UMAX141100 Version 1.0.6.
Preliminary Documentation – May be subject to change
9 - 36
The CAN2BT device can be operated in two main operation modes, namely the Interface Mode and
the Bridge Mode. The Interface Mode is targeted for data logging operation and in this mode the
CAN2BT device can be accessed using Electronic Assistant.
When in Bridge Mode, the CAN receive filtering is disabled and the device accepts all incoming CAN
frames. The main purpose of the Bridge Mode is to use two CAN2BT devices as a wireless CAN
data bridge between two different CAN networks. When in Bridge Mode, the CAN2BT device is
transparent to the CAN bus and cannot be seen in Electronic Assistant’s list of J1939 nodes. The
device can be still accessed using the
CAN2BT Configuration
tool.
In case the module startup fails (a communication error between the CPU and the Bluetooth module
is detected), the CAN2BT device will indicate the failure by sending the following DM1 (PGN 0xFECA
/ 65226) to CAN bus on 1s intervals. In addition to the DM1, the two built-in LEDs are blinking and
not responding to user configuration nor control messages. In failure mode, the unit will be accessible
only via the CAN bus.
Condition
Lamp
SPN
FMI
OC
Src.Address
BT
module
failure
MALFUNCTION
3368
(WCM1)
31
1
0xFB
(251)
