Alarm Concept - ABB ETL600 Instruction Manual

Digital power line carrier system
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ETL600
Equipment
connected to
A
Fig. 9-1
Equipment A
-
-
-
-
-
-
Table 9-2
Legend:
9.3.1.

Alarm concept

The concept distinguishes between alarms, warnings and events.
An alarm indicates that the ETL600 system is not functioning
according to specification.
As sho
and by software processes of the
are exchanged between the local and the remote terminal.
A warning indicates that the ETL600 terminal is not in the normal
operation state. An example for this is when the ETL600 terminal
operates in a test mode.
An event is a snapshot of the alarm state of the ETL600 terminal
recorded together with date and time.
Troubleshooting
1KHW001489-EN
Equipment A
ETL600
The six major fault location areas of a PLC link
Equipment B
-
-
-
-
-
-
-
-
-
-
-
-
-
x
x
-
-
x
Fault location of an ETL600 link
Alarm present
-
Alarm absent
x
Don't care
wn in Fig. 9-2, alarms are generated by hardware components
Equipment B
RF channel A to B
ETL600
RF channel B to A
Error caused by:
-
-
-
-
-
-
-
Equipment connected to A
-
Equipment connected to B
-
x
x
x
local ETL600 terminal. Some alarms
November 2005
ABB Switzerland Ltd
Equipment
connected to
B
-
Channel B to A
Channel A to B
Equipment A
Equipment B
9-5

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