Tech Notes

InTouch Web Client: HTTP Error 503 – The Service is Unavailable

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AVEVA InTouch HMI

When launching the InTouch Web Client, it is possible to encounter the following error in your default web browser:

HTTP Error 503: The service is unavailable

This tech note provides steps to resolve the error

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Encrypted SuiteLink Connection Cannot be Established

Cross-node encrypted SuiteLink requires both nodes to be joined to the same System Management Server (SMS) server. In some cases, even if SMS is properly configured, a system may encounter the following error and the encrypted SuiteLink connection will fail, even though a Troubleshooting Scan within the AVEVA Common Service Portal may return without errors.

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Migration of Galaxy to System Platform 2023 Never Completes

When migrating a Galaxy from an older version to System Platform 2023, the process hangs without any errors or warning and never completes.

By default, the migration process handles 500 templates at the same time from the original Galaxy. If there are more than 500 templates, this may exceed the 3.5 GB that aaGR process can handle, causing a crash as we see in the Log Viewer.

This tech note provides the steps to change the default MaxTemplateCacheSize from 500 templates to 10 to make sure the 3.5 GB limit is not violated.

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Slow Performance in IDE when Opening or Checking In Objects

It is possible that you may experience slow performance in the System Platform IDE when opening or checking in objects. There could be various reasons why the performance within the IDE could be slow, including compatibility issues with newer version of Microsoft SQL Server.

This tech note provides steps to address the issue from the database setting perspective.

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Error: Could not load file (0x7e) C:\HardDisk\Drv\.DLL on Embedded View

When working on an embedded Edge viewer, you may encounter a message similar to the following:
"Could not load file (0x7e) C:\HardDisk\Drv\ABCIP.DLL" on embedded view"
The first step should be to verify that this file does actually exist in the specified location. If you've verified this, but the issue persists, this tech note will provide a resolution to this issue.

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Popup Window Does not Appear when Clicking “Select” in Tagname Dictionary

When working in the Tagname Dictionary in an InTouch HMI application, clicking the Select button should cause the Tag Browser popup window to appear, allowing the user to browse the existing tags in the application.

Under certain conditions, the popup window will not appear after clicking Select and the WindowMaker application will freeze up, forcing the user to shut down the application.

This issue is caused when WindowMaker attempts to open the Tag Browser on a second monitor when no second monitor is present. This tech note will provide the steps to resolve the issue.

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Resolving Multiple APPCRASH Events in Windows Event Viewer Logs from System Platform

This Tech Note details the procedure to identify and clear APPCRASH events that appear in the Windows Event Viewer for System Platform components.

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Orange Icon Won’t Go Away After Deploying InTouchView App

During deployment of an InTouchView app, it is normal behavior for an orange icon to appear over the InTouchView app instance which indicates that the files and folders are still being copied over to the remote machine.

You may experience an issue where this orange icon does not clear up on its own.

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Unable to Connect to Galaxy Using Remote IDE in a Workgroup Environment

When attempting to connect to a Galaxy database with a remote IDE within a workgroup environment, the connection may fail.

This tech note will show you how to correct the issue by updating the security policy.

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Automatically Launching an InTouch Application on Startup using a Batch File

Each time an operator needs to view their Intouch application at runtime, they must manually run the InTouch WindowViewer application. This technote will discuss how to use a batch file to automatically run the application each time Windows is restarted. There is an optional step in which you may delay opening your Intouch application, to allow time for other applications to run first.

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