# Latest **URL:** https://forum.inductiveautomation.com/latest.md?page=1777 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 1778 --- ## [Memory Usage Issue](https://forum.inductiveautomation.com/t/memory-usage-issue/9297)
**Author:** [@Polynomial](https://forum.inductiveautomation.com/u/Polynomial)\ **Replies:** 6\ **Last updated:** [August 26, 2015, 5:27pm UTC](https://forum.inductiveautomation.com/t/memory-usage-issue/9297 "2015-08-26T17:27:51Z")
Hello, We are having problems with the java.exe process taking up all available memory on our system causing it to crash. This is Ignition 7.6.7 with Java 7\_u71 on a Windows Server 2008 virtual machine with 8 GB of RAM. … --- ## [Python Module Level Variables vs. Client Tags](https://forum.inductiveautomation.com/t/python-module-level-variables-vs-client-tags/10393)
**Author:** [@nmudge](https://forum.inductiveautomation.com/u/nmudge)\ **Replies:** 3\ **Last updated:** [August 26, 2015, 1:34pm UTC](https://forum.inductiveautomation.com/t/python-module-level-variables-vs-client-tags/10393 "2015-08-26T13:34:29Z")
I just wrote this blog post that is about the benefits of using Python module level variables over client tags in Ignition clients for storing and using global data: nickmudge.info/post/python-modul ... lient-tags I'm … --- ## [Unit Testing in Ignition](https://forum.inductiveautomation.com/t/unit-testing-in-ignition/10397)
**Author:** [@ella\_ramos](https://forum.inductiveautomation.com/u/ella_ramos)\ **Replies:** 0\ **Last updated:** [August 26, 2015, 8:33am UTC](https://forum.inductiveautomation.com/t/unit-testing-in-ignition/10397 "2015-08-26T08:33:57Z")
Is the usual unit test in python can be applied to ignition too? import unittest class LearningCase(unittest.TestCase): def test\_starting\_out(self): self.assertEqual(1, 1) def main(): unittest.main() … --- ## [Blank Password Active Directory Login Issue](https://forum.inductiveautomation.com/t/blank-password-active-directory-login-issue/10396)
**Author:** [@sanderson](https://forum.inductiveautomation.com/u/sanderson)\ **Replies:** 0\ **Last updated:** [August 26, 2015, 5:24am UTC](https://forum.inductiveautomation.com/t/blank-password-active-directory-login-issue/10396 "2015-08-26T05:24:02Z")
Ignition Version: 7.6.4 Not sure if this is a problem with our active directory setup or with ignition. Whenever I set a project authentication to use active directory for credentials, and then someone types their user… --- ## ["Global" Instance of a Class](https://forum.inductiveautomation.com/t/global-instance-of-a-class/10329)
**Author:** [@ian](https://forum.inductiveautomation.com/u/ian)\ **Replies:** 4\ **Last updated:** [August 26, 2015, 5:09am UTC](https://forum.inductiveautomation.com/t/global-instance-of-a-class/10329 "2015-08-26T05:09:31Z")
Hi all, In Ignition, is there any way to create a "global" instance of a class in Ignition when a client/project is started up? Suppose we have (GUI) Button A and Button B and both have scripts for "actionPerformed".… --- ## [COM port / TCP/IP Port data streaming to Ignition](https://forum.inductiveautomation.com/t/com-port-tcp-ip-port-data-streaming-to-ignition/10386)
**Author:** [@ian](https://forum.inductiveautomation.com/u/ian)\ **Replies:** 3\ **Last updated:** [August 26, 2015, 4:05am UTC](https://forum.inductiveautomation.com/t/com-port-tcp-ip-port-data-streaming-to-ignition/10386 "2015-08-26T04:05:18Z")
Hi all, We can connect an Ignition application to a database shared with other application. Thus, we can share data with other application through a shared-database. But is there a way to create COM port or TCP/IP po… --- ## [System.security.switchUser crashes](https://forum.inductiveautomation.com/t/system-security-switchuser-crashes/9424)
**Author:** [@adamplc](https://forum.inductiveautomation.com/u/adamplc)\ **Replies:** 1\ **Last updated:** [August 25, 2015, 9:39pm UTC](https://forum.inductiveautomation.com/t/system-security-switchuser-crashes/9424 "2015-08-25T21:39:55Z")
My main issue is the fact that the system.security.switchUser("username", "password") causes the client to crash. Below is my timed script, but when the user switches I see the application freeze and get a java se binary… --- ## [Uploading and overwriting a project bug](https://forum.inductiveautomation.com/t/uploading-and-overwriting-a-project-bug/10394)
