BECKWITH ELECTRIC M-6280A, Instruction Book

Page: 239 / 462

M-6280A Instruction Book
4–48
Optional Bluetooth
®
The Bluetooth option enables wireless access to the
M-6280A. Utilizing the Bluetooth wireless feature the
user is able to configure the control, read status and
metering values, as well as change setpoints. The
following lists the initialization scheme and setpoint
options available for Bluetooth.
The M-6280A provides generic serial Bluetooth
service. The user must select the generic serial
service among any other listed services, if the user’s
Bluetooth device doesn’t automatically recognize
the available service.
The following features on the M-6280A are available
to the user:
• Enable/Disable – The user can enable or
disable Bluetooth functionality.
• Reset – The Bluetooth can be reset to
Beckwith factory default values.
• Authentication – The device can be
authenticated for security purposes, if
enabled, the user can select a passkey
to connect to the device.
• Passkey – If authentication is enabled, the
customer can assign up to a maximum
of 16 alphanumeric characters as a
passkey. The passkey is also used for data
encryption. The data Encryption strength
is 128 bits if a full 16 character passkey is
used. Using less than 16 characters will
reduce the encryption level making the
port less secure. It is recommended to
use the full 16 characters for this reason.
• Friendly Name – The user can give the
Bluetooth his/her preferred name, which
can be a maximum of 20 characters,
including alphanumerals as well as the
‘_’ and ‘-‘ characters.
• Mode – The following configurations are
available for the Bluetooth Mode:
- Mode 0, the device is discoverable
and connectable to any client
station. (This Mode 0 is not the
same Mode as specified in NIST
800-121).
- Mode 1, the device is non-
discoverable but it is connectable
to any client station that knows the
control Bluetooth device address
indicated under "Control BT Device"
in the HMI menu.
In order to use Mode 1, it is recommended to
use SENA SD-1000V USB Bluetooth adapter
with CapTalk software. The Bluetooth adapter is
automatically configured by CapTalk. Therefore, do
not use the CD that is included with the SD-1000V
USB Bluetooth adapter.
• Protocol – MODBUS or DNP.
Bluetooth Module Initialization

NOTE
: For first time Bluetooth module use, the
Bluetooth module needs to be reset
to ensure that the Bluetooth module
functions according to the Beckwith
factory values.
Bluetooth Initialization Overview
Following a control power cycle, the M-6280A
hardware is checked for Bluetooth by sending an
AT command and waiting for an "OK" response.
If no response is received, a "Bluetooth not
present" message will be displayed on the HMI.
If an "ERROR" message is received, Bluetooth is
reset to factory default values and the hardware is
checked again.
The Bluetooth device information, i.e., BD address,
friendly name, mode of device, internal operation
state and status of authentication and encryption
features will be retrieved, if an "OK" message is
received during the control bootup.
The Beckwith factory default values for device
information are:
• Friendly Name – [M6280A-Serial Number*]
• Mode of Device – [Mode3]
• Internal operation status – [Standby]
• Authentication – [None]
• Encryption – [None]
The retrieved Bluetooth device information is
compared to the factory defaults, if they are not the
same; they are forced to the default values. If internal
operation status is not standby, an AT+BTCANCEL
command is issued to force standby status. The
mode is set by issuing a AT+BTMODE command.
The friendly name is set by AT+BTNAME. The
device is now in connectable mode, hence the
user can use the Bluetooth device to connect to the
M-6280A using the generic serial service.