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4 HUMAN INTERFACES
Startup of the 745PC software is accomplished as follows:
1.
Double-click on the 745 software icon inside the GE Multilin group or select from the Windows Start menu to launch
745PC. The 745 to PC communications status is displayed on the bottom right corner of the screen:
2.
To configure communications, select the Communication > Computer menu item. The COMMUNICATION / COM-
PUTER dialog box will appear containing the various communications settings for the local PC. These settings should
be modified as shown below:
3.
To begin communications, click on the ON button in the in the Communication section of the dialog box. The Status
section indicates the communication status. If communications is established, the message "Program is now talking to
a Multilin device" is displayed. As well, the status at the bottom right hand corner of the screen indicates "Communicat-
ing".
GE Multilin
Courtesy of NationalSwitchgear.com
Set the
Startup Mode
based on user preference. In "Communicate with Relay" mode, 745PC will attempt
to establish communications immediately upon startup. While in the "File mode /w default settings", 745PC
waits for the user to click the ON button before attempting communications – this mode is preferred when
the 745PC is being used without an attached 745 relay.
Set
Control Type
to match the type of RS232/RS485 converter. If connected through the 745 front panel
RS232 port, select "No Control Type". If connected through a GE Power Management F485 converter unit,
select "MULTILIN RS232/RS485 CONVERTOR". If connected through a modem, select "Modem". If a third-
party RS232/RS485 converter is being used, select the appropriate control type from the available list based
on the manufacturer's specifications.
Set
Parity
to match the 745 PARITY setpoint (see S1 745 SETUP). If connected through the 745 front panel
RS232 port, set to "None".
Set
Baud Rate
to match the 745 BAUD RATE setpoint (see S1 745 SETUP).
Set
Communcation Port #
to
the COM port on your local PC
or COM2). On most computers, COM1 is used by the mouse device and as such COM2 is usually
available for communications.
Set
Slave Address
to match the 745 SLAVE ADDRESS setpoint (see S1 745 SETUP).
Figure 4–7: COMMUNICATION/COMPUTER DIALOG BOX
745 Transformer Management Relay
4.2 745PC SOFTWARE INTERFACE
4.2.6 STARTUP AND COMMUNICATIONS CONFIGURATION
where the 745 relay is connected (e.g. COM1
4
4-9
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