P.B.8
SEL-411L Relay Protection Manual Date Code 20151029
Firmware Upgrade Instructions
Upgrade Procedure
Method Two: Using a
Terminal Emulator
These instructions assume you have a working knowledge of your PC terminal
emulation software. In particular, you must be able to modify the serial
communications parameters (data speed, data bits, parity, and similar
parameters), disable any hardware or software flow control in the computer
terminal emulation software, select a transfer protocol (1K Xmodem, for
example), and transfer files (send and receive binary files).
The programs (firmware) that run in the SEL-400 series relays reside in Flash
memory. To load new firmware versions, follow these instructions. The
SEL-400 series relays have two programs that you may need to upgrade: the
regular, or “executable” program and the SEL
BOOT program.
A Obtain Firmware File
The firmware file is usually provided on a CD-ROM. Locate the firmware file
on the disc. The file name is of the form Rnnn4xx, where Rnnn is the firmware
revision number, 4xx indicates the relay type, and .s19 or .z19 is the firmware
file extension. Copy the firmware file to an easily accessible location on the PC.
Firmware is designed to be used with specific relays. A list of relay serial
numbers is provided as part of the firmware upgrade package. The firmware
provided is for use with the listed relays only. Attempts to upgrade relays not
listed might not be successful and can result in relay failure.
B Prepare the Relay
If the relay is in service, follow your company practices for removing a relay
from service. Typically, these practices include disabling input and output
control functions.
C Save Settings and Other Data
It is possible for data to be lost during the firmware upgrade process. Follow
the steps in this section carefully to ensure that important data are saved.
Enter Access Level 2
Step 1. Using the communications terminal, at Access Level 0 type
ACC <Enter>.
Step 2. Type the Access Level 1 password and press <Enter>.
You will see the Access Level 1 => prompt.
Step 3. Type 2AC <Enter>, and then type the correct password to go
to Access Level 2.
You will see the Access Level 2 =>> prompt.
For more information, see Making an EIA-232 Serial Port
Connection in the appropriate SEL-400 series relay section.
View FID
Step 4. Type STA A <Enter> to view the SEL-400 series relay status
and firmware identifier (FID). The results of a typical STA A
command are shown in Figure B.4.
Note the FID identifier number for use in Download Existing
Firmware to Your Computer.
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