# Latest **URL:** https://forum.inductiveautomation.com/latest.md?page=1219 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 1220 --- ## [8.1.0 Try function in expression not returning fallback on error](https://forum.inductiveautomation.com/t/8-1-0-try-function-in-expression-not-returning-fallback-on-error/40563)
**Author:** [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Replies:** 4\ **Last updated:** [February 18, 2021, 4:52am UTC](https://forum.inductiveautomation.com/t/8-1-0-try-function-in-expression-not-returning-fallback-on-error/40563 "2021-02-18T04:52:41Z")
v8.1.0 Below, view.params.icon.path doesn’t exist and I want to return false if this is the case. I tried using the try function, but it’s returning bad\_stale instead of false. I’ll use isGood instead (probably shoul… --- ## [Multiple aggregation over a period of time](https://forum.inductiveautomation.com/t/multiple-aggregation-over-a-period-of-time/43549)
**Author:** [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\ **Replies:** 1\ **Last updated:** [February 18, 2021, 4:10am UTC](https://forum.inductiveautomation.com/t/multiple-aggregation-over-a-period-of-time/43549 "2021-02-18T04:10:36Z")
Hello folks, I have 2 counters. TotalEvent BadEvents These couters are in the PLC and never reset. The counters are collected trought the historian. As an example, I’d like to enter a date range (example last 7 days… --- ## [Perspective Power Chart settings not "sticking"](https://forum.inductiveautomation.com/t/perspective-power-chart-settings-not-sticking/43547)
**Author:** [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 11:49pm UTC](https://forum.inductiveautomation.com/t/perspective-power-chart-settings-not-sticking/43547 "2021-02-17T23:49:53Z")
Ignition 8.1.1. I’m modifying a Power Chart to add in a fourth plot and new tag. As shown on the IU video, I’m doing some of the configuration in Preview mode and they’re showing up in the Properties view. I then save … --- ## [QNAP Linux Station](https://forum.inductiveautomation.com/t/qnap-linux-station/42897)
**Author:** [@cegge](https://forum.inductiveautomation.com/u/cegge)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 11:34pm UTC](https://forum.inductiveautomation.com/t/qnap-linux-station/42897 "2021-02-17T23:34:37Z")
For some reason my Maker license won’t activate anymore in the Linux Station ubuntu instance i have. Any idea why? Tried creating a new license. Seems to go active for about a second and then say invalid. --- ## [Alarm configuration and tag alarm properties](https://forum.inductiveautomation.com/t/alarm-configuration-and-tag-alarm-properties/43544)
**Author:** [@paul.longtine](https://forum.inductiveautomation.com/u/paul.longtine)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 10:50pm UTC](https://forum.inductiveautomation.com/t/alarm-configuration-and-tag-alarm-properties/43544 "2021-02-17T22:50:32Z")
NOTE: I am using Gateway version 8.1.0 (b2020110211) I’ve observed an inconsistent behavior when using the scripting functions system.tag.readBlocking and perspective tag bindings on tag paths pointing to alarm configur… --- ## [UDT OPCItemPath MODBUS address using 2 parameters](https://forum.inductiveautomation.com/t/udt-opcitempath-modbus-address-using-2-parameters/43543)
**Author:** [@greg.evans](https://forum.inductiveautomation.com/u/greg.evans)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 10:32pm UTC](https://forum.inductiveautomation.com/t/udt-opcitempath-modbus-address-using-2-parameters/43543 "2021-02-17T22:32:22Z")
I want to generate a modbus address in the opcitempath using two parameters: Base address: 40010 (this is the base address that I want to start with) Instance: 2 The Computed Offset: Instance \* 50 The resulting addre… --- ## [Module run on 8.0 version but faulted on 8.1 version](https://forum.inductiveautomation.com/t/module-run-on-8-0-version-but-faulted-on-8-1-version/43426)
**Author:** [@gulinjie](https://forum.inductiveautomation.com/u/gulinjie)\ **Replies:** 4\ **Last updated:** [February 17, 2021, 9:35pm UTC](https://forum.inductiveautomation.com/t/module-run-on-8-0-version-but-faulted-on-8-1-version/43426 "2021-02-17T21:35:18Z")
Hello, we’re trying to develop a custom opc-ua device module. That module could be run successfully on Version 8.0. However, after I upgrade my Ignition to Version 8.1.2, this module is faulted. The Ignition-platform-ve… --- ## [Perspective Workstation not licensed with standard edition?](https://forum.inductiveautomation.com/t/perspective-workstation-not-licensed-with-standard-edition/42752)
