GE 745 Instruction Manual page 83

CHAPTER 4: INTERFACES
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Modbus addresses assigned to firmware modules, features, settings, and corresponding
data items (i.e. default values, minimum/maximum values, data type, and item size) may
change slightly from version to version of firmware.
The addresses are rearranged when new features are added or existing features are
enhanced or modified. The
downgrading the firmware is a resettable, self-test message intended to inform users that
the Modbus addresses have changed with the upgraded firmware. This message does not
signal any problems when appearing after firmware upgrades.
EEPROM DATA ERROR message displayed after upgrading/
UPGRADING RELAY FIRMWARE
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