8-4 489 Generator Management Relay
GE Power Management
8.2 CONFIGURATION 8 489PC SOFTWARE
8
8.2 CONFIGURATION 8.2.1 STARTUP & COMMUNICATIONS CONFIGURATION
1. Connect the computer running the 489PC software to the relay via one of the RS485 ports (see Section 2.2.13: RS485
COMMUNICATIONS PORTS on page 2–14 for wiring diagram and additional information) or directly via the RS232
front port.
2. Start 489PC. When starting, the software attempts to communicate with the relay. If communications are established,
the relay graphic shown on the monitor will display the same information as the actual relay. That is, the LED status
and display information will also match that of the actual relay.
3. If 489PC cannot establish communications, the following message will appear:
4. Select OK to edit the communications settings (or alternately, select the Communications > Computer menu item to
edit communications settings at any time. The COMMUNICATIONS/COMPUTER dialog box will appear containing the
various communications settings. The settings should be modified as follows:
• set Slave Address to match the
S1
489
SETUP\SERIAL PORTS\SLAVE ADDRESS
setpoint
• set Communication Port # to the PC port connected to the relay
• set Baud Rate to match the
S1
489
SETUP\SERIAL PORTS\COMPUTER RS485 BAUD RATE
setpoint
• set Parity to match the
S1
489
SETUP\SERIAL PORTS\COMPUTER RS485 PARITY
setpoint
• set Control Type to the type used.
Figure 8–2: COMMUNICATION/COMPUTER DIALOG BOX
5. To begin communications, click the ON button. The status section indicates the communications status. The message
“489PC is now talking to a 489” is displayed when communications are established. As well, the bottom right corner of
the 489PC window will indicate “Communicating.”
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