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- Allen Bradley
- 1769-SDN
- CompactLogix I/O Module
- USA
- 118 mm × 35 mm × 87 mm
- 0.28kg
- Xiamen, China
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Technical Report: DeviceNet Scanner Module 1769-SDN
1. Product Overview
The 1769-SDN is a Compact I/O DeviceNet Scanner communication module used in industrial PLC systems to enable network communication between a controller and DeviceNet field devices.
It acts as a master scanner on the DeviceNet network, managing data exchange between the PLC backplane and distributed I/O devices, drives, sensors, and actuators.
This module is commonly used in automation systems requiring deterministic fieldbus communication with multiple slave nodes.
2. Brand Information
- Brand: Industrial Automation Control Brand
- Product Category: PLC Communication / DeviceNet Scanner Module
- Technology Field: Industrial Networking / Fieldbus Communication
- Manufacturing Origin: United States (varies by production batch)
3. Product Series
- Series Name: Compact I/O Series
- System Architecture: Modular PLC expansion platform
- Compatible Controllers: CompactLogix / MicroLogix systems
- Installation Type: DIN rail or panel mount system
The module belongs to a modular PLC communication architecture designed for distributed industrial control systems.
4. Product Introduction
The 1769-SDN provides a dedicated DeviceNet communication interface with the following functions:
- Acts as a master scanner on DeviceNet network
- Controls up to 64 DeviceNet nodes
- Exchanges input/output data between PLC and field devices
- Supports cyclic and explicit messaging
It is widely used in systems where sensors, drives, and actuators are distributed across a machine or production line.
5. Technical Parameters
5.1 Communication Performance
| Parameter | Value |
|---|---|
| Communication Protocol | DeviceNet |
| Number of Nodes | Up to 64 nodes |
| Data Transfer Type | Cyclic I/O + Explicit messaging |
| Communication Rates | 125 kbps / 250 kbps / 500 kbps |
| Maximum Cable Length | 500 m @ 125 kbps |
| Network Topology | Linear trunk/drop |
5.2 Electrical Performance
| Parameter | Value |
|---|---|
| Backplane Current Draw | ~440 mA @ 5.1V DC |
| DeviceNet Current Draw | ~110 mA @ 24V DC |
| Power Dissipation | ~4.7 W |
| Isolation Voltage | 30V continuous (DeviceNet to backplane) |
| Protection Type | Basic industrial insulation |
5.3 Environmental & Durability
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5%–95% non-condensing |
| Vibration Resistance | 2G @ 10–500 Hz |
| Shock Resistance | 30G operating |
5.4 Physical Dimensions & Weight
| Parameter | Value |
|---|---|
| Height | 118 mm |
| Width | 50 mm |
| Depth | 87 mm |
| Mounting Type | DIN rail / panel mount |
| Weight | 0.28 kg (approx.) |
| Form Factor | Single-slot communication module |
5.5 Interface & Hardware
| Parameter | Value |
|---|---|
| Communication Port | 1 × DeviceNet (5-pin connector) |
| LED Indicators | Status, network, module status |
| Configuration | Software-based via PLC system |
| Cable Type | Shielded twisted pair |
6. Product Applications
The 1769-SDN is used in distributed automation systems requiring DeviceNet fieldbus communication.
Typical application areas:
- Industrial production lines
- Packaging machines
- Material handling systems
- Conveyor automation systems
- Motor control systems
- Robotic manufacturing cells
- Process automation systems
- Multi-node sensor networks
Functional role:
- Fieldbus communication gateway
- Device-level network controller
- Distributed I/O integration
- Real-time control data exchange
7. Product Advantages
7.1 Stable Fieldbus Communication
Provides deterministic communication for industrial DeviceNet networks.
7.2 High Node Capacity
Supports up to 64 devices on a single network segment.
7.3 Flexible Speed Options
Selectable baud rates (125 / 250 / 500 kbps) for different cable lengths.
7.4 Easy PLC Integration
Direct backplane mounting simplifies system architecture.
7.5 Reliable Industrial Design
Built for vibration, shock, and electrical noise environments.
7.6 Scalable Network Architecture
Supports expansion of distributed control systems without redesigning PLC hardware.
8. Recommended Models (Same Series / Related Modules)
8.1 Same Series / Related Modules
| Model | Description | Key Parameters |
|---|---|---|
| 1769-AENTR | Ethernet/IP network adapter module | Dual-port Ethernet communication |
| 1769-SM1 | Serial communication module | RS-232/RS-485 support |
| 1769-IF8 | Analog input module | 8-channel process signal input |
| 1769-OF8C | Analog output module | 8-channel current output |
| 1769-OB16 | Digital output module | 16-channel transistor output |
9. Recommended Models (Same Brand – Popular Modules)
| Model | Type | Key Parameters |
|---|---|---|
| 1769-L24ER | PLC Controller | Integrated CPU, Ethernet communication |
| 1769-L33ER | PLC Controller | High-performance processing |
| 1769-IQ16 | Digital Input Module | 16-channel discrete input |
| 1769-OB32 | Digital Output Module | 32-channel transistor output |
| 1769-OW16 | Relay Output Module | 16-channel AC/DC switching |
10. Summary
The 1769-SDN is a DeviceNet scanner module designed for Compact I/O PLC systems, enabling stable and deterministic fieldbus communication with up to 64 networked devices.
Its robust communication capability, wide network support, and industrial reliability make it a key component in distributed automation architectures.