Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 449 / 734

Date Code 20010625 Line Current Differential Communications 10-23
and Serial Port Communications and Commands
SEL-311L Instruction Manual
The BAC command allows the relay to go to Access Level B. Enter the BAC command at the
Access Level 1 prompt:
=> BAC <ENTER>
Access Level B
When the relay is in Access Level B, the relay sends the prompt:
==>
Commands BRE n through PUL in Table 10.6 are available from Access Level B. For example,
enter the CLO command at the Access Level B prompt to close the circuit breaker:
==> CLO <ENTER>
While the relay is in Access Level B, any of the Access Level 1 and Access Level 0 commands
are also available (commands
ACC through TRI in Table 10.6).
The 2AC command allows the relay to go to Access Level 2. Enter the 2AC command at the
Access Level B prompt:
==> 2AC <ENTER>
Access Level 2
When the relay is in Access Level 2, the relay sends the prompt:
=>>
Commands CON through VER in Table 10.6 are available from Access Level 2. For example,
enter the SET command at the Access Level 2 prompt to make relay settings:
=>> SET <ENTER>
While the relay is in Access Level 2, any of the Access Level 1, Access Level B, and Access
Level 0 commands are also available (commands
ACC through VER in Table 10.6).
C
OMMAND
S
UMMARY
Table 10.6 alphabetically lists the serial port commands within a given access level. Much of
the information available from the serial port commands is also available via the front-panel
pushbuttons. The correspondence between the serial port commands and the front-panel
pushbuttons is also given in Table 10.6. See
Section 11: Front-Panel Interface for more
information on the front-panel pushbuttons.