Description

ABB DSDI110AV1 3BSE018295R1 Digital Input Board Product Description

Technical Specifications

• Product Model: DSDI110AV1 3BSE018295R1
• Brand: ABB
• Warranty: One Year
• Input Voltage: 10‑30 VDC, nominal 24 VDC wet contact
• Operating Temperature: -25°C to +60°C (horizontal cabinet mounting)
• Storage Temperature: -40°C to +85°C (non‑condensing)
• Response Time: 2‑6 ms, software‑configurable filter setting
• Protection Class: IP20 (cabinet‑mount only)
• Accuracy Class: Industrial grade discrete signal recognition
• Output Frequency: ModuleBus backplane scan 100 ms cycle
• Rated Current Range: 3‑10 mA per input channel; max 6 W module power draw
• Communication Interface: S800 ModuleBus backplane interface
• Supported Protocols: S800 internal bus, PROFIBUS‑DP via communication interface unit
• Overload Capacity: Group‑wise 500 V AC opto‑galvanic isolation, transient surge protection
• Dimensions: 229.5 mm × 234 mm × 18 mmABB Group

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Product Overview

The DSDI110AV1 3BSE018295R1 is a 32‑channel galvanically isolated digital input board built for ABB S800 I/O and 800xA process control systemsABB Group. This hardware captures wet‑contact discrete signals from field switches, relay contacts and sensors, transferring status data to ABB process controllers for real‑time plant monitoring and interlock logic execution. It addresses common field‑side pain points such as electrical noise interference, limited channel density, and inconsistent contact‑signal sampling. The ABB board supports sequence‑of‑events timestamping for fault tracing and configurable input filtering to suppress field‑contact bounce. It serves plant maintenance engineers, system integrators and operation teams who need dependable high‑density digital input hardware for retrofits and new DCS deployments.

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Key Functions

High‑Density 32‑Channel Discrete Signal Acquisition

This ABB input board delivers 32 independent digital inputs partitioned into isolated channel groups. High channel density reduces total I/O slot consumption inside control cabinets, lowering cabinet footprint and wiring workload for large‑scale process sites. Multiple field devices can connect to one single board without adding extra I/O racks.

Group‑Based Galvanic Opto‑Isolation

Channel groups feature 500 V AC opto‑isolation against the control backplane. This design blocks ground loops and high‑voltage transients originating on‑site, preventing electrical disturbance from propagating into the main controller hardware. Isolation improves system uptime when connecting to noisy motor‑driven field equipment.

Software‑Configurable Input Debounce Filter

Users adjust filter parameters via control‑system software to suppress mechanical‑contact bounce. Tunable response timing allows the module to ignore short spurious pulses while preserving valid state‑change events. This reduces false alarms triggered by worn mechanical switches without hardware modification.