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Liebert OpenComms™ 485
Quick Start Guide
I
NSTALL
• Locate the Intellislot option for your Liebert equipment.
• You might need to remove a plastic Intellislot cover.
• Insert the OpenComms 485 Card into the Intellislot bay.
• Secure the card with the supplied screws.
• Connect RS-485 cable.
IGM: The card ships with IGM service enabled. (No configuration
is required for IGM communications.)
Modbus: To assign a server ID address, use the Service Terminal
to configure the card. Proceed to Steps 2 & 3.
CONNECT THE CABLE
• Locate the blue serial configuration cable (null modem) that shipped
with the card.
• Connect the configuration cable to the DB-9 port on the card and to a
COM port on your PC.
CONFIGURE THE CARD
• Use terminal emulation software,
such as HyperTerminal™, to
open a direct connection to the
card.
•Press ENTER for the Main
Menu, above right.
• Select option 1 and press enter
to access the communications
settings, shown at right.
• Enter 1 and press enter to
enable the Modbus application.
• At the next screen, enter 3 to
access the screen to set the
server ID for the OC-485 card
(the ID default is 1, but may be
any number up to 255). In the
example below right, the server
ID is “2.”
•Press Esc to return to the Main
Menu.
• Enter X and press Enter to exit
HyperTerminal, save your
changes and reboot the card.
Baud Rate: 9600
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control: None