The HIMA F8621 Central Processor Unit is a high-integrity, safety-certified CPU module designed for demanding automation and safety-critical systems. Developed and manufactured by HIMA Paul Hildebrandt GmbH, a global leader in functional safety systems, the F8621 is widely implemented in environments that demand SIL3-compliant reliability and processing accuracy.

This CPU module serves as the core processing element in the HIQuad platform, offering deterministic real-time performance, robust diagnostics, and support for redundancy. Its modular architecture allows seamless integration into both centralized and distributed control systems. With compliance to international safety and industrial communication standards, the F8621 is trusted across sectors such as oil & gas, chemicals, energy, transportation, and more.

Technical Specifications

Product Applications

The F8621 CPU module is an ideal control component in safety-related and mission-critical environments. It is typically deployed in the following industrial domains:

• Emergency Shutdown (ESD) Systems

  Processes safety logic and handles plant shutdown sequences in emergency situations.

• Pipeline and Compressor Station Automation

  Controls safety interlocks and process sequences in remote compressor and valve stations.

• Turbomachinery and Boiler Safety

  Ensures the safe and coordinated operation of high-risk mechanical assets such as turbines, blowers, and boilers.

• Chemical Plant Safety Systems

  Manages interlocking and process protection logic in hazardous material processing facilities.

• Power Station Automation

  Deployed in thermal and nuclear power stations for protective relay control and system coordination.

• Rail Transport Automation

  Used in automatic train protection (ATP), train control, and safety signaling subsystems.

Product Advantages

• Certified Safety Integrity (SIL3)

  Fully adheres to IEC 61508 standards for functional safety, enabling use in the highest safety-level environments.

• Reliable Redundancy Capability

  Designed for hot standby and redundant operation, ensuring uninterrupted control in case of failure.

• Fast and Deterministic Performance

  Optimized to process real-time data and execute critical safety logic with high determinism.

• Modular Integration

  Easily integrates into HIMA’s HIQuad systems and compatible with other HIMA modules.

• Versatile Communication Support

  Equipped with Ethernet and RS485 interfaces for efficient system networking and data handling.

• Extended Environmental Tolerance

  Built to withstand harsh industrial conditions with wide temperature and humidity ranges.

• Minimal Downtime and Maintenance

  Features advanced diagnostics, self-test routines, and real-time monitoring to reduce troubleshooting efforts.

Frequently Asked Questions (FAQ)

1. What is the F8621 used for?

   The F8621 is used as the central processor module in HIMA’s HIQuad safety control systems to execute logic and manage real-time safety applications.

2. Is the F8621 compatible with redundant configurations?

   Yes, the F8621 fully supports hot standby redundancy for critical systems.

3. What safety certifications does the F8621 hold?

   It is certified for IEC 61508 SIL3, and also complies with ATEX, CE, and UL standards.

4. Can the F8621 communicate over Ethernet?

   Yes, it has two Ethernet ports and supports integration into TCP/IP-based industrial networks.

5. How much memory does the F8621 offer?

   It offers 8 MB Flash memory for program storage and 4 MB RAM for runtime data handling.

6. What happens if the module fails?

   If configured in redundant mode, the backup CPU takes over automatically. Diagnostic LEDs and logs will also indicate the failure.

7. Is the F8621 suitable for offshore platforms?

   Yes, with ATEX certification and proper housing, it can be installed in hazardous areas such as offshore rigs.

8. Can firmware be updated on the F8621?

   Yes, HIMA provides tools for firmware updates under secure and controlled procedures.

9. How is the module mounted?

   It is installed in a modular rack system compatible with other HIMA HIQuad components.

10. What tools are needed to program the F8621?

    Programming and configuration are typically done via HIMA’s ELOP II Factory or related software platforms.