# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?page=328 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 329 --- ## [Historian DB Hammering Tags](https://forum.inductiveautomation.com/t/historian-db-hammering-tags/91699)
**Author:** [@Alex\_Leech](https://forum.inductiveautomation.com/u/Alex_Leech)\ **Replies:** 18\ **Last updated:** [September 26, 2024, 3:04pm UTC](https://forum.inductiveautomation.com/t/historian-db-hammering-tags/91699 "2024-09-26T15:04:54Z")
Hi all, I'm having an issue that despite being set to 'On Change' and the value of a tag seeminly not changing, its HAMMERING storing the same value in the database. Multiply this by 70000 tags and Houston, we have a p… --- ## [Tag Group Template by Site Type](https://forum.inductiveautomation.com/t/tag-group-template-by-site-type/96452)
**Author:** [@Taylor\_Bryson](https://forum.inductiveautomation.com/u/Taylor_Bryson)\ **Replies:** 4\ **Last updated:** [September 26, 2024, 2:24pm UTC](https://forum.inductiveautomation.com/t/tag-group-template-by-site-type/96452 "2024-09-26T14:24:34Z")
I am new to Ignition and have taken on the task of using the Ignition demo to try to make a partially working system as a proof of concept for my company. Currently using WonderWare and Aveva System Platform. I wanted t… --- ## [Ignition OPC UA Server Redundancy Config](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394)
**Author:** [@c.turmel](https://forum.inductiveautomation.com/u/c.turmel)\ **Replies:** 3\ **Last updated:** [September 26, 2024, 2:00pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394 "2024-09-26T14:00:59Z")
Hi all, I have configured an OPC UA server on my Primary ignition gateway wich followed automatically on the redondant server. I'm trying however to configure the non-transparent redundancy using the information I foun… --- ## [Query binding - query not found (Perspective)](https://forum.inductiveautomation.com/t/query-binding-query-not-found-perspective/96295)
**Author:** [@Thomas\_Spachinger](https://forum.inductiveautomation.com/u/Thomas_Spachinger)\ **Replies:** 7\ **Last updated:** [September 26, 2024, 1:35pm UTC](https://forum.inductiveautomation.com/t/query-binding-query-not-found-perspective/96295 "2024-09-26T13:35:17Z")
Hello, we just had a strange issue. After saving one query binding in perspective broke (the saving did not contain anything related to the binding). The named query is a simple select query with 2 params. After saving… --- ## [How to disable edit mode on a Perspective Table Cell](https://forum.inductiveautomation.com/t/how-to-disable-edit-mode-on-a-perspective-table-cell/52972)
**Author:** [@israel.jordan](https://forum.inductiveautomation.com/u/israel.jordan)\ **Replies:** 7\ **Last updated:** [September 26, 2024, 1:13pm UTC](https://forum.inductiveautomation.com/t/how-to-disable-edit-mode-on-a-perspective-table-cell/52972 "2024-09-26T13:13:19Z")
Hello All, I have a Perspective Table and I have enabled Column and Row selection on it. I have also made some of the columns editable. But in these columns, I only want a couple of the rows to be editable. I am using t… --- ## [Trigger a transaction group for all UDT instances](https://forum.inductiveautomation.com/t/trigger-a-transaction-group-for-all-udt-instances/96480)
**Author:** [@Mehdi\_MECHEDAL](https://forum.inductiveautomation.com/u/Mehdi_MECHEDAL)\ **Replies:** 1\ **Last updated:** [September 26, 2024, 12:17pm UTC](https://forum.inductiveautomation.com/t/trigger-a-transaction-group-for-all-udt-instances/96480 "2024-09-26T12:17:07Z")
Hello, I have the following UDT Definition in my gateway: I created two UDT instances in my teg provider: Question: Is it possible to set a transaction group that will be triggered if any of the activated tags cha… --- ## [Gateway crashes when loading alarm journal](https://forum.inductiveautomation.com/t/gateway-crashes-when-loading-alarm-journal/96478)
