Page 46
REM 543 Protection,
Monitoring and Control
Technical Reference Manual
Part 1, General
ABB Network Partner
Alarm channels are seen as function blocks in the machine terminal configuration:
4.1.12.1.
Non-latched alarm
In a non-latched mode, the ON signal switches between ON and OFF state texts and the
corresponding LED colours. Alarm acknowledgement (ACK) clears the last time stamp
line of the alarm view, but leaves the corresponding alarm LED state unchanged. An
event is generated on the rising and falling edge of the ON signal and by acknowledge-
ment.
Fig. 4.1.12.1.-1. Example of a non-latched alarm.
Alarm channel
Function block
Alarm channel 1
MMIALARM1
Alarm channel 2
MMIALARM2
Alarm channel 3
MMIALARM3
Alarm channel 4
MMIALARM4
Alarm channel 5
MMIALARM5
Alarm channel 6
MMIALARM6
Alarm channel 7
MMIALARM7
Alarm channel 8
MMIALARM8
alarind4
Non-latched, steady (example 1)
On text
09-24 12:40:00
On colour for steady LED
Off text
Off colour for steady LED
On text
09-24 12:40:00
On colour for steady LED
Off text
09-24 12:40:00
Off colour for steady LED
On text
On colour for steady LED
ACK
ON
ALARM
alarind5
Non-latched, steady (example 1 continues)
On text
On colour for steady LED
Off text
09-24 12:40:00
Off colour for steady LED
ACK
ON
ALARM
Off text
Off colour for steady LED