# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=948 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 949 --- ## [Help with \*checks notes\* simple division](https://forum.inductiveautomation.com/t/help-with-checks-notes-simple-division/51896)
**Author:** [@zacharyw.larson](https://forum.inductiveautomation.com/u/zacharyw.larson)\ **Replies:** 8\ **Last updated:** [October 13, 2021, 4:26pm UTC](https://forum.inductiveautomation.com/t/help-with-checks-notes-simple-division/51896 "2021-10-13T16:26:11Z")
--- ## [Suming up rows in my Perspective Table](https://forum.inductiveautomation.com/t/suming-up-rows-in-my-perspective-table/51878)
**Author:** [@arunshrivasan](https://forum.inductiveautomation.com/u/arunshrivasan)\ **Replies:** 8\ **Last updated:** [October 13, 2021, 4:12pm UTC](https://forum.inductiveautomation.com/t/suming-up-rows-in-my-perspective-table/51878 "2021-10-13T16:12:05Z")
I am using a Perspective Table and I would like to sum up the values in one of the column and show them in a LED display. Is it possible if I can do that in Ignition? --- ## [Wrapper Log or Gateway Log](https://forum.inductiveautomation.com/t/wrapper-log-or-gateway-log/51887)
**Author:** [@tohhy-pm17](https://forum.inductiveautomation.com/u/tohhy-pm17)\ **Replies:** 2\ **Last updated:** [October 13, 2021, 3:12pm UTC](https://forum.inductiveautomation.com/t/wrapper-log-or-gateway-log/51887 "2021-10-13T15:12:45Z")
Hi guys, I have some question about the log in Ignition. May I know that where is the Ignition Log store ? Based on my understanding the log will be store in the location that same with the Ignition Software which is … --- ## [Ignition - Database connection pool](https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880)
**Author:** [@harigubbi](https://forum.inductiveautomation.com/u/harigubbi)\ **Replies:** 1\ **Last updated:** [October 13, 2021, 2:42pm UTC](https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880 "2021-10-13T14:42:42Z")
I have configured a database connection to the SQL database for historical data logging. Even though, there is 20 connections available in the pool for this connection, i notice that only one connection is used at any ti… --- ## [OPC connection system tags](https://forum.inductiveautomation.com/t/opc-connection-system-tags/36425)
**Author:** [@Henk](https://forum.inductiveautomation.com/u/Henk)\ **Replies:** 9\ **Last updated:** [October 13, 2021, 12:38pm UTC](https://forum.inductiveautomation.com/t/opc-connection-system-tags/36425 "2021-10-13T12:38:06Z")
Ignition 8.0.12 When I am adding a new OPC connection to the gateway with the gateway webbrowser, a new tagfolder is automatically added to ‘\[System\]Gateway/OPC/Connections’ with the same name as the added connection na… --- ## [Get and update a json document with a component](https://forum.inductiveautomation.com/t/get-and-update-a-json-document-with-a-component/51498)
**Author:** [@flavien](https://forum.inductiveautomation.com/u/flavien)\ **Replies:** 11\ **Last updated:** [October 13, 2021, 12:34pm UTC](https://forum.inductiveautomation.com/t/get-and-update-a-json-document-with-a-component/51498 "2021-10-13T12:34:12Z")
Hi, Is there a component which can allow user to read a json document and change elements ? I store configuration in json format in a mysql database. I would like to create an interface to show and update this config. … --- ## [Perspective project behave different on laptop and tablet](https://forum.inductiveautomation.com/t/perspective-project-behave-different-on-laptop-and-tablet/41005)
