# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=997 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 998 --- ## [Java 'NoClassDefFound' Error when retargetting on client running Raspberry Pi OS](https://forum.inductiveautomation.com/t/java-noclassdeffound-error-when-retargetting-on-client-running-raspberry-pi-os/48315)
**Author:** [@bennuss11](https://forum.inductiveautomation.com/u/bennuss11)\ **Replies:** 3\ **Last updated:** [June 29, 2021, 8:22pm UTC](https://forum.inductiveautomation.com/t/java-noclassdeffound-error-when-retargetting-on-client-running-raspberry-pi-os/48315 "2021-06-29T20:22:06Z")
For machine HMI applications, we currently use ‘system.util.retarget’ in a startup script to switch to a setup app the first time a new HMI started (or client machine is replaced). This works fine for our windows PCs, bu… --- ## [Change Data Type in historian](https://forum.inductiveautomation.com/t/change-data-type-in-historian/48327)
**Author:** [@larryjones](https://forum.inductiveautomation.com/u/larryjones)\ **Replies:** 0\ **Last updated:** [June 29, 2021, 6:59pm UTC](https://forum.inductiveautomation.com/t/change-data-type-in-historian/48327 "2021-06-29T18:59:07Z")
I have some historized tags that have been configured with the wrong data type. I want to change them from floats to Bools and I want to update the historian data that has already been stored. The general approach I pl… --- ## [Is Ignition the Right Service for this Project](https://forum.inductiveautomation.com/t/is-ignition-the-right-service-for-this-project/48314)
**Author:** [@walkerrj10](https://forum.inductiveautomation.com/u/walkerrj10)\ **Replies:** 8\ **Last updated:** [June 29, 2021, 4:37pm UTC](https://forum.inductiveautomation.com/t/is-ignition-the-right-service-for-this-project/48314 "2021-06-29T16:37:49Z")
Hello! I have access to ignition through my work, and I’ve been given a project but I don’t know whether Ignition would be appropriate for it. Scope of Project: I need to create a system that will allow me to track bat… --- ## [Graphs: How to add a tick, where have come from these graphics in the video?](https://forum.inductiveautomation.com/t/graphs-how-to-add-a-tick-where-have-come-from-these-graphics-in-the-video/48303)
**Author:** [@bfernandez](https://forum.inductiveautomation.com/u/bfernandez)\ **Replies:** 4\ **Last updated:** [June 29, 2021, 4:33pm UTC](https://forum.inductiveautomation.com/t/graphs-how-to-add-a-tick-where-have-come-from-these-graphics-in-the-video/48303 "2021-06-29T16:33:10Z")
Hello everyone! Recently I have seen this video and I don't know how to add to my project the features they have implemented. I think it could be helpful for everyone if anyone knows how to do so. First, t… --- ## [Expose MQTT Tags for external access](https://forum.inductiveautomation.com/t/expose-mqtt-tags-for-external-access/48320)
**Author:** [@abi17124](https://forum.inductiveautomation.com/u/abi17124)\ **Replies:** 0\ **Last updated:** [June 29, 2021, 4:15pm UTC](https://forum.inductiveautomation.com/t/expose-mqtt-tags-for-external-access/48320 "2021-06-29T16:15:30Z")
Hello all, Hope you are doing well and thanks for taking time to help with my question. I currently have the Ignition Maker version setup with the CirrusLink MQTT server and transmitter modules, and I have 5 tags that a… --- ## [VOIP Voice Notification using Twilio](https://forum.inductiveautomation.com/t/voip-voice-notification-using-twilio/48317)
**Author:** [@dmachuca](https://forum.inductiveautomation.com/u/dmachuca)\ **Replies:** 0\ **Last updated:** [June 29, 2021, 3:25pm UTC](https://forum.inductiveautomation.com/t/voip-voice-notification-using-twilio/48317 "2021-06-29T15:25:32Z")
I am trying to use Twilio for Voice Notification. I have not been able to do so, does anyone here has experience doing this? I am thinking I have some configuration wrong on Twilio side. --- ## [Is it possbile to supply a tag binding to a property using a JSON object?](https://forum.inductiveautomation.com/t/is-it-possbile-to-supply-a-tag-binding-to-a-property-using-a-json-object/48306)
