ABB DI840 24V DC Digital Input Module | 3BSE020836R1

ABB DI840 Digital Input Module - Technical Specifications

Core Product Specifications

• Manufacturer: ABB
• Model Designation: DI840
• Product Identification: 3BSE020836R1
• Product Series: S800 I/O System
• Module Weight: 0.15 kg
• Signal Specification: 24 V DC
• Redundancy Support: Yes

Electrical Specifications

• Input Channel Count: 16 channels
• Input Voltage Range: 18-30 V DC
• Nominal Voltage: 24 V DC
• Current Consumption: 7 mA per channel at 24V
• Logic "0" Level: -30 to +5 V
• Logic "1" Level: 11 to 30 V
• Input Impedance: 3.3 kΩ
• Power Dissipation: 2.7 W typical

Redundant Operation Features

• Redundancy Support: Single or redundant applications
• Isolation Scheme: Groupwise isolated from ground
• Group Configuration: 1 group of 16 channels
• Transducer Power: Supervised and current limited
• Power Distribution: One output per two input channels

Sequence of Event Features

• SOE Functionality: Advanced event recording
• Event Resolution: 1 ms precision
• Event Accuracy: 0 ms to +1.3 ms
• Queue Capacity: Up to 257 events
• Shutter Filter: Unwanted event filtering

Signal Processing and Filtering

• Digital Filters: 0-127 ms selectable range
• Filter Function: Enhanced signal conditioning
• Noise Immunity: Programmable filtering
• Cable Length: 600 meters maximum

Power Management

• ModuleBus +5V: 100 mA current consumption
• External +24V: 15 mA + transducer power
• Maximum Current: 335 mA total maximum
• Transducer Power: Built-in current limited supply

Diagnostics and Monitoring

• Advanced Diagnostics: On-board diagnostic features
• Process Power Supervision: Continuous monitoring
• Internal Circuitry: Comprehensive system checks
• Status LEDs: Fault, Run, Warning, Channel status
• Error Indication: Module Error, Module Warning, Channel Error

Physical Specifications

• Width: 45 mm
• Depth: 102 mm (111 mm with connector)
• Height: 119 mm
• Weight: 0.15 kg
• Mechanics: S800 form factor

Environmental and Compliance

• Operating Temperature: 0 to +55 °C
• Storage Temperature: -40 to +70 °C
• Hazardous Location: C1 Div 2 cULus, ATEX Zone 2
• Marine Certificates: BV, DNV, LR
• RoHS Compliance: DIRECTIVE/2011/65/EU
• Protection Class: IP20 according to IEC 60529

Compatibility Information

• Compatible MTUs: TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU842, TU843, TU852
• Keying Code: CD
• System Integration: S800 I/O architecture

Primary Applications

• Critical process control systems
• Redundant automation applications
• High-reliability industrial systems
• Sequence of event recording requirements
• Process monitoring with transducer power

Technical Highlights

• 16-channel design supporting redundant operation
• Advanced SOE functionality with 1ms resolution
• Built-in transducer power distribution
• Extended filtering range up to 127ms
• Comprehensive on-board diagnostics

Frequently Asked Questions

What redundancy features does DI840 offer?

The DI840 supports both single and redundant operation for critical applications.

What is the SOE capability?

Features 1ms event resolution with capacity for 257 events in queue.

How is transducer power managed?

Provides supervised and current-limited transducer power with one output per two input channels.

What filtering options are available?

Offers programmable digital filtering from 0-127ms with shutter filter capability.

Contact Information

For pricing information and technical support:
Email: sale@etowonauto.com