ABB DSDI120AV1 (3BSE018296R1) 32‑Channel Digital Input Module for Advant OCS / S100 I/O System

Description

ABB DSDI120AV1 (3BSE018296R1) 32‑Channel Digital Input Module for Advant OCS / S100 I/O System

Product Introduction

The ABB DSDI120AV1 is a high‑density rack‑mount digital input board belonging to the legacy ABB Advant S100 I/O series, with factory part code 3BSE018296R1. It serves as discrete signal acquisition hardware for the Advant OCS distributed control platform, transferring on‑site switch status into the DCS main controller. This module supports two signal reading modes: cyclic scanning and hardware interrupt triggering, to meet both general‑purpose monitoring and fast emergency signal capture requirements. Built‑in optical isolation suppresses field electromagnetic interference, making it widely deployed in power, pulp & paper, metallurgy and heavy process plants. As a mature long‑lifecycle DCS spare part, it is commonly stocked for system maintenance, retrofit and emergency replacement of aging Advant OCS control racks.

DSDI120AV1

Specific Application Information

• Discrete status collection: Capture dry contact feedback from limit switches, proximity sensors, relay contacts and push‑buttons.
• Interlock signal acquisition: Fast detection of emergency stop, safety gate and tripping signals via interrupt mode.
• Equipment running feedback: Receive ON/OFF status of motors, pumps, fans and conveyor drives.
• Valve position monitoring: Collect open/closed feedback signals of solenoid valves and pneumatic actuators.
• Plant alarm triggering: Transmit field fault and warning contact signals to Advant OCS alarm system.
• Sequence logic control: Supply digital status data for batch and sequential control logic in process lines.

Technical Parameters

Main Features

✅ High‑density 32‑channel design: Large‑capacity DI board to reduce rack slot consumption and cabinet wiring workload. ✅ Dual acquisition modes: Normal scan for ordinary status monitoring, interrupt trigger for fast‑response safety signals. ✅ Optoelectronic isolation protection: Block common‑mode noise and high‑voltage surge from field instruments. ✅ Channel status LED indicators: Visible on‑board LED for quick on‑site channel troubleshooting. ✅ Rugged industrial PCB design: Adapted to dusty, high‑vibration heavy‑industry workshops. ✅ Seamless Advant bus communication: Direct data exchange with Advant OCS controller through S100 backplane bus, no gateway required. ✅ Modular hot‑swap support: Replace defective module without shutting down the whole control rack. ✅ Long service life: Designed for 24/7 continuous operation in process plant DCS cabinets.

DSDI120AV1

Application Scenarios

1. Thermal Power Plants: Boiler auxiliary equipment status monitoring and interlock signal collection.
2. Pulp & Paper Mills: Pulping line, paper machine auxiliary discrete signal acquisition.
3. Metallurgical Plants: Smelting line equipment switch feedback and safety interlock monitoring.
4. Water & Wastewater Treatment: Pump station, gate valve on‑off status collection.
5. Chemical Process Industry: Field discrete instrument monitoring for continuous production lines.
6. Mining Processing Plants: Crushing & conveying equipment running status feedback.

Supporting Components

• ABB Advant S100 system rack & backplane
• Advant OCS main controller unit
• Rack 24VDC power supply module
• Field signal terminal base & terminal blocks
• Shielded field signal cables
• Advant engineering & diagnostic software
• Module mounting connectors
• Spare housing and replacement accessories

Related Series Models (ABB Advant S100 I/O Family, 8 Models)

1. DSDO110AV1 — 32‑Channel Digital Output Module
2. DSAI130AV1 — Analog Input Board
3. DSAO140AV1 — Analog Output Board
4. DSDI110AV1 — 16‑Channel Digital Input Module
5. DSBC170AV1 — Bus Communication Interface Board
6. DSSB140AV1 — System Backplane Unit
7. DSDO120AV1 — High‑capacity Digital Output Module
8. DSPC172AV1 — Processor Controller Board