DENT Instruments PowerScout 24 Operator's Manual page 20

NOTE: USB is always active on the PowerScout (and the protocol is Modbus over the USB virtual
communications port).
NOTE: If ViewPoint was installed first, it needs to be restarted following a RS-485 driver installation. If a
RS-485 port does not appear in the drop-down list, the RS-485 was not installed correctly.
1) Select USB/RS-485 (MSTP) as your communication type.
2) Select PS24.
3) When connecting with an RS-485, enter a base address that matches the switches on the
PowerScout. A USB connection ignores address switches. See Setting the Network Address Switches
below.
4) When connecting with an RS-485, select Modbus or BACnet as your communication protocol. When
communicating over USB, whether the PS24 is configured for Modbus or BACnet mode, the PS24
will communicate over the Modbus protocol.
5) Select the PC COM Port from the drop-down list. For a USB connection, select "COMxx DENT USB" in
the field, where "xx" is the port number. For an RS-485 connection using an RS-485 adapter, select
COMxx RS-485 Isolated Port (COMxx) where "xx' is the COM port number.
Default settings are used for the two remaining fields: Data Bits is 8N1 and the Baud Rate is 9600. When
BACnet is selected as your protocol an additional read-only field appears displaying the BACnet Device ID
and the default baud rate is 76800.
DENT Instruments
PowerScout 24
Prepping for Field Installation
20