Allen-Bradley 1747-SDN Module

The Allen‑Bradley 1747‑SDN is a single‑slot DeviceNet scanner module for SLC 500 controllers, enabling seamless integration between SLC 500 processors and DeviceNet networks to connect sensors, actuators, drives, and HMIs. It supports up to 63 nodes, 125/250/500 Kbps baud rates, and multiple I/O messaging modes (Polled, Strobe, Change‑of‑State, Cyclic I/O), with pass‑through bridging for multi‑network setups. Discontinued by Rockwell, it remains a reliable choice for legacy SLC 500 system upgrades, ensuring backward compatibility and robust industrial communication in manufacturing, material handling, and process control.

1. Single‑slot module for SLC 500 chassis, compatible with SLC 5/02, 5/03, 5/04, 5/05 processors
2. Supports 125/250/500 Kbps DeviceNet baud rates and up to 63 nodes for scalable network design
3. Multiple messaging modes (Polled, Strobe, COS, Cyclic I/O) and pass‑through bridging for multi‑DeviceNet network connections
4. 150 words of input + 150 words of output data capacity for high‑volume I/O exchange
5. Front‑panel LEDs (Module/Network) and LCD for real‑time status monitoring and error diagnosis
6. 30V circuit isolation (500V AC tested) between DeviceNet and backplane for enhanced electrical protection

Application Scenarios:

• Manufacturing Automation: Connects SLC 500 controllers to DeviceNet‑enabled sensors, actuators, and drives for assembly line control and data acquisition.
• Material Handling: Integrates barcode scanners, motor starters, and conveyor systems for seamless warehouse and logistics automation.
• Process Control: Links SLC 500 to process instruments, valves, and pumps in chemical, food & beverage, and water treatment applications.
• Legacy System Upgrades: Extends communication capabilities of existing SLC 500 systems without full hardware replacement.