F8641 (HIMA High-End CPU Module)

Basic Information

Model: F8641

Brand: HIMA (German High End)

Part Number: 981864102

Product Type: Safety CPU Module (Controller)

Applicable System: H41q/H51q Safety Instrumented System (SIS)

Safety Level: IEC 61508 SIL3, TÜV Certified

Architecture: Triple Redundancy TMR (3-channel CPU)

Installation Method: 19" Rack Slot Type

Protection Level: IP20

Status:停产 (EOL： 2010-03-31)， Original stock available.

Hardware Specifications

Processor: 32-bit secure CPU, with a clock frequency of 100 MHz

Memory: 128KB RAM; 1MB Flash (system / user programs)

Processing Capacity: Supports up to 128 I/O points

Size: 25mm × 127mm × 203mm (width × height × depth)

Weight: Approximately 0.4kg

Electrical Parameters

Power Supply: 24VDC (18~32VDC)

Power Consumption: Typical 5W

Backplane Interface: Dedicated system bus, connects I/O modules

Communication Interface

Serial Port: 2×RS232/RS485 (DB9), supports Modbus RTU

Ethernet: 1×RJ45 (10/100Mbps), used for programming / diagnosis

Redundancy Interface: Supports TMR triple redundancy interconnection

Environmental Parameters

Operating Temperature: -20℃ ~ +60℃

Storage Temperature: -40℃ ~ +85℃

Relative Humidity: 5%~95%, no condensation Core function

Safety logical operation: Core control of the SIS system, execution of safety interlock programs such as ESD/BMS/F&G.

Triple redundancy fault tolerance: Three-channel CPUs operate synchronously, faults are automatically voted, and there is no single-point failure.

Hardware self-diagnosis: Diagnostic coverage ≥ 99%, real-time detection of CPU, memory, communication, and I/O failures.

Program download and online diagnosis: Ethernet / serial port connection, supports remote maintenance and fault troubleshooting.

Hot-swappable redundancy: Supports dual CPU redundancy configuration, online replacement without interrupting system operation.

Panel indicator lights

PWR (green): Normal power supply

RUN (green): Normal operation (flashing)

ALM (red): Hardware / program failure

COM (yellow): Communication activity

I/O (yellow): I/O bus status

Installation and maintenance

Push the rack slot in and lock it to ensure reliable contact with the backplane.

Connect 24VDC, Ethernet / serial port, and redundant cables, and ground the cabinet.

Daily inspection indicator lights, regularly tighten terminals, and clean and dust-proof.

Fault replacement: Directly replace the same model F8641, the redundant system automatically synchronizes, and no reconfiguration is required.