GE Multilin 745

Upgrading Relay Firmware745
Transformer Management Relay
Interfaces
http://www.GEindustrial.com/multilin
4–22
GE Multilin
5. The enerVista 745 Setup software will request the new firmware file. Locate the
firmware file to load into the 745. The firmware filename has the following
format:
FIGURE 4–5: Firmware File Format
6. The enerVista 745 Setup software automatically lists all filenames beginning
with ‘33’. Select the appropriate file and click OK to continue.
7. 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.
8. 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.
9. 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 (if applicable)
When communications is established, the saved setpoints must be reloaded back
into the relay. See Loading Setpoints from a File on page 4–20 for details.
Modbus addresses assigned to firmware modules, features, settings, and
corresponding data items (i.e. default values, min/max 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
EEPROM DATA ERROR message displayed after
upgrading/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.
33 G 400A0 .000
Modification Number (000 = none)
GE Multilin use only
Firmware Revision
Required 745 hardware revision
Product code (33 = 745 Transformer Mgt. Relay)
NOTE