Sel SEL-421 - Test Fm dem; Test Fm off; Fast Meter Status Byte

R.9.55
Date Code 20111215 Reference Manual SEL-421 Relay
ASCII Command Reference
Description of Commands
When you display Fast Meter data overrides with the TEST FM command,
the relay shows the item label, and override values.
To force a value, use the TEST FM label value1 value2 command. The item
label label is any analog channel label in the Fast Meter configuration (if
available), any digital element label (from the DNA command), and any status
element label (from the BNA command) except the TEST and FMTEST
items.
The value value1 can be logical 0 or logical 1 for digital and status elements,
or a floating-point value for all meter quantities. All meter values are in
primary units. For meter items that report a pair of values in the Fast Meter
message, value1 is the magnitude and value2, if provided, is the angle. If you
do not specify value2, the relay uses an angle of 0.
When you have successfully added a new Fast Meter test value (for example,
TEST FM IA1 3.7 0.0), the relay responds,
Override Added.
The relay asserts Relay Word bit TESTFM while any Fast Meter override data
are present in the relay.
Fast Meter Status Byte
Bits labeled TEST and FMTEST reside in the Fast Meter status byte. If any
item within the Fast Meter message is in test mode, the relay sets the TEST
bit. Similarly, if any item in any Fast Meter message is in test mode, the
FMTEST is set in all three Fast Meter responses.
TEST FM DEM
Use the TEST FM DEM command to insert override values in Fast Meter
demand metering.
TEST FM OFF
Use the TEST FM OFF command to remove override values. The relay
returns the Fast Meter registers to the pre-test values.
When you have successfully removed a Fast Meter test value (for example,
TEST FM IA1 OFF), the relay responds,
Override Removed. When an
attempt to remove an FM test value fails, the relay responds,
Override Not
Found
. When removing all FM test values (for example, TEST FM OFF), the
relay responds,
All Overrides Removed.
Tabl e 9. 14 3 TE ST F M DEM Co mma n d
Command Description Access Level
TEST FM DEM
label value1
Write new data value1 to the Fast Meter
demand meter report at the item label label.
B, P, A, O, 2
Table 9.144 TEST FM OFF Command
Command Description Access Level
TEST FM label
OFF
Clear the override values for the Fast Meter
item label.
B, P, A, O, 2
TEST FM OFF Clear all override testing values from Fast
Meter.
B, P, A, O, 2