HIMA F8650X Safety Processor Module

Technical Specifications

Model:F8650X

Brand:HIMA

Safety certification:SIL3,IEC61508,EN954-1 Cat.4

Power supply:5V DC,2A

Processor:Dual Intel 386EX,25MHz clock-synchronized

Memory:1MB Flash-EPROM for OS,1MB Flash-EPROM for user program,1MB SRAM data memory

Communication:2×galvanic isolated RS485 serial ports

Display:4-digit matrix diagnostic display

Diagnosis:Hardware watchdog,permanent self-test,dual processor cross-comparison,watchdog 24V output up to 500mA with short-circuit protection

Mounting:Plug-in subrack installation,8SU width

Protection class:IP20

Operating temperature:-20~+60℃

Relative humidity:5~95% non-condensing

Weight:0.40kg

Certification:CE

System compatibility

Designed for HIMA H51q PES safety system,works for H51q-MS / H51q-HS / H51q-HRS rack,runs safety application program,processes I/O signals and executes safety interlock logic,widely used in petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.

Function

SIL3 1oo2D redundant safety processor module.It adopts dual clock-synchronized 32-bit processors,cross-verifies calculation results to eliminate single point failure.Executes safety logic calculation,field I/O data collection,safety command output and SOE sequence of event recording.Built-in hardware watchdog with 24V safety output and continuous self-test.When processor mismatch,communication fault or hardware failure detected,the module triggers fault alarm and system enters predefined safe state.

Installation

Plug into H51q rack backplane,match H51q system firmware,download safety project and configure serial communication parameters via SILworX engineering software.

Interface

‑2×galvanic isolated RS485 serial communication terminals

‑4-digit front panel diagnostic display

‑Backplane safety bus connector

‑LED indicators for run,fault and communication status

Circuit feature

1oo2D fail-safe safety architecture,dual processor cross-monitoring,continuous hardware self-test,strong anti-electromagnetic interference,meets SIL3 functional safety requirements for hazardous industrial environment.

Feature

H51q series SIL3 safety processor F8650X. Common faults:firmware mismatch,backplane contact failure,memory chip aging.Confirm rack firmware version before replacement.

Diagnostic

Processor calculation mismatch,serial bus communication error or internal hardware fault triggers fault alarm;controller executes safety interlock logic.

Built‑in function

F8650X performs core safety logic calculation and SOE event recording for SIS safety instrumented system emergency shutdown protection,widely used for process plant safety spare replacement.

Product Brief

F8650X belongs to HIMA H51q family,plug-in SIL3 1oo2D redundant safety CPU module for HIMA H51q safety subrack. Verify rack compatibility before ordering.Test safety logic and self-diagnosis function during commissioning. ESD anti‑static protection shall be followed during installation.