CAN Bus Utilization

CTR Electronics goes through great efforts to make our products efficient on CAN bus bandwidth. This article highlights the average default bus utilization of supported Phoenix 6 devices. Users should keep total CAN bus utilization below 90% to prevent any unexpected behavior. Information on changing the default CAN update frequency is available in the status signal and control request documentation.

Note

Using Phoenix API will automatically start up a diagnostic server which adds a constant 0-5% total CAN bus utilization.

Device

Phoenix 5 (CAN 2.0)

Phoenix 6 (CAN 2.0)

Phoenix 5 (CAN FD)

Phoenix 6 (CAN FD) [1]

CANcoder

1.8%

1.7%

0.9%

0.9%

CANdi

N/A

2.5%

N/A

1.1%

CANdle [2]

1.5%

0.4%

0.7%

0.2%

CANrange

N/A

2.0%

N/A

1.0%

Talon FX

4.7%

4.1%

2.0%

1.8%

Talon FXS

N/A

4.2%

N/A

1.8%

Pigeon 2

5.5%

3.1%

2.5%

1.3%