Allen-Bradley 1747-SDN SLC 500 DeviceNet Scanner Module

Product Description

The 1747-SDN from Allen-Bradley is a communication scanner module designed for the SLC 500 controller family, enabling integration with DeviceNet field devices. It acts as a network master, managing data exchange between the PLC and connected DeviceNet adapters across distributed I/O architectures.

This module is compatible with SLC 5/02 processors and later versions, supporting both slave and master-side communication functions. It handles multiple I/O messaging types including polling, strobe, cyclic, change-of-state, and pass-through operations, allowing flexible network configuration.

The 1747-SDN is a single-slot chassis module and can be installed in standard SLC 500 racks. It provides reliable industrial communication performance with built-in diagnostics and status indicators for network and module health.

Key Technical Specifications

Communication Capabilities

• Network Protocol: DeviceNet

• Communication Port: 1 × DeviceNet interface

• Data Transfer Rate: 125 kbps

• Supported Messaging Modes: Poll, Strobe, Cyclic, Change-of-State, Pass-through

• Compatible Controllers: SLC 5/02, 5/03, 5/04, 5/05

Electrical Characteristics

• Backplane Power Consumption:

• 500 mA @ 5V DC

• approx. 90 mA @ 24V DC

System Capacity

• Maximum Chassis Slots Supported: up to 30

• Memory Type: Flash backup memory

Mechanical & Installation

• Module Width: Single-slot design

• Mounting Options: DIN rail or panel mount

• Connector Reference: 1787-PLUG10R (DeviceNet linear plug)

• Weight: 0.4 lbs

Environmental Ratings

• Operating Temperature: 0°C to +55°C

• Storage Temperature: -40°C to +85°C

• Vibration Resistance: 5 g (10–500 Hz, IEC 68-2-6)

• Shock Resistance: 30 g peak (11 ms pulse)

Diagnostics & Indicators

• Module Status LED: red/green

• Network Status LED: red/green

• I/O Status LED: red/green

Functional Features

• Acts as DeviceNet scanner (network master)

• Supports full I/O scanning and pass-through communication

• Real-time diagnostics for network health monitoring

• Designed for integration with distributed I/O systems

Applications

• Machine-level DeviceNet communication networks

• Distributed I/O systems in manufacturing lines

• Packaging and material handling systems

• Multi-node PLC communication architectures

FAQ

Q: Can this module function in both master and slave modes?
A: It primarily operates as a DeviceNet scanner (master), but supports pass-through communication for configuration and diagnostics.

Q: Which controllers are compatible with this module?
A: It is compatible with SLC 5/02 and later SLC 500 processors.

Q: Does it support multiple communication methods?
A: Yes, it supports polling, strobe, cyclic, change-of-state, and pass-through messaging.