The HIMA F8652X is a high-integrity central module designed specifically for the HIMA PES H41q-MS, -HS, and -HRS safety systems. As a core component of the H41q architecture, this module is safety-related and certified for use in applications up to SIL 3 according to IEC 61508. The F8652X utilizes dual clock-synchronized Intel 386EX 32-bit microprocessors to ensure deterministic execution of safety logic. Its architecture is built for maximum fault tolerance, incorporating a dedicated safety watchdog and electrically isolated RS-485 interfaces. This module is essential for managing critical safety functions in emergency shutdown (ESD) and fire and gas (F&G) systems where human life and environmental protection are the highest priority.
Detailed technical parameters for the HIMA F8652X central module:
| Parameter | Specification Details |
| Model Number | F8652X |
| Manufacturer | HIMA Paul Hildebrandt |
| System Compatibility | PES H41q-MS, H41q-HS, H41q-HRS |
| Safety Integrity Level | SIL 3 (IEC 61508) |
| Microprocessor | 2 × Intel 386EX (32-bit) |
| Clock Frequency | 25 MHz |
| Memory per Processor | 1 MB Flash-EPROM (OS/User), 1 MB SRAM (Data) |
| Communication | 2 × RS-485 Serial (Isolated) |
| Diagnostic Display | 4-digit matrix display (selectable info) |
| Safety Watchdog | 24 V, 500 mA output, short-circuit proof |
| Power Requirements | 5 V / 2 A |
| Space Requirement | 8 SU (Standard Units) |
| Construction | 2 European standard PCBs + 1 Diagnostic PCB |
| Origin | Germany |
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