**Author:** [@yifan.jiang](https://forum.inductiveautomation.com/u/yifan.jiang)\ **Replies:** 7\ **Last updated:** [October 13, 2021, 12:00pm UTC](https://forum.inductiveautomation.com/t/perspective-project-behave-different-on-laptop-and-tablet/41005 "2021-10-13T12:00:07Z")
Hi All, Thanks for your time in advance. I am building a perspective project at the moment by going through the demo projects. However,i have encountered a rather strange behavior. The project i am building at the momen… --- ## [Hi guys, so I encountered this error "Scripting\[system\_util\_tag\]", can you help how to find and debug this error](https://forum.inductiveautomation.com/t/hi-guys-so-i-encountered-this-error-scripting-system-util-tag-can-you-help-how-to-find-and-debug-this-error/51888)
**Author:** [@marcg](https://forum.inductiveautomation.com/u/marcg)\ **Replies:** 6\ **Last updated:** [October 13, 2021, 9:48am UTC](https://forum.inductiveautomation.com/t/hi-guys-so-i-encountered-this-error-scripting-system-util-tag-can-you-help-how-to-find-and-debug-this-error/51888 "2021-10-13T09:48:35Z")
Hi guys, so I encountered this error “Scripting\[system\_util\_tag\]”, can you help how to find and debug this error? because i have no idea where to look at because of lack of info in the error. Advanced Thanks! --- ## [Printing multiple reports at once (report viewer)](https://forum.inductiveautomation.com/t/printing-multiple-reports-at-once-report-viewer/51737)
**Author:** [@Maverick](https://forum.inductiveautomation.com/u/Maverick)\ **Replies:** 11\ **Last updated:** [October 13, 2021, 7:31am UTC](https://forum.inductiveautomation.com/t/printing-multiple-reports-at-once-report-viewer/51737 "2021-10-13T07:31:56Z")
Hi, I have made a vision application consisting of a report viewer, a table and a print button. The report viewer consist of a label with some text, a Code 128 barcode and a QR code, five parameters altogether. The ta… --- ## [Alarm Journal Queries Slow](https://forum.inductiveautomation.com/t/alarm-journal-queries-slow/51871)
**Author:** [@cfuta](https://forum.inductiveautomation.com/u/cfuta)\ **Replies:** 3\ **Last updated:** [October 12, 2021, 6:55pm UTC](https://forum.inductiveautomation.com/t/alarm-journal-queries-slow/51871 "2021-10-12T18:55:12Z")
We have been having issues with slow response times in Ignition which appear to be stemming from the alarm journal logging in Ignition. The queries for the alarm journal are almost always the top longest queries in Ignit… --- ## [system.net.httpPut() not parameter for httpBody](https://forum.inductiveautomation.com/t/system-net-httpput-not-parameter-for-httpbody/51870)
**Author:** [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\ **Replies:** 2\ **Last updated:** [October 12, 2021, 6:46pm UTC](https://forum.inductiveautomation.com/t/system-net-httpput-not-parameter-for-httpbody/51870 "2021-10-12T18:46:08Z")
When doing a HTTP binding on any component, there is that field that allows to allocate a HTTP Body. I was wondering if it’s possible to do the same using system functions scripting. Is the parameter String contentType … --- ## [Detect User Login on the Gateway](https://forum.inductiveautomation.com/t/detect-user-login-on-the-gateway/51860)
**Author:** [@rrebro](https://forum.inductiveautomation.com/u/rrebro)\ **Replies:** 1\ **Last updated:** [October 12, 2021, 2:00pm UTC](https://forum.inductiveautomation.com/t/detect-user-login-on-the-gateway/51860 "2021-10-12T14:00:07Z")
Our machines are setup to log events that occur, we are hoping to detect the user that is logged in and log that in our event log as the operator the event occurred with. Is there a way to detect who is logged in on the… --- ## [Tag historian timestamp source (Ignition 8.1.5)](https://forum.inductiveautomation.com/t/tag-historian-timestamp-source-ignition-8-1-5/47694)
