HIMA F3DIO20/802 (20 inputs / 8 outputs digital safety I/O module)

I. Model Description

Model: F3DIO20/802 (also written as F3 DIO 20/8 02)

Brand: HIMA Black Horse (Germany)

Series: HIMatrix F3 Safety System

Type: High-density digital input/output hybrid module

Safety Level: SIL3, PL e, AK6, Cat.4 (TÜV Certified)

Application: SIS/ESD/BMS/F&G; Connects a large number of switches, buttons, solenoid valves, contactors

Installation: Standard 4TE rack, supports hot swapping

II. Channel Configuration

Digital Input DI: 20 channels (24VDC, source type / drain type compatible)

Digital Output DO: 8 channels (transistor output, 24VDC)

Each channel capacity: 0.5A

Short circuit / overcurrent protection, fault self-diagnosis

III. Electrical Parameters

Backplane power supply: 24VDC (18~30V)

Power consumption: ≤150mA

Input signal: 24VDC, high level valid

Output load: 24VDC, maximum 0.5A / channel

Isolation: System side ↔ Field side 1500Vrms

Operating temperature: -20℃ ~ +60℃

Protection / size: IP20; 4TE (≈20mm wide)

Weight: Approximately 0.2kg

IV. Safety and Functional Features

High-density I/O: 20DI + 8DO integrated, saving slots and costs

Full self-diagnosis: Open circuit, short circuit, overcurrent, power supply failure全覆盖

Safety-related： DO safely disconnects during faults / power loss， in line with SIL3 principle

Status indication： LED per channel， power / fault LED， intuitive maintenance

Redundancy compatibility： Supports QMR/TMR architecture， meeting high availability requirements

Software： SILworX / ELOP II configuration and diagnosis

V. Typical Applications

Large-scale ESD： Multiple units， multi-area emergency stop

Boiler BMS： Large number of ignition / fuel valve / blow-off interlocks

Fire and Gas F&G： Multiple point flames / gas detection and fire linkage

Piping equipment： Integrated safety control for high I/O demand

VI. Series Identification (Quick Differentiation)

F3DIO20/802： 20DI + 8DO hybrid module， high-density universal type

F3422/F3423： 8-channel relay output， large load dedicated

F3430： 4-channel relay output， small size， low power consumption

F35： Integrated controller (CPU + I/O)， no additional CPU required