DI811 ABB 3BSE008552R1 Digital Input Module

Overview

The DI811 Digital Input Module is designed for ABB S800 I/O systems, offering 16 channels of 48 V digital inputs with current sinking. It is ideal for industrial applications requiring high voltage supervision, input status monitoring, and noise filtering. The module features two isolated groups, each with 8 channels, and provides voltage supervision to detect errors in the input signal.

Technical Specifications

• Brand: ABB
• Model: DI811
• Rated Voltage: 48 V d.c. (36 to 60 V d.c. operational range)
• Input Signal Voltage:
  • “1” state: 30 to 60 V
  • “0” state: -60 to +10 V
• Nominal Input Current: 4 mA at 48 V d.c.
• Input Current:
  • “1” state: >2.0 mA
  • “0” state: <0.5 mA
• Input Impedance: 11 kΩ
• Maximum Field Cable Length: 600 meters (656 yd.)
• Filter Times: Selectable digital filter times of 2, 4, 8, or 16 ms
• Process Voltage Supervision: 2 channels (1 per group)
• Current Consumption (Modulebus): 50 mA
• Power Dissipation: 2.7 W
• Isolation: Groupwise isolated from ground
• Module Termination Units: TU810, TU812, TU814, TU818, TU830, TU833, TU838, or TU850
• MTU Keying Code: BD
• Rated Insulation Voltage: 50 V
• Dielectric Test Voltage: 500 V a.c.

FAQ

Q1: What does current sinking mean in the DI811 module?
A1: Current sinking refers to the method of detecting the input signal by drawing current through the input channels when the signal is high (logic “1”).

Q2: Can the DI811 module work with input voltages outside the specified range?
A2: The DI811 is designed to work within the voltage range of 36 to 60 V d.c. Exceeding this range could lead to malfunction or damage to the module.

Q3: How does the filter feature work?
A3: The module allows digital filtering of input signals, which means noise pulses shorter than the selected filter time (2, 4, 8, or 16 ms) are automatically filtered out, ensuring accurate signal processing.

Q4: What kind of cables are recommended for use with the DI811?
A4: The maximum recommended field cable length is 600 meters (656 yards) for proper signal integrity.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units