# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?page=1074 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 1075 --- ## [Power Table Extension Functions handle exceptions silently](https://forum.inductiveautomation.com/t/power-table-extension-functions-handle-exceptions-silently/42575)
**Author:** [@Dan\_Bridgeman](https://forum.inductiveautomation.com/u/Dan_Bridgeman)\ **Replies:** 5\ **Last updated:** [January 25, 2021, 7:41pm UTC](https://forum.inductiveautomation.com/t/power-table-extension-functions-handle-exceptions-silently/42575 "2021-01-25T19:41:10Z")
It appears that when the Power Table Extension Functions encounter an exception, they fail silently. They do log the exception and the stack trace to the console, but unless the user is monitoring the console, they will… --- ## [Saving and Loading files to SQL table](https://forum.inductiveautomation.com/t/saving-and-loading-files-to-sql-table/42545)
**Author:** [@richard.d.white](https://forum.inductiveautomation.com/u/richard.d.white)\ **Replies:** 4\ **Last updated:** [January 25, 2021, 6:43pm UTC](https://forum.inductiveautomation.com/t/saving-and-loading-files-to-sql-table/42545 "2021-01-25T18:43:32Z")
Our goal is to load specific files into an Ignition accessible SQL database for archiving/future use. I’ve followed the tutorials showing how to put files into SQL and then extract them back onto the client computer. T… --- ## [Time Series Analysis Tools](https://forum.inductiveautomation.com/t/time-series-analysis-tools/42582)
**Author:** [@cody.abbott](https://forum.inductiveautomation.com/u/cody.abbott)\ **Replies:** 2\ **Last updated:** [January 25, 2021, 5:43pm UTC](https://forum.inductiveautomation.com/t/time-series-analysis-tools/42582 "2021-01-25T17:43:53Z")
I’m pulling data out of my MSSQL historian DB for use in reporting tools like Tableau, but I’m having problems with efficiently aggregating the data. For example, if I want to show a temperature trend over an entire year… --- ## [Scripting - TAG EVENT](https://forum.inductiveautomation.com/t/scripting-tag-event/42579)
**Author:** [@luc.martin](https://forum.inductiveautomation.com/u/luc.martin)\ **Replies:** 1\ **Last updated:** [January 25, 2021, 5:19pm UTC](https://forum.inductiveautomation.com/t/scripting-tag-event/42579 "2021-01-25T17:19:58Z")
I’m on 8.1.1 I have un bunch of specific tags that I want to list path in a memory StringArray. I use a system.util.getGlobals() variable to store path then wrote the system.util.getGlobals() into a memory tag. My pro… --- ## [Modbus TCP Read Timeout](https://forum.inductiveautomation.com/t/modbus-tcp-read-timeout/42576)
**Author:** [@kumar.chellappan](https://forum.inductiveautomation.com/u/kumar.chellappan)\ **Replies:** 8\ **Last updated:** [January 25, 2021, 5:04pm UTC](https://forum.inductiveautomation.com/t/modbus-tcp-read-timeout/42576 "2021-01-25T17:04:05Z")
Hi, I am testing Modbus TCP. I am able to read and write without any issues but on the logs, it keeps on going into a read timeout. And the values in the tag browser goes in to bad\_stale. I have the force reconnect tu… --- ## [Gateway cannot prune old gateway backups and is flooding logs](https://forum.inductiveautomation.com/t/gateway-cannot-prune-old-gateway-backups-and-is-flooding-logs/42578)
**Author:** [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Replies:** 3\ **Last updated:** [January 25, 2021, 4:24pm UTC](https://forum.inductiveautomation.com/t/gateway-cannot-prune-old-gateway-backups-and-is-flooding-logs/42578 "2021-01-25T16:24:09Z")
Using Ignition 8.0.14. I have a gateway backup set up. Originally I put it to once a minute and forgot to change it so it was doing more backups more frequently than intended, which I’ve switched to be once an hour. H… --- ## [Count down timer](https://forum.inductiveautomation.com/t/count-down-timer/42569)
**Author:** [@bala](https://forum.inductiveautomation.com/u/bala)\ **Replies:** 2\ **Last updated:** [January 25, 2021, 12:19pm UTC](https://forum.inductiveautomation.com/t/count-down-timer/42569 "2021-01-25T12:19:00Z")
Hi, i want decrement timer function. if i enter value in numerical feild and press the button after timer will start decrement count.if any solution is there? --- ## [OPC UA Tag Folder not working - OPC DA working](https://forum.inductiveautomation.com/t/opc-ua-tag-folder-not-working-opc-da-working/42549)