**Author:** [@daniele1](https://forum.inductiveautomation.com/u/daniele1)\ **Replies:** 1\ **Last updated:** [June 29, 2021, 3:12pm UTC](https://forum.inductiveautomation.com/t/is-it-possbile-to-supply-a-tag-binding-to-a-property-using-a-json-object/48306 "2021-06-29T15:12:33Z")
Hi, I have a table data to populate, each row as a label and 3 tag binding so I’m trying to find a fast way to do it. I create the frame of the data in a JSON object and copied it on the data property but now I have to… --- ## [Using the "Log On To" setting in Active Directory](https://forum.inductiveautomation.com/t/using-the-log-on-to-setting-in-active-directory/48316)
**Author:** [@Duffanator](https://forum.inductiveautomation.com/u/Duffanator)\ **Replies:** 0\ **Last updated:** [June 29, 2021, 3:11pm UTC](https://forum.inductiveautomation.com/t/using-the-log-on-to-setting-in-active-directory/48316 "2021-06-29T15:11:16Z")
Hey all, We are trying to give a generic user access to Ignition and in Active Directory that user is limited to login on specific PCs using the “Log On To” setting. However, when this setting is anything but “All compu… --- ## [\[FEATURE\] mix warm and cold device on a redundant gateway?](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275)
**Author:** [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Replies:** 4\ **Last updated:** [June 29, 2021, 2:27pm UTC](https://forum.inductiveautomation.com/t/feature-mix-warm-and-cold-device-on-a-redundant-gateway/48275 "2021-06-29T14:27:53Z")
we have a redundant gateway with Warm mode. We would like ti have some devices in “cold” mode and some device in “warm”. Is there any solution or workaround for this kind of settings ? Some device dosen’t accep more t… --- ## [isActive and isClear both true at the same time?](https://forum.inductiveautomation.com/t/isactive-and-isclear-both-true-at-the-same-time/42916)
**Author:** [@downerczx](https://forum.inductiveautomation.com/u/downerczx)\ **Replies:** 5\ **Last updated:** [June 29, 2021, 2:24pm UTC](https://forum.inductiveautomation.com/t/isactive-and-isclear-both-true-at-the-same-time/42916 "2021-06-29T14:24:09Z")
I can’t understand how this is a situation… the alarm is clearly below setpoint but remains active. There is no deadband or clear delay (seconds). --- ## [Key events not firing on Dropdown List component in Vision](https://forum.inductiveautomation.com/t/key-events-not-firing-on-dropdown-list-component-in-vision/47696)
**Author:** [@trusk](https://forum.inductiveautomation.com/u/trusk)\ **Replies:** 3\ **Last updated:** [June 29, 2021, 2:07pm UTC](https://forum.inductiveautomation.com/t/key-events-not-firing-on-dropdown-list-component-in-vision/47696 "2021-06-29T14:07:37Z")
It appears that the Dropdown List component is not firing on any key event. I am trying to use a keyTyped script to build a string to use in my query for the data binding. Simply writing a string to a test custom propert… --- ## [Perspective - on cell double click event on Table component?](https://forum.inductiveautomation.com/t/perspective-on-cell-double-click-event-on-table-component/48311)
**Author:** [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Replies:** 3\ **Last updated:** [June 29, 2021, 1:32pm UTC](https://forum.inductiveautomation.com/t/perspective-on-cell-double-click-event-on-table-component/48311 "2021-06-29T13:32:57Z")
I’d like to know what cell (row and column) a user double clicked on in a table. Is that possible? I basically want to let the user double click on a cell which will add the text to a filter so they can easily filter th… --- ## [How to invoke maria sql query using python system.db.runPrepQuery?](https://forum.inductiveautomation.com/t/how-to-invoke-maria-sql-query-using-python-system-db-runprepquery/48296)
