GUID-B681763E-EC56-4515-AC57-1FD5349715F7 V1 EN
Figure 4: LHMI keypad with object control, navigation and command push
buttons and RJ-45 communication port
2.5 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 enabled by default.
WHMI offers several functions.
• Programmable LEDs and event lists
• System supervision
• Parameter settings
• Measurement display
• Disturbance records
• Fault records
• Phasor diagram
• Signal configuration
• Importing/Exporting parameters
• Report summary
The menu tree structure on the WHMI is almost identical to the one on the LHMI.
1MRS757456 D Section 2
REF611 overview
REF611 17
Application Manual
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