# Latest **URL:** https://forum.inductiveautomation.com/latest.md?page=1286 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 1287 --- ## [Launching Win app from Client - how to ensure only once](https://forum.inductiveautomation.com/t/launching-win-app-from-client-how-to-ensure-only-once/5585)
**Author:** [@Pilotek](https://forum.inductiveautomation.com/u/Pilotek)\ **Replies:** 2\ **Last updated:** [October 5, 2020, 10:18pm UTC](https://forum.inductiveautomation.com/t/launching-win-app-from-client-how-to-ensure-only-once/5585 "2020-10-05T22:18:00Z")
Please is it possible to ensure that operator can launch only one Windows app from Client Viewer - some object with system.util.execute(\[SomeWindowsApp\])? --- ## [High trend of CPU and memory](https://forum.inductiveautomation.com/t/high-trend-of-cpu-and-memory/39368)
**Author:** [@felipe2010silva](https://forum.inductiveautomation.com/u/felipe2010silva)\ **Replies:** 2\ **Last updated:** [October 5, 2020, 10:08pm UTC](https://forum.inductiveautomation.com/t/high-trend-of-cpu-and-memory/39368 "2020-10-05T22:08:01Z")
Good morning, my name is Felipe. I have analyzed the ignition gateway daily and noticed that Ignition is consuming a lot of memory and the CPU trend is almost 100%, as shown in the image below. Analyzing the virtua… --- ## [Emulate devices](https://forum.inductiveautomation.com/t/emulate-devices/39389)
**Author:** [@mpervaiz](https://forum.inductiveautomation.com/u/mpervaiz)\ **Replies:** 3\ **Last updated:** [October 5, 2020, 9:09pm UTC](https://forum.inductiveautomation.com/t/emulate-devices/39389 "2020-10-05T21:09:34Z")
Is there a way to emulate a few devices (like an Allen Bradley device)? We want to emulate these devices in the same way like we have programmable simulator devices. --- ## [Unable to find script manager for project](https://forum.inductiveautomation.com/t/unable-to-find-script-manager-for-project/39140)
**Author:** [@jetwax](https://forum.inductiveautomation.com/u/jetwax)\ **Replies:** 1\ **Last updated:** [October 5, 2020, 8:15pm UTC](https://forum.inductiveautomation.com/t/unable-to-find-script-manager-for-project/39140 "2020-10-05T20:15:36Z")
Hi, I have a report that used to work, and no longer works. I don’t know what has changed. The problem is a pie chart, its data is placed into a dataset with a script. The script doesn’t seem to run. Its the only scrip… --- ## [Update Tables - relational databse](https://forum.inductiveautomation.com/t/update-tables-relational-databse/39385)
**Author:** [@steven.cox](https://forum.inductiveautomation.com/u/steven.cox)\ **Replies:** 5\ **Last updated:** [October 5, 2020, 7:32pm UTC](https://forum.inductiveautomation.com/t/update-tables-relational-databse/39385 "2020-10-05T19:32:47Z")
Hi all, Here again with a newbie basic question. I am sure I am making this much more complicated than it needs to be. If I have multiple tables,…to keep it simple i’ll say 2 tables. Users\_Table id\_user INTEGER use… --- ## [Inactivity logout question](https://forum.inductiveautomation.com/t/inactivity-logout-question/39110)
**Author:** [@roberto.camp](https://forum.inductiveautomation.com/u/roberto.camp)\ **Replies:** 4\ **Last updated:** [October 5, 2020, 7:28pm UTC](https://forum.inductiveautomation.com/t/inactivity-logout-question/39110 "2020-10-05T19:28:30Z")
Hei guys, Running Ignition 8.0.16. We have an IDP setup with our Ignition Server and Perspective applications, but I’m seeing something I don’t understand and I wonder if it can be fixed somehow. Basically: Logout wi… --- ## [HTTP ERROR 500 java.lang.NoClassDefFoundError](https://forum.inductiveautomation.com/t/http-error-500-java-lang-noclassdeffounderror/39379)
