7.19
Date Code 20020903 SEL-587Z Instruction Manual
ASCII Command Reference
Command Definitions
The relay latches all self-test warnings and failures in order to capture
transient out-of-tolerance conditions. To reset the self-test statuses, use the
STA C command from Access Level 2:
=>>STA C <Enter>
The relay responds:
Reboot the relay and clear status
Are you sure (Y/N) ?
If you select “N” or “n,” the relay displays “Canceled” and aborts the
command.
If you select “Y,” the relay displays “Rebooting the relay.”
The relay then restarts (just like powering down, then powering up relay), and
all diagnostics are run again before the relay is enabled.
Refer to Relay Self-Tests on page 10.17 in Section 10: Testing and
Troubleshooting for self-test thresholds and corrective actions.
TAR (Target)
Access Levels 1, 2
The TAR command remaps the front-panel targets to display Relay Word bit
information. Table 7.7 on page 7.20 shows the Relay Word bits, and Target
LEDs on page 8.3 in Section 8: Front-Panel Interface shows the targets. The
four top row targets correspond to the four left-most Relay Word bits, and the
bottom four targets correspond to the four right-most Relay Word bits.
The TAR command format is:
TAR m n
Table 7.6 STA Command
Command Row Column Definitions
FID Firmware identifier string.
It identifies the firmware revision.
CID CID is the firmware checksum identifier.
OS Offset displays measured dc offset
voltages in millivolts for the current channels.
The MOF (master) status is the dc offset in the
A/D circuit when a grounded input is selected.
PS Power Supply displays power supply voltages
in Vdc for the power supply outputs. The +5V_REG
and –5V_REG are regulated voltages for the A/D
circuit. VBAT displays the Real Time Clock battery
voltage.
TEMP Displays the temperature in degrees
Celsius. The temperature sensor is an output
of the voltage reference in the A/D circuitry.
RAM, ROM, CR_RAM
(critical RAM), and EEPROM
These tests verify the relay memory components. The
columns display OK if memory is functioning properly;
the columns display FAIL if the memory area has failed.
W (Warning) or F (Failure) These are appended to the displayed value
to indicate an out-of-tolerance condition.
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