Date Code 20020129
Serial Port Communications and Commands
7-9
SEL-387E Instruction Manual
SEL ASCII P
ROTOCOL
D
ETAILS
Automatic Messages
The SEL-387E Relay generates automatic messages and sends them out the serial port(s) with
the SET P setting AUTO = Y. Four different automatic messages can be displayed:
Relay startup message
Setting group change message
Relay self-test warning or failure
Event summary message
Relay Startup Message
Immediately after power is applied, the relay transmits the following automatic message:
XFMR 1 Date: MM/DD/YY Time: HH:MM:SS.SSS
STATION A
SEL-387E
=
Setting Group Change Message
The SEL-387E Relay has six different setting groups for the SET settings. The active group is
selected by the SS1 through SS6 SEL
OGIC
®
control equation variable bits, or by the
GRO n
serial port command, or the front-panel GROUP pushbutton. At the moment when the active
group is changed, the following automatic message is generated.
XFMR 1 Date: MM/DD/YY Time: HH:MM:SS.SSS
STATION A
Active Group = N
=>>
RID and TID settings for the new active group
Date and time of group change
Active setting group now being used
Note:
the SET G settings SS1 through SS6 take precedence over the
GRO n
command.
Relay Self-Test Warning or Failure
The relay automatically generates a status report whenever the self-tests declare a failure state
and some warning states.