36
Changing Baud Rate or
Communication Mode Using
Address Switches (between
Modbus and BACnet)
This procedure is only required if
Changing Communication Mode using ViewPoint (between Modbus
and BACnet)
fails and the PowerScout needs to be returned to a particular communications protocol and
baud rate.
1) Power down the PowerScout (disconnect all voltage leads or the USB cable).
2) Set the rotary
Address
switches to “
F
” and “
F
”.
3) Power up the PowerScout (connect the black & red voltage leads to power or connect the USB
cable).
4) Set
LSB
to one of the following communication modes:
LSB Address
Switch
Communication Mode
RS-485 LED
COM LED
1
Modbus*
Red
On
Off
2
BACnet
Red
On
Red
On
*Factory Default
5) Next set
MSB
to one of the following baud rates:
MSB
Address
Switch
Baud Rate
PhaseChek
LED CT1
PhaseChek
LED CT2
PhaseChek
LED CT3
1
9600*
Off
Off
Green
2
19200
Off
Green
Off
3
38400
Off
Green
Green
4
57600 (Modbus only)
Green
Off
Off
5
76800
Green
Off
Green
6
115200 (Modbus only)
Green
Green
Off
*Factory Default
After powering up the PowerScout 3037, you will have 10 seconds to make changes. However, every
time a rotary switch is changed, the 10 second timer resets. After 10 seconds of no switch action, the
settings take effect and the switches revert to the Modbus Address selector if in Modbus mode or MAC
address if in BACnet mode.
FAILSAFE:
If all address switches are “0,” the meter is placed in Modbus mode at 9600 baud rate.
Communication registers can be modified for baud rate and for mode.
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