**Author:** [@Reghardt\_Swanepoel](https://forum.inductiveautomation.com/u/Reghardt_Swanepoel)\ **Replies:** 0\ **Last updated:** [September 26, 2024, 8:46am UTC](https://forum.inductiveautomation.com/t/gateway-crashes-when-loading-alarm-journal/96478 "2024-09-26T08:46:18Z")
I have a gateway that collects quite a few alarms from the factory (it's a process factory where everything is connected so it's all in one project). Using MySQL query I can see the count of alarm\_events is around 1 mill… --- ## [Perspective session login change without logging off session](https://forum.inductiveautomation.com/t/perspective-session-login-change-without-logging-off-session/95770)
**Author:** [@SHuidrom](https://forum.inductiveautomation.com/u/SHuidrom)\ **Replies:** 11\ **Last updated:** [September 26, 2024, 1:58am UTC](https://forum.inductiveautomation.com/t/perspective-session-login-change-without-logging-off-session/95770 "2024-09-26T01:58:35Z")
I have a requirement to change a login/elevate a login (eg. operator) on a perspective session to another login (eg. supervisor) on a single button click and then de-elevate the account (i.e. revert back to operator user… --- ## [Table Sorting Breaking \`event.rowIndex\`](https://forum.inductiveautomation.com/t/table-sorting-breaking-event-rowindex/96376)
**Author:** [@Colin\_Quinn](https://forum.inductiveautomation.com/u/Colin_Quinn)\ **Replies:** 5\ **Last updated:** [September 26, 2024, 4:08am UTC](https://forum.inductiveautomation.com/t/table-sorting-breaking-event-rowindex/96376 "2024-09-26T04:08:34Z")
Hi all, I'm running into an issue with getting an accurate row index when a user is interacting with a table. This table has both sorting and filtering enabled and I am able to access the filtered data with some code li… --- ## [No session found](https://forum.inductiveautomation.com/t/no-session-found/3782)
**Author:** [@SamJaimes](https://forum.inductiveautomation.com/u/SamJaimes)\ **Replies:** 9\ **Last updated:** [September 26, 2024, 3:53am UTC](https://forum.inductiveautomation.com/t/no-session-found/3782 "2024-09-26T03:53:35Z")
Hello! A few minutes ago I was bindind some components when I got an error. I tried to restart Ignition and now I recieve this: Exception: Error running query: Function binding query \[Alert History\]@5000ms On: Histo… --- ## [Can you do a system.opc.readvalue in Expression Editor](https://forum.inductiveautomation.com/t/can-you-do-a-system-opc-readvalue-in-expression-editor/96469)
**Author:** [@Joe\_Alcide](https://forum.inductiveautomation.com/u/Joe_Alcide)\ **Replies:** 3\ **Last updated:** [September 26, 2024, 3:50am UTC](https://forum.inductiveautomation.com/t/can-you-do-a-system-opc-readvalue-in-expression-editor/96469 "2024-09-26T03:50:11Z")
Hi! Is it possible to use system.opc.readvalue in an expression tag? How can I configure my opc connection to make it read from specific OPC server im using, thanks! --- ## [How to derive the tag path from an alarm event](https://forum.inductiveautomation.com/t/how-to-derive-the-tag-path-from-an-alarm-event/77664)
**Author:** [@David.Reed.Schmidt](https://forum.inductiveautomation.com/u/David.Reed.Schmidt)\ **Replies:** 6\ **Last updated:** [September 25, 2024, 11:51pm UTC](https://forum.inductiveautomation.com/t/how-to-derive-the-tag-path-from-an-alarm-event/77664 "2024-09-25T23:51:29Z")
Given an alarm event object. Is there a way to obtain the tag path from that alarm. My alarm comes from a tag and I can get the 'source' property and this has the tag provider and the alarm name. I simply want the tag pa… --- ## [Reading Tag Names](https://forum.inductiveautomation.com/t/reading-tag-names/96453)
