Event Records; Event Types - GE P24DM Technical Manual

Chapter 13 - Monitoring and Control
2

EVENT RECORDS

General Electric devices record events in an event log. This allows you to establish the sequence of events that led
up to a particular situation. For example, a change in a digital input signal or protection element output signal
would cause an event record to be created and stored in the event log. This could be used to analyse how a
particular power system condition was caused. These events are stored in the IED's non-volatile memory. Each
event is time tagged.
The event records can be displayed on an IED's front panel but it is easier to view them through the settings
application software. This can extract the events log from the device and store it as a single .evt file for analysis on
a PC.
The event records are detailed in the VIEW RECORDS column. The first event (0) is always the latest event. After
selecting the required event, you can scroll through the menus to obtain further details.
If viewing the event with the settings application software, simply open the extracted event file. All the events are
displayed chronologically. Each event is summarised with a time stamp (obtained from the Time & Date cell) and a
short description relating to the event (obtained from the Event Text cell. You can expand the details of the event
by clicking on the + icon to the left of the time stamp.
The following table shows the correlation between the fields in the setting application software's event viewer and
the cells in the menu database.
Field in Event Viewer
Left hand column header
Right hand column header
Description
Plant reference
Model number
Address
Event type
Event Value
Evt Unique Id
The device is capable of storing up to 2048 event records.
In addition to the event log, there are two additional logs which contain duplicates of the last 10 maintenance
records and the last 10 fault records. The purpose of this is to provide convenient access to the most recent fault
and maintenance events.
2.1

EVENT TYPES

There are several different types of event:
Opto-input events (Change of state of opto-input)
●
Contact events (Change of state of output relay contact)
●
Alarm events
●
Fault record events
●
● Standard events
Security events
●
244
Equivalent cell in menu DB
VIEW RECORDS ® Time & Date
VIEW RECORDS ® Event Text
SYSTEM DATA ® Description
SYSTEM DATA ® Plant Reference
SYSTEM DATA ® Model Number
Displays the Courier address relating to the event
VIEW RECORDS ® Menu Cell Ref
VIEW RECORDS ® Event Value
VIEW RECORDS ® Evt Unique ID
Cell reference User settable?
01 03 No
01 04 No
00 04 Yes
00 05 Yes
00 06 No
N/A No
01 02 No
01 05 No
01 FE No
P24xM-TM-EN-2.1
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