F8650E (HIMA High Performance Secure CPU Module - Wide Temperature Type) Basic Information

Model: F8650E (Part Number: 984865064)

Brand: HIMA (Germany)

Series: HIQuad H51q Safety Instrumentation System (SIS)

Type: Dual CPU Locked-Step Redundant Safety Controller (Wide Temperature Enhanced Version)

Safety Level: IEC 61508 SIL3 (TÜV AK6 Certified)

Installation: 19" Rack, 8SU Width

Status: In Service, One of the Three Models in the F8650 Series (A/E/X)

Hardware Specifications

Processor: 2× Intel 386EX 32-bit, 25MHz, clock synchronization (lockstep redundancy)

Memory (per CPU):

System Flash: 1MB

User Program Flash: 1MB

Data SRAM: 1MB

Dimensions: Approximately 41mm × 187mm × 128mm

Weight: Approximately 0.34kg

Electrical Parameters

Power Supply: 24VDC (18~32VDC, wide voltage range)

Power Consumption: Typical 5W, maximum approximately 6W

Safety Watchdog: 24V output, maximum 500mA, short circuit protection

Communication Interfaces

Serial Port: 2× Isolated RS485, supports Modbus RTU

Backplane Bus: Special I/O bus, connects H51q series I/O modules

Expansion: Supports Profibus DP, Ethernet (optional)

Environmental Parameters (Core Differentiation Points)

Operating Temperature: -40℃ ~ +70℃ (wide temperature range, suitable for extreme environments)

Storage Temperature: -40℃ ~ +85℃

Relative Humidity: 5%~95%, no condensation

Anti-Vibration / Shock: Industrial-grade reinforcement, suitable for outdoor / indoor harsh conditions Core function

Safety logic control: implements ESD emergency stop, BMS burner management, and F&G fire gas interlock.

Dual-machine lock-step redundancy: dual CPUs operate synchronously, real-time comparison is conducted, automatic safe shutdown occurs upon single fault, and there is no single point failure.

Comprehensive hardware self-diagnosis: diagnostic coverage ≥ 99%, monitoring of voltage, temperature, communication, and memory, fault codes are visualized.

Online maintenance: supports hot swapping, the redundant system can be replaced online without interrupting operation.

4-digit diagnostic display: the panel has PWR/RUN/ALM indicator lights + digital tube, which displays the status / address / fault code in real time.