**Author:** [@patrick.garceau](https://forum.inductiveautomation.com/u/patrick.garceau)\ **Replies:** 3\ **Last updated:** [October 5, 2020, 4:23pm UTC](https://forum.inductiveautomation.com/t/http-error-500-java-lang-noclassdeffounderror/39379 "2020-10-05T16:23:08Z")
HTTP ERROR 500 java.lang.NoClassDefFoundError: com/inductiveautomation/ignition/gateway/web/components/LaunchLink$Applet The gateway is working, the designer is working, but unable to go to the gateway web page. Restart… --- ## [Unable to receive NaN or INFINITY value via SparkPlug](https://forum.inductiveautomation.com/t/unable-to-receive-nan-or-infinity-value-via-sparkplug/39376)
**Author:** [@justin.brzozoski](https://forum.inductiveautomation.com/u/justin.brzozoski)\ **Replies:** 1\ **Last updated:** [October 5, 2020, 3:44pm UTC](https://forum.inductiveautomation.com/t/unable-to-receive-nan-or-infinity-value-via-sparkplug/39376 "2020-10-05T15:44:16Z")
Some of our SparkPlug edge devices use float values of not-a-number (NaN) or infinity to indicate soft-fault conditions on individual metrics. The MQTT Engine module seems to receive and understand these values properly… --- ## [Docker Volumes for Persistent Gateway Data](https://forum.inductiveautomation.com/t/docker-volumes-for-persistent-gateway-data/39378)
**Author:** [@hodgins.e](https://forum.inductiveautomation.com/u/hodgins.e)\ **Replies:** 2\ **Last updated:** [October 5, 2020, 3:42pm UTC](https://forum.inductiveautomation.com/t/docker-volumes-for-persistent-gateway-data/39378 "2020-10-05T15:42:40Z")
I saw that Ignition has a docker image on docker hub (https://hub.docker.com/r/inductiveautomation/ignition) . Looks nice for testing possibly but was wondering if you can setup volumes to persist Gateway data? And also… --- ## [How to get Maker working on Mac with existing Ignition 8](https://forum.inductiveautomation.com/t/how-to-get-maker-working-on-mac-with-existing-ignition-8/35927)
**Author:** [@pdixon](https://forum.inductiveautomation.com/u/pdixon)\ **Replies:** 7\ **Last updated:** [October 5, 2020, 3:28pm UTC](https://forum.inductiveautomation.com/t/how-to-get-maker-working-on-mac-with-existing-ignition-8/35927 "2020-10-05T15:28:58Z")
I have Ignition 8.0.12 on my MacBook 10.14.6. I just downloaded Maker, followed the instructions in README.TXT, and the gateway is started. I cannot figure out how to get the gateway configuration or Designer open for M… --- ## [Alarm stuck in alarm viewer](https://forum.inductiveautomation.com/t/alarm-stuck-in-alarm-viewer/2493)
**Author:** [@RRNut](https://forum.inductiveautomation.com/u/RRNut)\ **Replies:** 7\ **Last updated:** [October 5, 2020, 2:58pm UTC](https://forum.inductiveautomation.com/t/alarm-stuck-in-alarm-viewer/2493 "2020-10-05T14:58:29Z")
Deleting a tag that has an active alarm causes it to be stuck in the alarm viewer. Not sure how to fix. --- ## [If combined condition](https://forum.inductiveautomation.com/t/if-combined-condition/39362)
**Author:** [@etlikmilos](https://forum.inductiveautomation.com/u/etlikmilos)\ **Replies:** 5\ **Last updated:** [October 5, 2020, 2:42pm UTC](https://forum.inductiveautomation.com/t/if-combined-condition/39362 "2020-10-05T14:42:46Z")
Hi all I try to learn the ignition script and I have a problem with IF and condition when I use combined condition it doesn’t work. if door==0 and automat==1: if value == 1 : time = time+1 system.tag.write('\[de… --- ## [Error display series chart ignition V8.1 RC1](https://forum.inductiveautomation.com/t/error-display-series-chart-ignition-v8-1-rc1/39367)
