P.15.58
SEL-411L Relay Protection Manual Date Code 20151029
ASCII Command Reference
Description of Commands
Use the TEST DB 1 command to override any value in the relay database.
You must understand the relay database structure to effectively use the TEST
DB command.
Values you enter in the relay database are override values. Use the TEST DB
command to write override values in the database accessed through the Fast
Message Data Access operations.
The database address addr can be any legitimate decimal or hexadecimal
address. (A hexadecimal address is a numeral with an “h” suffix or a “0x” prefix.)
You can enter the override value value1 as an integer, a floating-point number
(which overrides two registers), a character (which must be in single quotes),
or a string (which must be in double quotes and overrides the number of
registers corresponding to the length of the string).
If a date/time stamp is also provided (M D Y h m s), the relay will change the
static state given and, for any bits being changed by this operation, queued
entries will be pushed with the provided date/time stamp. If no queue is
associated with the database region (determined by addr), the date/time stamp
will be ignored.
The order that the date should be entered on the command line depends upon
the DATE_F (Global) setting. For example, if DATE_F := DMY, you would
enter TEST DB vdev addr value D M Y h m s.
While there are active test data, the relay asserts Relay Word bit TESTDB.
TEST DB OFF
Use the TEST DB OFF command to end the testing session and remove the
override values. The relay returns the database registers to the pretest values.
TEST DB2
The TEST DB2 command is used to test communication protocols that make
use of the CADI2 Interface.
TEST DB2
Other than Fast Message Protocol, all the communication protocols supported
by the relay (DNP3, IEC 61850) retrieve data from a storage area called the
Ta b l e 1 5.1 55 TES T D B Co m m an d
Command Description Access Level
TEST DB Display present override values by virtual
device number and address.
1, B, P, A, O, 2
TEST DB 1 addr
value1
Write new data value1 to the database at an
address addr.
B, P, A, O, 2
TEST DB 1 addr
value1 M D Y h m s
Write new data value1 to the database at an
address addr and include the provided date/
time stamp M D Y h m s
B, P, A, O, 2
Table 15.156 TEST DB OFF Command
Command Description Access Level
TEST DB OFF Clear all override testing values from all virtual devices. B, P, A, O, 2
TEST DB OFF 1 Clear all override testing values from Virtual Device
1 (the relay).
B, P, A, O, 2
TEST DB OFF 1
region
Clear all override testing values from the region
region in Virtual Device 1 (the relay).
B, P, A, O, 2