Allen-Bradley 1769-SDN Communication Module

The Allen-Bradley 1769-SDN is a DeviceNet Scanner Communication Module designed for use with the CompactLogix and MicroLogix 1500 controllers. This module facilitates seamless communication between the CompactLogix system and other DeviceNet-enabled devices. By utilizing its DeviceNet communication port, the 1769-SDN supports multiple communication speeds and can connect up to 63 devices, including drives, sensors, and actuators.

Key Features:

Communication Port: One (1) DeviceNet port
Compatible Systems: CompactLogix and MicroLogix 1500
Data Transfer Speeds: 125k bit/s, 250k bit/s, and 500k bit/s
Number of Nodes: Supports up to 63 DeviceNet nodes
Mounting: Compatible with DIN rail and panel mounting
Indicators: Module status, network status, I/O status, and diagnostic status (Red/Green LEDs)
Locking Mechanism: Snap-on mounting for secure installation

Technical Specifications

Specification	Value
Part Number	1769-SDN
Manufacturer	Allen-Bradley
Product Type	DeviceNet Communication Module
Product Line	CompactLogix
Weight	0.38 lbs (0.17 kg)
Module Type	DeviceNet Scanner
Communication Port	One (1) DeviceNet
Series	A and B
Data Transfer Speed	125k bit/s, 250k bit/s, 500k bit/s
Number of Nodes	63
Operating Temperature	32°F to 140°F (0°C to 60°C)
Storage Temperature	-40°F to +185°F (-40°C to +85°C)
Power Supply Distance Rating	Series A: 4, Series B: 5
Wire Size	22 to 14 AWG (solid), 22 to 16 AWG (stranded)
Heat Dissipation	440 mA at 5V DC / 2.2 Watts
Agency Certifications	UL, CE, DeviceNet Foundation
Backplane Current	Series A: 450mA at 5V DC (2.25W), Series B: 500mA at 5V DC (2.5W)
Humidity	5% to 95% non-condensing
UNSPSC	32151705

Performance and Installation

The 1769-SDN module supports flexible communication speeds of 125k, 250k, and 500k bit/s, allowing it to meet the specific needs of various DeviceNet networks. It is designed for efficient communication with up to 63 devices, such as adjustable frequency drives, servo drives, and other industrial equipment.

Installation is straightforward, with DIN rail or panel mounting options. The snap-on connection provides secure mounting, ensuring stable operation. The DeviceNet scanner connects seamlessly to the network, automatically searching for and communicating with DeviceNet adapters to exchange real-time data. The module supports both cyclic I/O and event-driven messaging, making it suitable for dynamic industrial applications.

Communication and Data Handling

The 1769-SDN can send and receive a variety of data types, including strobe, poll, change-of-state, and cyclic I/O messages, ensuring that devices in the network stay synchronized. Once the data is received, the module organizes it and forwards it to the CompactLogix controller for processing. The system enables efficient communication with devices such as PowerFlex 4-Class drives, and other equipment through DeviceNet networks.

Certifications and Compliance

The 1769-SDN is UL and CE certified, ensuring it meets stringent safety and quality standards. It also carries the DeviceNet Foundation certification, guaranteeing compatibility with other DeviceNet devices.