Schweitzer Engineering Laboratories SEL-2020 - Port Status Information

Date Code 20010518 Commands 5-19
SEL-2020 Instruction Manual
Table 5.4: Status Report Description
Parameter
Status
Displayed Explanation
RAM
xxxx kb
Uxx
Installed RAM size; self-test OK.
Self-test failure in specified RAM device.
ROM
OK
Uxx
ROM self-test successful.
Self-test failure in specified device.
EEPROM
OK
FAIL
EEPROM self-test successful.
Self-test failure.
FLASH
xxxx kb
Absent
FAIL
Installed nonvolatile Flash memory size; self-test
successful.
No nonvolatile Flash memory installed.
Self-test failure.
PS
OK
FAIL
Power supply voltages are acceptable.
A power supply voltage is out-of-tolerance.
SET
OK
FAIL
Settings are OK.
Settings are not valid.
BATTERY
OK
FAIL
Battery-backed clock battery was OK on last power-up.
Bad date or time reported by battery-backed clock on last
power-up. This is probably due to a low battery.
IRIG-B Input
Absent
Present
No IRIG-B input signal is detected.
IRIG-B input signal is present.
I/O Board
Absent
Installed
No I/O board is installed.
I/O board is installed.
Modem
Absent
Installed
No internal modem is installed.
An internal modem is installed.
The SEL-2020 settings become invalid when the SEL-2020 copies ROM default settings into
EEPROM. This problem occurs when new ROMs are installed in the SEL-2020. You use the
SET C command to change the settings to VALID. For any unexpected self-test failure, you
should contact the factory immediately to get the unit repaired.
Port Status Information
Status. The Port Status Column of the report indicates, for each port, whether the port is
Unused, Active (in a normal active state), Inactive (not responding), pInactive (in an inactive
state with a power-up auto-configuration pending), ConfigFail (in a power-up auto-configuration
failure state), Trans n (communicating transparently with some other port, e.g., Trans 7), or
Broadcast (communicating to all IED ports simultaneously).
Success Rate. The Success Rate column indicates the percentage of error-free messages
received; errors could be due to checksum failure or unexpected data items. The Success Rate is
reset when you issue a STATUS command, or you issue a SET P command for a port.
SET M. The SET M column indicates the state of SET M settings. ‘None’ indicates that there
are not SET M settings on the port or that the SEL-2020 is still doing power-up initialization and