**Author:** [@Joe\_Alcide](https://forum.inductiveautomation.com/u/Joe_Alcide)\ **Replies:** 8\ **Last updated:** [September 25, 2024, 11:28pm UTC](https://forum.inductiveautomation.com/t/reading-tag-names/96453 "2024-09-25T23:28:50Z")
Hi! I am looking to be able to read the name of a tag if its value meets a condition: Taglist = \[ "Tag 1", "Tag 2", "Tag 3", "Tag 4" \] Tag\_path2 = \[ "Tag 1", "Tag 2", "Tag 3", "Tag 4" \] Tag\_Read= sys… --- ## [Printing a label from a Zebra ZT230 using USB connection](https://forum.inductiveautomation.com/t/printing-a-label-from-a-zebra-zt230-using-usb-connection/72462)
**Author:** [@Raymond\_Sipes](https://forum.inductiveautomation.com/u/Raymond_Sipes)\ **Replies:** 23\ **Last updated:** [September 25, 2024, 10:54pm UTC](https://forum.inductiveautomation.com/t/printing-a-label-from-a-zebra-zt230-using-usb-connection/72462 "2024-09-25T22:54:19Z")
Hello all! I am having a hard time getting a Zebra ZT230 to print a barcode label from a Project script. I am using a slight variation of a script from a earlier post. I am getting this error: TypeError:'com.inducti… --- ## [S7-400 UDT STRING addressing](https://forum.inductiveautomation.com/t/s7-400-udt-string-addressing/96375)
**Author:** [@Attila\_Lazok](https://forum.inductiveautomation.com/u/Attila_Lazok)\ **Replies:** 4\ **Last updated:** [September 25, 2024, 10:14pm UTC](https://forum.inductiveautomation.com/t/s7-400-udt-string-addressing/96375 "2024-09-25T22:14:26Z")
Hello all, I am addressing a UDT in a Siemens S7-400 PLC. My Ignition UDT is working great with all other type of tags, but I am having Issues with getting a STRING tag to work. The Siemens UDT looks like this: The … --- ## [Any experience with connecting SEL to Ignition](https://forum.inductiveautomation.com/t/any-experience-with-connecting-sel-to-ignition/96441)
**Author:** [@Brian\_McClure](https://forum.inductiveautomation.com/u/Brian_McClure)\ **Replies:** 5\ **Last updated:** [September 25, 2024, 9:03pm UTC](https://forum.inductiveautomation.com/t/any-experience-with-connecting-sel-to-ignition/96441 "2024-09-25T21:03:13Z")
We are looking into switching vendors for our scada system and Ignition is high on our list. I am actually going through the intro course that is online just to get my feet wet. The DNP 3 section was very limited, and th… --- ## [Security levels and zone in new project](https://forum.inductiveautomation.com/t/security-levels-and-zone-in-new-project/96454)
**Author:** [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Replies:** 0\ **Last updated:** [September 25, 2024, 7:08pm UTC](https://forum.inductiveautomation.com/t/security-levels-and-zone-in-new-project/96454 "2024-09-25T19:08:04Z")
Good morning, I would kindly like some clarification regarding security levels and security zone to understand the feasibility of what I would like to implement. After reading and watching the videos, I still don’t have… --- ## [Where to find the .modl file for the IIoT Module](https://forum.inductiveautomation.com/t/where-to-find-the-modl-file-for-the-iiot-module/96443)
**Author:** [@face\_plant](https://forum.inductiveautomation.com/u/face_plant)\ **Replies:** 8\ **Last updated:** [September 25, 2024, 6:59pm UTC](https://forum.inductiveautomation.com/t/where-to-find-the-modl-file-for-the-iiot-module/96443 "2024-09-25T18:59:21Z")
Hello! I have an ignition edge instance that I would like to install the IIoT Module on. If I go into the Config tab and look at the Overview section, it says that the Ignition Edge IIoT module is available I then pr… --- ## [Vison Tab Strip does not navigate to the previously opened window](https://forum.inductiveautomation.com/t/vison-tab-strip-does-not-navigate-to-the-previously-opened-window/96447)
