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GE Multilin 750/760 Feeder Management Relay 4-11

4 USER INTERFACES 4.2 750/760PC SOFTWARE INTERFACE

4.2.6 USING 750/760PC

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. To save setpoints to a file on the local

PC, follow the procedure below.

1. Select the File > Properties menu item. The dialog box below appears, allowing for the configuration of the 750/

760PC software for the correct firmware version. 750/760PC needs to know the correct version when creating a set-

point file so 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 following dialog

box. Enter the filename under which the setpoints are saved in the File Name box or select any displayed file names to

update them. All 750/760 setpoint files should have the extension 750 or 760 (for example, motor1.750). Click OK to

proceed.

3. The software reads all the relay setpoint values and stores them to the selected file.

b) UPGRADING THE 750/760 FIRMWARE

Units with bootware versions earlier than 3.00 must be set to a Baud Rate of 9600 and a Slave Address of 1 before

downloading new firmware. The bootware version can be checked with the

A5 PRODUCT INFO ÖØ REV CODES ÖØ

BOOTWARE REV actual value.

Prior to downloading new firmware into the 750/760, it is necessary to save the setpoints to a file on the local PC (see the

section above for details). Loading new firmware into the 750/760 flash memory is accomplished as follows:

1. Ensure the local PC is connected to the 750/760 via one of the RS485 ports or the front RS232 port and that commu-

nications are established. 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). If you have not

yet saved the current setpoints to a file, click No to exit. Otherwise, click Yes to proceed.

NOTE

Courtesy of NationalSwitchgear.com

GE Feeder Management Relay 750 User Manual

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