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ABB DSTD197 Connection Unit
1. Product Overview
The ABB DSTD197 is a key component for industrial control/automation systems, enabling reliable communication between PLCs, remote I/O modules, and field sensors/actuators. It simplifies wiring and signal transmission, enhancing system stability and maintainability via standardized interfaces.
2. Technical Specifications
2.1 Connection Interfaces
- Ports: RS-485 (half-duplex, 1200m max distance, 1200-115200 bps) and Ethernet (IEEE 802.3, 100 Mbps max).
- Signal Compatibility: Handles 24 V DC digital signals; supports 0-10 V DC/4-20 mA analog signals (for temperature/pressure/flow sensors).
2.2 Power Requirements
- Supply Voltage: 24 V DC ±15% (built-in over/under-voltage protection).
- Power Consumption: ~5 W (normal operation, energy-efficient).
2.3 Mechanical & Physical Attributes
- Dimensions: 100×80×50 mm (L×W×H, compact for tight spaces).
- Mounting: DIN-rail (EN 50022) or panel-mount (via screw holes).
- Weight: ~200 g (lightweight for easy installation).
2.4 Environmental Adaptability
- Temp Range: -20°C ~ +60°C (suitable for cold/hot industrial environments).
- Humidity: 5%-95% (non-condensing).
- Vibration/Shock: Complies with IEC 60068-2-6 (10-500 Hz, 1.5 g) and IEC 60068-2-27 (25 g, 11 ms).
3. Application Fields
3.1 Manufacturing
- Assembly Lines: Connects proximity sensors/actuators to PLCs for real-time part handling/positioning.
- Quality Control: Links vision cameras to systems for fast defect-detection data transfer.
3.2 Process Control
- Chemical/Petrochemical Plants: Connects field instruments (pressure/temp/flow meters) to DCS (long-distance via RS-485).
- Water/Wastewater Plants: Links pumps, valves, and level sensors to controls (digital for on/off; analog for level monitoring).
3.3 Energy Sector
- Power Plants: Connects turbine vibration sensors to systems for health monitoring.
- Smart Grids: Facilitates data transfer between distributed energy resources (solar/wind) and grid management (via Ethernet).
4. Installation & Maintenance
4.1 Installation
- Mounting: Slide onto DIN-rail (lock in place) or panel-mount with screws.
- Wiring: Connect power (ensure polarity); use shielded cables for RS-485/Ethernet (reduce EMI); secure terminals.
- Configuration: Set baud rate/IP address via software or DIP switches.
4.2 Maintenance
- Inspection: Check for physical damage/loose connections; monitor status LEDs (green = normal, red = fault).
- Cleaning: Remove dust with a dry soft brush (prevents overheating).
- Firmware: Update to latest ABB releases (follow official guidelines for safety).
The structure and details of the product:

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