**Author:** [@cbanzet](https://forum.inductiveautomation.com/u/cbanzet)\ **Replies:** 7\ **Last updated:** [September 25, 2024, 6:22pm UTC](https://forum.inductiveautomation.com/t/vison-tab-strip-does-not-navigate-to-the-previously-opened-window/96447 "2024-09-25T18:22:08Z")
I am now on v8.1.43 having recently upgraded from v8.1.24. This was one of the issues I had hoped the upgrade would fix, but it didn't. My tab strip is set up in the traditional "Navigation North" way. It's on a docke… --- ## [Converting the values of a dataset to a JSON string in WebDev](https://forum.inductiveautomation.com/t/converting-the-values-of-a-dataset-to-a-json-string-in-webdev/96448)
**Author:** [@Noah\_Steele](https://forum.inductiveautomation.com/u/Noah_Steele)\ **Replies:** 1\ **Last updated:** [September 25, 2024, 6:08pm UTC](https://forum.inductiveautomation.com/t/converting-the-values-of-a-dataset-to-a-json-string-in-webdev/96448 "2024-09-25T18:08:26Z")
Hi there! I have a query tag that is querying a DB table and putting the values into a dataset, and I need to be able to convert this dataset to a JSON string so that I can make it accessible through WebDev via http doGe… --- ## [Failover Backup Gateway SSL Certificates](https://forum.inductiveautomation.com/t/failover-backup-gateway-ssl-certificates/96250)
**Author:** [@M.O](https://forum.inductiveautomation.com/u/M.O)\ **Replies:** 5\ **Last updated:** [September 25, 2024, 6:07pm UTC](https://forum.inductiveautomation.com/t/failover-backup-gateway-ssl-certificates/96250 "2024-09-25T18:07:12Z")
Ignition 8.1, issue is with mobile application but we have not been able to test this scenario with just a browser yet. We have installed SSL certificates on our Master gateway and Backup gateway. When connecting from t… --- ## [MariaDB NewConnection](https://forum.inductiveautomation.com/t/mariadb-newconnection/96446)
**Author:** [@Ha99](https://forum.inductiveautomation.com/u/Ha99)\ **Replies:** 3\ **Last updated:** [September 25, 2024, 5:41pm UTC](https://forum.inductiveautomation.com/t/mariadb-newconnection/96446 "2024-09-25T17:41:13Z")
Hi, I just installed the latest version of MariaDB 11.4.3 and I followed the procedure to update the jdbc driver JDBC Drivers and Translators | Ignition User Manual, except that I got an error, my connection is faulted: … --- ## [Is it possible to allow a user to select which table columns are shown?](https://forum.inductiveautomation.com/t/is-it-possible-to-allow-a-user-to-select-which-table-columns-are-shown/96325)
**Author:** [@mdemaris](https://forum.inductiveautomation.com/u/mdemaris)\ **Replies:** 15\ **Last updated:** [September 25, 2024, 5:32pm UTC](https://forum.inductiveautomation.com/t/is-it-possible-to-allow-a-user-to-select-which-table-columns-are-shown/96325 "2024-09-25T17:32:55Z")
This is a standard Vision table. I would like to allow users to select what columns they would like to see. By default I would like to have a handful, but if they need more information, they could select a few more. I… --- ## [Duplicate Tag](https://forum.inductiveautomation.com/t/duplicate-tag/3582)
**Author:** [@jay](https://forum.inductiveautomation.com/u/jay)\ **Replies:** 2\ **Last updated:** [September 25, 2024, 5:05pm UTC](https://forum.inductiveautomation.com/t/duplicate-tag/3582 "2024-09-25T17:05:29Z")
I would like a context menu option when right-clicking a tag in the SQLTags browser that duplicates a tag. This would make a copy of the selected tag AND automatically open the edit window. The tag would not be saved… --- ## [Random Lines on vision chart](https://forum.inductiveautomation.com/t/random-lines-on-vision-chart/96438)
