ABB DSDI110A 57160001-AAA 32-channel optically isolated digital input board

ABB DSDI110A 57160001-AAA 32-channel optically isolated digital input board

ABB DSDI110A 57160001-AAA 32-channel optically isolated digital input board

Brand： ABB

Product ID： DSDI110A 57160001-AAA

Condition： New / used

Terms of payment： Paypal、T/T 、Western Union

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Description

ABB DSDI110A 57160001-AAA

I. Basic Information


Model: DSDI110A

Material Code: 57160001-AAA

Brand: ABB

Applicable System: ABB Advant Master, Advant OCS, System 800xA Control System, belonging to S100 series rack-mounted I/O hardware. It can be installed in local racks or deployed in remote I/O stations via MasterFieldbus fieldbus, used for collecting 24VDC passive/active digital switch signals from field valves, limit switches, relays and emergency stop devices.Product Type: Rack-mounted high-density 32-channel opto-isolated digital input board, adopting 4×8 channel grouping architecture. It integrates opto-isolated signal conditioning, hardware event detection, input filter, parallel backplane bus communication and channel fault diagnosis circuits, supporting two acquisition modes: cyclic scanning and interrupt triggering, serving as a universal high-density DI module for process industrial equipment status and safety interlock signal collection.


Product Positioning

DSDI110A 57160001-AAA is a high-density digital acquisition unit of ABB classic S100 I/O series. It integrates 32-channel 24VDC digital input channels to collect switch status signals such as pump/fan running feedback, valve position feedback, local/remote mode, equipment fault and emergency stop. All channels adopt independent opto-isolation design to resist field ground loop interference, inverter harmonics and electrostatic surge, avoiding signal abnormality caused by single-point circuit fault. Equipped with hardware event capture function, it can capture millisecond-level instantaneous switch changes without losing short interlock pulse signals. High-speed data interaction with the main controller is realized through Advant parallel backplane bus, widely used in measuring point expansion, faulty I/O board in-situ replacement and safety interlock signal renovation projects of legacy Advant DCS systems in thermal power, petrochemical, metallurgy, oil & gas and paper industries.


Hardware Architecture

  1. 32-channel Grouped Opto-isolated Input Unit: Designed with 4 independent groups of 8 channels each, each channel is equipped with opto-isolation circuit and RC hardware input filter, compatible with NPN active wet contact and passive dry contact. Each group has independent power conditioning to limit fault spread between groups.
  2. Hardware Event Detection & Signal Filter Unit: Built-in hardware transition event capture circuit can capture millisecond-level instantaneous signal jumps, with software-configurable anti-jitter filter to eliminate false alarms caused by contact bounce and electromagnetic interference.
  3. Advant Parallel Backplane Bus Interaction Unit: Dedicated S100 parallel I/O backplane bus supports cyclic polling and hardware interrupt data uploading, transmitting channel status, fault codes and event tags to the main controller, and receiving hardware address, acquisition mode and filter parameter configuration commands.
  4. Power-on Self-test & Status Indication Unit: Equipped with power RUN and bus communication LED indicators. Automatic full-loop self-inspection after power-on; channel fault information is uploaded to the upper system remotely for quick fault location.
  5. Standard European Rack Hot-swappable Installation Unit: Single-slot structure with double-sided gold-plated backplane fingers, supporting hot swapping and snap locking, suitable for dense cabinet layout and convenient spare part replacement.


Mounting Specifications

Control Power Supply: DC 24V (21.6V~28.8V), typical 5mA per channel, total power consumption ≤4WChannel Configuration: 32 opto-isolated digital inputs, divided into 4 groups × 8 channelsRated Input Signal: 24VDC active wet contact, passive dry contactInput Impedance: 10kΩSignal Response Time: ≤10ms, software configurable anti-jitter filterAcquisition Modes: Cyclic scanning, hardware interrupt event triggerMounting: Single-slot installation on standard S100 rack, hot-swappableOverall Dimension: 216mm(W) × 225mm(H) × 18mm(D)Net Weight: 0.34kgProtection Class: IP20, installed in sealed constant-temperature dust-proof industrial control cabinetSupporting Equipment: Advant redundant controller, S100 I/O rack, shielded signal cable, 24VDC terminal block, channel current-limiting fuseCommissioning Tools: ABB Advant Control Builder, digital multimeter, insulation tester, anti-static wristband


Supporting System

Supporting Hardware

Advant Controller410/450 redundant controller, S100 series I/O modules, MasterFieldbus shielded cable, signal lightning protection module, field limit switch, emergency stop button, relay.

Commissioning Tools

ABB Advant configuration software, hipot tester, infrared thermometer, signal calibrator.

Upper-level System

800xA automation platform, power plant DCS/SIS, industrial SCADA for equipment status monitoring, fault alarm, interlock event sequence recording and SOE playback.

