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8
Operation
8.1
Overview
Fig. 11
LED array
8.2
Indicators
When the identity of device is requested, all LEDs are blinking.
8.2.1
Mode LED
LED
Description
Red
No Bluetooth MAC address stored in the configuration, no connection to the Slave
on the unit
8.2.2
CAN LED
LED
Description
Green flashing
CAN message transmitted or received
Red flashing
CAN message transmitted or received, controller in
Warning
state
Red
CAN controller in
Bus off
state
8.2.3
Bluetooth LED
LED
Description
Blue flashing (2 Hz)
Attempt to establish a Bluetooth SPP connection with another device or
established connection to the device
Blue flashing (10 Hz)
Data is transmitted or received via Bluetooth SPP.
Blue
Bluetooth SPP connection to another device is established.
8.3
Connection Behavior
If a Bluetooth MAC address is stored, the device attempts to establish a Bluetooth connection
to that address for 5 seconds. If the connection attempt fails, every 2 seconds a new attempt is
started.
The loss of a Bluetooth connection is detected after 3 seconds. The Master immediately
attempts to establish a new connection. If the Bluetooth connection to the CANblue II is lost, the
CAN controller is automatically stopped and the messages in the Tx queue and in the Rx queue
are lost. In Bridge mode all messages of all CANblue II devices are lost.
Mode
CAN
CANblue II User Manual
4.01.0126.20000 EN 3.2
