1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
    1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
    1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel
1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel

1771-SDN | Allen-Bradley PLC-5 DeviceNet Scanner Module, 2-Channel

Part #: 1771-SDN Manufactured by: Allen-Bradley
Regular price
$389.00
Sale price
$389.00
Regular price
5 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
Allen Bradley 1771-SDN PLC 5 Communication Module, DeviceNet Communication Port Protocol, Scan I/O and Process Messages Op...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 1771-SDN
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro LLC BBB Business Review
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1771-SDN

Description / Specifications

Description 

The Allen-Bradley 1771-SDN is an Allen-Bradley DeviceNet Scanner module. This module enables a controller to communicate a Devicenet network via the embedded Two (2) DeviceNet ports. This module supports communication rate up to 125 Kbits/s. It is compatible with Allen-Bradley chassis such as 1771-A1B through -A4B or later I/O chassis.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-SDN
Baud Rate 125 Kbits/s
Enclosure Type Rating None (open style)
Operating Temperature 0-60 Deg. Celsius (32–140 Deg. Fahrenheit)
Storage Temperature –40 to 85 Deg. C (–40 to 185 Deg. F)
Operating Vibration 2g @10–500Hz
Operating shock 30 g
DeviceNet power consumption 24Vdc, 50mA per channel Class 2
Backplane Current 5Vdc, 0.8A
Slot Width 1 Slot
Module Type DeviceNet scanner Module
Module Location 1771-A1B through -A4B or later I/O chassis
Description PLC DeviceNet Scanner Module
Communication Port Protocol DeviceNet
Operation Scan I/O and Process Messages
Max Continuous Current Per Module 2 Amperes
Max Current Per Module 8 Amperes
Typical AC Signal Delay (On) 11 (+/- 6) ms
Typical DC Signal Delay (On) 3 (+/- 2) ms
Typical AC Signal Delay (Off) 29 (+/- 8) ms
Typical DC Signal Delay (Off) 30 (+/- 7) ms
Wiring Arm 1771-WN
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Series B and C

  

 

Information About 1771-SDN

The 1771-SDN is an Allen-Bradley module that is used with the 1771 Product family. This module is a DeviceNet module used enable DeviceNet communication for implementing remote I/O architecture, messaging and perform data exchange between visualization systems.

This module is Two (2) DevideNet ports with individual DeviceNet channel indicators. It is available in Three (3) module series, specifically, series A, B and C. Each module has backwards compatibility wherein a Series B module may be used as direct replacement of Series A similarly, Series C is fully compatible with Series B and A module. Specific with Series C module, when using this module as a replacement to any of the previous module series, the position of switch 5 must be changed to the OFF or 0 position via the configuration switch provided which is installed at the module’s circuit board. The module is configured using RSNetWorx.

The 1771-SDN supports Change of State (COS) wherein the module can be set to monitor data change of a parameter, which may be used in fast applications. Aside from COS, Cyclic I/O and Pass through feature is supported by this module.

The module is provided with sets of switches for setting the module’s channel and chassis address settings. With DeviceNet, up to 63 nodes which are configurable via the node address switches.

The 1771-SDN Series B and C have typical front panel designs including module status indicators, Reset button, Node address status display, DeviceNet port 1, DeviceNet port 2, Channel status 1 and Channel Status 2. DeviceNet series A has lesser front panel components.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1771-SDN
Question: What is the Allen-Bradley 1771-SDN?
Date Update:27/05/2025
Answer:

The 1771-SDN is a DeviceNet scanner module used in Allen-Bradley PLC-5 systems, enabling those controllers to communicate over a DeviceNet network. It scans I/O devices and processes messaging between the PLC and connected field devices. The module fits into a single slot of the 1771 chassis and supports up to 63 DeviceNet nodes. It is essential for integrating decentralized DeviceNet drives or sensors into PLC-5 architectures.

Question: What’s the difference between Series A, B, and C modules?
Date Update:27/05/2025
Answer:

Each newer series offers minor hardware updates and improved diagnostics. Series C is fully backward-compatible with A and B but requires a switch setting change (switch 5 OFF) when replacing older modules. It also has an improved front panel layout with more indicators and a reset button.

