CAN Bus Controllers

STW’s CAN Bus controllers have been especially designed for the harsh environments of off-highway work. Our controllers are widely used in a variety of applications ranging from agricultural and military vehicles to oil and gas and mining equipment. Though rugged and highly reliable, our controllers are freely programmable with a unique architecture that allows you to easily expand I/O, CAN bus connectivity and memory.

Our freely programmable controllers are designed with a base configuration for I/O and CAN bus, but their unique ‘babyboard’ (expansion board) architecture allows them to be tailored to your requirements for very specific configurations of I/O.  This allows you to minimize unused capacity and maximize cost efficiency.

Product Comparison


  • Reliable – the Mean Time Between Failure is 50 years
  • Completely updated, reflecting the latest in technology
  • Flexible – easily expandable I/O (Input/Output), CAN bus and memory to suit your requirements
  • Safe – certified to international safety standards
  • Low cost of ownership – our reliability, durability and easy tailoring to your applications makes our products a great value.

Learn more about  benefits of our CAN Bus controllers here.


  • Rugged standard controllers
  • Freely programmable
  • TÜV certified to SIL (Safety Integrity Level ) 2
  • Internal diagnostics, protection against voltage overload and protection against short circuiting to ground or to supply voltage for all I/O’s
  • Extensively tested for highly demanding operating environments

Operating environment

  •  EMC shielded, 200 V/m
  •  Protection against vibration and shock
  • Temperature range of  – 40°C to + 85°C  (- 40° F to + 185° F)
  •  Sealed enclosure protects against moisture & humidity to IP65 (Ingress Protection Rating)  optional to IP67 (breathable Gore-Tex filter)


Types of CAN Bus Controllers

Freely programmable controllers: can be programmed independently with programming languages C or CoDeSys or (ESX-3XL) with Matlab/Simulink

I/O Module CAN bus Controllers: slave modules that communicate with the CANOpen communication protocol

 We can also work with you to customize the controller to your needs. Click here to learn more.

We also provide a wide range of hardware and software tools to help you in implementation as well as a range of services.

Example Applications CANBUS

  • Agricultural Vehicles
  • Military Vehicles
  • Oil and Gas Service Equipment
  • Vehicle Tracking
  • Hybrid Vehicles
  • Fire Fighting Equipment
  • Emergency Platforms
  • Electro-hydraulic steering systems (steer by wire)
  • Hydrostatic drive control (drive by wire)
  • All control functions of the working hydraulics
  • Automatic leveling and positioning of platforms
  • Engine management
  • Transmission control

Learn more about how are products are used in different industries here.

More Information