**Author:** [@duchung821](https://forum.inductiveautomation.com/u/duchung821)\ **Replies:** 0\ **Last updated:** [October 5, 2020, 12:05pm UTC](https://forum.inductiveautomation.com/t/error-display-series-chart-ignition-v8-1-rc1/39367 "2020-10-05T12:05:37Z")
Hi everybody. I am using Time Series Chart (Perspective), I get the display error as shown in the picture in V8.1 version. But in V8.01 version everything is fine. looking forward to receiving your help. Thanks very … --- ## [Remote Tags Error on Central Cloud Server](https://forum.inductiveautomation.com/t/remote-tags-error-on-central-cloud-server/39366)
**Author:** [@hiteshratd](https://forum.inductiveautomation.com/u/hiteshratd)\ **Replies:** 0\ **Last updated:** [October 5, 2020, 11:57am UTC](https://forum.inductiveautomation.com/t/remote-tags-error-on-central-cloud-server/39366 "2020-10-05T11:57:29Z")
I have two edge server which located on different plants. These two edge are connected with central ignition server via Remote tag provider but sometimes I am getting error when I browse tags on central server which is … --- ## [Table export to CSV - issue with output](https://forum.inductiveautomation.com/t/table-export-to-csv-issue-with-output/39115)
**Author:** [@valet81](https://forum.inductiveautomation.com/u/valet81)\ **Replies:** 2\ **Last updated:** [October 5, 2020, 11:13am UTC](https://forum.inductiveautomation.com/t/table-export-to-csv-issue-with-output/39115 "2020-10-05T11:13:02Z")
Hi all, I’ve tried to search in the forum but I couldn’t find the same topic, so here’s my question. I’m showing some values from a SQL server in a table. So far all good, all the data in SQL are right and the output … --- ## [\[BUG\] Perspective 8.0.16 dropdown text centering](https://forum.inductiveautomation.com/t/bug-perspective-8-0-16-dropdown-text-centering/39357)
**Author:** [@kgamble](https://forum.inductiveautomation.com/u/kgamble)\ **Replies:** 0\ **Last updated:** [October 5, 2020, 4:21am UTC](https://forum.inductiveautomation.com/t/bug-perspective-8-0-16-dropdown-text-centering/39357 "2020-10-05T04:21:57Z")
The minimum width for the value box in the perspective dropdown is 45px, so if you have a dropdown smaller than that, eventually after you select your new value, it will be too far to the left to be seen in the dropdown,… --- ## [Icons on Header aren't fully loading](https://forum.inductiveautomation.com/t/icons-on-header-arent-fully-loading/39343)
**Author:** [@mitchell-ACS](https://forum.inductiveautomation.com/u/mitchell-ACS)\ **Replies:** 3\ **Last updated:** [October 4, 2020, 11:15pm UTC](https://forum.inductiveautomation.com/t/icons-on-header-arent-fully-loading/39343 "2020-10-04T23:15:11Z")
On initial page load, the icons in my header only halfway load. Refreshing the page can fix the problem but it isn’t consistent. Is there a way to detect/trigger an icon reload? --- ## [Trying to write date with Concat function (tag.0)](https://forum.inductiveautomation.com/t/trying-to-write-date-with-concat-function-tag-0/39352)
**Author:** [@sammyjoe.gingras](https://forum.inductiveautomation.com/u/sammyjoe.gingras)\ **Replies:** 5\ **Last updated:** [October 4, 2020, 7:35pm UTC](https://forum.inductiveautomation.com/t/trying-to-write-date-with-concat-function-tag-0/39352 "2020-10-04T19:35:31Z")
Hi! i’m trying to concat dint to write a sting for date. All my tag are DINT. It work pretty well but the final string is: 1990.01.0.12.0. I dont understand why its not 1990.1.12… Why the final string add some random .0… --- ## [Cannot launch perspective view](https://forum.inductiveautomation.com/t/cannot-launch-perspective-view/39344)
