1MRK 500 124-UEN Section 3
HMI500
Operation Manual 21
Distributed busbar protection REB500
Figure 11 Detailed view of measurements per zone
3.5.3 Analog input measurements
The bay units and their labels are listed in the overview dialog.
To display the values of measured variables select a device (row) and click on
“Open measurements window”, or double-click on the device (row). Up to eight
measurement windows can be open at the same time. “Arrange windows” arranges
the windows below each other.
The display can be updated either manually by clicking on “Update measurement”
or automatically by clicking on “Update cyclically”. This updates all open
measurement windows.
A warning appears in the measurement window if measurements cannot be
obtained correctly. Closing the overview window closes all the measurement
windows as well.
For the selected bay unit, the phase-angles as well as the analog measurements (see
Figure 12) are displayed. The currently valid reference channel, i.e. reference point
for displaying phase-angles, is highlighted yellow. The user can change the
reference channel by double-clicking on the desired one. The phase-angle display
is not available on the other types of bay unit.
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