**Author:** [@hewking32](https://forum.inductiveautomation.com/u/hewking32)\ **Replies:** 4\ **Last updated:** [June 29, 2021, 12:37pm UTC](https://forum.inductiveautomation.com/t/how-to-invoke-maria-sql-query-using-python-system-db-runprepquery/48296 "2021-06-29T12:37:49Z")
Hi All I am trying to invoke maria db sql query via python system.db.runPrepQuery but the query is a little more complex than usually. The query runs fine in maria db and it has 2 global parameters at the beginning whic… --- ## [Problem of duplicate user login to the system from different place at same time ( Limit User Access )](https://forum.inductiveautomation.com/t/problem-of-duplicate-user-login-to-the-system-from-different-place-at-same-time-limit-user-access/48199)
**Author:** [@tohhy-pm17](https://forum.inductiveautomation.com/u/tohhy-pm17)\ **Replies:** 7\ **Last updated:** [June 29, 2021, 12:34am UTC](https://forum.inductiveautomation.com/t/problem-of-duplicate-user-login-to-the-system-from-different-place-at-same-time-limit-user-access/48199 "2021-06-29T00:34:51Z")
Hi guys, I noticed that currently the same user account is able to login to the system from different place at the same time ? May I know that anything I can do to unable this features. Thanks in advance. --- ## [Log file directory listing and monitoring](https://forum.inductiveautomation.com/t/log-file-directory-listing-and-monitoring/48269)
**Author:** [@yves.morrissette](https://forum.inductiveautomation.com/u/yves.morrissette)\ **Replies:** 2\ **Last updated:** [June 28, 2021, 10:03pm UTC](https://forum.inductiveautomation.com/t/log-file-directory-listing-and-monitoring/48269 "2021-06-28T22:03:14Z")
Hi, I’m looking to monitor a specific directory that contains log files. I want to check the number of files that are present, as well as their dates and sizes. Is there a function for that? I was hoping to find someth… --- ## [How to transfer an image from an android smart scanner to a shared folder via Ignition?](https://forum.inductiveautomation.com/t/how-to-transfer-an-image-from-an-android-smart-scanner-to-a-shared-folder-via-ignition/48288)
**Author:** [@Sam.Naji](https://forum.inductiveautomation.com/u/Sam.Naji)\ **Replies:** 3\ **Last updated:** [June 28, 2021, 9:24pm UTC](https://forum.inductiveautomation.com/t/how-to-transfer-an-image-from-an-android-smart-scanner-to-a-shared-folder-via-ignition/48288 "2021-06-28T21:24:43Z")
We need to take a picture with our Android smart scanner, and we want to save it onto a shared folder. So how do we accomplish this task? --- ## [Suppress Error Message - Error writing to tag](https://forum.inductiveautomation.com/t/suppress-error-message-error-writing-to-tag/48287)
**Author:** [@johannes.bo](https://forum.inductiveautomation.com/u/johannes.bo)\ **Replies:** 6\ **Last updated:** [June 28, 2021, 9:09pm UTC](https://forum.inductiveautomation.com/t/suppress-error-message-error-writing-to-tag/48287 "2021-06-28T21:09:56Z")
Hi, This is a legit error, but I am searching for a way of handling this error in a custom way -not having Ignition bring up this default Error message. -Is it possible? This example is when using system.tag.write() … --- ## [Design hub and spoke for Perspective](https://forum.inductiveautomation.com/t/design-hub-and-spoke-for-perspective/48291)
