27. Cyber security
The relay supports role based user authentication
and authorization. It can store 2048 audit trail
events to a nonvolatile memory. The non-volatile
memory is based on a memory type which does not
need battery backup or regular component ex-
change to maintain the memory storage. FTP and
Web HMI use TLS encryption with a minimum of 128
bit key length protecting the data in transit. In this
case the used communication protocols are FTPS
and HTTPS. All rear communication ports and op-
tional protocol services can be deactivated accord-
ing to the required system setup.
69
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Table 118. Supported functions
Function Web HMI PCM600
Relay parameter setting • •
Saving of relay parameter settings in the relay • •
Signal monitoring • •
Disturbance recorder handling • •
Alarm LED viewing • •
Access control management • •
Relay signal configuration (Signal Matrix) - •
Modbus® communication configuration (communication management) - •
- •
Saving of relay parameter settings in the tool - •
Disturbance record analysis •
• •
- •
Application configuration - •
configuration) •
Phasor diagram viewing • -
Event viewing • •
Saving of event data on the user's PC • •
Online monitoring - •
• = Supported
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