HIMA F3231 digital input module

HIMA F3231 Overview

The HIMA F3231 is a digital input module in the HIMA safety control system series, designed for acquiring digital signals such as on/off states and pulses from field devices. It converts these signals into safety signals recognizable by the safety control system, enabling real-time monitoring and safety interlocking of process equipment.

Key Functions

• Signal Acquisition: Collects digital signals from limit switches, pressure switches, pulse encoders, and other field devices.
• Signal Conversion: Converts standard digital signals into safety-compliant signals.
• Signal Isolation: Provides electrical isolation to prevent interference and false triggering.
• SOE Recording: Supports millisecond-level Sequence of Events (SOE) recording, with a storage capacity of around 100,000 event entries.

Technical Specifications (Core)

Typical Application Scenarios

• Machine Safety: Safety doors, light curtains, emergency stop switches in robotics, packaging lines, and assembly lines.
• Process Safety: Valve limit switches, pressure switches, and flow meter pulse signals in chemical, oil & gas, and metallurgy industries.
• System Integration: Serves as a front-end I/O for HIMA H51q-HRS and H51q-B series safety controllers, forming complete safety function blocks (safety input, output, monitoring, and recording).

Selection and Usage Recommendations

• Signal Type Confirmation: If only switch or pulse signals need to be acquired, the F3231 is the appropriate digital input module. For analog signals, select the corresponding analog input module (e.g., F6217).
• Module Quantity Planning: Plan the required number of I/O subracks based on system size (16 modules per subrack), ensuring sufficient rack space and power capacity.
• Safety Certification Compliance: In systems requiring SIL 3 or PL e, the F3231 already meets the required safety integrity level and can be directly applied in high safety-grade projects.