Schweitzer Engineering SEL-387-0, Instruction Manual

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7.18
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Serial Port Communications and Commands
SEL ASCII Protocol Details
DAT (Date)
Access Levels 1, B, 2
The DATE command displays or sets the date stored by the internal calendar/
clock. Simply typing DAT <Enter> displays the date. Set the date by typing
DATE d1 <Enter> where d1 is either mm/dd/yy or yy/mm/dd depending on
the SET G date format setting DATE_F. The following example views the
current date, verifies the DATE_F setting, and changes the date. Note that
single-digit numbers may be entered without leading zeros like the 9 in 11/9/
96.
=>> DAT <Enter>
11/11/96
=>>
SHO G DATE_F <Enter>
RELAY SETTINGS
DATE_F = MDY FP_TO = 5 TGR = 5
=>> DAT 11/9/96 <Enter>
11/09/96
=>>
EVE (Event Reports)
Access Levels 1, B, 2
Use the EVENT command to view event reports. See Section 9: Event
Reports and SER for further details on retrieving event reports.
GRO and GRO n (Setting Group)
Access Levels 1, B, 2
The GROUP command, at Access Level 1, displays the setting group variable
for the currently active setting group. Changing the variable is not permitted.
The
GROUP n command, at Levels B and 2, designates what the setting
group variable is to be ( n = 1 to 6), thereby asking the relay to change to the
setting group so designated. The relay will only make the change if the setting
group selection SEL
OGIC
control equations (SS1 through SS6) are not
assigned or are not asserted. The following example verifies the existing group
variable, changes it, and then waits for the automatic message when the setting
group changes. The variable must be changed for a certain number of seconds
as specified by the TGR setting (under SET G) before the new settings are
enabled.
=>> GRO <Enter>
Active Group = 1
=>>
GRO 2 <Enter>
Change to Group 2
Are you sure (Y/N) ?
Y <Enter>
=>>
The GROUP command does not clear the event report buffer. If the active
group is changed, the relay pulses the
ALARM
output contacts and generates the
following automatic message:
XFMR 1 Date: 03/13/97 Time: 14:33:49.109
STATION A
Active Group = 2
=>>
NOTE:
After setting the date, allow
at least 60 seconds before powering
down the relay or the new setting may
be lost.
NOTE:
The relay will be disabled
momentarily while the change in
groups takes place.