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- Allen Bradley
- 1747-ASB/A
- ControlNet Adapter Module
- USA
- 14.5 × 13.1 × 3.5 cm
- 0.168kg
- Xiamen, China
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Allen Bradley 1747-ASB/A Detailed Product Introduction and Technical Specifications
Product Overview
The Allen Bradley 1747-ASB/A is a Universal Remote I/O Adapter Module developed for the SLC 500 programmable controller platform. This module is specifically designed to establish communication between distributed remote I/O chassis and centralized PLC control systems through a Remote I/O (RIO) communication network.
The 1747-ASB/A is widely recognized in industrial automation systems for its stable communication performance, flexible distributed architecture capability, and long-term operational reliability.
This module enables remote field devices and distributed I/O racks to exchange real-time data with the central processor while reducing excessive field wiring and simplifying system design.
It is commonly used in manufacturing plants, automotive assembly systems, packaging equipment, process industries, conveyor systems, mining operations, and large-scale factory automation projects where distributed control architecture is required.
The product supports multiple communication rates and offers strong resistance to industrial electrical interference, making it suitable for harsh industrial environments.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-ASB/A |
| Product Category | Universal Remote I/O Adapter Module |
| Product Family | PLC Communication Module |
| Series | SLC 500 Series |
| Communication Type | Remote I/O (RIO) |
| Installation Method | Chassis Slot Installation |
| Main Function | Remote Rack Communication |
| Module Classification | Distributed I/O Adapter |
Product Series Introduction
SLC 500 Series
The SLC 500 series is a modular PLC automation platform widely used in industrial control systems for medium-scale automation applications.
The platform was designed to provide flexible I/O expansion, reliable processor communication, and stable industrial control capability.
The SLC 500 series supports a broad range of digital I/O modules, analog modules, communication interfaces, and networking adapters.
The 1747-ASB/A module belongs to the communication adapter family within the SLC 500 platform and is mainly used for Remote I/O communication between distributed field racks and centralized processors.
This series became highly popular in industries requiring long-distance distributed automation control and dependable communication performance.
Detailed Technical Specifications of 1747-ASB/A
Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1747-ASB/A |
| Module Type | Universal Remote I/O Adapter Module |
| Series | SLC 500 |
| Communication Protocol | Remote I/O (RIO) |
| Communication Rates | 57.6 kbps / 115.2 kbps / 230.4 kbps |
| Backplane Current Consumption | 375 mA at 5V DC |
| Slot Width | Single Slot |
| Supported Chassis | 1746 I/O Chassis |
| Maximum Supported Slots | 30 Slots |
| Supported Nodes | 16 Standard / 32 Extended |
| Connector Type | 6-Pin Phoenix Connector |
| Cable Type | Belden 9463 |
| Communication Method | Bidirectional Data Exchange |
| Status Indicators | COMM LED / FAULT LED |
| Diagnostic Display | 3-Digit Display |
| DIP Switch Configuration | Supported |
| Operating Voltage | 5V DC |
| Isolation Method | Optical Isolation |
| Noise Immunity | NEMA ICS 2-230 Standard |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5% to 95% Non-Condensing |
| Certifications | UL / CSA / CE |
| Installation Type | Chassis Mounted |
| Dimensions | 14.5 × 13.1 × 3.5 cm |
| Weight (kg) | 0.168 kg |
Product Features
1. Stable Remote I/O Communication
The 1747-ASB/A provides highly reliable communication between remote I/O racks and centralized SLC 500 processors.
This allows industrial systems to distribute field devices across large production facilities while maintaining efficient centralized control.
The module supports stable data transmission even in environments with significant electrical interference.
2. Flexible Communication Speed Selection
The module supports three selectable communication rates including 57.6 kbps, 115.2 kbps, and 230.4 kbps.
This flexibility allows engineers to optimize communication performance according to system size and network requirements.
The selectable communication speed also improves compatibility with various industrial automation architectures.
3. Distributed System Architecture Support
The 1747-ASB/A allows remote I/O chassis to be installed far from the main controller.
This reduces field wiring complexity and lowers installation costs in large industrial facilities.
The distributed architecture also improves maintenance accessibility and system scalability.
4. Strong Industrial Noise Resistance
Industrial environments often contain severe electromagnetic interference generated by motors, inverters, welding machines, and high-voltage equipment.
The module incorporates industrial-grade isolation and filtering technology to maintain stable communication under these conditions.
This significantly improves operational reliability and minimizes communication failures.
5. Simplified Maintenance and Diagnostics
The module contains front-panel diagnostic indicators including COMM and FAULT LEDs along with a diagnostic display.
These features help maintenance personnel quickly identify communication errors, addressing conflicts, and system faults.