**Author:** [@dtrottier](https://forum.inductiveautomation.com/u/dtrottier)\ **Replies:** 1\ **Last updated:** [January 24, 2021, 4:19pm UTC](https://forum.inductiveautomation.com/t/opc-ua-tag-folder-not-working-opc-da-working/42549 "2021-01-24T16:19:33Z")
Hi all, Using OPC-DA the Nested folder in folder is working good (complex PLC structure) Using OPC-UA the Nested folder in folder will appear as tag in tag so then the structure is not working All the values will … --- ## [Ubuntu Server Install Issue](https://forum.inductiveautomation.com/t/ubuntu-server-install-issue/42553)
**Author:** [@rm.severs](https://forum.inductiveautomation.com/u/rm.severs)\ **Replies:** 2\ **Last updated:** [January 23, 2021, 10:45pm UTC](https://forum.inductiveautomation.com/t/ubuntu-server-install-issue/42553 "2021-01-23T22:45:24Z")
Running into issues installing ignition on my raspberry pi. Running ubuntu server headless 20.04, pi 4 8GB. Download checksum looks fine, curled it right from the site onto the pi. ubuntu@ubuntu:~$ ./ignition-8.1.1-li… --- ## [Ignition via Homebrew](https://forum.inductiveautomation.com/t/ignition-via-homebrew/42537)
**Author:** [@cesrom](https://forum.inductiveautomation.com/u/cesrom)\ **Replies:** 5\ **Last updated:** [January 23, 2021, 10:11pm UTC](https://forum.inductiveautomation.com/t/ignition-via-homebrew/42537 "2021-01-23T22:11:03Z")
During the winter break out of boredom I started working in a way to get Ignition installed via Homebrew, and recently my efforts have come to fruition. For those who might not be aware of Homebrew (https://brew.sh/), H… --- ## [Backup Gateway and Projects](https://forum.inductiveautomation.com/t/backup-gateway-and-projects/21370)
**Author:** [@luca.mori](https://forum.inductiveautomation.com/u/luca.mori)\ **Replies:** 6\ **Last updated:** [January 22, 2021, 11:28pm UTC](https://forum.inductiveautomation.com/t/backup-gateway-and-projects/21370 "2021-01-22T23:28:32Z")
Hi everyone, since this is the second time the backup went wrong, I'd like to share with you my experience. I did a gateway backup, then when I restored I found my self with an older version of the actual project. … --- ## [Can a Vision window show part of another Vision window?](https://forum.inductiveautomation.com/t/can-a-vision-window-show-part-of-another-vision-window/42536)
**Author:** [@stevetperry](https://forum.inductiveautomation.com/u/stevetperry)\ **Replies:** 2\ **Last updated:** [January 22, 2021, 10:12pm UTC](https://forum.inductiveautomation.com/t/can-a-vision-window-show-part-of-another-vision-window/42536 "2021-01-22T22:12:54Z")
Can a Vision window show part of another Vision window? Basically I need a “viewport” that shows all of the components in a specified region of another Vision window. Thanks --- ## [Manually Call Extension Functions](https://forum.inductiveautomation.com/t/manually-call-extension-functions/42487)
**Author:** [@jramirez3](https://forum.inductiveautomation.com/u/jramirez3)\ **Replies:** 5\ **Last updated:** [January 22, 2021, 8:23pm UTC](https://forum.inductiveautomation.com/t/manually-call-extension-functions/42487 "2021-01-22T20:23:57Z")
How do you call the extension functions on a component manually? Like via a button script calling a power tables extension function or roster management’s filter roster function? --- ## [Perspective video player source](https://forum.inductiveautomation.com/t/perspective-video-player-source/40860)
**Author:** [@NII](https://forum.inductiveautomation.com/u/NII)\ **Replies:** 3\ **Last updated:** [January 22, 2021, 8:03pm UTC](https://forum.inductiveautomation.com/t/perspective-video-player-source/40860 "2021-01-22T20:03:00Z")
I would like to display a USB video stream using the video player, is this possible? What should set the source to? The camera is uvc compatible. --- ## [\[Modbus TCP\] trouble writing to single bit of a holding register](https://forum.inductiveautomation.com/t/modbus-tcp-trouble-writing-to-single-bit-of-a-holding-register/42484)
**Author:** [@Marc.Akoto](https://forum.inductiveautomation.com/u/Marc.Akoto)\ **Replies:** 3\ **Last updated:** [January 22, 2021, 5:24pm UTC](https://forum.inductiveautomation.com/t/modbus-tcp-trouble-writing-to-single-bit-of-a-holding-register/42484 "2021-01-22T17:24:32Z")
Ignition 8.1.1 Hi, I’m facing issues with boolean writes on Holding Registers. The modbus server is a siemens PLC \[s71xxxxpn\] defined in Ignition as Modbus TCP device . Writing to the entire HR seems to work fine: I… --- ## [Host Session Property - IP vs Hostname returned?](https://forum.inductiveautomation.com/t/host-session-property-ip-vs-hostname-returned/41765)
