HIMA F8650E Safety System Module CPU

HIMA F8650E Central Safety CPU Module

The F8650E is the central processing unit for the HIMA F8650 safety system. It is a dual-processor, fault-tolerant module designed for the highest safety integrity level (SIL) applications in process and machinery protection.

Core System Specifications

• Brand: HIMA
• Model Number: F8650E
• Product Type: Central Safety System Module (CPU)
• Architecture: Dual, clock-synchronized microprocessors (2oo2)
• Microprocessor: Intel 386EX, 32-bit (x2)
• Clock Frequency: 25 MHz per CPU
• Operating Voltage: 24 V DC

Memory Configuration

• Operating System Memory: Flash-EPROM, 1 MB (per CPU)
• User Program Memory: Flash-EPROM, 1 MB (per CPU)*
• Data Memory: SRAM, 1 MB (per CPU)*
• *Note: Actual usable capacity depends on the operating system version.

Electrical & Power Data

• Input Power (Backplane): 5 V / 2 A
• Safety Output (Watchdog): 24 V DC, loadable up to 500 mA, short-circuit proof
• Current Consumption (24V Line): Approximately 500 mA (Module), 2000 mA (System typical)

Communication & Interfaces

• Serial Interfaces: 2 x RS-485 (electrically isolated)
• Diagnostic Display: 4-digit matrix display for status and fault information
• Space Requirement: 8 Subrack Units (SU)
• Safety Watchdog: Integrated safety-related shutdown circuit.

Module Features & Safety Design

• Dual-channel (2oo2) architecture with synchronized processors ensures continuous comparison for fault detection.
• Dedicated safety watchdog provides a 24V, 500mA output to safely de-energize external circuits upon a detected fault.
• Isolated RS-485 interfaces enable communication with other safety controllers, HMI, or engineering stations.
• The front-panel 4-digit display provides quick access to diagnostic codes and system status.
• Designed for use in safety instrumented systems (SIS) requiring certification up to SIL 3 (IEC 61508) or AK 6 (DIN V 19250).
• Modular design plugs into a F8650 subrack as the central controller.

Typical Applications

• Emergency Shutdown (ESD) systems for oil & gas platforms and pipelines.
• Fire and Gas (F&G) detection and mitigation systems.
• Burner Management Systems (BMS) and turbine control.
• High-integrity machinery protection in chemical and pharmaceutical plants.

For system configuration or to order the HIMA F8650E safety CPU, contact our safety systems specialists.

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