CANopen safety certifiable stack SIL 3

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In order to meet the needs of applications requiring a certification for the safety of operation, ISIT offers the only "ready-to-use" CANopen stack available on the market with safety extension, in accordance with the EN 50325-5 standard, together with its certification pack. This solution enables the rapid integration of this software component into a product subject to the requirements of IEC 61508 up to SIL 3 or DO-178C DAL B, while enjoying a ROI incomparable with a proprietary solution.

The CAN bus, initiated by Bosch in 1991 and standardized in 1993 (ISO 11898), has experienced uninterrupted growth since its inception, well beyond the scope of the automotive. It has proven by its robustness, reliability, simplicity and the low cost associated with its implementation that it was the ideal protocol for the control of real-time networks, while Ethernet could be dedicated to applications requiring a larger bandwidth for the data. In 2016, 1.5 billion CAN nodes were deployed (CiA source). The CANopen application layer provides flexible and powerful mechanisms for configuring, diagnosing and monitoring the network, with the definition of profiles making it possible to design interoperable products. The design of a system is then greatly simplified.

Safety applications, for which safety is a major issue, need to meet stringent standards and must be certified by an independent organization. This process, which generates significant costs, must be taken into account from the beginning of the project and requires strong expertise.

About the product:

ISIT has developed its own range of CANopen stacks, from a standard full CANopen up to the only "ready-to-use" certifiable CANopen stack available on the market with Safety extension, in accordance with the EN 50325-5 standard, together with its certification pack.

The ISIT CANopen Safety Certifiable Stack (ISIT_COSAFE_LC) has been specifically designed for fitting all the mandatory requirements required for critical application certification. The ISIT CANopen Safety Certifiable Stack has all required certification artifacts allowing developpers to use the advantages of the CANopen protocol in their applications while reducing efforts and risks for their critical application certification. Those artifacts include: Documentary set, unit and integration testing plans, test reports, safety manual, ... Delivered as C code source, independent of CPUS/OS platform, the ISIT_COSAFE_LS stack can also operate without an operating system (NULLOS / Bare Metal mode).

Features and Benefits:

  • Pre-certified "COTS" software usable for IEC61508 - SIL3 / ISO13849 PLd
  • Compliant with the safety extension of CANopen (CiA 304 / EN50325-5)
  • Certification Pack Available
  • OS and CPU independent architecture
  • Delivery of protocol stack as source code

Functions overview:

  • Master & Slave
  • SDO: Client/server (Segmented/Block)
  • PDO Rx/Tx : Static/Dynamic Mapping
  • SYNC
  • EMCY
  • SRDO: Safety producer / consumer – Static Mapping
  • Objects Dictionary:
    • Independent and editable before use
    • Source code generation from EDS file
  • EDS Editor provided

Delivery content:

  • CANopen Safety stack: Software provided as binary code or source code for the stack and the CAN driver
  • Certification artifacts :
    • User’s manual
    • Safety manual
  • Test reports (unit, integration, validation)
  • Sample application program for the Stack implementation
  • Support and maintenance included for the first year

Additional services:

  • Trainings on CAN/CANopen
  • Operating System and CPU porting
  • Integration with customer’s application
  • Application development

About ISIT company

ISIT offers solutions for the development and deployment of real-time embedded systems, specialized in the fields of safety and cybersecurity.

With its diversified solutions, ISIT addresses the economic sectors where embedded electronics plays a major role, such as aeronautics / space, automotive / transportation, medical, industrial, telecommunications, IoT/IIoT, whether professional or consumer. For several years, ISIT has developed a strong CANopen protocol knowledge, offering services covering training, expertise, application development, and customized solutions as with his CANopen safety certifiable stack SIL 3.

By offering support services, ranging from expertise on technology and products, to application development, including training, testing and validation, ISIT provides its customers with global solutions from the design phase through industrialization. (ou variante : from design to industrialization).