CAN Bus Utilization#

CTR Electronics goes through great efforts to make our products efficient on CAN Bus bandwidth. This article highlights the average default bandwidth 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 API documentation.

Note

Using Phoenix API will automatically start up a diagnostics 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)

Talon FX

4.7%

4.1%

2.0%

1.8%

CANcoder

1.8%

1.7%

0.9%

0.9%

Pigeon 2

5.5%

3.1%

2.5%

1.3%