B-2 Firmware Upgrade Instructions Date Code 990215
SEL-351P Manual Técnico
6. 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 non-alphabetic characters as the first character of a line.
This may make it appear that the relay is not functioning properly, even though
everything is okay.
7. Make a copy of the firmware currently 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 SEN <ENTER> command to initiate the firmware transfer. Select the binary
XMODEM transfer and filename in your communications software. Give the file a unique
name to clearly identify the firmware version (e.g., 351P102.S19). After the transfer, the
relay will respond: “Download completed successfully!”
8. Transfer the new firmware to the relay. Issue the REC <ENTER> command to instruct the
relay to receive new firmware.
Note: If the relay is power failed during a firmware receive after the old firmware is erased,
the relay will restart in SELBOOT, but the baud rate will default to 2400.
9. Type Y to erase the existing firmware or just <ENTER> to abort.
10. The relay then prompts you to press a key and begin the transfer. Press a key (e.g.,
<ENTER>).
11. Start the file transfer by selecting the send file option in your communication software. Use
the XMODEM protocol and send the file that contains the new firmware (e.g.,
351P102.S19).
The file transfer takes approximately 10 minutes at 38400 baud. After the transfer completes,
the relay will reboot and return to Access Level 0. The following screen capture shows the
entire process.
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