HIMA F3226 is a 16-channel SIL3 safety DI module for the H41q/H51q platform, an upgraded version of F3225, enhanced for diagnostics and supporting NAMUR. It is no longer in production and spare parts are available.

1. Basic Information

Model: F3226 (specific for H41q/H51q, not part of the F3 series)

Brand/Series: HIMA (Black Horse) / H41q/H51q Safety System

Function: 16-channel safety digital input DI, SIL3 certified

Safety Level: SIL3 (IEC 61508), TÜV certified, Cat.4/PL e

Programming Software: Special configuration tool for H41q/H51q (not ELOP II)

Status:停产 (EOL)， no new stock from the original factory， available in second-hand / inventory / refurbished supply

II. Electrical Specifications (F3225 Upgrade Version)

Channels: 16 DI channels, independent diagnostics per channel (better than F3225 group diagnostics)

Input signals: 24 VDC dry contacts / 8 mA NAMUR sensors (F3225 only dry contacts)

Isolation: 2 kVrms isolation

Response time: Typical 8 ms (2 ms faster than F3225)

Power supply: Backplane 5 VDC (100 mA), no external 24 VDC power supply

Diagnosis: Single-channel open/closed circuit / line resistance detection, channel-level fault isolation

Environment: 0 ℃ to +60 ℃, IP20

Size/Weight: 19" rack, 4TE wide; approximately 0.12 kg

III. Core Differences from F3225/F3224

F3226 vs F3225 (Platform Upgrade)

Diagnosis: F3226 single-channel independent; F3225 only group diagnosis

Input: F3226 dry contacts + NAMUR; F3225 only dry contacts

Response: F3226 8 ms; F3225 10 ms

F3226 vs F3224 (Incompatible across platforms)

Platform: F3226 H41q/H51q; F3224 F3 series (rack / backplane / software are all different)

Isolation: F3226 2 kV; F3224 2.5 kV high isolation

V. Alternative suggestions

Same platform (H41q/H51q): No exact same model available, use second-hand / refurbished F3226

Cross-platform upgrade (F3 series): Replace with F3112/F3114 rack, choose F3224A (16DI, high isolation, full diagnostics)

System upgrade: Migrate to HIMax (SILworX) or HIMatrix F35