ABB DI801 S800L Digital Input Module

Product Description

The ABB DI801 (Global Article Number: 3BSE020508R1) is a high-density, cost-effective 16-channel Digital Input Module designed for the S800L distributed I/O platform. Operating on a nominal 24 VDC signal specification, this module uses a current sinking configuration to monitor binary on/off states from proximity sensors, pushbuttons, and mechanical limit switches. 

Technical Specifications

• Article Number: 3BSE020508R1

• Module Type Code: DI801

• I/O Platform Architecture: S800L System Mechanics

• Number of Input Channels: 16 Channels

• Signal Specification: 24 VDC Nominal

• Signal Input Type: Current Sinking

• Input Voltage Range ("0" State): -30 V to +5 V

• Input Voltage Range ("1" State): 15 V to 30 V

• Input Impedance: 3.5 kOhm

• Isolation Barrier: Groupwise isolated from ground

• Selectable Digital Filter Times: 2 ms, 4 ms, 8 ms, 16 ms

• Maximum Field Cable Length: 600 meters (656 yards)

• Rated Insulation and Dielectric Test Voltage: 50 V / 500 V

• Typical Power Dissipation: 2.2 W

• ModuleBus Current Consumption: 70 mA at +5 V (0 mA at +24 V)

• Supported Solid Wire Size: 0.05 to 2.5 mm² (30 to 12 AWG)

• Supported Stranded Wire Size: 0.05 to 1.5 mm² (30 to 12 AWG)

• Terminal Screw Torque and Strip Length: 0.5 to 0.6 Nm / 6.0 to 7.5 mm (0.24 to 0.30 inch)

• Dimensions (W x D x H): 86.1 mm x 58.5 mm x 110 mm (3.4 inch x 2.3 inch x 4.33 inch)

• Net Weight: 0.24 kg (0.53 lbs)

Industrial Application Scenarios

The ABB DI801 is a standard component within mid-sized Process Automation systems, often operating alongside ABB Ability System 800xA or Freelance DCS controllers. Thanks to its current sinking circuit profile, it interfaces natively with 24V sourcing (PNP) field instrumentation. Common physical deployments include manufacturing conveyor control, water treatment pump sequencing, and HVAC air handling networks. Because the card supports an impressive maximum field cable length of up to 600 meters, engineering teams can deploy the S800L rack directly into localized marshalling boxes deep within processing bays. This drastically reduces multi-core copper wiring overhead by multiplexing the signals locally before running a single fiber or bus connection back to the main control room server.