Products Description
HIMA F8620 Safety Processor Module

Technical Specifications
Model:F8620
Brand:HIMA
Safety certification:SIL3,IEC61508,TÜV certified
Power supply:24V DC
Architecture:1oo2 dual processor redundant fail-safe
Diagnosis:Hardware watchdog,periodic comprehensive hardware self-test
Mounting:Plug-in subrack installation
Protection class:IP20
Operating temperature:-20~+60℃
Relative humidity:5~95% non-condensing
Weight:0.395kg
Certification:CE
System compatibility
Designed for HIMA H41q safety system,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 redundant safety processor module.It executes safety logic program,collects field I/O data,performs safety calculation and outputs safety control commands.Dual CPUs cross-check calculation results,built-in hardware watchdog and continuous self-test.When hardware fault or safety trip triggered,the module automatically enters predefined safe state.
Installation
Plug into H41q rack backplane,match with H41q I/O and communication modules,download safety project via SILworX engineering software.
Interface
‑Backplane safety bus connector
‑Front panel serial communication ports
‑LED indicators for run,fault and communication status
Circuit feature
1oo2 dual redundant fail-safe architecture,continuous hardware self-test,strong anti-electromagnetic interference,meets SIL3 functional safety requirements for hazardous industrial environment.
Feature
H41q series SIL3 safety processor F8620. Common faults:firmware failure,backplane contact failure,communication circuit damage.Confirm rack firmware version before replacement.
Diagnostic
Internal hardware fault or communication error triggers fault alarm;controller executes safety interlock logic.
Built‑in function
F8620 performs safety logic calculation and SOE sequence of event recording for SIS safety instrumented system emergency shutdown protection,widely used for process plant safety spare replacement.
Product Brief
F8620 belongs to HIMA H41q family,plug-in SIL3 redundant safety processor module for H41q 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.