ABB Relion 670 series - IEEE 1686 Cyber Security Compliance

LED operation mode LatchedAck-F-S
IEC08000397.vsd
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= Steady = FlashIllumination =>
IEC08000397 V1 EN-US
Figure 53: LHMI: LED operation mode LatchedAck-F-S / Base
The LatchedAck-F-S mode is used to indicate unconfirmed alarms or warnings. On
a binary On signal (steady or pulse), the LED enters a flashing state. If
acknowledged and if the signal is still On, the LED transitions into a steady state. If
the signal at this point is Off, the LED is switched off (for this color). SeeFigure 53
for details.
IEC08000398.vsd
= Steady = FlashIllumination =>
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Y
G
R
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Ack
IEC08000398 V1 EN-US
Figure 54: LHMI LED operation mode LatchedAck-F-S Ack Prio / 1
Each LED has one binary input for each of the colors: red, yellow and green
representing high, medium and low priority respectively. Each priority also applies
to the presentation of the state (acknowledged or unacknowledged) of each color.
Excluding Off signals, the presentation of a state of higher priority always
overrides the presentation of any state of lower priority.
See
Figure 54 and Figure 55 for these two principles.
Section 7 1MRK 511 398-UEN C
Local HMI engineering
90 670 series 2.2 IEC
Engineering manual