**Author:** [@RyanG](https://forum.inductiveautomation.com/u/RyanG)\ **Replies:** 0\ **Last updated:** [August 25, 2015, 7:21pm UTC](https://forum.inductiveautomation.com/t/uploading-and-overwriting-a-project-bug/10394 "2015-08-25T19:21:56Z")
So this may be a small issue but it caused a big problem for me and my client recently. After uploading an updated .proj file and overwriting an old one, every category (Name, Description, Default Tag Provider, etc) uplo… --- ## [Null input stored procedure](https://forum.inductiveautomation.com/t/null-input-stored-procedure/10391)
**Author:** [@andrea.montresor](https://forum.inductiveautomation.com/u/andrea.montresor)\ **Replies:** 0\ **Last updated:** [August 25, 2015, 9:09am UTC](https://forum.inductiveautomation.com/t/null-input-stored-procedure/10391 "2015-08-25T09:09:35Z")
Hello, in a stored procedure group you can insert a null to an input parameter of the stored procedure? In some cases, in my stored I want some input and some who want to insert null. Thanks --- ## [Script to query Persistent Data](https://forum.inductiveautomation.com/t/script-to-query-persistent-data/10390)
**Author:** [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Replies:** 1\ **Last updated:** [August 24, 2015, 11:10pm UTC](https://forum.inductiveautomation.com/t/script-to-query-persistent-data/10390 "2015-08-24T23:10:09Z")
I am trying to write a module that will expose a script to query the internal persistent database. the problem I am having is when creating the script for the designer scope i cannot figure out how to get the the gatewa… --- ## [Alarm status table source filter](https://forum.inductiveautomation.com/t/alarm-status-table-source-filter/9418)
**Author:** [@chom](https://forum.inductiveautomation.com/u/chom)\ **Replies:** 3\ **Last updated:** [August 24, 2015, 6:09pm UTC](https://forum.inductiveautomation.com/t/alarm-status-table-source-filter/9418 "2015-08-24T18:09:52Z")
I know the syntax for a source filter property is tank 1 (hardcoded) for the alarm status component. I have been trying to create it using an expression. For example {Tags/TagName} but am not having much success. I have… --- ## [Dropdown connected to table column?](https://forum.inductiveautomation.com/t/dropdown-connected-to-table-column/10302)
**Author:** [@alewayhar](https://forum.inductiveautomation.com/u/alewayhar)\ **Replies:** 13\ **Last updated:** [August 24, 2015, 6:03pm UTC](https://forum.inductiveautomation.com/t/dropdown-connected-to-table-column/10302 "2015-08-24T18:03:59Z")
Is it possible to connect the options on a dropdown menu to a specific column in a table on the page? I can add rows to my table and want to make sure that the dropdown menu will respond accordingly if changes are made. … --- ## [How to Update Non Polling Expression Client Tag](https://forum.inductiveautomation.com/t/how-to-update-non-polling-expression-client-tag/10385)
**Author:** [@denji26](https://forum.inductiveautomation.com/u/denji26)\ **Replies:** 3\ **Last updated:** [August 24, 2015, 5:48pm UTC](https://forum.inductiveautomation.com/t/how-to-update-non-polling-expression-client-tag/10385 "2015-08-24T17:48:07Z")
I have a client tag that is a datset based on a SQL query. If I set the Polling Mode to Off, how can I get the tag to update its value when the data in the database table changes? --- ## [Update Roster management using "filterRoster"](https://forum.inductiveautomation.com/t/update-roster-management-using-filterroster/10389)
**Author:** [@apimente](https://forum.inductiveautomation.com/u/apimente)\ **Replies:** 0\ **Last updated:** [August 24, 2015, 12:19pm UTC](https://forum.inductiveautomation.com/t/update-roster-management-using-filterroster/10389 "2015-08-24T12:19:01Z")
Hello, I'm using the roster management component. Successfully I can filter which rosters are shown, but the list is updated only when the window is opened or I refresh the script. Dynamically I change a value that ind… --- ## [Direct scan class](https://forum.inductiveautomation.com/t/direct-scan-class/10382)
**Author:** [@AlThePal](https://forum.inductiveautomation.com/u/AlThePal)\ **Replies:** 2\ **Last updated:** [August 24, 2015, 7:21am UTC](https://forum.inductiveautomation.com/t/direct-scan-class/10382 "2015-08-24T07:21:10Z")
I'm driving 2 tags from Simulator values with different scan classes, both set to Direct mode. I've found that if a scan class is set to longer than 5 seconds its setting is ignored - the tag continues to update at a 5 s… --- ## [Ignition Hipchat Group Shutdown, But Coming Back](https://forum.inductiveautomation.com/t/ignition-hipchat-group-shutdown-but-coming-back/10383)
