Prerequisites for using the Web Client

Whether upgrading from a previous version or performing a clean installation, configure the System Management Server (SMS) in the Configurator settings and role management mandatory for OMI web client.

To be able to use the Web Client to display OMI ViewApps, AVEVA System Platform must be registered with AVEVA Identity Manager (AIM). Perform this action in the Configurator either during or after installation.

Before you can make OMI ViewApps available to users, you must define and deploy at least one instance of a WebViewEngine. Assigning OMI ViewApp instances to a WebViewEngine makes them available from the Web Client. For more information, see Prepare to deploy a ViewApp: assign a ViewApp to an engine in the OMI help.

Note: If you customize the website name in the Configurator under AVEVA Web Client Settings, the default Web Client landing page link provided in WebViewEngine does not work.

After upgrading from an older version to System Platform 2026, you must post upgrade, configure SMS, settings and role management.

Post-upgrade, the AVEVA System Platform Identity Manager Registration plugin remains in a non configured state. To complete the setup, reconfigure this plugin so that the new https://<servername>/avevaweb site is properly registered with AVEVA Identity Manager (AIM).

Note: When upgrading AVEVA Operations Management Interface (OMI), the user performing the upgrade is responsible for adding users to the appropriate Windows local groups (AVEVAWebRWUsers or AVEVAWebROUsers). Only users who belong to these groups can access the web application.

Required web browsers

The Web Client is supported with the latest versions of the Google Chrome and Microsoft Edge web browsers.

Preparation needed on remote devices

Any remote device where you will be using the Web Client to run InTouch HMI applications and OMI ViewApps must have a security certificate installed. This security certificate ensures private communication between the remote device and the ViewEngine, enhancing the security of your data.

A remote device is any device that is not part of the same System Platform installation as the platform that hosts the WebViewEngine. This includes:

• Computers that have System Platform installed but point to a different System Management Server than the one that the platform hosting the WebViewEngine uses. This should occur only if you have two completely separate System Platform installations and want to access the Web Client on one of those installations from a device hosting the other installation.

• Any device, such as a computer, workstation, tablet, or phone, that does not have System Platform installed.

Depending on procedures and policies at your organization, this security certificate may be installed by the IT department on all eligible remote devices, or users may need to install the certificate themselves before using the Web Client for the first time. For instructions on installing the certificate on a Windows device, see Install a security certificate on Windows.

Note: For more information on security certificates, ensure to check the user documentation applicable to your operating system.