CAN Bus
A rugged, multi-master differential broadcast bus. Microcontrollers, ECUs and smart modules communicate without a host computer, using non-destructive bitwise arbitration to resolve collisions.
Type
Controller Area Network (Fieldbus)
Typical Latency
< 1ms — highly deterministic real-time communication.
Hardware Requirements
High-speed CAN transceivers, twisted differential wiring (CAN-High/Low), 120Ω terminating resistors, a dedicated CAN controller.
Security
No native security — relies on controller-level isolation or a secure-CAN firmware layer.
Typical Use Case
Lithium-ion BMS cell-balancing strings, EV powertrain logs, robotic links, diesel-generator controllers.
Connection Parameters
- Interface
- Hardware CAN controller
- Bus speed
- 125 kbps – 1 Mbps
- Topology
- Linear bus, differential signalling
- Arbitration
- CSMA/CR (collision resolution)
Need CAN Bus integration for your plant?
Our engineers configure drivers, gateways and security for this protocol as part of every Factomation deployment.