B-2
Firmware Upgrade Instructions
Date Code 20010731
SEL-352-1, -2 Instruction Manual
Execute the Show Calibration (
SHO C)
command to retrieve the relay calibration
settings. Record the displayed settings (or save them to a computer file) for possible
reentry after the firmware upgrade.
If you do not already have copies of the Relay, Global, Port, and SER settings, use the
following Show commands to retrieve the necessary settings:
SHO 1
,
SHO 2
,
SHO 3
,
SHO 4
,
SHO 5
,
SHO 6
,
SHO G
,
SHO P 1
,
SHO P 2
,
SHO P 3
,
SHO P 4
, and
SHO R
.
Issue the Password (
PAS)
command and save the original password settings in case
they are needed later.
Saving settings is always recommended; depending on the previously installed
firmware version and how the relay uses memory, the relay may not preserve settings
that existed in the relay before the upgrade.
Issue the
L_D <ENTER>
command to the relay (L underscore D ENTER) to start the
SELBoot program.
Type
Y <ENTER>
to the “Disable relay to send or receive firmware (Y/N)?” prompt
and
Y <ENTER>
to the
“
Are you sure (Y/N)?” prompt. The relay will send the
SELBoot prompt !>.
Note:
SELBoot
does not echo nonalphabetic characters as the first character of a line.
This may make it appear that the relay is not functioning properly when just the
<ENTER> key is pressed on the connected PC, even though everything is OK.
Issue
HEL <ENTER>
(
?<ENTER>
in earlier relays) to list the commands available in
SELBoot.
!>help
SELboot-3xx-R100
bau "rate" ; Set baud rate to 300, 1200, 2400, 4800, 9600, 19200, or 38400 baud
era ; Erase the existing relay firmware
exi ; Exit this program and restart the device
fid ; Print the relays firmware id
rec ; Receive new firmware for the relay using xmodem
sen ; Send the relays firmware to a pc using xmodem
hel ; Print this list
FLASH Type : 040 Checksum = 370E OK
Set up your communication connection to the highest possible baud rate. The relay will
support speeds up to 38400 baud. Use the
BAU
command (e.g.,
BAU 38400
<ENTER>
) to change the SPEED setting to the desired baud rate.
8. Make a copy of the firmware presently in the relay. This is recommended in case the
new firmware download is unsuccessful. To make a backup of the firmware, you will
need approximately 2.3 MB of free disk space. The procedure takes approximately 10
minutes at 38400 baud.
Issue the Send (
SEN <ENTER>)
command to the relay to initiate the firmware transfer
from the relay to your computer. No activity will be seen on the PC screen, because the
relay is waiting for the PC to request the first XMODEM data packet. Select the
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