**Author:** [@nmudge](https://forum.inductiveautomation.com/u/nmudge)\ **Replies:** 0\ **Last updated:** [August 22, 2015, 9:29pm UTC](https://forum.inductiveautomation.com/t/ignition-hipchat-group-shutdown-but-coming-back/10383 "2015-08-22T21:29:30Z")
Last week the public Ignition software Hipchat chat room was shutdown by Hipchat due to spam that suddenly came in. I believe the spam happened because the invitation URL to the chat room was public on this blog post: p… --- ## [Hide Table Column](https://forum.inductiveautomation.com/t/hide-table-column/10380)
**Author:** [@jerry101](https://forum.inductiveautomation.com/u/jerry101)\ **Replies:** 4\ **Last updated:** [August 21, 2015, 11:25pm UTC](https://forum.inductiveautomation.com/t/hide-table-column/10380 "2015-08-21T23:25:10Z")
Trying to hide column(s) on the propertyChange event handler of the table. I am using the below code but the column index is off. As you see below "0" should hide the first column, it hides the second column, 1 hides t… --- ## [Tag Browse Tree](https://forum.inductiveautomation.com/t/tag-browse-tree/10358)
**Author:** [@linktdi](https://forum.inductiveautomation.com/u/linktdi)\ **Replies:** 2\ **Last updated:** [August 21, 2015, 8:18pm UTC](https://forum.inductiveautomation.com/t/tag-browse-tree/10358 "2015-08-21T20:18:32Z")
Need some help on the filterTag extension function of the Tag Browse Tree component. I'm want to filter tags on a folder level when using the historical tag tree mode of the component. Anybody have code to share on h… --- ## [Get a list of all available schedules](https://forum.inductiveautomation.com/t/get-a-list-of-all-available-schedules/9156)
**Author:** [@camatt3](https://forum.inductiveautomation.com/u/camatt3)\ **Replies:** 2\ **Last updated:** [August 21, 2015, 6:53pm UTC](https://forum.inductiveautomation.com/t/get-a-list-of-all-available-schedules/9156 "2015-08-21T18:53:10Z")
Is it possible to get a list of all available schedules? Using a AD/Database authentication, users are not manageable using the User Management Panel component. Instead, I've attempted designing a simple user managemen… --- ## [Multiple Window Instances](https://forum.inductiveautomation.com/t/multiple-window-instances/10376)
**Author:** [@RyanG](https://forum.inductiveautomation.com/u/RyanG)\ **Replies:** 7\ **Last updated:** [August 21, 2015, 3:01pm UTC](https://forum.inductiveautomation.com/t/multiple-window-instances/10376 "2015-08-21T15:01:12Z")
Hi, I'm trying to figure out a way to open multiple instances of a single popup window but leave one specific window open when system.nav.closeWindow('WindowLocation') closes a window. Basically what I'm trying to acco… --- ## [Problem OPC Tag and year](https://forum.inductiveautomation.com/t/problem-opc-tag-and-year/10374)
**Author:** [@andrea.montresor](https://forum.inductiveautomation.com/u/andrea.montresor)\ **Replies:** 3\ **Last updated:** [August 21, 2015, 11:56am UTC](https://forum.inductiveautomation.com/t/problem-opc-tag-and-year/10374 "2015-08-21T11:56:34Z")
Hello, I tried to put in an OPC Tag the value 2015. This is a BYTE and address (working correctly) is: \[DEVICE\_1\]DB210, B26. The data type is int2. When I try to enter 2015, I get 223. This tag represents a year, as 2… --- ## [Dh+ slc5/04](https://forum.inductiveautomation.com/t/dh-slc5-04/10073)
**Author:** [@kburrell3](https://forum.inductiveautomation.com/u/kburrell3)\ **Replies:** 2\ **Last updated:** [August 20, 2015, 8:14pm UTC](https://forum.inductiveautomation.com/t/dh-slc5-04/10073 "2015-08-20T20:14:22Z")
I have a customer with a SLC5/04 processor and the only option of getting data is from DH+. The other ports are already in use. I found this post below in another thread. I do not have the ControlLogix option, are … --- ## [Add row to bound dataset](https://forum.inductiveautomation.com/t/add-row-to-bound-dataset/10375)