**Author:** [@Brennan\_Joles](https://forum.inductiveautomation.com/u/Brennan_Joles)\ **Replies:** 4\ **Last updated:** [September 25, 2024, 5:05pm UTC](https://forum.inductiveautomation.com/t/random-lines-on-vision-chart/96438 "2024-09-25T17:05:17Z")
I am having an issue with some of my vision charts having random lines across the data. The data itself is correct but not being displayed properly. I have 12 charts on a screen, and they all have the same formatting on … --- ## [SQL Tag not an option](https://forum.inductiveautomation.com/t/sql-tag-not-an-option/96442)
**Author:** [@Elmer\_Sanchez](https://forum.inductiveautomation.com/u/Elmer_Sanchez)\ **Replies:** 2\ **Last updated:** [September 25, 2024, 5:01pm UTC](https://forum.inductiveautomation.com/t/sql-tag-not-an-option/96442 "2024-09-25T17:01:58Z")
Hello, I am trying to pull tags/data from a database but "SQL Tag" isn't an option in the tag browser. Is this an add-on that I have to purchase? The module is installed and I'm connected to the database. It actually s… --- ## [User roles mapping for an AD / Database user source](https://forum.inductiveautomation.com/t/user-roles-mapping-for-an-ad-database-user-source/96430)
**Author:** [@YF129701](https://forum.inductiveautomation.com/u/YF129701)\ **Replies:** 5\ **Last updated:** [September 25, 2024, 4:36pm UTC](https://forum.inductiveautomation.com/t/user-roles-mapping-for-an-ad-database-user-source/96430 "2024-09-25T16:36:48Z")
I'm trying to understand what the process is for saving user roles against an AD user. I have a fully fledged database model built out and tested for a Database user source that we've been using. Its very similar to what… --- ## [Perspective PowerChart doesn't show dots but line (display type scatter)](https://forum.inductiveautomation.com/t/perspective-powerchart-doesnt-show-dots-but-line-display-type-scatter/95625)
**Author:** [@tecnoeletronic](https://forum.inductiveautomation.com/u/tecnoeletronic)\ **Replies:** 6\ **Last updated:** [September 25, 2024, 4:29pm UTC](https://forum.inductiveautomation.com/t/perspective-powerchart-doesnt-show-dots-but-line-display-type-scatter/95625 "2024-09-25T16:29:39Z")
Hi, In a Perspective PowerChart how can I show only points (dots) without interpolation between them? I tried all the settings in Pen-Display, but I couldn't find a way to achieve this. --- ## [Gateway connection dropping out](https://forum.inductiveautomation.com/t/gateway-connection-dropping-out/96432)
**Author:** [@Adam\_Lyon](https://forum.inductiveautomation.com/u/Adam_Lyon)\ **Replies:** 12\ **Last updated:** [September 25, 2024, 4:13pm UTC](https://forum.inductiveautomation.com/t/gateway-connection-dropping-out/96432 "2024-09-25T16:13:25Z")
Our connection to the gateway keeps temporarily dropping out. In the designer, at the lower right corner, notifications that the gateway connection is lost, then restored are popping up about once a minute, sometimes mo… --- ## [Order views load and eliminating shadow embeds](https://forum.inductiveautomation.com/t/order-views-load-and-eliminating-shadow-embeds/96433)
**Author:** [@Zach\_Larson](https://forum.inductiveautomation.com/u/Zach_Larson)\ **Replies:** 1\ **Last updated:** [September 25, 2024, 4:12pm UTC](https://forum.inductiveautomation.com/t/order-views-load-and-eliminating-shadow-embeds/96433 "2024-09-25T16:12:04Z")
When using embeds, how do you eliminate components from being drawn before they are switched to the intended view appearance the best? I have some pages with embeds. They have expressions to determine which widgets wil… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?page=327) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?page=329)