**Author:** [@wking](https://forum.inductiveautomation.com/u/wking)\ **Replies:** 3\ **Last updated:** [February 17, 2021, 9:19pm UTC](https://forum.inductiveautomation.com/t/perspective-workstation-not-licensed-with-standard-edition/42752 "2021-02-17T21:19:56Z")
Lame. :woozy\_face: --- ## [Indirect tag and calc](https://forum.inductiveautomation.com/t/indirect-tag-and-calc/43328)
**Author:** [@philippeg](https://forum.inductiveautomation.com/u/philippeg)\ **Replies:** 6\ **Last updated:** [February 17, 2021, 8:56pm UTC](https://forum.inductiveautomation.com/t/indirect-tag-and-calc/43328 "2021-02-17T20:56:19Z")
Hello I have objects containing indirect bindings. for instance Indirect tag path {1} and where Ref {1} is Root container.Phase\_number Phase number contains a Tag name this Tag is actually a Float when I display th… --- ## [Steps to creating an alarm and alarm pipeline](https://forum.inductiveautomation.com/t/steps-to-creating-an-alarm-and-alarm-pipeline/43538)
**Author:** [@bobby](https://forum.inductiveautomation.com/u/bobby)\ **Replies:** 1\ **Last updated:** [February 17, 2021, 8:49pm UTC](https://forum.inductiveautomation.com/t/steps-to-creating-an-alarm-and-alarm-pipeline/43538 "2021-02-17T20:49:39Z")
Hello There, I am pretty new to the world of ignition, so please bear with me… I am currently running the following platform. |Ignition Platform|8.0.16 (b2020082513) |\*\*Symbol Factory Module\*\*|6.0.16 (b2020082513) |A… --- ## [Views Hierarchy structure in Perspective](https://forum.inductiveautomation.com/t/views-hierarchy-structure-in-perspective/43512)
**Author:** [@aamjad](https://forum.inductiveautomation.com/u/aamjad)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 8:06pm UTC](https://forum.inductiveautomation.com/t/views-hierarchy-structure-in-perspective/43512 "2021-02-17T20:06:23Z")
Hi All, I am wondering if there is a way to group different perspective components in a view under project browser window?. --- ## [Fallback system alarming](https://forum.inductiveautomation.com/t/fallback-system-alarming/42884)
**Author:** [@danblibby](https://forum.inductiveautomation.com/u/danblibby)\ **Replies:** 1\ **Last updated:** [February 17, 2021, 7:08pm UTC](https://forum.inductiveautomation.com/t/fallback-system-alarming/42884 "2021-02-17T19:08:03Z")
Hi Everyone, Question about differentiated alarming via a fallback client. Currently using corporate server for alarm push notifications and also currently utilize a fallback local client project for a loss of connectio… --- ## [Transferring project to another PC & Update](https://forum.inductiveautomation.com/t/transferring-project-to-another-pc-update/42747)
**Author:** [@danblibby](https://forum.inductiveautomation.com/u/danblibby)\ **Replies:** 4\ **Last updated:** [February 17, 2021, 7:05pm UTC](https://forum.inductiveautomation.com/t/transferring-project-to-another-pc-update/42747 "2021-02-17T19:05:46Z")
Good morning, New member here, and getting more familiar with Ignition. I would like to ask the group for opinions on process or advice. Client needs to update Windows OS on a new machine and also update Ignition on th… --- ## [Tracking memory heap/performance issue in httplib](https://forum.inductiveautomation.com/t/tracking-memory-heap-performance-issue-in-httplib/43438)
**Author:** [@wci.jgiese](https://forum.inductiveautomation.com/u/wci.jgiese)\ **Replies:** 19\ **Last updated:** [February 17, 2021, 6:53pm UTC](https://forum.inductiveautomation.com/t/tracking-memory-heap-performance-issue-in-httplib/43438 "2021-02-17T18:53:29Z")
We had some sort of something going on that caused our heap to reach max (2GB) and was causing all sorts of issues with HTTP requests. We increased the heap max to 4GB but upon restarting the server is operating nomin… --- ## [Azul OpenJDK Window Firewall](https://forum.inductiveautomation.com/t/azul-openjdk-window-firewall/43533)
**Author:** [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 6:33pm UTC](https://forum.inductiveautomation.com/t/azul-openjdk-window-firewall/43533 "2021-02-17T18:33:14Z")
We have our users setup so their Ignition launcher installs to the users %APPDATA%. Which is good because we do not have to rely on IT to deploy and update the various launcher installs (Designer, Vision, and Workstation… --- ## [Creating a log and print function that is not working?](https://forum.inductiveautomation.com/t/creating-a-log-and-print-function-that-is-not-working/42203)