**Author:** [@gahinz](https://forum.inductiveautomation.com/u/gahinz)\ **Replies:** 1\ **Last updated:** [October 12, 2021, 4:20pm UTC](https://forum.inductiveautomation.com/t/tag-historian-timestamp-source-ignition-8-1-5/47694 "2021-10-12T16:20:12Z")
Hello, I am receiving data from a sensor via MQTT. The sensor sends 10 diferent inputs along with a “Time” tag indicating the original time that the sensor read this inputs. When the sensor loses conection it stores th… --- ## [Help with indirect address tag](https://forum.inductiveautomation.com/t/help-with-indirect-address-tag/51835)
**Author:** [@zacharyw.larson](https://forum.inductiveautomation.com/u/zacharyw.larson)\ **Replies:** 7\ **Last updated:** [October 12, 2021, 2:49pm UTC](https://forum.inductiveautomation.com/t/help-with-indirect-address-tag/51835 "2021-10-12T14:49:14Z")
basically I have plc variable that is addressed like thisFifo\[thisIndex\] I made a udt thinking I could somehow append the index as a path, getting the value of the index from another tag Unfortunately, I do not see how… --- ## [NullPointerException when open62541 opc ua tag is updated](https://forum.inductiveautomation.com/t/nullpointerexception-when-open62541-opc-ua-tag-is-updated/51858)
**Author:** [@jdebusser](https://forum.inductiveautomation.com/u/jdebusser)\ **Replies:** 3\ **Last updated:** [October 12, 2021, 3:04pm UTC](https://forum.inductiveautomation.com/t/nullpointerexception-when-open62541-opc-ua-tag-is-updated/51858 "2021-10-12T15:04:23Z")
I'm developing an OPC UA server based on open62541. One of the nodes is publishing a json string every minute. Using the OPC Quick Client I can set a subscription and see it getting updated every minute. Server, addres… --- ## [Get value from hovered slice in a Pie Chart](https://forum.inductiveautomation.com/t/get-value-from-hovered-slice-in-a-pie-chart/41205)
**Author:** [@andreas](https://forum.inductiveautomation.com/u/andreas)\ **Replies:** 2\ **Last updated:** [October 12, 2021, 2:51pm UTC](https://forum.inductiveautomation.com/t/get-value-from-hovered-slice-in-a-pie-chart/41205 "2021-10-12T14:51:27Z")
Anyone knows how to get the value from the currently hovered slice in a pie chart? In the below figure, the value 21438 should be collected, and written to a custom property in e.g. another component: Ignition versio… --- ## [SPC MES 3.0 Module : No data to show](https://forum.inductiveautomation.com/t/spc-mes-3-0-module-no-data-to-show/51862)
**Author:** [@chumnan](https://forum.inductiveautomation.com/u/chumnan)\ **Replies:** 0\ **Last updated:** [October 12, 2021, 2:43pm UTC](https://forum.inductiveautomation.com/t/spc-mes-3-0-module-no-data-to-show/51862 "2021-10-12T14:43:52Z")
Hello! I Configure SPC MES 3.0 Module and Use Database MYSQL and Normal Step Configure has data in database “Table = messampleattributevalue” !!But Window Analysis is no data to show Please sent solution for problem T… --- ## [Get username in Update gateway event script](https://forum.inductiveautomation.com/t/get-username-in-update-gateway-event-script/36865)
**Author:** [@pandreoli](https://forum.inductiveautomation.com/u/pandreoli)\ **Replies:** 7\ **Last updated:** [October 12, 2021, 2:38pm UTC](https://forum.inductiveautomation.com/t/get-username-in-update-gateway-event-script/36865 "2021-10-12T14:38:12Z")
Hello. I was viewing the documentation for system.security.getUsername() and saw one of the examples called this function in the Startup script. I tried using it in Update (when a user saves the designer) but I get the … --- ## [Ubuntu Ignition service fails](https://forum.inductiveautomation.com/t/ubuntu-ignition-service-fails/51741)
