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Allen-Bradley 1747-SDN DeviceNet Scanner Module

1. Product Description

The 1747-SDN is a DeviceNet scanner module designed for SLC 500 series PLCs, enabling communication between SLC 5/02 (or later) controllers and DeviceNet networks. It supports up to 63 nodes at 125 Kbps and functions as a bridge between DeviceNet devices and the SLC processor .

2. Key Features

Communication Modes
- Supports polled, strobed, change-of-state, cyclic I/O, and passthru configurations .
- Passthru mode allows bridging between separate DeviceNet networks, replacing legacy interfaces like 1770-KFD and 1784-PCD .
Hardware & Diagnostics
- Two LED indicators (module status & network link) and an LCD display for address/error reporting .
- 10-pin linear connector for DeviceNet wiring .
Robust Industrial Design
- Operating temperature: 0°C to 60°C (32°F to 140°F) .
- Vibration/Shock resistance: 2G (10–500Hz) / 30G impact .
- Isolation: 30V circuit isolation (tested at 500V AC for 60 sec) .
Compatibility
- Works with SLC 5/02, 5/03, 5/04, and 5/05 processors .

3. Technical Specifications

Parameter	Value
Backplane Current	500mA @ 5V DC, 90mA @ 24V DC
Max Nodes	63
Baud Rate	125 Kbps
Certifications	CE, c-UL-us, GOST
Enclosure	Open-style (IP20)

4. Applications

Industrial Automation: Connects sensors, drives, and I/O devices on DeviceNet networks .
Process Control: Integrates with PLCs for real-time monitoring in manufacturing, energy, and water treatment systems .

5. Installation & Precautions

Wiring: Ensure proper grounding to minimize noise interference .
Node Addressing: Avoid duplicate addresses (use 0–62; reserve 63 for new devices) .
Compatibility: Verify controller support (SLC 5/02 or later) .