**Author:** [@JohnIrving](https://forum.inductiveautomation.com/u/JohnIrving)\ **Replies:** 6\ **Last updated:** [January 22, 2021, 3:09pm UTC](https://forum.inductiveautomation.com/t/host-session-property-ip-vs-hostname-returned/41765 "2021-01-22T15:09:06Z")
Hello, I’d like to get the hostname of the machine the current session is running on. The session properties document says that the host property reflects the “connecting system’s IP address or hostname”. What determines… --- ## [How does Easy Chart know when 2 points should be connected or not?](https://forum.inductiveautomation.com/t/how-does-easy-chart-know-when-2-points-should-be-connected-or-not/42522)
**Author:** [@mpoulsen921](https://forum.inductiveautomation.com/u/mpoulsen921)\ **Replies:** 0\ **Last updated:** [January 22, 2021, 2:50pm UTC](https://forum.inductiveautomation.com/t/how-does-easy-chart-know-when-2-points-should-be-connected-or-not/42522 "2021-01-22T14:50:49Z")
Hi, How does the Easy Chart determine when 2 points should be connected? I know that if you set the Tag History Resolution Mode to Fixed it will use the value specified in Tag History Resolution to plot the line with t… --- ## [Error in writing to tags](https://forum.inductiveautomation.com/t/error-in-writing-to-tags/42480)
**Author:** [@kp.krishnaprasad97](https://forum.inductiveautomation.com/u/kp.krishnaprasad97)\ **Replies:** 5\ **Last updated:** [January 22, 2021, 2:16pm UTC](https://forum.inductiveautomation.com/t/error-in-writing-to-tags/42480 "2021-01-22T14:16:17Z")
There is a script written in message Handler under gateway events in designer and the message is to update in Tags of type data set but it shows some error How to debug the error Message and error is attached --- ## [AlarmJournal Set Date Range Popup size](https://forum.inductiveautomation.com/t/alarmjournal-set-date-range-popup-size/42430)
**Author:** [@rodrigo.almeida](https://forum.inductiveautomation.com/u/rodrigo.almeida)\ **Replies:** 6\ **Last updated:** [January 22, 2021, 1:41pm UTC](https://forum.inductiveautomation.com/t/alarmjournal-set-date-range-popup-size/42430 "2021-01-22T13:41:10Z")
I am using Perspective AlarmJournalTable for historical alarms on a 8" tablet. When trying to set the data range filter the cancel and apply button is hidden off the screen because of the popup size. Could I change the h… --- ## [Chart customizer](https://forum.inductiveautomation.com/t/chart-customizer/42515)
**Author:** [@prasath.t](https://forum.inductiveautomation.com/u/prasath.t)\ **Replies:** 0\ **Last updated:** [January 22, 2021, 9:15am UTC](https://forum.inductiveautomation.com/t/chart-customizer/42515 "2021-01-22T09:15:14Z")
I have one doubt how auto range min size works in chart customizer. Can any one help me in this please. I am trying to set target value around 1000 in x axis but it’s not showing x axis range bcz I don’t have data in tha… --- ## [Create tag with valueChange event logic in it through scripting](https://forum.inductiveautomation.com/t/create-tag-with-valuechange-event-logic-in-it-through-scripting/42386)
**Author:** [@Neo](https://forum.inductiveautomation.com/u/Neo)\ **Replies:** 5\ **Last updated:** [January 22, 2021, 6:00am UTC](https://forum.inductiveautomation.com/t/create-tag-with-valuechange-event-logic-in-it-through-scripting/42386 "2021-01-22T06:00:07Z")
I would like to create a memory tag which has some code in valueChanged event through scripting. I know we can use system.tag.addTag function to create a tag automatically. But I was not able to figure out if we can use … --- ## [PDF Viewer doesn't render embedded images](https://forum.inductiveautomation.com/t/pdf-viewer-doesnt-render-embedded-images/42082)
**Author:** [@AIO](https://forum.inductiveautomation.com/u/AIO)\ **Replies:** 6\ **Last updated:** [January 22, 2021, 12:20am UTC](https://forum.inductiveautomation.com/t/pdf-viewer-doesnt-render-embedded-images/42082 "2021-01-22T00:20:20Z")
Hi folks, Ignition 7.9.6 I’m working with a user manual PDF from a contractor, and the client would like it available in a PDF reader in the client. I’ve tried pointing the PDF reader directly at the PDF, as well as up… --- ## [Perspective vs Vision - Trending and other considerations](https://forum.inductiveautomation.com/t/perspective-vs-vision-trending-and-other-considerations/42272)
