4.4
LCD
4.4.1
Small
The small sized HMI is available for 1/2, 3/4 and 1/1 x 19” case. The LCD on the
small HMI measures 32 x 90 mm and displays 7 lines with up to 40 characters per
line. The first line displays the product name and the last line displays date and time.
The remaining 5 lines are dynamic. This LCD has no graphic display potential.
4.4.2
Medium
The 1/2, 3/4 and 1/1 x 19” cases can be equipped with the medium size LCD. This is
a fully graphical monochrome LCD which measures 120 x 90 mm. It has 28 lines
with up to 40 characters per line. To display the single line diagram, this LCD is
required.
4.5
LED
The LED module is a
unidirectional means of communicating
. This means that events
may occur that activate a LED in order to draw the operators attention to something
that has occurred and needs some sort of action.
4.5.1
Status indication LEDs
There are three LEDs above the LCD. The information they communicate is described
in the table below.
LED Indication
Information
Green:
Steady
In service
Flashing
Internal failure
Dark
No power supply
Yellow:
Steady
Dist. rep. triggered
Flashing
Terminal in test mode
Red:
Steady
Trip command issued
4.5.2
Indication LEDs
Section 4
Understand the local human-machine interface
20
Operator's manual
1MRK504049-UEN rev. D
RET 670