Typical Application Industries

Thermal power plant FSSS boiler interlock signal collection, petrochemical plant safety ESD system monitoring, metallurgical production line limit and emergency stop signal acquisition, oil & gas pipeline station compressor interlock monitoring, paper and building material factory equipment fault status collection.


Product Features

  1. 32-channel High-density Grouped Isolated Acquisition: Centralized signal collection for 32 measuring points, grouped design limits fault influence range, saving cabinet slot resources for large-scale interlock measuring point deployment.
  2. Opto-isolation plus Hardware Anti-jitter Dual Anti-interference Design: 500VAC channel isolation plus configurable filter eliminates false alarms and false transitions caused by ground potential difference and contact bounce, ensuring stable operation of safety interlock loops.
  3. Dual Acquisition Modes for Safety Scenarios: Conventional scanning for routine monitoring, hardware interrupt mode for millisecond-level event recording, meeting SOE timing recording requirements of SIS safety systems.
  4. Wide-range 24VDC Signal Compatibility: Supports NPN active and passive dry contact modes switched by software configuration, compatible with most field switching devices without hardware jumper modification.
  5. Wide-temperature Industrial EMC Design: Compliant with EN 61000 standards, stable 7×24-hour operation under harsh industrial environments, MTBF ≥150000 hours.
  6. Full Backward Compatibility for In-situ Replacement: Pin-to-pin compatible with S100 rack hardware, no modification required for existing configuration and field wiring during spare part replacement to shorten maintenance downtime.



II. Technical Specifications


2.1 Electrical Parameters

Model: DSDI110A, Material Code: 57160001-AAAChannel Configuration: 32 opto-isolated digital inputs, 4 groups × 8 channelsRated Input Voltage: DC24V, typical 5mA per channelInput Impedance: 10kΩSupported Signal: NPN active wet contact, passive dry contactChannel Dielectric Withstand Voltage: 500VAC opto-isolation per channelSignal Response Time: ≤10ms, software configurable anti-jitter delayAcquisition Modes: Cyclic scanning, hardware interrupt event detectionPower Supply: DC24V ±20%, total power consumption ≤4WBus Type: S100 dedicated parallel I/O backplane busProtection Functions: Per-channel overvoltage, reverse polarity, surge suppression, group short-circuit current limiting protection


2.2 Mechanical Parameters

Mounting: Single-slot snap installation on S100 standard rack, hot-swappableDimension: 216mm × 225mm × 18mmNet Weight: 0.34kgInterfaces: Double-sided gold-plated parallel bus fingers, front panel power and communication indicatorsCooling Mode: Natural convection air cooling, fanless design


2.3 Environmental Specifications

Operating Temperature: -20℃ ~ +55℃Storage & Transportation Temperature: -40℃ ~ +70℃Humidity: 5%~95%RH, non-condensing, no corrosive or conductive dust


III. Key Features


  1. Centralized Collection of Mass Field Switch Status: Collects valve feedback, equipment operation, fault alarm, limit and emergency stop signals to provide digital data support for equipment monitoring, interlock protection and SOE event recording.
  2. Dual Acquisition Modes for Conventional and Safety Applications: Cyclic scanning for real-time status monitoring; interrupt mode for accurate recording of instantaneous protection action events to meet safety system timing traceability requirements.
  3. Software-configurable Multi-type Switch Signal Adaptation: Switches between active and passive input modes via configuration software to adapt to proximity switches, limit switches and emergency stop buttons.
  4. Group-level Fault Isolation & Remote Alarm Upload: Single-channel fault only affects the local group, other groups work normally; fault codes and abnormal group numbers are uploaded remotely for rapid troubleshooting.
  5. Software Anti-jitter Filter Eliminates Interference Signals: Configurable delay filtering suppresses false transitions caused by electromagnetic interference and mechanical contact bounce to avoid accidental interlock triggering.
  6. Retrofit & Spare Part Compatibility for Legacy DCS: Ideal for high-density interlock measuring point expansion and in-situ replacement of aging DI modules, maximizing reuse of existing cabinet, wiring and configuration resources.


IV. Working Principle


After 24VDC power-on, the module completes self-test of power supply, backplane bus and all input channels, then waits for configuration parameters from the main controller. Field switch signals are filtered and opto-isolated before being collected by register circuits; hardware interrupt captures level transitions and uploads event tags via polling or active interrupt mode. Once overvoltage, reverse polarity or short-circuit faults occur, the faulty channel is locked with fault status uploaded remotely, and function can be restored by remote reset after troubleshooting.


V. Application Scenarios


  1. FSSS safety interlock signal collection for thermal power plant Advant DCS systems.
  2. ESD emergency protection status monitoring for petrochemical and coal chemical process plants.
  3. Limit switch and safety emergency stop signal acquisition for metallurgical hot rolling and sintering production lines.
  4. Compressor interlock and valve status monitoring for long-distance oil & gas pipeline stations.
  5. Technical renovation and measuring point expansion projects of legacy Advant automation systems with faulty DSDI110A module replacement.

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