum.inductiveautomation.com/t/issue-with-returnsize-for-system-historian-queryrawpoints/112112)
**Author:** [@rberghammer](https://forum.inductiveautomation.com/u/rberghammer)\ **Replies:** 1\ **Last updated:** [November 17, 2025, 8:29pm UTC](https://forum.inductiveautomation.com/t/issue-with-returnsize-for-system-historian-queryrawpoints/112112 "2025-11-17T20:29:11Z")
The manual says returnSize parameter for system.historian.queryRawPoints() is “The maximum number of results to return”. When I set returnSize to anything greater than 0, the function returns an empty dataset. --- ## [Multiply Numeric Entry for Correct OPC Tag Value](https://forum.inductiveautomation.com/t/multiply-numeric-entry-for-correct-opc-tag-value/112208)
**Author:** [@warren](https://forum.inductiveautomation.com/u/warren)\ **Replies:** 10\ **Last updated:** [November 17, 2025, 6:53pm UTC](https://forum.inductiveautomation.com/t/multiply-numeric-entry-for-correct-opc-tag-value/112208 "2025-11-17T18:53:13Z")
I have a bunch of numeric fields on a project that are binded by Integer to OPC tags. On the HMI it may read, 15s, but on the PLC it reads 15ms. I can correct this all on the PLC side through basic MULT instructions. Is … --- ## [Bug: system.perspective.alterdock doesn't work correctly if more than 1 dock is defined](https://forum.inductiveautomation.com/t/bug-system-perspective-alterdock-doesnt-work-correctly-if-more-than-1-dock-is-defined/112235)
**Author:** [@Nol](https://forum.inductiveautomation.com/u/Nol)\ **Replies:** 1\ **Last updated:** [November 17, 2025, 4:47pm UTC](https://forum.inductiveautomation.com/t/bug-system-perspective-alterdock-doesnt-work-correctly-if-more-than-1-dock-is-defined/112235 "2025-11-17T16:47:42Z")
8.3 I have a dock mounted on the right called right\_faceplate, on it there are two buttons, small, and large, which execute this on click. With size either 500 or 800. The idea is to have a faceplate with the trend on i… --- ## [Transferring Tag Historian data to a new server](https://forum.inductiveautomation.com/t/transferring-tag-historian-data-to-a-new-server/112234)
**Author:** [@mr.davidmiller](https://forum.inductiveautomation.com/u/mr.davidmiller)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 4:47pm UTC](https://forum.inductiveautomation.com/t/transferring-tag-historian-data-to-a-new-server/112234 "2025-11-17T16:47:10Z")
On multiple occasions I have needed to integrate past tag history data into a new Ignition install after the new system has started historizing tag data. (New database and new Ignition but maintaining all the tag history… --- ## [Ignition Client Crash When Opening Serial Port Post OS Upgrade](https://forum.inductiveautomation.com/t/ignition-client-crash-when-opening-serial-port-post-os-upgrade/112231)
**Author:** [@Adil\_Hafiz](https://forum.inductiveautomation.com/u/Adil_Hafiz)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 4:05pm UTC](https://forum.inductiveautomation.com/t/ignition-client-crash-when-opening-serial-port-post-os-upgrade/112231 "2025-11-17T16:05:04Z")
In our Ignition application, we read data from a weight scale via the serial port. Recently, our IT department upgraded the Ignition client’s operating system to Windows 11. After the upgrade, the client fails to open th… --- ## [WebSocket connection errored out](https://forum.inductiveautomation.com/t/websocket-connection-errored-out/72694)
**Author:** [@dhananjay\_vichare](https://forum.inductiveautomation.com/u/dhananjay_vichare)\ **Replies:** 9\ **Last updated:** [November 17, 2025, 2:22pm UTC](https://forum.inductiveautomation.com/t/websocket-connection-errored-out/72694 "2025-11-17T14:22:06Z")
Hello, I am getting Web socket disconnected, Web socket connection errored out continuous error in gateway console log. Please help me to resolve these errors. We are using Ignition version 8.1.25 (b2023021409) Window… --- ## [Custom Fonts in Ignition 8.3](https://forum.inductiveautomation.com/t/custom-fonts-in-ignition-8-3/112156)
**Author:** [@Bruno\_Correa\_Otaegui](https://forum.inductiveautomation.com/u/Bruno_Correa_Otaegui)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 1:35pm UTC](https://forum.inductiveautomation.com/t/custom-fonts-in-ignition-8-3/112156 "2025-11-17T13:35:53Z")
Hello, I’m trying to add a custom font in Ignition 8.3 without success. I’ve created the custom font through API, resulting in the following resource.json and an empty “{}” config.json. Since that didn’t work, I’ve trie… --- ## [Performance Limits for 27,000+ Modbus TCP/IP Tags](https://forum.inductiveautomation.com/t/performance-limits-for-27-000-modbus-tcp-ip-tags/112224)
**Author:** [@andy.liu](https://forum.inductiveautomation.com/u/andy.liu)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 12:39pm UTC](https://forum.inductiveautomation.com/t/performance-limits-for-27-000-modbus-tcp-ip-tags/112224 "2025-11-17T12:39:18Z")
Hello Ignition Community, We are currently planning a new SCADA project utilizing Ignition, and we have some questions regarding the performance of large-scale Modbus communication. We would greatly appreciate any share… --- ## [Problem with border properties in table header with rotate(180deg)](https://forum.inductiveautomation.com/t/problem-with-border-properties-in-table-header-with-rotate-180deg/112095)
**Author:** [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 6:18am UTC](https://forum.inductiveautomation.com/t/problem-with-border-properties-in-table-header-with-rotate-180deg/112095 "2025-11-17T06:18:13Z")
Good afternoon, I have this problem with a perspective table and I have no idea how to solve it. Under columns.X.header.style I have set this properties { "title": "My header", "justify": "center", "align": "cen… --- ## [Tag reset value after service restart](https://forum.inductiveautomation.com/t/tag-reset-value-after-service-restart/112220)
**Author:** [@chentaoko](https://forum.inductiveautomation.com/u/chentaoko)\ **Replies:** 2\ **Last updated:** [November 17, 2025, 3:56am UTC](https://forum.inductiveautomation.com/t/tag-reset-value-after-service-restart/112220 "2025-11-17T03:56:30Z")
I’m using Ignition to monitor a specific tag, and an alarm is triggered when the value exceeds a certain threshold. The issue is that when I restart Ignition, it seems that the tag is briefly set to 0 before it re-reads … [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=108) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=110)