The following is a comprehensive technical description of the HIMA X-DI 32 04 module, based on search result analysis and organization:

Product Overview

Model: HIMA X-DI 32 04

Type: 32 channel digital input module, dedicated to industrial safety control systems (such as HIMax/HIMatrix series) 12.

Safety certification: Certified with SIL 3 (IEC 61508/IEC 61511) and AK6 (DIN V 19250), suitable for high-risk scenarios such as petrochemicals, rail transit, and electricity.

Core function: Collect dry/wet contact (24VDC) signals, support equipment status monitoring and safety interlock control.

Key characteristics and technical parameters

1. Safety design

Redundancy diagnosis: Dual channel signal comparison (1oo2 architecture), detecting disconnection, short circuit, and cross fault, with a response time of ≤ 10ms29.

Self checking mechanism: Periodically test the impedance of the input circuit and monitor in real-time for contact adhesion or failure.

Isolation protection: The isolation voltage between channels is ≥ 500Vrms, and the isolation from channel to bus is ≥ 1500Vrms2.

Electrical performance

Parameter specifications

Input voltage 24VDC (range 18-30V)

Input current wet contact: 2-5mA (typical)

Channel configuration: 32 channels (divided into 2 groups, each group has 16 channels on the same ground)

Communication protocol HIMatrix backplane bus (speed 10Mbps)

Working temperature -40 ° C to+70 ° C29

3. Installation and maintenance

Wiring specification: Each group of 16 channels shares a common terminal (COM1/COM2) and requires the use of shielded twisted pair cables (such as LIYCY 11 × 0.5mm ²).

Diagnostic indicator: Independent LED status light for each channel (green normal/red fault)

Hot swappable support: module replacement without downtime, maintenance time ≤ 30 seconds

Application scenarios

Petrochemical industry: Valve and pump status monitoring in emergency shutdown system (ESD)

Power system: flame detection signal input for boiler protection (FSSS)

Rail Transit: Safety Status Monitoring of Trackside Equipment