Use Externally Provided Certificates with Web Applications

Some of the features supported by Plant SCADA use web-based applications to host content in a web browser. The following procedure is required to enable encryption for a web-based application when the certificates have been provided by a system administrator, an IT department, or a certified third-party vendor.

This procedure also assumes that Plant SCADA's Configurator is not available. If it is, you should follow the procedure described in Use SMS Certificates with Web Applications.

Note: The information provided in this topic is intended for a scenario where externally-managed certificates are used on computers contained within your SCADA system network. If you want to deliver information across multiple domains or externally via the internet, we recommend you seek professional advice on setting up an external web server.

To import externally provided certificates on a client computer

To complete this process, you need to be provided an Intermediate Certificate and a Root Certificate.

1. Copy the two CER files to an appropriate location on the client computer.

2. Right click on the Root Certificate, and select Install Certificate. This will open the Certificate Import Wizard.

3. Use the following settings.

   • Under Store Location, select Local Machine.

   • On the Certificate Store page, select Trusted Root Certification Authorities Store.

4. When you reach the last page, review the settings and click Finish.

5. You then need to repeat this process for the Intermediate Certificate.

6. Right click on the file and select Install Certificate.

7. Use the following settings in the Certificate Import Wizard.

   • Under Store Location, select Local Machine.

   • On the Certificate Store page, select Intermediate Certification Authorities Store.

8. When you reach the last page, review the settings and click Finish.

See Also

Use Externally Provided Certificates for Encryption