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Siemens AG
Entry type: FAQ Entry ID: 103528224, Entry date: 01/09/2018
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How do you install the certificate for the standard website of the web browser of your S7-1500 CPU?

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In the following we explain how to import the certificate with the Internet Explorer and with Mozilla Firefox.

Instructions
If you cannot open the standard website of the web browser of your S7-1500 CPU and instead you get this message:

  • "There is a problem with the security certificate of the website",

then go to the Welcome page and download the Siemens security certificate.

Importing the certificate with the Internet Explorer

  1. On the Welcome page of the S7-1500 CPU click the "download certificate" button.
    Note
    If you use a self signed certificate for your S7-1500 CPU with FW >= 2.0, the "download certificate" button is disabled. In this case, export the certificate from TIA Portal. Further informations you will find in our FAQ:
    Why is there no web server certificate stored in the TIA Portal V14?


Figure 1

  1. The "File download - Security warning" dialog opens. Click "Save" and save the certificate in a folder on your hard disk.
  2. Open the Windows Explorer and navigate to the folder where you have stored the certificate.
  3. Open the certificate and click "Open" in the dialog that opens.
  4. Go to the "General" tab and click "Install Certificate...".


Figure 2

  1. The "Certificate Import Wizard" opens. Click "Next".
  2. Select the function "Place all certificates in the following store" and then click "Browse...".
    Note
    Browsing the certificate stores available might take a few minutes.


Figure 3

  1. In the selection window you select the certificate store "Trusted Root Certification Authorities" and click "OK".


Figure 4

  1. Click "Next" and in the dialog that opens you click "Finish".


Figure 5

  1. After successful download you get this message: "Import was successful". Confirm with "OK".

Importing the certificate with Mozilla Firefox

  1. On the Welcome page of the S7-1500 CPU click the "download certificate" button and save the "MiniWebCA_Cer.crt" certificate.
    Note
    If you use a self signed certificate for your S7-1500 CPU with FW >= 2.0, the "download certificate" button is disabled. In this case, export the certificate from TIA Portal.

  2. At the top of the Firefox window, click the Tool menu and select "Options".


    Figure 6

  3. Select the "Advanced" panel and then select the "Certificates" tab. Click here on the "View Certificates" button.


    Figure 7

  4. Select the "Authorities" tab in the "Certificate Manager" window and click the "Import..." button.


    Figure 8

  1. Select and open the downloaded "MiniWebCA_Cer.crt" certificate.
  2. Check the three purposes and confirm with "OK".


    Figure 9
     
  3. Confirm also the changes in the Certificate Manager with "OK".

Creation environment
The screens in this FAQ response were created with Explorer 8 and Mozilla Firefox.

Additional Keywords
AWP

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
https://www.siemens.com/cybersecurity#Ouraspiration.