**Author:** [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Replies:** 10\ **Last updated:** [February 17, 2021, 6:33pm UTC](https://forum.inductiveautomation.com/t/creating-a-log-and-print-function-that-is-not-working/42203 "2021-02-17T18:33:05Z")
Unsure why this is not working, probably some niche reason I am unaware of. I have two scripts that are involved here, def universalPrint(message): """ Will work for vision or perspective clients now. Args: messa… --- ## [Stacked Bar in Chart](https://forum.inductiveautomation.com/t/stacked-bar-in-chart/43531)
**Author:** [@prasath.t](https://forum.inductiveautomation.com/u/prasath.t)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 5:45pm UTC](https://forum.inductiveautomation.com/t/stacked-bar-in-chart/43531 "2021-02-17T17:45:03Z")
Is it possible to click on the stacked bar one of the color to switch to another stacked bar chart? I have compressor which is violet color in the image i have upload. what i have to do is, i when i click that color I … --- ## [Synchronize the scroll bars between 2 template canvases](https://forum.inductiveautomation.com/t/synchronize-the-scroll-bars-between-2-template-canvases/43491)
**Author:** [@aharris](https://forum.inductiveautomation.com/u/aharris)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 5:27pm UTC](https://forum.inductiveautomation.com/t/synchronize-the-scroll-bars-between-2-template-canvases/43491 "2021-02-17T17:27:37Z")
I'm trying to synchronize the scroll bars between 2 template canvases. I found a few relevant post and got to this point of experimenting however instead of setting the scroll bar position on my template canvas it sets … --- ## [Pass parameter to tag.writeAsync](https://forum.inductiveautomation.com/t/pass-parameter-to-tag-writeasync/43485)
**Author:** [@kelly.draehn](https://forum.inductiveautomation.com/u/kelly.draehn)\ **Replies:** 14\ **Last updated:** [February 17, 2021, 5:03pm UTC](https://forum.inductiveautomation.com/t/pass-parameter-to-tag-writeasync/43485 "2021-02-17T17:03:11Z")
Hi All, Do you know if there is a way to pass an additional parameter to the function called in writeAsync? Basically I am iterating through a tag folder to store 1000 raw data samples using a for loop. I would like t… --- ## [WebDev Module and Html Templating](https://forum.inductiveautomation.com/t/webdev-module-and-html-templating/38320)
**Author:** [@scott.stamps](https://forum.inductiveautomation.com/u/scott.stamps)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 3:42pm UTC](https://forum.inductiveautomation.com/t/webdev-module-and-html-templating/38320 "2021-02-17T15:42:32Z")
All - I am interested in html templating approaches from within the WebDev module. Similar to this post, we are simply wanting to bind query results to an html view. It seems that there are several templating options to … --- ## [Duplicate sql table](https://forum.inductiveautomation.com/t/duplicate-sql-table/43518)
**Author:** [@Dominique.louis1](https://forum.inductiveautomation.com/u/Dominique.louis1)\ **Replies:** 1\ **Last updated:** [February 17, 2021, 4:20pm UTC](https://forum.inductiveautomation.com/t/duplicate-sql-table/43518 "2021-02-17T16:20:40Z")
hello I would like to launch a request in a tag to make a backup copy of my SQL table the SQL command works but I cannot integrate it into a script “select \* INTO TABLE1 FROM TABLE2” I tried this but it doesn’t work … --- ## [Ignition (OPC- UA device connection)](https://forum.inductiveautomation.com/t/ignition-opc-ua-device-connection/37858)
**Author:** [@man.nguyen-van](https://forum.inductiveautomation.com/u/man.nguyen-van)\ **Replies:** 6\ **Last updated:** [February 17, 2021, 3:05pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-device-connection/37858 "2021-02-17T15:05:34Z")
Hello everyone, Can you help me, I have a question: In ignition (OPC UA\> Device Connections). a maximum of how many devices can be connected ? --- ## [Ignition Edge query](https://forum.inductiveautomation.com/t/ignition-edge-query/43513)
