HIMA F8650
The HIMA F8650 is a safety central processing module (Safety CPU / Central Module) designed for HIMA’s H51q series Programmable Electronic Systems (PES). It performs safety logic execution, system diagnostics, and safety-related control functions in high-reliability industrial automation applications. The module is designed for safety-critical environments and supports applications requiring compliance with IEC 61508 SIL 3 requirements.
1. Product Positioning
- Manufacturer: HIMA Paul Hildebrandt GmbH (Germany)
- Model: F8650
- Product Type: Safety Central Module / Safety Controller CPU
- System Compatibility:
- HIMA H51q-MS
- H51q-HS
- H51q-HRS PES systems
- Safety Level: Up to SIL 3 according to IEC 61508
The F8650 serves as the main processing unit of the H51q safety system, executing safety programs and monitoring system operation through a redundant processor architecture.
2. Technical Specifications
| Parameter | Specification |
|---|---|
| CPU Architecture | Dual synchronized processor architecture |
| Processor Type | Intel 386EX, 32-bit |
| CPU Quantity | 2 synchronized CPUs |
| Clock Frequency | 25 MHz |
| Operating System Memory | 1 MB Flash EPROM per CPU |
| User Program Memory | 512 KB Flash EPROM |
| Data Memory | 256 KB SRAM |
| Power Supply | 5 V DC, approx. 2 A |
| Communication Interfaces | 2 × isolated RS-485 interfaces |
| Installation Type | Plug-in module for H51q rack system |
| Module Width | 8 SU |
| Display | 4-character matrix diagnostic display |
| Watchdog Output | 24 V DC, max. 500 mA, short-circuit protected |
3. Key Features
① Dual-Processor Safety Architecture
The F8650 uses two synchronized processors running in parallel. This architecture provides:
- Continuous CPU self-monitoring
- Program execution comparison
- Fault detection and isolation
- Automatic transition to a safe state in case of critical failures
This design enhances system availability and safety integrity for SIS applications.
② High Reliability and Safety Functions
The F8650 provides:
- Safety logic execution
- Fault diagnosis
- Watchdog monitoring
- Fail-safe shutdown control
- Continuous system integrity checking
When an internal fault is detected, the system can initiate predefined safety actions to protect the process.
③ Advanced Diagnostic Capability
The front panel provides diagnostic information through:
- 4-digit status display
- CPU status indicators
- I/O fault indications
- Fault acknowledgment function
These features simplify commissioning, troubleshooting, and maintenance.
4. F8650 vs. F8650X Comparison
| Feature | F8650 | F8650X |
|---|---|---|
| System Platform | H51q | H51q |
| CPU Type | Dual Intel 386EX | Dual Intel 386EX |
| CPU Speed | 25 MHz | 25 MHz |
| User Program Memory | 512 KB | 1 MB |
| Data Memory | 256 KB SRAM | 1 MB SRAM |
| Communication | 2 × RS-485 | 2 × RS-485 |
| Safety Level | SIL 3 | SIL 3 |
| Main Difference | Standard version | Enhanced memory version |
5. Application Areas
The HIMA F8650 is widely used in safety-critical industries, including:
Oil & Gas
- Emergency Shutdown Systems (ESD)
- Burner Management Systems (BMS)
- Process safety interlocks
Chemical & Petrochemical
- Safety Instrumented Systems (SIS)
- Hazard protection systems
- Process shutdown applications
Power Generation
- Turbine protection
- Boiler safety systems
- Plant safety automation
Industrial Automation
- High-availability control systems
- Critical process monitoring and protection
6. Typical System Configuration
A typical HIMA H51q safety system may include:
- F8650 Safety Central Module
- HIMA power supply modules
- Safety I/O modules
- Communication modules
- Engineering and configuration software
The F8650 acts as the central controller, managing safety logic execution and communication with distributed safety I/O modules.
7. Conclusion
The HIMA F8650 Safety Central Module is a high-reliability safety controller designed for demanding industrial protection applications. With its dual synchronized processor architecture, SIL 3 capability, advanced diagnostics, and fail-safe operation, it provides a robust platform for Safety Instrumented Systems (SIS), emergency shutdown systems, and other critical automation applications in industries such as oil & gas, chemical processing, and power generation.
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FAQ
Q:What is the earliest time when you can make delivery?
A:We will make delivery once received your payment.
Q:If the product can’t work, can it be returned?
A:We provide one year warranty.
Q:How easy is it to obtain items?
A:New are no longer continuously manufactured, and therefore supply is scarce.
However, at SAUL we specialize in sourcing hard-to-find products, and although
the lead time varies, the average is between 5-7 business days.
Q:What is the typical price for the items?
A:SAUL ELECTRIC always gives customers excellent service and prices that are highly competitive.Requirements for delivery and availability do affect pricing.
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