Activating
signal
LED
IEC01000228_2_en.vsd
IEC01000228 V2 EN-US
Figure 17: Operating Sequence 1 (Follow-S)
GUID-107FE952-3B4C-4C01-831A-3147E652327C v3
If inputs for two or more colors are active at the same time to the same LED, the priority color it
shows is in accordance with the color described above. An example of the operation when two
colors are activated in parallel to the same LED is shown in
Figure 18.
Activating
signal GREEN
LED
IEC09000312_1_en.vsd
G
R G
G
Activating
signal RED
IEC09000312 V1 EN-US
Figure 18: Operating sequence 1, two colors
Sequence 2
(Follow-F)
SEMOD56072-47 v2
This sequence is the same as
Sequence 1
, Follow-S, but the LEDs are flashing instead of showing
steady light.
Sequence 3
LatchedAck-F-S
SEMOD56072-50 v2
This sequence has a latched function and works in collecting mode. Every LED is independent of
the other LEDs in its operation. At the activation of the input signal, the indication starts flashing.
After acknowledgment the indication disappears if the signal is not present any more. If the signal
is still present after acknowledgment it gets a steady light.
Activating
signal
LED
Acknow.
en01000231.vsd
IEC01000231 V1 EN-US
Figure 19: Operating Sequence 3 LatchedAck-F-S
GUID-CC607709-5344-4C88-AA97-6395FD335E55 v4
1MRK 502 066-UUS B Section 5
Local Human-Machine-Interface LHMI
97
Technical manual
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