5.5 Operation principle
5.5.1 Local HMI
IEC12000175 V1 EN
Figure 7: Local human-machine interface
The LHMI of the IED contains the following elements:
• Display (LCD)
• Buttons
• LED indicators
• Communication port for PCM600
The LHMI is used for setting, monitoring and controlling.
5.5.1.1 Display
The LHMI includes a graphical monochrome display with a resolution of 320 x 240
pixels. The character size can vary. The amount of characters and rows fitting the view
depends on the character size and the view that is shown.
The display view is divided into four basic areas.
Section 5 1MRK 502 048-UEN A
Local Human-Machine-Interface LHMI
64
Technical manual
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