**Author:** [@moli501](https://forum.inductiveautomation.com/u/moli501)\ **Replies:** 0\ **Last updated:** [October 4, 2020, 3:32am UTC](https://forum.inductiveautomation.com/t/cannot-launch-perspective-view/39344 "2020-10-04T03:32:16Z")
Hello All, I have a problem to launch perspective view from web page, it can be switch between design mode and preview mode, but if I tried to use “Launch Perspective\\Launch Session”, there was not my view page on web, … --- ## [Bug(?) - File Explorer Root Directory with Multiple Operating Systems](https://forum.inductiveautomation.com/t/bug-file-explorer-root-directory-with-multiple-operating-systems/39159)
**Author:** [@BryanB](https://forum.inductiveautomation.com/u/BryanB)\ **Replies:** 2\ **Last updated:** [October 3, 2020, 10:40pm UTC](https://forum.inductiveautomation.com/t/bug-file-explorer-root-directory-with-multiple-operating-systems/39159 "2020-10-03T22:40:59Z")
I’m using v8.0.16 Vision. It appears to me that the File Explorer Root Directory is only allowed to be changed to a new value if that directory exists on the development computer. For example, I can change the blank/emp… --- ## [Other Automation Forums?](https://forum.inductiveautomation.com/t/other-automation-forums/39337)
**Author:** [@dcamp1](https://forum.inductiveautomation.com/u/dcamp1)\ **Replies:** 3\ **Last updated:** [October 3, 2020, 9:23pm UTC](https://forum.inductiveautomation.com/t/other-automation-forums/39337 "2020-10-03T21:23:47Z")
Hello: I’m interested in joining other “Automation / IIOT” forums that would discuss a wide range of topics that are needed for this field. I work now in Oil & Gas so I would really love to belong to one that talks abo… --- ## [Change Dropdown Width](https://forum.inductiveautomation.com/t/change-dropdown-width/22809)
**Author:** [@Phil\_B](https://forum.inductiveautomation.com/u/Phil_B)\ **Replies:** 6\ **Last updated:** [October 2, 2020, 10:47pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-width/22809 "2020-10-02T22:47:40Z")
Hello, I have a dropdown component whose width is restricted in size. However the options for this dropdown are strings that are longer than the width of the drop. Is there a way to make the dropdown list wider? I just … --- ## [\[Bug-706\]8.1 - Filter property on Perspective Table results in looping render state](https://forum.inductiveautomation.com/t/bug-706-8-1-filter-property-on-perspective-table-results-in-looping-render-state/39332)
**Author:** [@kyle.demerath](https://forum.inductiveautomation.com/u/kyle.demerath)\ **Replies:** 1\ **Last updated:** [October 2, 2020, 10:43pm UTC](https://forum.inductiveautomation.com/t/bug-706-8-1-filter-property-on-perspective-table-results-in-looping-render-state/39332 "2020-10-02T22:43:36Z")
We have a table where we use a drop down to filter. The value from the drop down becomes the filter text via a binding on the filter. After upgrading to 8.1 this results in some undesirable behavior where the filter te… --- ## [Scripting - IF ELSE](https://forum.inductiveautomation.com/t/scripting-if-else/39324)
**Author:** [@steven.cox](https://forum.inductiveautomation.com/u/steven.cox)\ **Replies:** 7\ **Last updated:** [October 2, 2020, 8:50pm UTC](https://forum.inductiveautomation.com/t/scripting-if-else/39324 "2020-10-02T20:50:06Z")
Hi all, I am learning Ignition, scripting, and Databases all at the same time and I am stuck. I am trying to add an if else statement to a script I have so I set up a window just to play with. I have 2 text fields and… --- ## [How to run a project use less server SQL resource](https://forum.inductiveautomation.com/t/how-to-run-a-project-use-less-server-sql-resource/39092)
