R.9.39
Date Code 20111215 Reference Manual SEL-421 Relay
ASCII Command Reference
Description of Commands
The relay prompts, Clear the sequential events recorder for this
port. Are you sure (Y/N)?
when you issue the SER C or SER R
command. If you answer Y <Enter>, the relay clears the particular port SER
records.
SER CA and SER RA
The SER CA and SER RA commands clear all SER records from memory.
If you issue the SER CA or SER RA command, the relay prompts,
Clear the
sequential events recorder for all ports. Are you sure (Y/N)?
commands. If you answer Y<Enter>, the relay clears all SER records in
nonvolatile memory.
SER CV and SER RV
The SER CV and SER RV commands clear any SER data records that have
been viewed from the present port. The two commands are equivalent.
If you issue the SER CV or SER RV command, the relay prompts as follows:
Clear viewed SER records for this port. Are you sure (Y/N)? If you
answer Y <Enter>, the relay clears all SER records viewed from this port.
The data are still visible to other ports and to file transfer accesses, and they
must be cleared independently for those ports. Data not yet viewed remain
available.
SER D
The SER D command shows a list of SER items that the relay has
automatically removed. These are “chattering” elements. You can
automatically remove chattering SER elements in the SER Chatter Criteria
category of the Report settings; the enable setting is ESERDEL. See
Section 3: Analyzing Data in the Applications Handbook for more information
on SER automatic deletion and reinsertion.
If you issue the SER D command and you have not enabled automatic
removal of chattering SER elements (Report setting ESERDEL), the relay
responds,
Automatic removal of chattering SER elements not enabled.
Table 9.98 SER CA and SER RA Commands
Command Description Access Level
SER CA Clear SER data for all ports. P, A, O, 2
SER RA Clear SER data for all ports. P, A, O, 2
Table 9.99 SER CV or SER RV Commands
Command Description Access Level
SER CV Clear viewed SER data for this port. 1, B, P, A, O, 2
SER RV Clear viewed SER data for this port. 1, B, P, A, O, 2
Tabl e 9. 10 0 SE R D Comm a nd
Command Description Access Level
SER D List chattering SER elements that the relay is
removing from the SER records.
1, B, P, A, O, 2
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