HIMA HIMax X-DI 64 01 Digital Input Module

I. Product Description
Model: X-DI 64 01 (also known as X-DI6401A)
Brand: HIMA Germany HIMA
System Platform: HIMax Large-Scale Safety PLC (SIS Safety Instrumentation System)
Module Type: 64-channel safety 24VDC digital input module
Safety Certification: TÜV Certification SIL3, PL e, Cat.4, used for process safety interlocks, unit protection, emergency stop system ESD

Model Code Interpretation X-DI 64 01
X: HIMax Series I/O
DI: Digital Input
64: Number of channels 64 points
01: Basic safety type, with SIL3 certification, 24VDC standard type
Compared with the same series: X-DI 64 51 = Non-safety general DI, without SIL certification, Hima

Core Electrical Specifications
Channel Configuration
64 channels of 24VDC current-sourcing input (IEC 61131-2 Type3)
Divided into 4 groups, each group with 16 channels, each group independently powered by 24V sensors
4 channels per group for loop diagnosis, supports open circuit / short circuit detection
Voltage / Current
Field input voltage: 20.4 – 28.8 VDC (standard 24V system)
Single-channel input current typical 6mA; module total load maximum 1.5A
Backplane power supply: 5VDC system bus
Response Performance
Signal filtering response time: ≤ 10ms
Supports system SOE event sequence recording, time stamp resolution 1ms
Mechanical and Environment
Slot width: 4TE, compatible with X-BP series backplane chassis
Protection: IP20, only used in control cabinets
Operating temperature: 0 – +60℃; storage – 40 – +85℃
Altitude ≤ 2000m, pollution grade II, complies with SELV safety low-voltage specification ManualsLib
Weight approximately 1.1kg

Safety Architecture Features
Dual-channel internal hardware voting (1oo2D)
Each input channel has dual-channel acquisition circuits, internal comparison and verification, single-channel failure does not lose safety function, meets SIL3 failure safety requirements.
Full-channel online diagnosis
Open circuit, ground short circuit, power failure, module internal chip failure are reported to CPU in real time, panel LED fault indication.
Hot-swappable support
Hima redundant chassis can replace modules without stopping the safety logic operation.
Redundant wiring compatibility
Matching terminal boards: X-CB 015 01 (standard screw terminal), X-CB 015 02 (redundant terminal board), supports dual-channel redundant acquisition of on-site contacts.

Matching Terminals and Cables
Screw Terminal Board: X-CB 015 01 (single channel), X-CB 015 02 (redundant)
Pre-fabricated Cable Terminal Board: X-CB 015 03 / 04
System Cable: X-CA 001 series (32-core field cable)
Explosion-proof scenarios: Can be equipped with Zener safety diode for Zone2 explosion-proof area to collect switch signals

Typical Application Scenarios
Petrochemical SIS emergency stop ESD, combustion furnace safety interlock
Power plant turbine / boiler FSSS furnace safety monitoring
Coal chemical, LNG storage tank high and low liquid level, pressure switch collection
Railway transportation, large-scale machine safety limit, emergency stop button, valve return contact

Simple Distinction of DI Modules in the Same Series
Table
Model Channels Voltage SIL Level Special Features
X-DI 64 01 64 24VDC SIL3 Standard safety DI, most commonly used
X-DI 64 51 64 24VDC No General monitoring DI, non-safety loop
X-DI 32 01 32 24VDC SIL3 32-point compact
X-DI 32 02 32 8.2VDC SIL3 Compatible with NPN proximity switch