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                                                                                                                                                                                                                                                                                        • ABB DI818 3BSE069052R1 Digital Input Module

                                                                                                                                                                                                                                                                                          Product Description

                                                                                                                                                                                                                                                                                          The ABB DI818 (3BSE069052R1) Digital Input Module is a 32-channel 24 VDC digital input module designed for the ABB S800 I/O system. It is used in ABB 800xA / Freelance control systems for collecting ON/OFF signals from field devices such as switches, sensors, limit switches, and auxiliary contacts.

                                                                                                                                                                                                                                                                                          The DI818 provides electrically isolated digital input channels with signal filtering and voltage supervision functions, ensuring reliable signal acquisition in industrial automation and process control applications.

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                                                                                                                                                                                                                                                                                          Detailed Specifications

                                                                                                                                                                                                                                                                                          Parameter	Specification
                                                                                                                                                                                                                                                                                          Manufacturer	ABB
                                                                                                                                                                                                                                                                                          Model	DI818
                                                                                                                                                                                                                                                                                          Part Number	3BSE069052R1
                                                                                                                                                                                                                                                                                          Product Type	Digital Input Module
                                                                                                                                                                                                                                                                                          System	ABB S800 I/O
                                                                                                                                                                                                                                                                                          Input Type	Digital Input
                                                                                                                                                                                                                                                                                          Number of Channels	32 Channels
                                                                                                                                                                                                                                                                                          Input Voltage	24 VDC
                                                                                                                                                                                                                                                                                          Input Voltage Range	18–30 VDC
                                                                                                                                                                                                                                                                                          Signal Type	Current Sinking
                                                                                                                                                                                                                                                                                          Input Current	Approx. 4.3 mA @ 24 VDC
                                                                                                                                                                                                                                                                                          Isolation	2 isolated groups (16 channels each)
                                                                                                                                                                                                                                                                                          Signal Filtering	2 / 4 / 8 / 16 ms selectable
                                                                                                                                                                                                                                                                                          HART Support	No
                                                                                                                                                                                                                                                                                          Redundancy	No
                                                                                                                                                                                                                                                                                          Mounting	S800 I/O Rack / MTU Connection
                                                                                                                                                                                                                                                                                          Compatible MTU	TU818, TU819, TU830
                                                                                                                                                                                                                                                                                          Protection Class	IP20
                                                                                                                                                                                                                                                                                          Weight	Approx. 0.18 kg

                                                                                                                                                                                                                                                                                           

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                                                                                                                                                                                                                                                                                          Advantages & Features

                                                                                                                                                                                                                                                                                          • Original ABB S800 I/O digital input module
                                                                                                                                                                                                                                                                                          • 32-channel 24 VDC signal acquisition
                                                                                                                                                                                                                                                                                          • Two electrically isolated input groups for improved system reliability
                                                                                                                                                                                                                                                                                          • Built-in LED status indication for each channel
                                                                                                                                                                                                                                                                                          • Supports voltage supervision and fault indication
                                                                                                                                                                                                                                                                                          • Provides EMC protection and optical isolation
                                                                                                                                                                                                                                                                                          • Compact modular design for control cabinet installation
                                                                                                                                                                                                                                                                                          • Suitable for ABB 800xA and Freelance automation systems

                                                                                                                                                                                                                                                                                           

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                                                                                                                                                                                                                                                                                          Applications

                                                                                                                                                                                                                                                                                          • ABB System 800xA DCS Systems
                                                                                                                                                                                                                                                                                          • ABB Freelance Control Systems
                                                                                                                                                                                                                                                                                          • Process Automation Plants
                                                                                                                                                                                                                                                                                          • Power Generation Systems
                                                                                                                                                                                                                                                                                          • Oil & Gas Facilities
                                                                                                                                                                                                                                                                                          • Chemical Industry Control
                                                                                                                                                                                                                                                                                          • Water Treatment Systems
                                                                                                                                                                                                                                                                                          • Factory Automation Equipment

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                                                                                                                                                                                                                                                                                          Precautions

                                                                                                                                                                                                                                                                                          • Verify compatibility with the existing ABB S800 I/O configuration before installation.
                                                                                                                                                                                                                                                                                          • Confirm the correct MTU terminal unit (TU818/TU819/TU830).
                                                                                                                                                                                                                                                                                          • Check field wiring and input signal polarity before replacement.
                                                                                                                                                                                                                                                                                          • Backup I/O configuration parameters before changing modules.

The structure and details of the product：