Question: How is the module configured?
Date Update:27/05/2025
Answer:

Configuration is done via RSNetWorx for DeviceNet. You can assign node addresses, baud rates, and scan parameters through this software. The front panel of the module includes DIP switches and a node address display for initial setup. Series C modules may require switch 5 to be set to OFF when replacing older series.

Question: What is the maximum baud rate and network size supported?
Date Update:27/05/2025
Answer:

The module supports DeviceNet communication at up to 125 Kbps, suitable for medium-length networks. It supports up to 63 node addresses, configurable through DIP switches or RSNetWorx software. For larger or faster networks, higher-speed scanners like ControlLogix 1756-DNB may be required.

Question: Is the Allen-Bradley 1771-SDN still in production?
Date Update:27/05/2025
Answer:

No, the 1771-SDN is discontinued, and was replaced under engineering replacement guidance by Rockwell Automation. Users are encouraged to migrate to ControlLogix (1756-DNB) or CompactLogix-based DeviceNet solutions. For diagnostics, replacement, or transition assistance, consult lifecycle status tools or Rockwell migration documents.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1771-SDN is an Allen-Bradley DeviceNet Scanner module. This module enables a controller to communicate a Devicenet network via the embedded Two (2) DeviceNet ports. This module supports communication rate up to 125 Kbits/s. It is compatible with Allen-Bradley chassis such as 1771-A1B through -A4B or later I/O chassis.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-SDN
Baud Rate 125 Kbits/s
Enclosure Type Rating None (open style)
Operating Temperature 0-60 Deg. Celsius (32–140 Deg. Fahrenheit)
Storage Temperature –40 to 85 Deg. C (–40 to 185 Deg. F)
Operating Vibration 2g @10–500Hz
Operating shock 30 g
DeviceNet power consumption 24Vdc, 50mA per channel Class 2
Backplane Current 5Vdc, 0.8A
Slot Width 1 Slot
Module Type DeviceNet scanner Module
Module Location 1771-A1B through -A4B or later I/O chassis
Description PLC DeviceNet Scanner Module
Communication Port Protocol DeviceNet
Operation Scan I/O and Process Messages
Max Continuous Current Per Module 2 Amperes
Max Current Per Module 8 Amperes
Typical AC Signal Delay (On) 11 (+/- 6) ms
Typical DC Signal Delay (On) 3 (+/- 2) ms
Typical AC Signal Delay (Off) 29 (+/- 8) ms
Typical DC Signal Delay (Off) 30 (+/- 7) ms
Wiring Arm 1771-WN
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Series B and C

  

 

Information About 1771-SDN

The 1771-SDN is an Allen-Bradley module that is used with the 1771 Product family. This module is a DeviceNet module used enable DeviceNet communication for implementing remote I/O architecture, messaging and perform data exchange between visualization systems.

This module is Two (2) DevideNet ports with individual DeviceNet channel indicators. It is available in Three (3) module series, specifically, series A, B and C. Each module has backwards compatibility wherein a Series B module may be used as direct replacement of Series A similarly, Series C is fully compatible with Series B and A module. Specific with Series C module, when using this module as a replacement to any of the previous module series, the position of switch 5 must be changed to the OFF or 0 position via the configuration switch provided which is installed at the module’s circuit board. The module is configured using RSNetWorx.

The 1771-SDN supports Change of State (COS) wherein the module can be set to monitor data change of a parameter, which may be used in fast applications. Aside from COS, Cyclic I/O and Pass through feature is supported by this module.

The module is provided with sets of switches for setting the module’s channel and chassis address settings. With DeviceNet, up to 63 nodes which are configurable via the node address switches.

The 1771-SDN Series B and C have typical front panel designs including module status indicators, Reset button, Node address status display, DeviceNet port 1, DeviceNet port 2, Channel status 1 and Channel Status 2. DeviceNet series A has lesser front panel components.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Check Out These Related Products