9-8 745 Transformer Management Relay GE Power Management
9.3 USING 745PC 9 745 PC SOFTWARE
9
9.3.2 745 FIRMWARE UPGRADES
Prior to downloading new firmware to the 745, it is necessary to
save
the 745 setpoints to a file (see previous
section). Loading new firmware into the 745’s
flash
memory is accomplished as follows:
1. Select the
Communications > Update Firmware
menu item.
2. The following warning message will appear. Click Yes to proceed or No to abort.
3. Next, 745PC requests the name of the file containing the new firmware. Locate the appropriate file(s) by
changing drives and/or directories until a list of file names appears in the file list box. File names for
released 745 firmware have the following format:
Figure 9–10: 745 FIRMWARE FILE FORMAT
4. The 745PC program automatically lists file names beginning with
33
. Click on the appropriate file name
such that it appears in the
File Name
box. Click
OK
to continue.
5. 745PC will prompt with the following dialog box. This will be the last chance to cancel the firmware
upgrade before the flash memory is erased. Click
Yes
to continue.
6. Upon completion the program place the relay back into “normal mode”.
7. Upon successful updating of the 745 firmware, the next step is reloading the saved setpoints back to the
745. See the following section for details.
33 D 250 A4 .000
Modification Number (000 = none)
GE Power Management use only
Firmware Revision
Required 745 hardware revision
Product code (33 = 745 Transformer Mgt. Relay)
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