GE 489 - Manual (Page 40)

3-8 489 Generator Management Relay GE Multilin
3.2 SOFTWARE INTERFACE 3 USER INTERFACES
3
3.2.4 USING 489PC
a) SAVING SETPOINTS TO A FILE
Setpoints must be saved to a file on the local PC before performing any firmware upgrades. Saving setpoints is also highly
recommended before making any setpoint changes or creating new setpoint files. The following procedure illustrates how
to save setpoint files.
1. Select the File > Properties menu item. The dialog box below appears, allowing for the configuration of the 489PC
software for the correct firmware version. 489PC requires the correct software version when creating a setpoint file to
ensure that setpoints not available in a particular version are not downloaded into the relay.
2. When the correct firmware version is chosen, select the File > Save As menu item. This launches the dialog box
shown below. Enter or select the filename under which the setpoints are to be saved. All 489 setpoint files should have
the extension 489 (for example, gen1.489). Click OK to proceed.
3. The software reads all relay setpoint values and stores them in the selected file.
b) UPGRADING THE 489 FIRMWARE
Prior to downloading new firmware into the 489, it is necessary to save the 489 setpoints to a file (see Section 3.2.4: Using
489PC on page 3–8. Loading new firmware into the 489 flash memory is accomplished as follows:
1. Ensure the computer is connected to the 489 via the front RS232 port and that communications have been estab-
lished. Save the current setpoints to a file using the procedure outlined in the previous section.
2. Select the Communications > Upgrade Firmware menu item.
3. A warning message will appear (remember that all previously programmed setpoints will be erased). Click Yes to pro-
ceed or No to exit.
4. Next, 489PC will request the name of the new firmware file. Locate the appropriate file by changing drives and/or direc-
tories until a list of names appears in the list box. 489 firmware files have the following format: