Key Features
- SIL3 Safety Certification: Complies with IEC 61508, ISO 13849-1 (PL e), TÜV AK6 – maximum safety integrity for critical processes.
- Dual 32-bit Processor Architecture: Two clock-synchronized Intel 386EX CPUs (1oo2D redundancy) with fault detection; automatic failover ensures 99.99% system availability.
- High-Speed Processing: 400 MHz+ core with 5 ms minimum cycle time for fast real-time control and emergency response.
- Ample Memory: 64 MB non-volatile flash (user programs), 128 MB RAM; supports large safety logic and data logging.
- Rich Communication Interfaces: 4× Ethernet (10/100 Mbps) for SafetyNET/Modbus TCP; 2× RS-232 (service); 2× safety backplane connectors for seamless I/O integration.
- Comprehensive Diagnostics: Continuous self-monitoring of CPU, memory, power, and I/O; 4-digit matrix display + LED indicators for fault visualization.
- Robust Industrial Design: -20°C to +60°C operating range; IP20 protection; 24 VDC ±20% backplane power; compact 8TE European rack form factor.

Technical Specifications
| Parameter | Details |
|---|
| Model | F8652X (Part No. 984865265) |
| Processor | Dual 32-bit Intel 386EX, 400 MHz+ with safety coprocessor |
| Safety Level | SIL3 (IEC 61508), PL e (ISO 13849-1), TÜV/CE/UL/ATEX 2 区认证 |
| Memory | 64 MB Flash (program), 128 MB RAM |
| Cycle Time | ≥5 ms (configurable) |
| Communication | 4× Ethernet (10/100), 2× RS-232, 2× safety backplane ports |
| Power Supply | 24 VDC ±20% (backplane-fed) |
| Operating Temp | -20°C to +60°C |
| Dimensions | 120×80×40 mm (W×H×D) |
| Weight | ~0.5 kg |
| Diagnostic | 4-digit display, CPU/IO error LEDs, watchdog protection |
Applications
- Oil & Gas: Emergency Shutdown (ESD) systems, pipeline safety, offshore platform control.
- Chemical & Petrochemical: Process safety, furnace/BMS control, explosion-proof protection.
- Power Generation: Turbine protection, boiler safety, combustion control.
- Critical Infrastructure: Tunnel/airport safety automation, high-risk manufacturing lines.
Why Choose HIMA F8652X
The HIMA F8652X safety CPU is the backbone of HIMA’s SIS solutions, combining SIL3 safety, dual-CPU redundancy, and high-speed performance for mission-critical industrial applications. Its robust design and seamless integration with HIMA I/O modules ensure reliable, low-latency control in harsh environments, reducing downtime and safeguarding personnel and assets.