**Author:** [@Gaurav.Shitole](https://forum.inductiveautomation.com/u/Gaurav.Shitole)\ **Replies:** 1\ **Last updated:** [February 17, 2021, 1:53pm UTC](https://forum.inductiveautomation.com/t/ignition-edge-query/43513 "2021-02-17T13:53:36Z")
Hello All, I need a confirmation how Edge and Normal Ignition works together. I will have Central Gateway installed on Main Panel and there will be several ignition clients for it. In addition to that client also has 2… --- ## [How to setup Tag History in a Gateway centric module?](https://forum.inductiveautomation.com/t/how-to-setup-tag-history-in-a-gateway-centric-module/43304)
**Author:** [@cboin](https://forum.inductiveautomation.com/u/cboin)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 1:23pm UTC](https://forum.inductiveautomation.com/t/how-to-setup-tag-history-in-a-gateway-centric-module/43304 "2021-02-17T13:23:09Z")
I am looking at developing my own OEE system for autonomous vehicles. I have come up with a tag architecture for my module, but would like to store historical data on these tags. Is this something I can configure automa… --- ## [Perspective Symbol State](https://forum.inductiveautomation.com/t/perspective-symbol-state/43473)
**Author:** [@Schwartzds](https://forum.inductiveautomation.com/u/Schwartzds)\ **Replies:** 1\ **Last updated:** [February 17, 2021, 1:12pm UTC](https://forum.inductiveautomation.com/t/perspective-symbol-state/43473 "2021-02-17T13:12:43Z")
Just installed newest update. Working in perspective, how do I bind a tag that is an integer with each of the states of the object? For example, 0 is stopped, 1 is running, etc. --- ## [How to make tag timestamp to reference only from tag provider source](https://forum.inductiveautomation.com/t/how-to-make-tag-timestamp-to-reference-only-from-tag-provider-source/43447)
**Author:** [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Replies:** 6\ **Last updated:** [February 17, 2021, 11:27am UTC](https://forum.inductiveautomation.com/t/how-to-make-tag-timestamp-to-reference-only-from-tag-provider-source/43447 "2021-02-17T11:27:35Z")
Hi All I am using a edge v8.0.16 and a server v8.0.16 with MQTT modules. On my edge, i have a counter tag ‘EdgeTag’ with updated seconds, so that the tag’s timestamp will be constantly updated. I also have a ‘FromServ… --- ## [Hide Live Limit event from Alarm Journal](https://forum.inductiveautomation.com/t/hide-live-limit-event-from-alarm-journal/42383)
**Author:** [@jzngyi](https://forum.inductiveautomation.com/u/jzngyi)\ **Replies:** 5\ **Last updated:** [February 17, 2021, 9:00am UTC](https://forum.inductiveautomation.com/t/hide-live-limit-event-from-alarm-journal/42383 "2021-02-17T09:00:07Z")
Hi, can I know is there any method to hide Live Event Limit events from Alarm Journal Table? --- ## [Report table overflowing](https://forum.inductiveautomation.com/t/report-table-overflowing/43506)
**Author:** [@tordvd](https://forum.inductiveautomation.com/u/tordvd)\ **Replies:** 0\ **Last updated:** [February 17, 2021, 8:46am UTC](https://forum.inductiveautomation.com/t/report-table-overflowing/43506 "2021-02-17T08:46:30Z")
This table is overflowing the component outline: Anyone knows how to avoid this? (The detail column is set to structured): --- ## [SPC module not showing in component palette](https://forum.inductiveautomation.com/t/spc-module-not-showing-in-component-palette/43460)
**Author:** [@vikasl1](https://forum.inductiveautomation.com/u/vikasl1)\ **Replies:** 2\ **Last updated:** [February 17, 2021, 8:01am UTC](https://forum.inductiveautomation.com/t/spc-module-not-showing-in-component-palette/43460 "2021-02-17T08:01:11Z")
I have installed and Configured SPC Module in Gateway Module configuration and status is showing running. But in Designer launcher-\>component palette, SPC and Quality module not showing. Further information please find… --- ## [Is popping up a browser window possible in Perspective?](https://forum.inductiveautomation.com/t/is-popping-up-a-browser-window-possible-in-perspective/43461)
**Author:** [@mart](https://forum.inductiveautomation.com/u/mart)\ **Replies:** 3\ **Last updated:** [February 17, 2021, 7:24am UTC](https://forum.inductiveautomation.com/t/is-popping-up-a-browser-window-possible-in-perspective/43461 "2021-02-17T07:24:42Z")
We have an issue. A click on a maintenance icon opens a new browser tab in which an external URL is opened (Customer side maintenance site). The problem is that the client is in full screen kiosk mode, no keyboard and … [Previous page](https://forum.inductiveautomation.com/latest.md?page=1218) [Next page](https://forum.inductiveautomation.com/latest.md?page=1220)