R.5.14
SEL-421 Relay Reference Manual Date Code 20111215
SEL Communications Protocols
Virtual File Interface
setting in effect at the time the event is triggered. Higher resolution
oscilligraphy is available in binary COMTRADE (IEEE C37.111-1999)
format at the sample rate (SRATE) and length (LER) settings in effect at the
time the event is triggered. You can use the FILE DIR EVENTS command to
display the contents of the EVENTS directory.
The 4- and 8-samples/cycle report files (files with names that begin with E or
C) are text files with the same format as the EVENT and CEVENT command
responses. Event file names start with the prefix E4_, E8_, C4_, C8_, or HR_,
followed by a unique event serial number. For example, if one event is
triggered, with serial number of “10001,” the EVENTS directory contains the
files shown in Table 5.1 2. Event oscillography in COMTRADE format
consists of three files (.CFG, .DAT, and .HDR) that conform to the
COMTRADE standard. For an example of retrieving these files see Retrieving
Event Report Data Files: Terminal on page U.4.50.
Ethernet Card Subdirectory
If an Ethernet card with the DNP3 protocol is installed into an SEL-421, the
card settings subdirectory (CARD) is accessible as a subdirectory of the
SETTINGS directory.
Table 5.12 EVENTS Directory Files (for event 10001)
File Usage
HISTORY.TXT History file; read-only
CHISTORY.TXT Compressed ASCII History file; read-only
C4_10001.TXT 4-samples/cycle Compressed ASCII event report; read-only
C8_10001.TXT 8-samples/cycle Compressed ASCII event report; read-only
E4_10001.TXT 4-samples/cycle event report; read-only
E8_10001.TXT 8-samples/cycle event report; read-only
HR_10001.CFG Sample/second COMTRADE configuration file; read-only
HR_10001.DAT Sample/second COMTRADE binary data file; read-only
HR_10001.HDR Sample/second COMTRADE header file; read-only
Table 5.13 CARD Subdirectory
Path and Filename File Description
Read Access
Level
Write Access
Level
\SETTINGS\CARD\SET_DNPn.TXT DNP custom remapping (Ethernet); n in range 1–5 1, B, P, A, O, 2 P, A, O, 2
\SETTINGS\CARD\ERR.TXT List of all error messages from the last write of a set-
tings file (SET_CC1.TXT or SET_DNPn.TXT)
1, B, P, A, O, 2 NA
To Next Page
Loading...