This reduces troubleshooting time and improves maintenance efficiency.
Product Applications
Factory Automation
The 1747-ASB/A is widely used in automated production lines, robotic systems, conveyor control systems, and machine automation equipment.
Its distributed I/O capability allows efficient communication between centralized PLC systems and remote devices.
Automotive Manufacturing
Automotive assembly facilities require synchronized communication across multiple production stations.
The module supports reliable distributed control for welding robots, assembly conveyors, paint systems, and inspection equipment.
Food and Beverage Industry
Food processing facilities demand stable and uninterrupted communication systems for continuous production operations.
The 1747-ASB/A supports distributed communication for mixers, packaging machines, filling systems, and conveyor equipment.
Oil and Gas Industry
In process industries, remote field devices are often located far from the main control room.
The module enables long-distance communication between field instrumentation and centralized automation systems.
Material Handling and Warehousing
Large warehouses and logistics facilities use distributed automation systems for conveyor sorting and automated storage equipment.
The module provides reliable communication between remote field devices and centralized controllers.
Product Advantages
| Advantage | Description |
|---|---|
| Reliable Communication | Stable Remote I/O network transmission |
| Flexible System Expansion | Supports distributed remote chassis |
| Strong Noise Immunity | Industrial-grade interference resistance |
| Easy Installation | Single-slot compact design |
| Simplified Maintenance | Diagnostic LEDs and status display |
| Long Service Life | Industrial-grade electronic construction |
| Wide Compatibility | Compatible with SLC 500 systems |
| Reduced Wiring Costs | Supports remote distributed architecture |
Recommended Models from the Same Series or Related Series
Related SLC 500 Communication Modules
| Model | Product Type | Main Function | Communication Type | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-SN | Scanner Module | Remote I/O Scanning | Remote I/O | 24 × 13 × 7 cm | 1.80 kg |
| 1747-ACN15 | ControlNet Adapter | Distributed Network Communication | ControlNet | 26 × 14 × 8 cm | 2.20 kg |
| 1747-ACNR15 | Redundant Adapter | Redundant ControlNet Communication | ControlNet | 26.3 × 13.8 × 8.8 cm | 2.35 kg |
| 1747-KE | Communication Interface Module | DH-485 Communication | DH-485 | 22 × 12 × 6 cm | 1.10 kg |
| 1747-DCM | Direct Communication Module | PLC Peer Communication | DH485 / RS232 | 25 × 14 × 7 cm | 1.90 kg |
Recommended Popular Models from the Same Brand
Popular Industrial Automation Products
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-EN2TR | Ethernet Communication Module | Dual Ethernet/IP Ports | ControlLogix Systems | 14 × 11 × 8 cm | 0.45 kg |
| 1769-L33ER | Compact PLC Controller | Integrated Ethernet/IP | Machine Automation | 18 × 12 × 9 cm | 0.92 kg |
| 1756-IB16 | Digital Input Module | 16-Point Digital Input | Factory Automation | 15 × 11 × 6 cm | 0.30 kg |
| 1769-IF8 | Analog Input Module | 8-Channel Analog Input | Process Control | 12 × 9 × 5 cm | 0.35 kg |
| 1783-US8T | Industrial Ethernet Switch | Managed Industrial Networking | Industrial Ethernet | 16 × 12 × 5 cm | 0.80 kg |
Communication and Performance Characteristics
The 1747-ASB/A was designed to provide dependable communication for distributed industrial control systems requiring stable Remote I/O networking.
The module supports multiple addressing methods and communication configurations, allowing it to adapt to different automation system structures.
Its support for extended nodes and multiple chassis slots makes it suitable for large-scale distributed automation projects.
The communication architecture reduces wiring complexity and simplifies large plant installations.
Its industrial-grade design ensures long-term operational reliability under demanding industrial conditions.
Installation and Maintenance Characteristics
The module is installed directly into Slot 0 of a compatible 1746 remote chassis.
Its compact single-slot design simplifies installation while minimizing occupied chassis space.
The front-panel status indicators provide clear visual feedback regarding communication status and module operation.
Maintenance engineers can easily identify system faults using the onboard diagnostic display and LED indicators.
Routine maintenance requirements are minimal due to the module’s durable industrial construction.
Industrial Reliability
The 1747-ASB/A was engineered for continuous industrial operation in environments containing electrical noise, vibration, temperature variation, and long operating hours.
The module includes industrial-grade isolation and filtering features that improve communication stability and reduce system interruptions.
Its long operational lifespan and stable communication capability made it one of the widely adopted Remote I/O adapter modules within legacy SLC 500 systems.
Even today, many industrial facilities continue to operate systems using this module due to its proven reliability and durable design.