DI880 3BSE028586R1 Digital Input Module

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	DI880 3BSE028586R1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Description

The DI880 3BSE028586R1 is a 16 channel 24 V d.c. digital input module for single or redundant configuration. The input voltage range is 18 to 30 V d.c. and the input current is 7 mA at 24 V d.c. Each input channel consists of current limiting components, EMC protection components, input state indication LED and optical isolation barrier. There is one current limited transducer power output per input. The Sequence of Event function (SOE) can collect events with a resolution of 1 ms. The event queue can contain up to 512 x 16 events. The function include a Shutter filter for suppression of unwanted events. The SOE function can report the following status in the event message – Channel value, Queue full, Synchronization jitter, Uncertain time, Shutter filter active and Channel error.

Environment and certification

Applications

Oil, petrochemical, and gas plants:

Analysis: Used in Emergency Shutdown (ESD) and High Pressure Protection Systems (HIPPS). Monitors pressure switches and emergency stop buttons; in case of exceeding limits, the DI880 must ensure 100% execution of commands to prevent explosions or leaks.

Large chemical and pharmaceutical plants:

Analysis: Monitors critical interlocks in reactors. Its SIL3-level reliability prevents runaway chemical reactions and protects the surrounding environment.

Nuclear and large thermal power plants:

Analysis: Used for turbine overspeed protection and boiler flameout protection (BMS). In extreme environments, the DI880's high immunity prevents huge economic losses from false trips.

High-risk machining plants:

Analysis: Controls safety light curtains and safety doors on heavy presses or automated production lines. Prevents personnel from accidentally entering and causing injury or death.

Features and benefits

16 channels for 24 V d.c. inputs with current sinking

Redundant or single configuration

1 group of 16 isolated from ground

Input status indicators

Advanced on-board diagnostics

Sequence of events (SOE)

Current limited sensor supply per channel

Certified for SIL3 according to IEC 61508

Certified for Category 4 according to EN 954-1

Diagnostics

Front LED’s: F(ault), R(un), W(arning), P(rimary), Channel 1-16 Status

Supervision: Process power, Internal circuitry

Status indication of supervision : Module Error, Module Warning, Internal channel error

Compatibility

Use with MTU: TU810, TU812, TU814, TU818, TU830, TU833, TU842, TU843, TU852

Keying code: FF

FAQ

Q1: Can the DI880 be used as a regular DI module (such as the DI810)?
A: Physically, yes, but it's extremely wasteful. Its price is significantly higher than a regular module, and it only achieves its SIL3 functionality under the safety controller of an 800xA system.

Q2: Why is the DI880's panel light green?
A: This is the visual standard for ABB S800 I/O—green represents the safety series, making it easy for maintenance personnel to distinguish between normal and safety signals in the rack at a glance.

Q3: Does it support hot-swapping?
A: Yes. However, before hot-swapping in a safety system, it must be confirmed that the redundant module is working properly, or that necessary process bypass measures have been taken.

Q4: Why is the signal response slightly slower than a regular module?
A: Safety modules require multiple logic checks and internal voting, which introduces a very small processing delay to ensure the "absolute correctness" of instructions.

Q5: What is its maximum channel current?
A: The typical input current is about 2-3mA, and it has short-circuit current limiting, which can effectively protect the front-end sensor.