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ABB DSIC111 Communication Module  

1. Key Parameters

• Product Model: DSIC111
• Product Series: ABB S800 I/O Low-Speed Fieldbus Communication Modules
• Core Function: Enables bidirectional data exchange between S800 I/O systems and low-speed fieldbus devices (Modbus RTU, RS-485); translates S800 backplane protocol to fieldbus protocols; provides surge protection and communication diagnostics; supports point-to-point or multi-drop network topologies
• Communication & Protocol Specifications:

  Parameter	Details	Performance Metrics
  Supported Protocols	- Primary: Modbus RTU (slave/master mode, IEC 61158) - Secondary: Generic RS-485 (ASCII/RTU, configurable baud rate) - Protocol Translation: S800 backplane ↔ Modbus RTU/RS-485 (real-time)	Modbus RTU support enables integration with legacy devices (e.g., old HVAC controllers, pressure transmitters); generic RS-485 supports custom protocols
  Network Configuration	- Physical Layer: RS-485 (2-wire differential) - Baud Rate: 300bps~115.2kbps (configurable via DIP switch/software) - Parity: None/Even/Odd (selectable) - Stop Bits: 1/2 (selectable) - Maximum Nodes: 32 devices per multi-drop network (with 120Ω termination)	Flexible baud rate/parity settings adapt to diverse field devices; multi-drop topology reduces wiring costs for distributed systems
  Data Transfer	- Data Rate: Up to 115.2kbps (max baud rate) - Latency: <10ms (end-to-end protocol translation) - Supported Data Types: Digital I/O (coils, discrete inputs), analog values (holding registers, input registers) - Maximum Data Points: 128 digital / 32 analog (per module)	Low latency ensures real-time communication for time-sensitive auxiliary systems (e.g., small pump control); supports sufficient data points for small-scale applications

• Protection & Mechanical Specifications:

  Parameter	Details	Performance Metrics
  Electrical Protection	- Surge Protection: ±15kV ESD (IEC 61000-4-2); ±8kV surge (IEC 61000-4-5) on RS-485 ports - Polarity Protection: Reverse polarity tolerance (-15V DC) for RS-485 lines - EMC Compliance: EN 61326-3-1 (industrial noise immunity, Class B)	Surge protection withstands common field transients (e.g., lightning-induced spikes, power line noise); polarity protection prevents damage from incorrect wiring
  Mechanical Design	- Dimensions: 100mm (W) × 160mm (H) × 210mm (D) (S800 module form factor) - Mounting Type: ABB DSBB102/DSBB107 bus backplanes (35mm DIN rail compatible via adapter) - Housing Material: Flame-retardant ABS plastic (UL 94 V0) with basic EMI shielding - Weight: Approximately 550g - LED Indicators: 4 LEDs (power, S800 communication, fieldbus communication, fault)	Compact size fits space-constrained cabinets (e.g., machine-mounted control boxes); LEDs provide at-a-glance network health monitoring

• Environmental & Compliance Ratings:
  • Operating Temperature Range: -25℃~+70℃ (-13℉~158℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: 5%~95% RH (non-condensing, 40℃)
  • Vibration Resistance: 10~500Hz, 1g acceleration (IEC 60068-2-6)
  • Shock Resistance: 20g (11ms half-sine, IEC 60068-2-27)
  • Compliance Standards: CE, RoHS, IEC 61131-2, UL 508, CSA C22.2 No.14 |

2. Core Features

• Dual Protocol Support (Modbus RTU/RS-485): Integrates seamlessly with both standard Modbus devices (e.g., legacy sensors, third-party controllers) and custom RS-485 equipment—eliminates the need for multiple communication modules, reducing hardware costs and rack space.
• Real-Time Protocol Translation: Translates data between S800 backplane and fieldbus networks with <10ms latency—ensures timely communication for low-speed auxiliary systems (e.g., small HVAC zones, water pump control), avoiding process delays.
• Basic Electrical Protection: ±15kV ESD and ±8kV surge protection on RS-485 ports—withstands common field transients (e.g., accidental short circuits, power line noise) and reverse polarity wiring, reducing field service calls.
• Flexible Network Topologies: Supports point-to-point or multi-drop RS-485 networks—multi-drop mode connects up to 32 devices, minimizing wiring complexity and costs for distributed systems (e.g., a row of temperature sensors in a warehouse).
• Seamless S800 Integration: Plugs directly into DSBB-series backplanes and auto-detects via S800 bus—requires no manual configuration of protocol mappings for standard Modbus devices, reducing commissioning time by 30%.
• At-A-Glance Diagnostics: 4 status LEDs (power, S800 comm, fieldbus comm, fault)—enables technicians to quickly identify issues (e.g., fieldbus communication loss) without connecting to a controller, cutting troubleshooting time by 50%.
• Compact, Cost-Effective Design: Small form factor and affordable pricing—ideal for small-scale applications (e.g., machine tool auxiliaries, building automation) where high-speed communication or redundancy is not required.
• Wide Environmental Range: Operates from -25℃ to +70℃—functions reliably in unconditioned environments (e.g., outdoor kiosks, factory floor cabinets) without additional heating/cooling, expanding deployment flexibility.

3. Application Fields

• Building Automation Systems: Connecting legacy HVAC/lighting controls:
  • Commercial Offices: Integrates legacy Modbus RTU HVAC controllers (e.g., air handler units) with S800 I/O—translates temperature setpoints and fan speed commands between networks; multi-drop mode connects up to 32 controllers, reducing wiring costs.
  • Retail Stores: Links RS-485-based lighting dimmers and occupancy sensors to S800 systems—basic surge protection withstands power line noise from store equipment, ensuring stable communication.
• Small-Scale Process Skids: Low-cost communication for auxiliary processes:
  • Water Treatment Skids: Connects Modbus RTU pressure sensors and small pump controllers to S800 I/O—translates sensor data to S800 backplane for monitoring; compact size fits skid-mounted control cabinets.
  • Chemical Dosing Skids: Integrates RS-485 dosing pumps with S800 controllers—configurable baud rate matches pump communication settings, enabling remote adjustment of dosing rates.
• Machine Tool Auxiliaries: Communicating with secondary equipment:
  • CNC Mills: Connects Modbus RTU coolant level sensors and chip conveyor controllers to S800 I/O—translates sensor alerts (e.g., low coolant) to the main controller, triggering maintenance notifications.
  • 3D Printers (Industrial): Links RS-485 heated bed controllers to S800 systems—enables remote monitoring of bed temperature, avoiding print failures due to temperature fluctuations.
• Legacy Equipment Modernization: Upgrading old systems without replacement:
  • Old Manufacturing Lines: Integrates legacy Modbus RTU temperature controllers (no S800 compatibility) with new S800 I/O—avoids costly replacement of functional equipment, extending asset lifespan by 5+ years.
  • Industrial Ovens: Connects RS-485 temperature probes and door interlocks to S800 controllers—protocol translation enables modern monitoring and control of aging ovens, improving process consistency.

The structure and details of the product：

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