**Author:** [@mojoeswa](https://forum.inductiveautomation.com/u/mojoeswa)\ **Replies:** 0\ **Last updated:** [June 28, 2021, 8:31pm UTC](https://forum.inductiveautomation.com/t/design-hub-and-spoke-for-perspective/48291 "2021-06-28T20:31:36Z")
Hi. Apologies in advance for the wall of text, but need some tips on building hub and spoke architecture for prospectivce. I have several spokes that will be connected to an Ignition project. Each spoke corresponds to … --- ## [Named Query Multiple Records](https://forum.inductiveautomation.com/t/named-query-multiple-records/48285)
**Author:** [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Replies:** 3\ **Last updated:** [June 28, 2021, 7:30pm UTC](https://forum.inductiveautomation.com/t/named-query-multiple-records/48285 "2021-06-28T19:30:04Z")
What would be the most efficient way to query multiple records using a named query? Say I have a table with an integer primary key and I want to get record 1, 6, and 14. It seems expensive to me to call the named query t… --- ## [File Not Saving with system.dataset.exportExcel](https://forum.inductiveautomation.com/t/file-not-saving-with-system-dataset-exportexcel/48284)
**Author:** [@grietveld](https://forum.inductiveautomation.com/u/grietveld)\ **Replies:** 2\ **Last updated:** [June 28, 2021, 7:09pm UTC](https://forum.inductiveautomation.com/t/file-not-saving-with-system-dataset-exportexcel/48284 "2021-06-28T19:09:44Z")
Is there a limit to columns/rows in the exportExcel function? I know what I have is within the limits of excel, but it is quite a few columns, but when I export this table, it seems to drop 0KB files and no errors. Func… --- ## [Siemens S7-300 Counter not writing](https://forum.inductiveautomation.com/t/siemens-s7-300-counter-not-writing/48245)
**Author:** [@paul.sikhakhane](https://forum.inductiveautomation.com/u/paul.sikhakhane)\ **Replies:** 4\ **Last updated:** [June 28, 2021, 7:00pm UTC](https://forum.inductiveautomation.com/t/siemens-s7-300-counter-not-writing/48245 "2021-06-28T19:00:33Z")
I am having an issue accessing S7-300 counters. I can access the Counter at offset 0 juts fine. I can read and write to the counter. The Ignition address for Counter 0 is \[S7\_300\]C0 But I cannot access Counter 2. Neithe… --- ## [Error launching Designer remotely with error java.nio.file.FileAlreadyExistsException](https://forum.inductiveautomation.com/t/error-launching-designer-remotely-with-error-java-nio-file-filealreadyexistsexception/40410)
**Author:** [@tamerplc](https://forum.inductiveautomation.com/u/tamerplc)\ **Replies:** 3\ **Last updated:** [June 28, 2021, 4:37pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-remotely-with-error-java-nio-file-filealreadyexistsexception/40410 "2021-06-28T16:37:28Z")
I set up 8.1 LTS version on one server and trying to open it from my PC which is connected to the server and getting the Below errors. But if I open a designer from the server itself it works fine. i got the below err… --- ## [\[FEATURE\] 8.1.7 Add tag changes into undo stack](https://forum.inductiveautomation.com/t/feature-8-1-7-add-tag-changes-into-undo-stack/48258)
**Author:** [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Replies:** 2\ **Last updated:** [June 28, 2021, 3:40pm UTC](https://forum.inductiveautomation.com/t/feature-8-1-7-add-tag-changes-into-undo-stack/48258 "2021-06-28T15:40:55Z")
I’m sure there’s already a ticket for this, but please add any tag changes into the undo stack, especially deletions. --- ## [Zooming within an Inline Frame?](https://forum.inductiveautomation.com/t/zooming-within-an-inline-frame/48278)
**Author:** [@Paul.Ahrens](https://forum.inductiveautomation.com/u/Paul.Ahrens)\ **Replies:** 0\ **Last updated:** [June 28, 2021, 2:59pm UTC](https://forum.inductiveautomation.com/t/zooming-within-an-inline-frame/48278 "2021-06-28T14:59:59Z")
I have a webpage I’d like to display with an inline frame that displays images captured from a vision system. The web server which I have no control over is forcing the web page to be a minimum size, which ends up in us… --- ## [Vision Report designer (Pie): how do I pass a dataset of segment colors? (no one?)](https://forum.inductiveautomation.com/t/vision-report-designer-pie-how-do-i-pass-a-dataset-of-segment-colors-no-one/48276)
