I. Model and Basic Information 

Model: F5109B (Material Number: 985109B02)

Brand/series: HIMA Black Horse / HIMatrix F Series (F35/F40 systems)

Function type: Safety Non-Volatile Memory Module (Safety Memory)

Safety level: SIL3, PL e, AK6, Cat.4 (TÜV Certified)

Status: In-service production, supports hot swapping

Installation: Standard 4TE rack, occupies 1 slot

II. Core Functions and Features

Non-volatile Storage: User programs, hardware configurations, interlock logic, and diagnostic logs are permanently saved even after power loss, without the need for a backup battery.

Highly Reliable Redundancy: Built-in hardware redundancy + ECC error correction, single-particle upset tolerance, meeting SIL3 data integrity requirements.

High-speed Access: Low latency read and write, supporting real-time runtime data interaction without affecting the safety system scanning cycle.

Full Self-Diagnosis: Real-time detection of memory faults, data verification errors, and access timeouts; safe shutdown upon failure + LED alarm + upper computer alarm.

Hot Swap: Online replacement without interrupting system operation, supports firmware upgrade during operation.

Security Zones: Isolation of storage areas (program area / configuration area / log area), preventing illegal tampering and data overflow.

III. Electrical and Physical Parameters

Capacity: 4MB (security area: 2MB; user area: 2MB)

Storage Medium: Industrial-grade Flash (radiation-resistant, wide temperature range)

Interface: Special secure backplane bus (for communication with F35/F40 CPU)

Power Supply: 24VDC (18~30V), power consumption ≤ 80mA

Operating Temperature: -20℃ ~ +60℃

Isolation: Electrical isolation from on-site I/O, withstands 1500Vrms voltage

Size / Weight: 40mm×185mm×127mm / approximately 0.25kg

IV. Typical Applications

SIS/ESD: Stores emergency stop logic, interlock parameters, event logs

BMS Boiler: Saves combustion management programs, safety sequences, fault records

F&G Fire and Gas: Stores flame/gas detection logic, alarm thresholds, historical events

Data Black Box: Safe event traceability, fault analysis, compliance auditing (compliant with IEC 61508/61511)

V. Identifying the Same Series (Quick Differentiation)

F5109B: Security memory module, program / configuration / log storage, SIL3

F4111A: 4-channel safety gating, CPU and I/O isolation, SIL3

F3DIO20/802: 20DI + 8DO mixed I/O, directly connected to the field, SIL3

F35: Integrated controller (CPU + I/O), small system core