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1747-SDN DeviceNet Scanner Module – Detailed Product Introduction and Technical Specifications
Product Overview
The 1747-SDN is a DeviceNet Scanner Module used in SLC 500 programmable logic controller systems. It is designed to enable communication between an SLC processor and DeviceNet field devices such as sensors, actuators, motor starters, drives, and distributed I/O modules.
This module plays a central role in industrial automation systems that require decentralized control and real-time field device communication.
It allows the PLC to act as a master (scanner) on the DeviceNet network, controlling multiple slave devices in a synchronized and deterministic manner.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-SDN |
| Product Type | DeviceNet Scanner Module |
| Product Family | SLC 500 Series |
| Series | SLC Communication / Network Modules |
| Main Function | DeviceNet Network Scanner |
| Communication Protocol | DeviceNet (CAN-based) |
| Installation Type | PLC Rack Module |
Product Series Introduction
SLC 500 Network Integration
The SLC 500 system is a modular PLC platform used in industrial automation applications.
Communication modules such as the 1747-SDN extend system capability by enabling field-level network integration.
DeviceNet is a low-cost, high-efficiency industrial network based on CAN technology, widely used for connecting sensors and actuators in distributed automation systems.
The 1747-SDN acts as the master scanner, managing all communication between the PLC and DeviceNet slave devices.
Detailed Technical Specifications of 1747-SDN
| Parameter | Specification |
|---|---|
| Model | 1747-SDN |
| Product Type | DeviceNet Scanner Module |
| Communication Protocol | DeviceNet (CAN-based network) |
| Baud Rates Supported | 125 kbps / 250 kbps / 500 kbps |
| Maximum Nodes | Up to 64 DeviceNet devices |
| Function | Network scanner / master controller |
| Compatible Controllers | SLC 5/02, 5/03, 5/04, 5/05 |
| I/O Data Capacity | High-speed cyclic I/O exchange |
| Network Power | Supplied via DeviceNet network |
| Backplane Current (5V DC) | ~800 mA |
| Isolation | Optical isolation between backplane and network |
| Network Topology | Trunk-line/drop-line |
| LED Indicators | Module status, network status, communication |
| Configuration Tool | RSNetWorx / PLC programming software |
| Slot Requirement | SLC rack slot (non-CPU slot) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Shock Resistance | Industrial standard |
| Vibration Resistance | IEC industrial grade |
| Dimensions | ~14 × 5 × 15 cm |
| Weight (kg) | ~0.40–0.50 kg (turn0search0, turn0search2) |
Product Features
1. DeviceNet Master Control Capability
The 1747-SDN acts as the master scanner on a DeviceNet network, controlling multiple slave devices such as sensors, valves, and drives.
2. High-Speed Industrial Communication
Supports multiple baud rates up to 500 kbps, enabling fast and efficient data exchange between PLC and field devices.
3. Flexible Device Integration
Allows integration of up to 64 nodes, supporting large distributed control systems.
4. Real-Time I/O Data Exchange
Provides cyclic data communication for real-time process control and monitoring.
5. Industrial Rugged Design
Built for harsh industrial environments with strong resistance to vibration, electrical noise, and temperature variations.
Product Applications
Distributed I/O Systems
Used to connect remote sensors and actuators in large industrial automation systems.
Manufacturing Automation
Common in assembly lines, packaging machines, and production systems.
Motor and Drive Control
Used for controlling variable frequency drives and motor starters over DeviceNet.
Process Control Systems
Applied in chemical plants, water treatment systems, and continuous production lines.
Factory Automation Networks
Widely used in legacy DeviceNet-based industrial installations.
Product Advantages
| Advantage | Description |
|---|---|
| Master Scanner Function | Controls entire DeviceNet network |
| Supports 64 Nodes | High device connectivity |
| Fast Communication | Up to 500 kbps speed |
| Real-Time Control | Cyclic I/O exchange |
| Flexible Integration | Works with many field devices |
| Industrial Reliability | Stable in harsh environments |
| Easy Configuration | Software-based setup |
| Wide Compatibility | Supports multiple SLC CPUs |
Recommended Models from Same Series or Related Series
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-SDN | DeviceNet Scanner | Network master control | Distributed automation | 14 × 5 × 15 cm | 0.45 kg |
| 1747-SDN/A | DeviceNet Scanner | Enhanced revision module | Industrial networks | 14 × 5 × 15 cm | 0.45 kg |
| 1747-SCNR/A | ControlNet Scanner | ControlNet communication | Real-time systems | 12.7 × 5 × 15 cm | 0.42 kg |
| 1747-ASB | Remote I/O Adapter | I/O expansion control | Rack systems | 12 × 5 × 14 cm | 0.40 kg |
| 1747-BSN | Backup Scanner | Redundant system support | High availability control | 12 × 6 × 15 cm | 0.50 kg |
Recommended Popular Models from Same Brand
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-L541 | CPU Module | SLC 5/04 processor | Industrial automation | 25 × 17 × 6 cm | 0.45 kg |
| 1747-L542 | CPU Module | High-performance CPU | Distributed control systems | 25 × 16.6 × 5.9 cm | 0.40 kg |
| 1747-L551 | CPU Module | Ethernet-enabled CPU | Network automation | 25 × 16.5 × 5.6 cm | 0.42 kg |
| 1756-EN2TR | Ethernet Module | Dual Ethernet/IP ports | Industrial networking | 14 × 11 × 8 cm | 0.45 kg |
| 1769-L33ER | Compact PLC | Built-in Ethernet/IP | Machine automation | 18 × 12 × 9 cm | 0.92 kg |
System Role in Industrial Automation
The 1747-SDN serves as a DeviceNet master scanner in SLC 500 PLC systems.
It manages communication between the PLC processor and multiple field devices across a DeviceNet network.
It enables decentralized control, reducing wiring complexity and improving system scalability.
Installation and Maintenance Characteristics
The module is installed into the SLC rack system in a standard I/O slot.
Configuration is performed using network configuration tools and PLC software.
Maintenance is typically limited to troubleshooting communication status or replacing the module in case of failure.
LED indicators simplify diagnostics and network monitoring.
Industrial Reliability
The 1747-SDN is widely used in industrial automation due to its stable network performance and strong compatibility with DeviceNet devices.
It remains a key component in legacy distributed control systems still operating in manufacturing facilities worldwide.
Its robustness and deterministic communication capability make it suitable for continuous industrial operation.
Summary
The Allen Bradley 1747-SDN is a DeviceNet scanner module designed for SLC 500 PLC systems.
It provides reliable master control of DeviceNet networks, enabling real-time communication with multiple field devices.
Its scalability, industrial durability, and deterministic performance make it an essential component in distributed industrial automation systems.