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Phone：+86 17062388866Description
The HIMA ELOP II is a modular safety-certified programmable logic controller (PLC) from HIMA Paul Hildebrandt GmbH, engineered for mission-critical safety instrumented systems (SIS) in high-risk industries. As a core component of HIMA’s safety automation platform, the ELOP II delivers SIL 3/4 (IEC 61508/61511) certified performance for emergency shutdown (ESD), fire and gas (F&G), and burner management systems (BMS). Its dual-channel redundant architecture with “2oo4” voting logic ensures fail-safe operation in oil/gas refineries, chemical plants, and rail signaling applications. The HIMA ELOP II features deterministic processing with hardware-based fault detection, enabling reaction times < 50>
HIMA ELOP II
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | HIMA ELOP II |
| Manufacturer | HIMA Paul Hildebrandt GmbH |
| Product Type | Safety PLC (Programmable Logic Controller) |
| Safety Certification | SIL 3/4 (IEC 61508/61511), AK6 (DIN V 19250) |
| Architecture | Dual-channel redundant (2oo4 voting) |
| Processing Speed | < 50> |
| I/O Capacity | Up to 2,000 points per module |
| Communication Protocols | HIMatrix, PROFIBUS, Modbus TCP, Ethernet/IP |
| Operating Temperature | -40°C to +70°C |
| Power Supply | 24V DC (18-32V range) |
| MTBF | > 100 years (TÜV-certified) |
| Memory | 4 MB SRAM + 16 MB Flash |
| Certifications | ATEX/IECEx Zone 2, cFMus, DNV-GL |
| Housing Protection | IP20 (rack-mounted) |
Main Features and Advantages
Ultra-reliable safety architecture: Dual-CPU cross-monitoring with hardware-based discrepancy detection ensures < 10>HIMA ELOP II executes safety logic in dedicated FPGAs, eliminating OS-related vulnerabilities.
Deterministic performance: Guaranteed sub-50ms safety response time via hardware-triggered interrupt processing. Integrated watchdog circuits validate cycle times every 10ms.
Scalable redundancy: Supports hot-swappable modules for power supplies, CPUs, and I/O cards. Automatic voter synchronization maintains availability during component failures.
Advanced diagnostics: Onboard LED status per channel + detailed event logging with timestamps. HIMA Safety Manager software provides FMEA reports and SIL verification.
Application Field
The HIMA ELOP II dominates safety-critical sectors:
Oil & Gas: Emergency shutdown (ESD) for offshore platforms with SIL 4 gas compression units
Chemical Plants: Toxic gas detection and reactor quenching systems in BASF/Bayer facilities
Power Generation: Turbine overspeed protection in combined-cycle plants
Rail Transport: SIL 4 interlocking systems for high-speed rail networks (ETCS Level 2)
Pharmaceuticals: Sterilization steam barrier safety in API manufacturing
HIMA ELOP II
Related Products
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HIMA F8650: Compact SIL 3 controller for smaller applications
HIMA DI 16/32: 16-channel digital input module for ELOP II
HIMA AI 8/16: Analog input module with HART support
HIMA PS 60: Redundant power supply unit
