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4 USER INTERFACES
4.2750/760PC SOFTWARE INTERFACE
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.
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.
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.
GE Multilin
Courtesy of NationalSwitchgear.com
750/760 Feeder Management Relay
4.2 750/760PC SOFTWARE INTERFACE
4.2.1 DESCRIPTION
4.2.2 REQUIREMENTS
4.2.3 HARDWARE CONFIGURATION
4
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