Product Overview

The Allen-Bradley 1747-SDN is a DeviceNet scanner module. It belongs to the SLC 500 series of programmable controllers. This module communicates with DeviceNet adapter modules connected to the DeviceNet network.

The module is compatible for use with SLC 5/02 controllers or later. Furthermore, it is a single-slot module that supports operation in slave mode. Therefore, it serves as the master on a DeviceNet network.

General Specifications

The 1747-SDN offers robust DeviceNet scanning capabilities for SLC systems.

• Manufacturer: Rockwell Automation.

• Brand: Allen-Bradley.

• Series: SLC 500.

• Part Number/Catalog No.: 1747-SDN.

• Module Type: DeviceNet Scanner Module.

• Module Width: Single Slot.

• Mounting: DIN Rail or Panel Mounting.

• Weight: 1 pound (0.45 kilograms).

• UPC: 10612598164858.

Compatible Processors

The 1747-SDN works with a range of SLC processors.

• Compatible Controllers: SLC 5/02 or later.

• Full Compatible Processors: SLC 5/02, 5/03, 5/04, 5/05.

• Pass-Through Compatible Processors: SLC 5/03, SLC 5/04, and SLC 5/05.

Therefore, the module integrates into most SLC 500 systems.

DeviceNet Communication

The 1747-SDN provides comprehensive DeviceNet master functionality.

• Communication Port: One (1) DeviceNet.

• Data Transfer Speed: 125 Kbps (fixed for this module).

• Number of Nodes Supported: Up to 63 nodes.

• Linear Plug: 1787-PLUG10R.

I/O Modes Supported:

• Polled I/O.

• Strobe I/O.

• Change-of-State I/O.

• Cyclic I/O.

Pass-Through Configuration:

• Supported (acts as a bridge to a separate DeviceNet network).

• Designed to replace 1770-KFD, 1784-PCD, 1784-PCID, or 1784-PCIDS DeviceNet connections.

Communication Features

The 1747-SDN serves as an interface between the SLC processor and DeviceNet devices.

• Communication Methods: M1/M0 file transfers and discrete I/O.

• Data Exchanged: Configuration data, device I/O data, and status information.

• Communication Protocols: Ethernet and RS-232 (processor communication).

• Backup Memory: Flash.

Backplane Power Consumption

The 1747-SDN draws power from both backplane voltages.

• Backplane Current (5 Volts): 500 milliamps.

• Backplane Current (24 Volts): 90 milliamps.

Isolation

The 1747-SDN provides electrical isolation for safety and noise immunity.

• Isolation Type: Basic Insulation Type.

• Isolation Rating: 500V AC for 60 seconds (DeviceNet-to-backplane).

• Circuit Isolation: 30 Volts.

Status Indicators and Display

The 1747-SDN provides clear visual status indication.

• LED Indicators:

  • Mod/Net Status: Red/Green (module operation and DeviceNet communication link).

  • I/O Status: Red/Green.

• LCD Display: Provides module address and error indication.

DeviceNet Terminal:

• Located behind the access door.

• 10-pin linear plug inserted into the DeviceNet port.

Environmental Specifications

The 1747-SDN withstands typical industrial conditions.

Temperature Ranges:

• Operating Temperature (IEC tested): 0 to 60°C (32 to 140°F).

• Operating Temperature (spec): 0 to 55°C (32 to 131°F).

• Storage Temperature: -40 to 85°C (-40 to 185°F).

Humidity:

• Operating: 5 to 95% (non-condensing).

Vibration:

• Tested 5g at 10-500Hz per IEC 68-2-6.

• Operational withstand: 2G at 10-500Hz.

Shock:

• Operating Shock: 30g peak acceleration, 11(+1)ms pulse width.

Certifications and Compliance

The 1747-SDN meets international standards.

• EMC Rating: CISPR 11, Group 1, Class A.

• Temperature Code: T5 (North America).

• Enclosure: Open-style.

• Certifications: c-UL-us and CE-certified.

Key Features

The 1747-SDN offers several advantages for DeviceNet networking.

DeviceNet Scanner Function:
Acts as the master on a DeviceNet network. Therefore, it controls up to 63 DeviceNet slave devices.

Multiple I/O Modes:
Supports polled, strobe, change-of-state, and cyclic I/O. Consequently, it optimizes network bandwidth for different device types.

Pass-Through Configuration:
Acts as a bridge, replacing external 1770-KFD or 1784-PCD interfaces. Hence, programming and configuration can be done through the SLC processor.

LCD Display:
Provides module address and error indication. For this reason, troubleshooting is faster without external tools.

Wide Processor Compatibility:
Works with SLC 5/02, 5/03, 5/04, and 5/05 processors. Thus, it fits into existing SLC systems.

Flash Backup Memory:
Retains configuration without battery. Therefore, module replacement is simplified.

Open-Style Enclosure:
Mounts on DIN rail or panel. Consequently, installation is flexible.

Rugged Environmental Ratings:
Operates from 0 to 60°C with 30g shock withstand. Hence, it suits demanding industrial environments.

Typical Applications

The 1747-SDN suits various DeviceNet network applications.

• Controlling DeviceNet drives, starters, and motor controls.

• Interfacing DeviceNet I/O blocks and sensors.

• Connecting DeviceNet valve manifolds and pneumatic systems.

• Pass-through configuration for DeviceNet device programming.

• Replacing 1770-KFD or 1784-PCD interfaces.

Installation Guidelines

Install the 1747-SDN in a single slot of an SLC 500 chassis. First, ensure the chassis power supply can provide the required 500 mA at 5V and 90 mA at 24V. Then, insert the module into an available slot.

Connect the DeviceNet network to the 10-pin linear plug behind the access door. Use the 1787-PLUG10R linear plug for connection. Set the module address using the LCD display and buttons.

Configure the module for polled, strobe, change-of-state, or cyclic I/O as required. For pass-through configuration, use a compatible SLC 5/03, 5/04, or 5/05 processor. The module operates at 125 Kbps only.

What is in the Box

Please inspect all items upon delivery.

• Allen-Bradley 1747-SDN DeviceNet scanner module.

• 10-pin linear plug (1787-PLUG10R).

• Installation instruction manual.

Frequently Asked Questions (FAQ)

1. How many DeviceNet nodes can the 1747-SDN support?

The 1747-SDN supports up to 63 DeviceNet nodes. The data transfer speed is 125 Kbps.

2. What I/O modes does this scanner support?

The 1747-SDN supports polled, strobe, change-of-state, and cyclic I/O configurations. Therefore, it adapts to different device communication requirements.

3. Which SLC processors are compatible with this module?

The 1747-SDN is compatible with SLC 5/02, 5/03, 5/04, and 5/05 processors. For pass-through configuration, SLC 5/03, 5/04, or 5/05 is required.

4. What is the backplane current draw of this module?

The 1747-SDN draws 500 mA from the 5V backplane and 90 mA from the 24V backplane. Consequently, verify your power supply capacity.

5. Does this module support DeviceNet pass-through configuration?

Yes. The 1747-SDN supports pass-through configuration. It acts as a bridge and can replace external 1770-KFD or 1784-PCD DeviceNet connections.