2.3 Web HMI
The WHMI allows secure access to the protection relay via a Web browser. When the
Secure Communication parameter in the protection relay is activated, the Web server
is forced to take a secured (HTTPS) connection to WHMI using TLS encryption.The
WHMI is verified with Internet Explorer 8.0, 9.0, 10.0 and 11.0.
WHMI is disabled by default.
WHMI offers several functions.
• Programmable LEDs and event lists
• System supervision
• Parameter settings
• Measurement display
• Disturbance records
• Fault records
• Load profile record
• Phasor diagram
• Single-line diagram
• Importing/Exporting parameters
• Report summary
The menu tree structure on the WHMI is almost identical to the one on the LHMI.
GUID-EC45286A-E8F6-44EA-B63A-9874E23BC24E V2 EN
Figure 6: Example view of the WHMI
The WHMI can be accessed locally and remotely.
Section 2 1MRS758755 A
REC615 and RER615 overview
34 REC615 and RER615
Technical Manual
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