
13
3.
HMI features
The REF 542plus is shown in Fig. 3.-1. This HMI features a back-illuminated LCD,
8 push buttons, several LEDs and an electronic key sensor. This new international
HMI is a part of the product release of REF 542plus, starting from release 2.5.
The resolution of the display is 320x240 (QVGA) and the display supports full
Unicode character set. Consequently, all languages, for example Chinese, can be
displayed clearly. With this HMI two different languages can be handled
simultaneously. The local language can be defined as the first language with the
related operating tool. Then, the second language becomes automatically English.
The language on the HMI can be changed from one to the other very easily.
A051327
Fig. 3.-1
REF 542plus HMI
The LCD in the SLD view provides a graphical representation of the primary
objects controlled or monitored by REF 542plus in the switchgear. The right half of
the LCD is for plain text visualization such as measurements and protection events.
The contrast level is automatically controlled for an optimum reading, it can also be
adjusted as wanted.
The HMI panel is organized in three main areas.
3.1.
Control area
The left side of the HMI panel is for primary objects control. The command buttons
and the information related to the switchgear control are placed on this area
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plus
REF 542plus
1MRS755869
Содержание REF 542plus
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