**Author:** [@yifeiliu08](https://forum.inductiveautomation.com/u/yifeiliu08)\ **Replies:** 24\ **Last updated:** [October 2, 2020, 8:26pm UTC](https://forum.inductiveautomation.com/t/how-to-run-a-project-use-less-server-sql-resource/39092 "2020-10-02T20:26:22Z")
BackGround: I have ignition as a tool to develop the operator interface to collect realtime data from production line. With more and more app develped, sql resource become a big issue the following picture is my sql act… --- ## [Ignition 8 Designer Component Font Selection](https://forum.inductiveautomation.com/t/ignition-8-designer-component-font-selection/39328)
**Author:** [@MMaynard](https://forum.inductiveautomation.com/u/MMaynard)\ **Replies:** 0\ **Last updated:** [October 2, 2020, 8:01pm UTC](https://forum.inductiveautomation.com/t/ignition-8-designer-component-font-selection/39328 "2020-10-02T20:01:25Z")
Can I ask why the font selection field in the component properties was changed to a dropdown only? It used to be that you could just type the font name, bold/Plain, size into it. Now you have to use the font interface … --- ## [\[SOLVED\] How to pass a value from a button to a view on a perspective session](https://forum.inductiveautomation.com/t/solved-how-to-pass-a-value-from-a-button-to-a-view-on-a-perspective-session/39302)
**Author:** [@bmeyers](https://forum.inductiveautomation.com/u/bmeyers)\ **Replies:** 6\ **Last updated:** [October 2, 2020, 7:46pm UTC](https://forum.inductiveautomation.com/t/solved-how-to-pass-a-value-from-a-button-to-a-view-on-a-perspective-session/39302 "2020-10-02T19:46:18Z")
Good morning, I have a coordinate view with a carousel component and an embedded component. My carousel component holds 5 pages of 24 buttons each. When the user presses a button i want to pass a value from the button t… --- ## [Way to view a clients console log in 7.8.4?](https://forum.inductiveautomation.com/t/way-to-view-a-clients-console-log-in-7-8-4/39327)
**Author:** [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Replies:** 0\ **Last updated:** [October 2, 2020, 7:21pm UTC](https://forum.inductiveautomation.com/t/way-to-view-a-clients-console-log-in-7-8-4/39327 "2020-10-02T19:21:58Z")
I know in the newer versions you can see what the console is printing out on the client. Is there a way to do that in 7.8.4? I currently cannot remote into the client to look first hand and am trying to do it from the … --- ## [JSON fields for tags](https://forum.inductiveautomation.com/t/json-fields-for-tags/39326)
**Author:** [@christopher.berg](https://forum.inductiveautomation.com/u/christopher.berg)\ **Replies:** 0\ **Last updated:** [October 2, 2020, 7:21pm UTC](https://forum.inductiveautomation.com/t/json-fields-for-tags/39326 "2020-10-02T19:21:04Z")
Is there a document somewhere that lists all the JSON names and, where applicable, acceptable values for the fields that make up an Ignition tag? --- ## [Error publishing tag change event. Where is it?!](https://forum.inductiveautomation.com/t/error-publishing-tag-change-event-where-is-it/39232)
**Author:** [@wci.jgiese](https://forum.inductiveautomation.com/u/wci.jgiese)\ **Replies:** 14\ **Last updated:** [October 2, 2020, 7:14pm UTC](https://forum.inductiveautomation.com/t/error-publishing-tag-change-event-where-is-it/39232 "2020-10-02T19:14:16Z")
We are seeing an “events” error in the log in ignition but we cannot find where the “Error publishing tag change event.” is coming from. What’s the best way to track down where an error is coming from we have tons of cha… [Previous page](https://forum.inductiveautomation.com/latest.md?page=1285) [Next page](https://forum.inductiveautomation.com/latest.md?page=1287)