ABB RELION REX640 Technical Manual page 1490

Measurement functions
Figure 817: Disturbance recorder file naming
The naming convention of 8+3 characters is used in COMTRADE file naming. The file
name is composed of the last two octets of the protection relay's IP number and a
running counter, which has a range of 1...9999. A hexadecimal representation is used
for the IP number octets. The appropriate file extension is added to the end of the
file name.
8.2.3.6 Deletion of recordings
The recordings can be deleted individually or all at once.
Individual disturbance recordings can be deleted with PCM600 or any appropriate
computer software, which can access the protection relay's C:\COMTRADE folder.
The disturbance recording is not removed from the protection relay's memory until
both of the corresponding COMTRADE files, .CFG and .DAT, are deleted. Both file
types may need to be deleted separately, depending on the software used.
Deleting all disturbance recordings at once is done either with PCM600 or any
appropriate computer software, or from the LHMI via the Clear > Disturbance
records menu. Deleting all disturbance recordings at once also clears the pre-trigger
recording in progress.
8.2.3.7 Storage mode
The disturbance recorder can capture data in two modes: waveform and trend
mode. The storage mode can be set individually for each trigger source with the
Storage mode parameter of the corresponding analog channel or binary channel,
the
parameter for periodic trigger.
In the waveform mode, the samples are captured according to the
Pre-trg length parameters.
1490
Stor. mode manual parameter for manual trigger and the Stor. mode periodic
1MRS759142 F
Storage rate and
REX640
Technical Manual