HIMA F3240 is a 16-channel SIL3 safety digital input module for the HIMatrix/HIMax system. It supports 120V AC/DC and has channel-level diagnostics. It is currently in production.

I. Basic Information

Model: F3240 (Material Number: 984324002)

Brand/Series: HIMA (Black Horse) / HIMatrix F3 Series & HIMax System

Function: 16-channel secure digital input DI, SIL3 (IEC 61508), TÜV AK6, Cat.4/PL e

Signal Type: 120V AC/DC dry contact / switch / relay signal

II. Core Electrical Specifications

Channels: 16, **Each channel is independently isolated (1500Vrms) and diagnostic**

Input Voltage: 120V AC/DC (range 85–132V AC / 90–150V DC)

Input Current: Typical 2–10mA (active state)

Diagnostic Function: Open circuit / short circuit detection, line resistance monitoring; Fault → Safety Low Level

Debounce Time: Configurable 0–255ms

Response Time: Typical 10ms / channel

Power Supply: Backplane 5VDC + 24VDC

Environment: -20℃ to +60℃, IP20; Supports hot swapping

III. Comparison with Similar Models

F3240: 16 channels, 120V AC/DC, isolation 1500V, SIL3, in production

F3226A: 16 channels, 24V DC NAMUR, non-isolated, SIL3, in production

F3237/F3238: 8 channels, 24V DC NAMUR / safe intrinsically, isolation 2kV, SIL3, in production

IV. Selection Suggestions

120V AC/DC high-voltage input scenario: Select F3240 (16 channels, high-voltage isolation)

24V DC NAMUR conventional low-voltage scenario: Select F3226A (16 channels) or F3237 (8 channels)

Explosion-proof / intrinsically safe scenarios: Select F3238 (8 channels Ex ia)