WirelessHART Fieldgate SWG70 Additional Functions
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11.7 Upload Certificate (Web server)
11.7.1 Self-signed security certificate
A digital certificate is an electronic document that binds a public key with an identity, for
example, an organization or a user. The binding between a public key and the identity is
done by a signature. This signature can be self-signed or authenticated by a certification
authority.
Fieldgate SWG70 is delivered with a self-signed certificate for the HTTPS connection. If the
web browser is unable to verify the authenticity of a self-signed certificate, a warning mes-
sage appear:
You can proceed to the web server by clicking the appropriate option below the message.
11.7.2 Trusted security certificate
If you wish to avoid the security message, a trusted certificate must be obtained from a cer-
tification authority. This is usually connected with a fee and applies to one Fieldgate only.
On registering the web server you will receive files containing a certificate and a private key.
As your computer is probably not connected to the Internet, these should be available on its
hard disk or a USB stick before the certificate is uploaded to Fieldgate SWG70. Now proceed
as follows:
1. Click on the Additional Functions => Upload Certificate leaf to open the dialog.
2. Click Browse and select the certificate file on the hard disk or USB stick.
3. Click >> to upload the certificate.
4. The Upload Private Key option appears: Click Browse ... and select the private key on
the hard disc or USB stick.
5. Click >> to upload the private key.
6. The Change Certificate and Private Key option appears: Click >> to install the trusted
certificate.
7. Go to Additional Functions => Device Reset and perform a device reset for the
changes to take effect.
If the trusted certificate has been installed successfully, the address bar in the web browser
displays a padlock icon,.
NOTICE!
• In some cases, you must also install the certificate locally on your operating system.
– If so, click the warning message in the address bar of the web browser and select more
information on the certificate.
– In the following window, click Install Certificate and follow the instructions of the
installation wizard.
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