**Author:** [@SBL\_MC](https://forum.inductiveautomation.com/u/SBL_MC)\ **Replies:** 5\ **Last updated:** [October 12, 2021, 1:40pm UTC](https://forum.inductiveautomation.com/t/ubuntu-ignition-service-fails/51741 "2021-10-12T13:40:13Z")
Hi all, We are running Ignition 8.1.10 on an Ubuntu server. Oct. 5’th we had some performance issues and rebooted it. After the reboot Ignition never started up. Re-installed Ignition and it solved the issue. Today, oc… --- ## [Troubleshooting skills - what do we have at our disposal?](https://forum.inductiveautomation.com/t/troubleshooting-skills-what-do-we-have-at-our-disposal/51854)
**Author:** [@hewking32](https://forum.inductiveautomation.com/u/hewking32)\ **Replies:** 8\ **Last updated:** [October 12, 2021, 12:29pm UTC](https://forum.inductiveautomation.com/t/troubleshooting-skills-what-do-we-have-at-our-disposal/51854 "2021-10-12T12:29:08Z")
Hi All While learning ignition i am trying to improve my troubleshooting skills when things don’t work as intended. At the moment i would use the following tools: Messageboxes - helpful but far from ideal as they can… --- ## [Storing Value from payload using mqtt paho, system.tag.Async not working correctly with relative path in UDT](https://forum.inductiveautomation.com/t/storing-value-from-payload-using-mqtt-paho-system-tag-async-not-working-correctly-with-relative-path-in-udt/51686)
**Author:** [@jakub.moric](https://forum.inductiveautomation.com/u/jakub.moric)\ **Replies:** 5\ **Last updated:** [October 12, 2021, 12:23pm UTC](https://forum.inductiveautomation.com/t/storing-value-from-payload-using-mqtt-paho-system-tag-async-not-working-correctly-with-relative-path-in-udt/51686 "2021-10-12T12:23:27Z")
Dear All I would like to ask you for a help, iam struggling with the using system.tag.writeAsync in the change script in UDT The first row is not working, when iam trying to write in to tag defined via relative path… --- ## [CPU overload issue](https://forum.inductiveautomation.com/t/cpu-overload-issue/51654)
**Author:** [@alexm](https://forum.inductiveautomation.com/u/alexm)\ **Replies:** 3\ **Last updated:** [October 12, 2021, 11:53am UTC](https://forum.inductiveautomation.com/t/cpu-overload-issue/51654 "2021-10-12T11:53:55Z")
Hello, I am currently facing a CPU overload usage issue as you can see on the screenshots below: I have seen similar posts that suggest eliminating internal property script bindings into components, however, dele… --- ## [Alternative to BinEnc to return a float?](https://forum.inductiveautomation.com/t/alternative-to-binenc-to-return-a-float/51649)
**Author:** [@szalies](https://forum.inductiveautomation.com/u/szalies)\ **Replies:** 8\ **Last updated:** [October 12, 2021, 7:30am UTC](https://forum.inductiveautomation.com/t/alternative-to-binenc-to-return-a-float/51649 "2021-10-12T07:30:12Z")
Hi, I am testing Ignition, looks great, but I am now stuck. We have to read Modbus datas, bit order is not standard, I reorder everything in expression with getBit and then binEnc and works perfect. For Integers… No… --- ## [Couth MC2000T Engraving machine controller](https://forum.inductiveautomation.com/t/couth-mc2000t-engraving-machine-controller/51607)
**Author:** [@suryawanshinilesh](https://forum.inductiveautomation.com/u/suryawanshinilesh)\ **Replies:** 2\ **Last updated:** [October 12, 2021, 7:28am UTC](https://forum.inductiveautomation.com/t/couth-mc2000t-engraving-machine-controller/51607 "2021-10-12T07:28:38Z")
Hi, We have Couth MC2000T Engraving machine controller which is currently connected with rs232 port with labview on standalone PC , we want to connect ignition 8 and send engraving cmd from ignition is it possible? --- ## [\[BUG\] 8.1.5 Disabling tag with bad quality doesn't update quality to disabled](https://forum.inductiveautomation.com/t/bug-8-1-5-disabling-tag-with-bad-quality-doesnt-update-quality-to-disabled/46748)
