3-8 Communications Date Code 20011026
SEL-321/321-1 Instruction Manual
To close the circuit breaker with this command, type CLOSE <ENTER>. The prompting
message "Close BREAKER (Y/N) ?" is displayed. Then "Are you sure (Y/N)?" Typing N
<ENTER> after either of the above prompts aborts the closing operation with the message
"Command Aborted."
If the Breaker Jumper (P7: J106) is not in place, the relay responds: "Aborted: Breaker Jumper
Not in Place."
==>CLOSE <ENTER>
CLOSE <ENTER>CLOSE <ENTER>
CLOSE <ENTER>
Close BREAKER (Y/N) ? Y <ENTER>
Y <ENTER>Y <ENTER>
Y <ENTER>
Are you sure (Y/N) ? Y <ENTER>
Y <ENTER>Y <ENTER>
Y <ENTER>
Breaker CLOSED
==>
COMM
The COMM command displays integral relay-to-relay communications data. To get a summary
report, enter the command without any parameters.
=>COMM <ENTER>
COMM <ENTER>COMM <ENTER>
COMM <ENTER>
EXAMPLE: BUS B, BREAKER 3 Date: 04/11/00 Time: 10:45:08.993
SEL-321 POTT
FID=SEL-321-1-R424-V656124pb-Z001001-D20000410
Summary for Mirrored Bits Channel
For 04/05/00 17:18:12.993 to 04/11/98 10:45:08.993
Total failures 3 Last error Re-sync
Relay disabled 1
Data error 0 Longest failure 0 00:00:00.499
Re-sync 0
Underrun 1 Unavailability 0.000688 %
Overrun 0
Parity error 1
Framing error 0
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