APC Battery Management System User Manual download pdf (Page 37)

USER’S GUIDE

Battery Management System

Modbus

Modbus lets you view the Battery Management System through your

building management services interface. It is read-only.

The Modbus interface supports 2-wire RS-485 with the following pin-out:

• Pin 2: TX/RX +

• Pin 3: TX/RX -

• Pin 5: GND

To configure Modbus using the Web interface, do the following:

• Select Modbus from the Battery System menu.

• Enter your settings.

To configure Modbus using the control console, do the following:

• Select Device Manager.

• Select Modbus.

• Enter your settings, including the baud rate at which your Modbus is

operating, either 9600 or 19200.

To use Modbus, do the following:

• Configure the DIP switches for Modbus operation.

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APC Battery Management System User Manual Page 37