HIMA X-DI6401 985210212 Product Introduction
1. Product Overview
The HIMA X-DI6401 985210212 is a high-density safety-related digital input module engineered for critical industrial automation systems. As a key component of HIMA’s safety instrumented systems (SIS)—such as HIMax and HIMatrix certified for SIL 4—it specializes in reliable acquisition of 24 VDC digital signals from sensors, switches, and actuators in safety-critical applications.
Ideal for oil & gas, chemical processing, and power generation industries, this module supports both dry and wet contact inputs, making it compatible with pressure switches, temperature transmitters, and emergency stop devices. It integrates seamlessly with HIMA’s safety controllers to form SIL 3-rated loops, ensuring accurate signal transmission for emergency shutdown systems (ESD), fire & gas (F&G) monitoring, and burner management systems (BMS). Its robust design and global safety certifications guarantee performance in harsh and hazardous environments.
2. Technical Parameters (Table)
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Category
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Specification
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Module Type
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Safety-related digital input module
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Channel Configuration
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64 independent channels (isolated between channels)
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Input Specifications
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Input voltage: 24 VDC (18–28 VDC operating range); Input type: Dry/wet contacts
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Safety Rating
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Complies with IEC 61508 / IEC 61511; SIL 3 capable (system-level integration)
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Communication Interface
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Backplane communication (compatible with HIMax/HIMatrix systems); RS485 & Ethernet (for diagnostics)
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Diagnostic Features
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Channel-level fault detection; Line monitoring; Real-time status indication
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Power Supply
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24 VDC; Current consumption: Max. 1.5 A; Min. 400 mA
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Environmental Ratings
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Operating temperature: -25°C to +60°C (-13°F to 140°F); Storage temperature: -40°C to +85°C (-40°F to 185°F); Humidity: 5%–95% (non-condensing); Protection class: IP20
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Physical Dimensions
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Length: 23 cm (9.06 in); Width: 2.92 cm (1.15 in); Height: 31 cm (12.20 in); Weight: 1.1 kg (2.43 lbs)
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Certifications
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CE; UL; ATEX Zone 2; IECEx; TÜV Rheinland (SIL 3)
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3. Product Specifications & Features
3.1 Core Specifications
The HIMA X-DI6401 985210212 is built for high-density, safety-focused signal acquisition. Its 64 independent channels enable efficient monitoring of large-scale industrial processes—such as a refinery’s multiple pressure points or a power plant’s valve positions—without requiring additional modules. Each channel features galvanic isolation to prevent cross-talk and signal interference, a critical requirement for accurate data transmission in noisy industrial environments.
The module’s 24 VDC input range (18–28 VDC) ensures compatibility with standard industrial sensors and switches, while its SIL 3 capability aligns with global safety standards for critical systems. The integrated RS485 and Ethernet interfaces facilitate remote diagnostics and status monitoring, allowing maintenance teams to identify channel faults or connection issues without on-site inspection. With a maximum current consumption of 1.5 A, it operates efficiently within typical industrial power budgets.
3.2 Key Features
- SIL 3 Safety Integrity: Certified to IEC 61508/IEC 61511 standards, the module forms reliable safety loops for critical applications. Its fault-detection mechanisms ensure that signal errors trigger immediate alerts, preventing unsafe process conditions.
- High Channel Density: 64 independent channels reduce the number of modules needed in large systems, saving rack space and installation costs. This makes it ideal for sprawling facilities like chemical plants or offshore platforms.
- Dual Contact Compatibility: Support for both dry (no external power) and wet (external power) contacts eliminates the need for adapter modules, simplifying integration with diverse sensor types—from passive emergency stops to active proximity switches.
- Robust Environmental Performance: Operating from -25°C to +60°C and resisting extreme humidity, the module performs reliably in harsh settings, including desert oil fields and coastal power plants. Its IP20 rating protects internal components from dust and debris.
- Advanced Diagnostics: Channel-level fault detection and real-time status updates enable predictive maintenance. The module automatically flags open circuits or short circuits, reducing troubleshooting time and unplanned downtime.
- Seamless System Integration: Designed for HIMA’s HIMax and HIMatrix systems (SIL 4-certified), it ensures plug-and-play compatibility with existing safety controllers. This minimizes configuration time and ensures system-wide safety compliance.
4. Other HIMA Digital Input Modules (Technical Parameters Table)
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Model Number
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Channels
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Input Voltage
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Safety Rating
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Key Features
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X-DI3201 985210201
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32
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24 VDC
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SIL 3
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32-channel compact design; Dry/wet contacts
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X-DI3203 985210221
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32
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48 VDC
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SIL 3
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Higher voltage compatibility; Galvanic isolation
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X-DI3204 985210230
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32
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24 VDC
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SIL 3
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Sequence of Events (SOE) logging; Fast response
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X-DI3205 985210231
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32
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8.2 VDC
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SIL 3
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Proximity switch support; Line monitoring
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X-DI6451 985010223
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64
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24 VDC
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Industrial
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High-density; Cost-effective non-SIL applications
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