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GE Multilin 750/760 Feeder Management Relay 4-7

4 USER INTERFACES 4.2 750/760PC SOFTWARE INTERFACE

4.2750/760PC SOFTWARE INTERFACE 4.2.1 DESCRIPTION

The 750/760PC software may be used for training or testing purposes from any computer running Microsoft Windows soft-

ware. Setpoints may be edited and printed, actual values may be read, and relay operation may be simulated. The 750/

760PC software is included on the GE Multilin Products CD provided with every 750/760 relay

The software can be used to:

• Program and modify setpoints.

• Save setpoint files to a local PC and upload setpoint files into the unit.

• Read and print actual values.

• Monitor relay status.

• Plot, print, and view trending graphs of selected actual values.

• Perform waveform capture (oscillography).

• Download and playback waveforms (Simulation Mode).

• View the Event Recorder

• Get online help on any topic.

The 750/760PC software can be used “stand-alone”, without an attached 750/760 relay, to create or edit 750/760 setpoint

files for future use or testing.

4.2.2 REQUIREMENTS

The following minimum requirements must be met for the 750/760PC software to operate properly.

• Processor: minimum 486, Pentium or higher is recommended.

• Memory: minimum 4 MB, 16 MB recommended; a minimum 540 K of conventional memory for Windows 3.1

• Hard Drive: 20 MB free space required before installation of software.

• Operating System: Windows 3.1 and variants, Windows 95/98, Windows NT/2000.

The 750/760PC software is ideal for use on under-used legacy equipment. If running 750/760PC under Windows 3.1/3.11,

the following additional considerations must be addressed:

•The SHARE.EXE application must be installed.

• Close other applications (spreadsheets, word processors, etc.) before running the software to eliminate any problems

that arise from low conventional memory.

4.2.3 HARDWARE CONFIGURATION

The 750/760PC software communicates with the 750/760 via the front panel RS232 port or the rear terminal RS485 ports.

To communicate with the relay via the front RS232 port, a standard “straight through” serial cable is used. The DB-9 male

end is connected to the relay and the DB-9 or DB-25 female end is connected to the computer for COM1 or COM2, respec-

tively.

To communicate with the relay via the rear RS485 ports, the GE Multilin F485 RS232/RS485 Converter box is needed. The

F485 converter box is connected to the relay using a “straight-through” serial cable. A shielded twisted pair (20, 22 or 24

AWG) cable is used to connect the converter box to the 750/760 rear terminals. The converter box (+, –, GND) terminals

are connected to the (B1, B2, B3) relay terminals for relay COM1 respectively. The line should also be terminated in an RC

network (i.e. 120 Ω, 1 nF) as described in Section 3.2.1: Typical Wiring on page 3–7.

Courtesy of NationalSwitchgear.com

GE Feeder Management Relay 750 User Manual

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