**Author:** [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Replies:** 2\ **Last updated:** [October 12, 2021, 6:17am UTC](https://forum.inductiveautomation.com/t/bug-8-1-5-disabling-tag-with-bad-quality-doesnt-update-quality-to-disabled/46748 "2021-10-12T06:17:21Z")
8.1.5 I have some tags that had configuration errors. I disabled them however their quality still shows up as configuration error. When I 'restart’ed the tag, it changed to Bad\_Disabled as it should. --- ## [How to use jsonGet using a tag path in a expression tag](https://forum.inductiveautomation.com/t/how-to-use-jsonget-using-a-tag-path-in-a-expression-tag/51844)
**Author:** [@vani161998](https://forum.inductiveautomation.com/u/vani161998)\ **Replies:** 2\ **Last updated:** [October 12, 2021, 6:11am UTC](https://forum.inductiveautomation.com/t/how-to-use-jsonget-using-a-tag-path-in-a-expression-tag/51844 "2021-10-12T06:11:36Z")
i have a json string in a tag . this tag path should be used in another expression tag to extract individual values. eg: tag1={‘firstThing’:1, ‘secondThing’:2} tag2 = jsonGet(tag1 path,firstThing) #this is a expressio… --- ## [Tag Level Expression](https://forum.inductiveautomation.com/t/tag-level-expression/51790)
**Author:** [@subbu.435](https://forum.inductiveautomation.com/u/subbu.435)\ **Replies:** 3\ **Last updated:** [October 11, 2021, 7:02pm UTC](https://forum.inductiveautomation.com/t/tag-level-expression/51790 "2021-10-11T19:02:14Z")
Hello Team, I am looking for a tag level expression to compare current value and the previous/Historical 5mins average value. if the data is not changing, my tag should generate an alert. Could you please help me with … --- ## [SQL Query binding, when its executed ? What triggers that?](https://forum.inductiveautomation.com/t/sql-query-binding-when-its-executed-what-triggers-that/51838)
**Author:** [@stefan.marcin74](https://forum.inductiveautomation.com/u/stefan.marcin74)\ **Replies:** 2\ **Last updated:** [October 11, 2021, 10:42pm UTC](https://forum.inductiveautomation.com/t/sql-query-binding-when-its-executed-what-triggers-that/51838 "2021-10-11T22:42:38Z")
Hi, I am trying to understand SQL Query binding. I could not find the first and most important thing for me and that is when I use Query binding to lets say Data in table, how do I know when this query is executed ? Its … --- ## [Ignition randomly fails to launch full screen](https://forum.inductiveautomation.com/t/ignition-randomly-fails-to-launch-full-screen/51831)
**Author:** [@abelew](https://forum.inductiveautomation.com/u/abelew)\ **Replies:** 0\ **Last updated:** [October 11, 2021, 8:08pm UTC](https://forum.inductiveautomation.com/t/ignition-randomly-fails-to-launch-full-screen/51831 "2021-10-11T20:08:46Z")
We have a panel computer with Ignition Onboard, running on Linux. It is configured to automatically log in and launch the Perspective HMI in Kiosk Mode. This works just fine 80% of the time, but the HMI will randomly lau… --- ## [Referencing a UDT Element's value for another element of that UDT's OPC tag path](https://forum.inductiveautomation.com/t/referencing-a-udt-elements-value-for-another-element-of-that-udts-opc-tag-path/51827)
**Author:** [@rrebro](https://forum.inductiveautomation.com/u/rrebro)\ **Replies:** 0\ **Last updated:** [October 11, 2021, 7:48pm UTC](https://forum.inductiveautomation.com/t/referencing-a-udt-elements-value-for-another-element-of-that-udts-opc-tag-path/51827 "2021-10-11T19:48:28Z")
In my PLC I have a list for the last 10 cycles of the machine what the slowest station was in those cycles. The list contains an index of a station description list. Basically I get the number 10 and now I look at the 10… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=947) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?no_subcategories=false&page=949)