Nsd600 Command Events - ABB ETL600 Instruction Manual

ABB Switzerland Ltd
Note:
The maximum number of events per block is 2600 (i.e. 2600 command
events and 2600 alarm & manipulation events). If more than 2600
events per block occur, the eldest events are deleted and the 1000
newest events of each block are preserved.
The timing information for the event recorder is provided by the real
time clock (RTC) on the RF converter type P4LT. The date and time is
set via the user interface HMI600. If the accuracy of this time setting
procedure and the RTC is not sufficient, an external synchronization
source can be used (e.g. from a GPS receiver).
In case of a power supply failure the RTC is buffered for more than 24
hours.
The events are displayed by means of the HMI600. There are two
views available: a text based view and a graphic view. The graphic
view gives the possibility to compare files with event information from
different equipment on one display.
3.7.2.

NSD600 Command Events

The event recorder acquires the timing information of all commands
when they appear on the TPE DSP on the P4LT interface (delay of
inputs/outputs Teleprotection Interface and TDM-bus not considered !).
This means that the commands are recorded as they appear on the
transmission channel (Tx/Rx). The times when the commands appear
at the I/Os of G4AI may be calculated, if required (according to the
programmed input delay/prolongation times and output prolongation
time of the command).
The command entry in the event recorder listing is "Tx/Rx Command
A/B/C/D On/Off". In order to distinguish between two teleprotection
equipment TPE1 and TPE2, the corresponding designation is added
beforehand (i.e. "TPE1 Rx Command A off".
The following events are recorded as NSD600 command events:
•
Start time and end time of all commands transmitted
•
Start time and end time of all commands received
•
Start and end time of an unblocking pulse
•
Start time and end time of the activation of the configured "Start"
input(s)
All these events are stored in the same block. The maximum number
of command events is 2600.
To upload the command events from the ETL600 equipment use:
Equipment / Commissioning and maintenance / Event recorder /
Upload events.
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1KHW001489-EN
The NSD600 command and alarm, warning &
manipulation events of TPE1 and TPE2 are recorded
in the same event recorder memory.
November 2005
ETL600
Structure and Function