Schweitzer Engineering Laboratories SEL-787, Instruction Manual, Page: 311 / 564

7.31
Date Code 20081022 Instruction Manual SEL-787 Relay
Communications
SEL ASCII Protocol and Commands
When you issue the SET command, the relay presents a list of settings one at
a time. Enter a new setting or press
<
Enter> to accept the existing setting.
Editing keystrokes are shown in Table 7.43 .
The relay checks each setting to ensure that it is within the allowed range. If
the setting is not within the allowed range, the relay generates an
Out of
Range
message and prompts you for the setting again.
When all the settings are entered, the relay displays the new settings and
prompts you for approval to enable them. Answer
Y <Enter> to enable the
new settings. The relay is disabled for as long as one second while it saves the
new settings. The SALARM Relay Word bit is set momentarily, and the
ENABLED LED extinguishes while the relay is disabled.
SHOW Command (Show/View Settings)
When showing settings, the relay displays the settings label and the present
value from nonvolatile memory for each setting class. See
Table 7.44 for the
SHOW command settings and Table 7.45 for the command format.
SET P n s TERSE Set serial port settings. n specifies the port (
1
,
2
,
3
,
4
, or
F
); n defaults to the active port if not
listed.
2
SET R s TERSE Set report settings such as Sequential Events
Recorder (SER) and Event Report (ER)
settings. 2
SET F s TERSE Set front-panel settings. 2
SET M s TERSE Set Modbus User Map settings. 2
Table 7.42 SET Command Format
Parameter Description
s Append s , the name of the specific setting you want to view and jumps to
this setting. If s is not entered, the relay starts at the first setting.
TERSE Append TERSE to skip the settings display after the last setting. Use this
parameter to speed up the SET command. If you want to review the
settings before saving, do not use the TERSE option.
Table 7.43 SET Command Editing Keystrokes
Press Key(s) Results
<Enter> Retains the setting and moves to the next setting.
^ <Enter> Returns to the previous setting.
< <Enter> Returns to the previous setting category.
> <Enter> Moves to the next setting category.
END <Enter> Exits the editing session, then prompts you to save the settings.
<Ctrl +X> Aborts the editing session without saving changes.
Table 7.41 SET Command (Change Settings) (Sheet 2 of 2)
Command Description Access Level