Schweitzer Engineering Laboratories SEL-787 - Table 7.5 Command Response Header Definitions

7.12
SEL-787 Relay Instruction Manual Date Code 20081022
Communications
SEL ASCII Protocol and Commands
Access Level 2
When the relay is in Access Level 2, the SEL-787 sends the prompt:
=>>
See the SEL-787 Relay Command Summary at the end of this manual for the
commands available from Access Level 2.
Any of the Access Level 1 commands are also available in Access Level 2.
Command Summary
The SEL-787 Relay Command Summary at the end of this manual lists the
serial port commands alphabetically. Much of the information available from
the serial port commands is also available via the front-panel pushbuttons.
Access Level
Functions
The serial port commands at the different access levels offer varying levels of
control:
➤ The Access Level 0 commands provide the first layer of
security. In addition, Access Level 0 supports several
commands required by SEL communications processors.
➤ The Access Level 1 commands are primarily for reviewing
information only (settings, metering, etc.), not changing it.
➤ The Access Level 2 commands are primarily for changing relay
settings.
The SEL-787 responds with
Invalid Access Level when a command is
entered from an access level lower than the specified access level for the
command. The relay responds with
Invalid Command to commands that are
not available or are entered incorrectly.
Header
Many of the command responses display the following header at the
beginning:
[RID Setting] Date: mm/dd/yyyy Time: hh:mm:ss.sss
[TID Setting] Time Source: external
Table 7.5 lists the header items and their definitions.
Table 7.5 Command Response Header Definitions
Item Definition
[RID
Setting]
:
This is the RID (Relay Identifier) setting. The relay ships with the default
setting RID = SEL-787; see ID Settings on page 4.2.
[TID
Setting]
:
This is the TID (Terminal Identifier) setting. The relay ships with the
default setting TID = TRNSFRMR RELAY; see ID Settings on page 4.2.
Date: This is the date when the command response was given, except for relay
response to the EVE command (Event), when it is the date the event
occurred. You can modify the date display format (Month/Day/Year,
Year/Month/Day, or Day/Month/Year) by changing the DATE_F relay
setting.
Time: This is the time when the command response was given, except for relay
response to the EVE command, when it is the time the event occurred.
Time
Source
:
This is internal if no time-code input is attached and external if an input is
attached.