Product Core Summary

• Model: F3 DIO 20/8 02 (Article No. 984332002)
• Manufacturer: HIMA Paul Hildebrandt GmbH
• Core Function: High-density safety-related mixed digital I/O slice providing 20 line-monitored 24 VDC inputs and 8 individually diagnosed 2 A outputs with readback in a single 22.5 mm wide module
• System Compatibility: All HIMatrix controllers and remote I/O stations (F30, F35, F60, F3 AIO) via safeethernet protocol
• Supply Status: In Stock (current production, latest hardware revision)
• Warranty Standard: 12-month functional warranty, fully tested on certified SIL3 HIMatrix F60 rack with automated proof-test execution

 

Key Technical Specifications

• Product Model: F3 DIO 20/8 02
• Manufacturer: HIMA
• System Platform: HIMatrix Safety System
• Digital Inputs: 20 channels, 24 VDC sink/source, line-monitored (open & short-circuit)
• Digital Outputs: 8 channels, 24 VDC high-side, 2 A continuous (short-circuit proof), readback monitoring
• Input Filter Time: Configurable 1–20 ms
• Output Switching Time: ≤ 8 ms (command to physical contact including safety reaction)
• Line Monitoring Inputs: Test pulses, detection < 4 s
• Readback Outputs: External 15 kΩ resistor required for open-circuit detection when OFF
• Diagnostic Coverage: > 99 % (IEC 61508)
• Safe Isolation: 500 VAC channel-to-backplane and group-to-group
• Total Simultaneous Load: 12 A (all 8 outputs at 1.5 A with forced cooling)
• Power Consumption: 5.5 W typical + load
• Operating Temperature: –25 °C to +70 °C
• Safety Integrity: SIL 3 single module, SIL 4 capable in redundant configuration, Cat. 4 / PL e
• Certifications: TÜV Rheinland SIL3, ATEX Zone 2 / IECEx, UL/CSA, FM Class I Div 2, DNV-GL
• MTBF: > 1,600,000 hours
• Dimensions (W×H×D): 22.5 × 99 × 114 mm

 

Technical Architecture & Functional Positioning

The F3 DIO 20/8 02 is the highest-density mixed digital safety I/O in the entire HIMatrix portfolio. Internally it uses dual diverse microcontrollers with continuous cross-comparison and independent input/output circuits. Every input channel is monitored for wire-break and short-circuit via test pulses, while every output includes active readback comparison — any deviation triggers immediate safe deactivation within the defined process safety time.

This module is specifically engineered for applications that demand maximum I/O count in minimum panel space while retaining full SIL3 diagnostics (e.g., compact ESD nodes, burner management extensions, turbine auxiliary systems).

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