Products Description
Product Overview
The HIMA F8628 is a high-integrity safety controller from HIMA’s HIMax® Series, designed for safety instrumented systems (SIS) in industries where functional safety is paramount. Compliant with IEC 61508 and IEC 61511 standards, it achieves SIL 3 (Safety Integrity Level 3) certification, making it suitable for emergency shutdown (ESD), fire and gas (F&G), and burner management systems (BMS) in oil and gas, chemical plants, and power generation.
Key Features
Fault Tolerance:
Dual or quad-redundant architecture with hot standby redundancy.
Automatic diagnostics for CPU, I/O, and communication modules.
Safety Logic Solver:
Executes safety logic with **≤ 50 ms response time** for critical shutdowns.
Supports FBD (Function Block Diagram) and LD (Ladder Logic) programming.
Communication:
HART, Modbus TCP, and PROFIBUS integration.
OPC UA for secure data exchange with DCS/SCADA systems.
Certifications:
TÜV Rheinland certified (SIL 3), ATEX/IECEx for hazardous areas.
Technical Specifications
| Parameter | Details |
|---|---|
| CPU | Dual-core processor with hardware redundancy |
| I/O Capacity | Up to 1,024 digital/analog I/O points (expandable via modules) |
| Memory | 4 GB Flash, 2 GB RAM |
| Power Supply | 24 VDC (18–32 VDC range), dual redundant |
| Operating Temp | -40°C to +70°C |
| MTBF | >100 years (calculated per IEC 61508) |
| Enclosure | IP20 (rack-mounted) or IP66 (field cabinet) |
| Dimensions | 482 x 132 x 400 mm (WxHxD) |

Application Areas
Oil & Gas: Emergency shutdown (ESD) for offshore platforms and pipelines.
Chemical Plants: Safety interlocks for reactor overpressure and toxic gas leaks.
Power Generation: Turbine overspeed protection and boiler safety controls.
Railways: Signaling and track switching safety systems.
System Architecture
Centralized/Decentralized: Supports distributed I/O modules (e.g., HIMA DI 8.8) for flexible deployment.
Redundancy: Cross-communication between controllers for seamless failover.
Integration: Compatible with HIMA Safety Cloud for remote diagnostics and predictive maintenance.
Installation & Configuration
Programming: Use HIMatrix® software for SIL-compliant logic design and simulation.
Validation: Perform FAT (Factory Acceptance Testing) per ISA 84.00.01.
Certification: Requires TÜV-certified engineers for SIL 3 deployment.
Cybersecurity: Configure firewalls and role-based access to meet IEC 62443 standards.
Related Products
HIMA F35: Compact SIL 2 controller for smaller applications.
HIMA HIQuad X: Quad-redundant system for ultra-high availability.
HIMA DI 8.8: 8-channel digital input module.
HIMA AI 16.16: 16-channel analog input module.

Why It Matters
The F8628 ensures operational continuity and personnel safety in high-risk environments. Its deterministic response and fault-tolerant design minimize spurious trips while preventing catastrophic failures.

