ABB RTU500 series User Manual page 71

RTU500 series Remote Terminal Unit
1 Select the description of the certificate to upload in the column "Certificate description". In the
selection all in RTUtil500 configured entries of the certificate store appear. The selection text is
the descriptive name set in RTUtil500 as explained in chapter about the RTUtil500 configura-
tion.
2 Select a certificate file by dropping the file on the lower area or by using the file open dialog that
appears when clicked with the mouse. The certificate file must be in PKCS#12 format with the
file ending ".p12".
3 Enter the private key passphrase by pressing the lock symbol on the left side. When pressed a
dialog appears to enter the passphrase. The passphrase is used to decrypt the private key of
the certificate after the upload. For storing on the memory card the private key is re-encrypted
with a memory card specific key. The enter passphrase is not stored on the RTU500 series.
When all steps are finished the certificate can be uploaded by pressing the upload button (see figure
below). The upload button appears not before all required information are set.
Figure 91: Start certificate upload
When the upload is finished the RTU500 series has to be restarted to activate the certificate. It may
be necessary to restart the Web client as well, to recognize the new certificate in the client. After a
successful upload and restart the certificate management looks like shown in the next figure. The
upper area contains now the information about the uploaded certificate and the certificate error due
to the missing CA is not shown anymore.
Secure Web server access
Certificate handling
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