P.B.12
SEL-411L Relay Protection Manual Date Code 20151029
Firmware Upgrade Instructions
Upgrade Procedure
G Upload New Relay Firmware
Step 1. From the SELBOOT prompt !>, type REC <Enter>.
The relay responds with the prompt shown in Figure B.5. The
end of the relay response is
Are you sure you want to erase the existing firmware?
(Y/N)
Step 2. Type Y <Enter>.
The relay responds,
Erasing, and erases the existing firmware.
The front-panel LCD shows
ERASING MEMORY.
When finished erasing, the relay responds,
Erase successful,
and prompts you to press any key to begin transferring the new
firmware. The front-panel LCD shows only the SEL
BOOT
program revision number.
!>BAU 115200 <Enter>
!><Enter>
!>SEN <Enter>
Program is ready to be transmitted.
Begin transfer at PC.
Transfer completed successfully.
!>REC <Enter>
Caution! - This command erases the device firmware.
If you erase the firmware, new firmware must be loaded into the device
before it can be put back into service.
Are you sure you want to erase the existing firmware? (Y/N) Y <Enter>
Erasing
Erase successful
Press any key to begin transfer, then start transfer at the PCCC <Enter>
Figure B.5 Transferring New Firmware
Step 3. Press <Enter> to begin uploading the new firmware.
Step 4. Start the Transfer or Send process in your terminal emulation
program.
Use 1K Xmodem for fast transfer of the new firmware to the
relay.
Step 5. Point the terminal program to the location of the new firmware
file (the file that ends in .s19 or .z19).
Step 6. Begin the file transfer.
The usual transfer time at 115200 bps with 1K Xmodem is
about 10 minutes. The LCD screen shows
SELBOOT Ryyy
LOADING CODE
while the relay loads the new firmware.
Step 7. Wait for firmware load completion.
If the relay responds with the message
Transfer failed —
Model mismatch
, please refer to Troubleshooting.
When finished loading the new firmware, the relay responds,
Transfer completed successfully and displays the
SEL
BOOT prompt !>. The LCD screen displays SELBOOT Ryyy
SEL-4xx-Rnnn
, where yyy is the SELBOOT revision number, xx
is the particular model of the SEL-400 series relays being
upgraded, and nnn is the firmware revision number of the relay,
e.g., R100 SEL-421-R105.
NOTE: The relay displays one or
more “C” characters while waiting for
your PC terminal emulation program
to send the new firmware. If you do
not start the transfer quickly (within
about 18 seconds), the relay times out
and responds
Remote system is
not responding. If this happens,
begin again at Step G on page P.B.12.
NOTE: If relay power fails while
receiving new firmware after the old
firmware is erased, the relay restarts
in SEL
BOOT and defaults to a data
speed of 9600 bps. Continue the
upgrade procedure beginning at
Establish a High-Speed Serial
Connection on page 10 to increase the
serial connection data speed. Then
continue the firmware upgrade
process again at Step G on
page P.B.12.
To Next Page
