ABB DI840 3BSE020836R1 Digital input module

Specific Parameters

Electrical Parameters
Number of Input Channels: 16 channels, current sinking type input
Input Voltage Range: 18-30V DC, “0” state signal range -30 to +5V DC
Input Current: 7mA per channel at 24V DC
Input Impedance: 3.3kΩ
Isolation Level: 16 channels as one group, group-wise isolated from ground, dielectric test voltage 500V AC
Power Supply: Powered by I/O rack bus, +5V module bus current consumption 70mA, +24V module bus current consumption 0mA
Power Dissipation: Typical 2.7W
Transducer Power Supply: With monitoring and current limiting functions, 1 output shared by every two channels
Environmental Parameters
Operating Temperature: -40°C to 70°C
Storage Temperature: -40°C to 85°C
Relative Humidity: 5% to 95% (non-condensing)
EMC Immunity: Integrated EMC protection components, compliant with industrial-grade EMC standards
Protection Class: IP20 (module itself, dependent on I/O rack protection)
Certification Standards: CE, UL 508
Mechanical Parameters
Dimensions: Approximately 110mm×160mm×120mm (H×W×D)
Weight: Approximately 0.8kg
Mounting Method: Plug-in installation in AC 800M series I/O racks, supporting redundant configuration
Housing Material: Flame-retardant reinforced plastic, meeting industrial environment durability requirements
Terminal Compatibility: Compatible with TU 810, TU 812, TU 814, TU 830 and other terminal units
Indicators: Each channel with input status indicator LED, module power and fault indicator LEDs

Product Performance

The module has Sequence of Events (SOE) function with event acquisition resolution up to 1ms, event queue capable of storing 257 events, and built-in shutter filter to eliminate invalid interference signals. The 16 channels adopt group isolation design, combined with current limiting components and EMC protection modules, which can resist on-site surge and electromagnetic interference, ensuring stable signal acquisition.

Integrated with advanced on-board diagnostic system, it can real-time monitor transducer power status, channel input abnormalities and module communication faults. Fault information is uploaded to the controller via I/O bus in real time, with diagnostic coverage ≥99%. It supports flexible configuration of single system and redundant system, and can form double protection with the controller in redundant applications, adapting to 24/7 continuous production scenarios.

Fully compatible with AC 800M series controllers, data transmission delay ≤10ms. Parameter configuration and function activation can be completed through configuration software without additional drivers. It has strong compatibility with terminal units, simplifying on-site wiring and maintenance processes.

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