Schweitzer Engineering Laboratories SEL-749M, Инструкция по эксплуатации

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7.16
SEL-749M Relay Instruction Manual Date Code 20080918
Communications
SEL ASCII Protocol Details
HISTORY Command
Use the HIS command to view a list of one-line descriptions of relay events or
clear the list (and corresponding event reports) from nonvolatile memory.
For more information on event reports, see Section 9: Analyzing Events .
IDENTIFICATION Command
Use the ID command to extract device identification codes.
IRI Command
IRI directs the relay to read the demodulated IRIG-B time code at the serial
port or IRIG-B input.
To force the relay to synchronize to IRIG-B, enter the following command:
=>
IRI <Enter>
If the relay successfully synchronizes to IRIG, it sends the following header
and access level prompt:
Table 7.23 FILE Command
Command Description Access Level
FIL DIR Return a list of files. 1
FIL READ
filename
Transfer settings file filename from the relay to
the PC.
1
FIL WRITE
filename
Transfer settings file filename from the PC to the
relay.
2
FIL SHOW
filename
Filename 1 displays contents of the file filename . 1
Table 7.24 HISTORY Command
Command Description Access Level
HIS Return event histories with the oldest at the bottom
of the list and the most recent at the top of the list. 1
HIS n Return event histories with the oldest at the bottom
of the list and the most recent at the top of the list,
beginning at event
n .
1
HIS C Clear/reset the event history and all corresponding
event reports from nonvolatile memory. 1
Table 7.25 IDENTIFICATION Command
Command Description Access Level
ID Return a list of device identification codes. 0
Table 7.26 IRI Command
Command Description Access Level
IRI Force synchronization of internal control clock to
IRIG-B time-code input. 1
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