**Author:** [@jerry101](https://forum.inductiveautomation.com/u/jerry101)\ **Replies:** 1\ **Last updated:** [August 20, 2015, 3:42pm UTC](https://forum.inductiveautomation.com/t/add-row-to-bound-dataset/10375 "2015-08-20T15:42:25Z")
I am trying to add a row at index 0 in a dropdown list so that the user is not required to make a selection. I have tried the following in the propertyChange Event Handler but does not seem to work. dropdown = even… --- ## [Designer bug - Color picker and Windows 7](https://forum.inductiveautomation.com/t/designer-bug-color-picker-and-windows-7/8558)
**Author:** [@JGJohnson](https://forum.inductiveautomation.com/u/JGJohnson)\ **Replies:** 1\ **Last updated:** [August 20, 2015, 3:38pm UTC](https://forum.inductiveautomation.com/t/designer-bug-color-picker-and-windows-7/8558 "2015-08-20T15:38:50Z")
When editing a color from the Property Editor the color picker dialog overlaps the Windows taskbar. This creates a problem if I click away (usually to copy a color in hex format) and then click back. The Hex value is now… --- ## [Template Binding](https://forum.inductiveautomation.com/t/template-binding/10343)
**Author:** [@DavidWisely](https://forum.inductiveautomation.com/u/DavidWisely)\ **Replies:** 2\ **Last updated:** [August 20, 2015, 6:56am UTC](https://forum.inductiveautomation.com/t/template-binding/10343 "2015-08-20T06:56:46Z")
I'm using a Template Canvas. The Template Canvas has a Custom Property 'PropX'. The Template Canvas is dynamically populated with templates using a script. The Template has a Custom Internal Property 'PropY'. I would l… --- ## [Tables Dataset added columns deleted](https://forum.inductiveautomation.com/t/tables-dataset-added-columns-deleted/10369)
**Author:** [@jerry101](https://forum.inductiveautomation.com/u/jerry101)\ **Replies:** 4\ **Last updated:** [August 19, 2015, 10:31pm UTC](https://forum.inductiveautomation.com/t/tables-dataset-added-columns-deleted/10369 "2015-08-19T22:31:30Z")
I have added several columns and have them image mapped. Saved the window, upon reopening the window my added columns are there for a brief second and then they are gone. Not sure what is going on here. I have no scri… --- ## [Windows 7 not updating time-- a fix](https://forum.inductiveautomation.com/t/windows-7-not-updating-time-a-fix/10373)
**Author:** [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Replies:** 0\ **Last updated:** [August 19, 2015, 9:41pm UTC](https://forum.inductiveautomation.com/t/windows-7-not-updating-time-a-fix/10373 "2015-08-19T21:41:06Z")
The problem: Windows 7 can’t update the clock through “Internet time”. This caused my OPC connection issues discussed here. This registry ‘hack’ will add the U.S. pools from ntp.org into the server list, and put them at… --- ## [Template Component Fill Color](https://forum.inductiveautomation.com/t/template-component-fill-color/10371)
**Author:** [@OkiePC](https://forum.inductiveautomation.com/u/OkiePC)\ **Replies:** 1\ **Last updated:** [August 19, 2015, 9:39pm UTC](https://forum.inductiveautomation.com/t/template-component-fill-color/10371 "2015-08-19T21:39:31Z")
I have an issue very similar to what is described in this thread: inductiveautomation.com/forum/v ... vel#p42507 I have created a symbol for a tower level for an elevated bowl type of water tower. I used the shape edi… --- ## [Bad\_NotConnected Error v7.7.5 -\> 7.5.5](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370)
**Author:** [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Replies:** 5\ **Last updated:** [August 19, 2015, 8:53pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370 "2015-08-19T20:53:40Z")
I may be having a senior moment here, but I’m sure having issues connecting my 7.7.5 install to a 7.5.5 OPC server. Here’s what I have so far. Any ideas are appreciated. And, if you stop by Hudson and fix for me, I’ll ev… --- ## [Client Vs Designer execution](https://forum.inductiveautomation.com/t/client-vs-designer-execution/10372)
**Author:** [@tmv090020](https://forum.inductiveautomation.com/u/tmv090020)\ **Replies:** 1\ **Last updated:** [August 19, 2015, 8:35pm UTC](https://forum.inductiveautomation.com/t/client-vs-designer-execution/10372 "2015-08-19T20:35:10Z")
So my question is "what is the difference between the Client and the Designer?" I am asking this because I have made a component that works on the client side but fails to with a NullPointerException in the designer. [Previous page](https://forum.inductiveautomation.com/latest.md?page=1776) [Next page](https://forum.inductiveautomation.com/latest.md?page=1778)