Description
HIMA F8650E Central Module
The F8650E is a Central Module manufactured by HIMA for their HIQuad safety-related control system (specifically associated with the H51q system architecture).
Key Specifications & Overview
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Manufacturer: HIMA
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Product Family: HIQuad
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Component Type: Central Processor / Processing Module (CPU)
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System Compatibility: H51q Safety-Related PLC Systems
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Function: Executes safety-related application programs, manages system communications, and oversees input/output processing within fault-tolerant safety configurations.
Applications
HIMA HIQuad systems like the H51q utilizing the F8650E module are typically deployed in high-risk industrial environments requiring rigorous safety integrity levels (up to SIL 3 / IEC 61508), such as:
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Emergency Shutdown Systems (ESD)
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Burner Management Systems (BMS)
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Turbomachinery Control and Protection
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Fire and Gas (F&G) Detection Systems
F8650E
Product Overview
F8650E is the Main Safety Controller CPU Module manufactured by HIMA (Hirschmann Automation, Germany) for the HIQuad H51 Fault-Tolerant Safety Instrumented System (SIS).
It adopts 1oo2D dual-channel redundant safety architecture, executes ESD emergency shutdown logic, burner management, turbine protection and customized safety interlock programs. It collects field I/O signals, performs safety logic computation, and outputs voting control commands to field actuators.
Certified to IEC 61508 SIL3, widely deployed in power plants, petrochemical and oil & gas safety control cabinets. Its upgraded successor model is F8650X.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | F8650E |
| Module Type | HIQuad H51 Safety Main CPU Module |
| Manufacturer | HIMA Paul Hildebrandt GmbH |
| Applicable Platform | HIQuad H51 SIS Rack System |
| Architecture | 1oo2D Dual Redundant Processor Safety Design |
| Processor | Dual independent 32-bit industrial CPU |
| Memory | Onboard Flash firmware storage + SRAM with battery backup |
| Control Power | 24 VDC (9~36 VDC wide range) |
| Communication Interfaces | Dual RS485 fieldbus; optional Ethernet expansion; supports Modbus RTU |
| Internal Bus | HIMA proprietary safety backplane bus |
| Hot Swap | Supported inside certified H51 rack |
| Operating Temperature | 0 ℃ ~ +70 ℃ |
| Ambient Humidity | 5%–95% non-condensing |
| Protection Class | IP20 (installed within control cabinet) |
| Safety Certification | IEC 61508 SIL3, IEC 61511, major marine classification certifications |
| Front Panel | Digital display, OK / Fault LED indicators, status buttons |
| Supporting I/O Modules | F3300, F3113, F8621A etc. series I/O boards |
| Engineering Tool | HIMA SILworX configuration software |
| Spare Part Status | Production discontinued; surplus new & refurbished modules available |
Key Features
- Dual independent processor channel with cross-comparison; single channel hardware fault will not trigger false trip
- Built-in comprehensive self-diagnosis, detects internal CPU fault, memory error, bus communication failure
- Supports millisecond-level safety logic execution for ESD, overspeed trip and burner safety control
- Battery backup memory retains user safety program and historical fault event logs during power loss
- Multiple communication interfaces for data exchange with plant DCS, operator stations and monitoring systems
- Standard single-slot plug-in form factor for HIQuad H51 rack; mechanical key prevents misplugging
Important reminder: F8650E belongs to HIMA, not Triconex. Many trading platforms mislabel it as Triconex product.
- Cannot be directly replaced by F8650X; hardware backplane and firmware are not fully compatible without project re-commissioning

