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1MRK 511 245-UUS -
650 series ANSI
Engineering Manual
The other group is the five function keys with their IEDs and the corresponding text
elements on the LCD [B].
IEC08000375 V2 EN
Figure 42:
Local HMI: Placement of local HMI operation elements
Function block LEDGEN
•
Handles an external acknowledge signal as source to acknowledge the LEDs.
•
Generates an additional pulse for general purposes whenever the LEDs are
acknowledged by the operator.
•
Generates a pulse whenever a new LED signal occurs. It may be used to trigger an
acoustical alarm.
•
Handles the timer tReset and tMax for the LED operation mode 'LatchedReset-S'.
Function block GRP1_LED1 to GRP3_LED15
Section 6
Local HMI engineering
69
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