R.9.29
Date Code 20111215 Reference Manual SEL-421 Relay
ASCII Command Reference
Description of Commands
MET AMV
The MET AMV command lists automation math variables.
The last 16 automation math variables are AMV241 through AMV256. The
relay displays three places after the decimal point for these numerals. The
relay shows variables with absolute value greater than 99999.999 or less than
0.100 as scientific notation (for example, ā1.002E+22).
MET ANA
Use the MET ANA command to view the analog quantities from the
M
IRRORED BITS communications channels.
If you have not enabled the M
IRRORED BITS communications channels and the
remote sources, the relay response to this command will not include any
values. If M
IRRORED BITS communications is enabled but not communicating,
the relay will display
ERROR under the RMBA or RMBB entries, depending on
settings.
The relay shows the analog quantities with absolute value greater than
99999.999 or less than 0.100 as scientific notation (for example,
ā1.002E+22).
MET BAT
Use the MET BAT command to view the station dc monitor quantities for
Vdc1 and Vdc2.
Tabl e 9. 74 MET A MV Com mand
Command Description Access Level
MET AMV Display the last 16 automation math variables. 1, B, P, A, O, 2
MET AMV k Display the last 16 automation math variables
successively for k times.
1, B, P, A, O, 2
MET AMV A Display all automation math variables. 1, B, P, A, O, 2
MET AMV A k Display all automation math variables succes-
sively for k times.
1, B, P, A, O, 2
Table 9.75 MET ANA Command
Command Description Access Level
MET ANA Display the MIRRORED BITS communications
analog quantities.
1, B, P, A, O, 2
MET ANA k Display the M
IRRORED BITS communications
analog quantities successively for k times.
1, B, P, A, O, 2
Table 9.76 MET BAT Command
Command Description Access Level
MET BAT Display station battery measurements. 1, B, P, A, O, 2
MET BAT k Display station battery measurements succes-
sively for k times.
1, B, P, A, O, 2
MET RBM Reset station battery measurements. P, A, O, 2