**Author:** [@mcurland](https://forum.inductiveautomation.com/u/mcurland)\ **Replies:** 4\ **Last updated:** [June 28, 2021, 2:26pm UTC](https://forum.inductiveautomation.com/t/vision-report-designer-pie-how-do-i-pass-a-dataset-of-segment-colors-no-one/48276 "2021-06-28T14:26:05Z")
Creating a pie chart and want it to set the segment colors to a parameter that’s a dataset of colors. How do I do this? --- ## [Programmable Device Simulator - Variable value sources](https://forum.inductiveautomation.com/t/programmable-device-simulator-variable-value-sources/48273)
**Author:** [@sathianandan.dharmas](https://forum.inductiveautomation.com/u/sathianandan.dharmas)\ **Replies:** 1\ **Last updated:** [June 28, 2021, 1:02pm UTC](https://forum.inductiveautomation.com/t/programmable-device-simulator-variable-value-sources/48273 "2021-06-28T13:02:33Z")
Hi All I just had my revelation that Ignition has an in-built simulator and so excited to try it. I was wondering if there is a way to add a variable value source. So instead of having a ramp(0.0, 10.0, 100.0, true) as … --- ## [Best way to auto-logout user if they sign into another session](https://forum.inductiveautomation.com/t/best-way-to-auto-logout-user-if-they-sign-into-another-session/17052)
**Author:** [@dws2384](https://forum.inductiveautomation.com/u/dws2384)\ **Replies:** 12\ **Last updated:** [June 28, 2021, 10:40am UTC](https://forum.inductiveautomation.com/t/best-way-to-auto-logout-user-if-they-sign-into-another-session/17052 "2021-06-28T10:40:31Z")
Doing a search here appears there are a few suggestions on how to do the following: If a user is logged into a session and then signs into another session, would like to automatically log out the old/previous session. … --- ## [\[BUG\]Line Style property not worked for treeview component](https://forum.inductiveautomation.com/t/bug-line-style-property-not-worked-for-treeview-component/48265)
**Author:** [@guanghui](https://forum.inductiveautomation.com/u/guanghui)\ **Replies:** 0\ **Last updated:** [June 28, 2021, 10:24am UTC](https://forum.inductiveautomation.com/t/bug-line-style-property-not-worked-for-treeview-component/48265 "2021-06-28T10:24:23Z")
the angled line in treeview couldn’t be hidden even the line style property was setted to “None”. --- ## [\[BUG\]Component translations can not saved for Tabstrip Component](https://forum.inductiveautomation.com/t/bug-component-translations-can-not-saved-for-tabstrip-component/48264)
**Author:** [@guanghui](https://forum.inductiveautomation.com/u/guanghui)\ **Replies:** 0\ **Last updated:** [June 28, 2021, 10:20am UTC](https://forum.inductiveautomation.com/t/bug-component-translations-can-not-saved-for-tabstrip-component/48264 "2021-06-28T10:20:31Z")
When making tranlations for tabstrip component,once ‘back’ button on left-top conner was clicked and reenter the translation interface ,the translations for component lost . --- ## [Power table to to append second dataset](https://forum.inductiveautomation.com/t/power-table-to-to-append-second-dataset/48253)
**Author:** [@hewking32](https://forum.inductiveautomation.com/u/hewking32)\ **Replies:** 2\ **Last updated:** [June 28, 2021, 9:11am UTC](https://forum.inductiveautomation.com/t/power-table-to-to-append-second-dataset/48253 "2021-06-28T09:11:33Z")
Hi All I have Power table but 2 datasets as queries from various tables in the database. Any idea to to append the second dataset because at the moment it is overwriting the data displayed by the power table Thank a l… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=996) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=998)