**Author:** [@ASF](https://forum.inductiveautomation.com/u/ASF)\ **Replies:** 11\ **Last updated:** [January 22, 2021, 12:08am UTC](https://forum.inductiveautomation.com/t/perspective-vs-vision-trending-and-other-considerations/42272 "2021-01-22T00:08:33Z")
Hi all, Currently negotiating with a customer who wants to upgrade and standardise their SCADA across several sites, and is looking at Ignition. We’re currently trying to decide whether Vision or Perspective is better f… --- ## [Delay system.tag.write in component scripting](https://forum.inductiveautomation.com/t/delay-system-tag-write-in-component-scripting/18272)
**Author:** [@jshaffer09](https://forum.inductiveautomation.com/u/jshaffer09)\ **Replies:** 3\ **Last updated:** [January 21, 2021, 10:48pm UTC](https://forum.inductiveautomation.com/t/delay-system-tag-write-in-component-scripting/18272 "2021-01-21T22:48:08Z")
I want to delay a system.tag.write for 3 to 5 secs after a mouse click. I want to write a zero in to the tag. --- ## [Transfer a license back and forth](https://forum.inductiveautomation.com/t/transfer-a-license-back-and-forth/42499)
**Author:** [@mathieu.thibodeau](https://forum.inductiveautomation.com/u/mathieu.thibodeau)\ **Replies:** 1\ **Last updated:** [January 21, 2021, 8:56pm UTC](https://forum.inductiveautomation.com/t/transfer-a-license-back-and-forth/42499 "2021-01-21T20:56:38Z")
Hi, we are upgrading a customer from Ignition 7.9 to 8.1. License is already good to be transferred . We have the chance to have a separate physical server for V8.1, so I can only stop the actual V7.9 server and start … --- ## [Periods (.) in OPC Item Paths replaced with underscores (\_)](https://forum.inductiveautomation.com/t/periods-in-opc-item-paths-replaced-with-underscores/42494)
**Author:** [@peter](https://forum.inductiveautomation.com/u/peter)\ **Replies:** 4\ **Last updated:** [January 21, 2021, 7:57pm UTC](https://forum.inductiveautomation.com/t/periods-in-opc-item-paths-replaced-with-underscores/42494 "2021-01-21T19:57:40Z")
In Rx3i PLCs (at least) when you create an instance UDT in the PLC code, the components of the UDT are separated from name of the instance via a period EG . When I browse my Rx3i PLC via the Ignition (or other) OPC UA b… --- ## [Button style classes binding doesnt work on custom property](https://forum.inductiveautomation.com/t/button-style-classes-binding-doesnt-work-on-custom-property/42486)
**Author:** [@dhullett](https://forum.inductiveautomation.com/u/dhullett)\ **Replies:** 0\ **Last updated:** [January 21, 2021, 4:53pm UTC](https://forum.inductiveautomation.com/t/button-style-classes-binding-doesnt-work-on-custom-property/42486 "2021-01-21T16:53:51Z")
I am trying to change the style of a button based on a custom property that i defined on my page. The custom property is a sting, and i bound the button.props.style.classes to this custom property but when the property … --- ## [Audit log shows tag write value](https://forum.inductiveautomation.com/t/audit-log-shows-tag-write-value/42464)
**Author:** [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Replies:** 6\ **Last updated:** [January 21, 2021, 4:52pm UTC](https://forum.inductiveautomation.com/t/audit-log-shows-tag-write-value/42464 "2021-01-21T16:52:42Z")
When writing a small decimal value, e.g. 0.03, to a float/double tag to an allen-bradley new PLC (L81 if it’s relevant), this value shows as 0.03 in the tag value, but in the audit log, it shows as 0.0299xxxxx. I realise… --- ## [Retarget to 7.8 and 7.9](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407)
**Author:** [@yehet73190](https://forum.inductiveautomation.com/u/yehet73190)\ **Replies:** 2\ **Last updated:** [January 21, 2021, 4:23pm UTC](https://forum.inductiveautomation.com/t/retarget-to-7-8-and-7-9/42407 "2021-01-21T16:23:28Z")
Hi I have a project that’s setup on a 8.0.2 ignition gateway. There are buttons on that project that targets to other projects on different gateways. I have older projects that’s on a 7.8 and 7.9 ignition gateway, when … --- ## [Writing to Micrologix Bits](https://forum.inductiveautomation.com/t/writing-to-micrologix-bits/42377)
**Author:** [@calimero100582](https://forum.inductiveautomation.com/u/calimero100582)\ **Replies:** 1\ **Last updated:** [January 21, 2021, 3:53pm UTC](https://forum.inductiveautomation.com/t/writing-to-micrologix-bits/42377 "2021-01-21T15:53:59Z")
Hi I’m on Ignition 8.1.1, and I can’t write to Micrologix PLC bits I can browse my PLC, read/write tag value, read bits, but not write bits I’ve tried different data type, but as Boolean was recommended on other forum… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?page=1073) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?page=1075)