GE 745 Instruction Manual page 82

Transformer protection system
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UPGRADING RELAY FIRMWARE
Note
NOTE
4–28
 Locate the firmware file to load into the 745.
The firmware filename has the following format:
The EnerVista 745 Setup software automatically lists all filenames beginning with '33'.
 Select the appropriate file and click OK to continue.
The software will prompt with another Upload Firmware Warning window. This will be the
final chance to cancel the firmware upgrade before the flash memory is erased.
 Click Yes to continue or No to cancel the upgrade.
The EnerVista 745 Setup software now prepares the 745 to receive the new firmware file.
The 745 will display a message indicating that it is in Upload Mode. While the file is being
loaded into the 745, a status box appears showing how much of the new firmware file has
been transferred and how much is remaining, as well as the upgrade status. The entire
transfer process takes approximately five minutes.
The EnerVista 745 Setup software will notify the user when the 745 has finished loading
the file.
 Carefully read any displayed messages and click OK to return the main
screen.
Cycling power to the relay is recommended after a firmware upgrade.
After successfully updating the 745 firmware, the relay will not be in service and will
require setpoint programming. To communicate with the relay, the following settings will
have to be manually programmed.
SLAVE ADDRESS
COM1/COM2/FRONT BAUD RATE
COM1/COM2/FRONT PARITY
When communications is established, the saved setpoints must be reloaded back into the
relay. See Loading Setpoints from a File on page 4–26 for details.
Figure 4-1: Firmware file format
(if applicable)
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: INTERFACES

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