14.33
Date Code 20171006 Instruction Manual SEL-400 Series Relays
ASCII Command Reference
Command Description
HIS CA and HIS RA
The HIS CA and HIS RA commands clear all history data and event reports
from memory. Use these commands to completely delete high-resolution/event
report data captures.
If you issue the HIS CA and HIS RA commands, the relay prompts you with Are
you sure (Y/N)?.
If you answer Y <Enter>, the relay clears all history data and
event reports. The relay resets the event report number to 10000.
ID
Use the ID command to extract relay identification codes.
Each line of the ID command report contains an identification code and a line
checksum. The relay presents these codes in the following order:
FID: the Firmware Identification string
BFID: the Boot Firmware Identification string
CID: the checksum of the firmware
DEVID: the RID string as stored in the relay settings of the IED
DEVCODE: a unique Device Code (for Modbus identification purposes)
PARTNO: the Part Number
SERIALNO: the serial number of the relay
CONFIG: abcdef
The designator positions indicate a specific relay configuration:
“a” represents the nominal frequency, where 0 = N/A, 1 = 60 Hz, and
2=50 Hz.
“b” represents the phase rotation, where 0 = N/A, 1 = ABC, and 2 = ACB.
“c” represents the phase input current scaling, where 0 = N/A, 1 = 5 A,
and 2 = 1 A.
“d” represents the neutral input current scaling, where 0 = N/A, 1 = 5 A,
2=1A.
“e” represents the voltage input connection, where 0 = N/A, 1 = Delta,
and 2 = Wye.
“f” represents the current input connection, where 0 = N/A, 1 = Delta, and
2=Wye.
SPECIAL: the Special Configuration Designators—a mechanism for antici-
pating future product enhancements
Table 14.77 HIS CA and HIS RA Commands
Command Description Access Level
HIS CA Clear all event data for all ports. P, A, O, 2
HIS RA Clear all event data for all ports. P, A, O, 2
Table 14.78 ID Command
Command Description Access Level
ID Return a list of relay identification codes. 0, 1, B, P, A, O, 2
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