Sel SEL-787 - Table 7.6 Command Response Header Definitions

7.17
Date Code 20150130 Instruction Manual SEL-787 Relay
Communications
SEL ASCII Protocol and Commands
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.
➤ Access Level C (restricted access level, should be used under
the direction of SEL only)
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:
Table 7.6 lists the header items and their definitions.
Command
Explanations
This section lists ASCII commands alphabetically. Commands, command
options, and command variables to enter are shown in bold. Lowercase italic
letters and words in a command represent command variables that are
determined based on the application.
Command options appear with brief explanations about the command
function. Refer to the references listed with the commands for more
information on the control function corresponding to the command or
examples of the control response to the command.
You can simplify the task of entering commands by shortening any ASCII
command to the first three characters; for example, ACCESS becomes ACC.
Always send a carriage return <CR> character or a carriage return character
[RID Setting] Date: mm/dd/yyyy Time: hh:mm:ss.sss
[TID Setting] Time Source: external
Table 7.6 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.