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- 1747-DCM/A
- ControlNet Adapter Module
- USA
- 15.2 × 5.1 × 15.2 cm
- 0.2kg
- Xiamen, China
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Allen Bradley 1747-DCM/A Detailed Product Introduction and Technical Specifications
Product Overview
The Allen Bradley 1747-DCM/A is a Direct Communication Module designed for the SLC 500 programmable logic controller system. It is used to establish structured data communication between SLC 500 controllers and supervisory systems or other PLC networks through a Remote I/O (RIO) communication architecture.
This module acts as a communication bridge, enabling bidirectional data exchange between controllers, distributed systems, and supervisory processors. It is widely applied in industrial environments where reliable controller-to-controller communication and system integration are required.
The 1747-DCM/A supports multiple communication speeds and flexible network configurations, making it suitable for both small-scale and large distributed automation systems.
It is commonly used in manufacturing automation, process control systems, automotive production lines, material handling systems, and legacy industrial networks where SLC 500 systems remain in operation.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-DCM/A |
| Product Type | Direct Communication Module |
| Product Family | PLC Communication Module |
| Series | SLC 500 Series |
| Communication Method | Remote I/O (RIO) |
| Installation Type | Chassis Slot Mounted |
| Main Function | PLC Data Communication Interface |
Product Series Introduction
SLC 500 Series
The SLC 500 series is a modular PLC platform designed for industrial automation control systems.
It provides flexible architecture with support for processors, I/O modules, analog modules, communication interfaces, and system expansion components.
The system is widely used in medium-scale automation applications requiring reliable performance, stable communication, and easy system maintenance.
The 1747-DCM/A belongs to the communication module category within the SLC 500 platform and is specifically designed for Remote I/O based data exchange and supervisory system integration.
Detailed Technical Specifications of 1747-DCM/A
Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1747-DCM/A |
| Module Type | Direct Communication Module |
| Series | SLC 500 |
| Communication Protocol | Remote I/O (RIO) |
| Backplane Current Consumption | 360 mA at 5V DC |
| Communication Speed | 57.6 kbps / 115.2 kbps / 230.4 kbps |
| Communication Cable | Belden 9463 or equivalent |
| Connector Type | 6-Pin Phoenix Connector |
| Operation Mode | Standard / Extended Node |
| Data Transfer Type | Bidirectional |
| Supported Controllers | SLC 500 Fixed & Modular Processors |
| Network Role | Adapter / Interface Node |
| Termination Resistor | 82Ω / 150Ω depending on mode |
| LED Indicators | COMM / FAULT |
| Configuration Method | DIP Switch Settings |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5% to 95% Non-Condensing |
| Installation Method | Chassis Mounted |
| Noise Immunity | Industrial Grade |
| Certifications | UL / CSA / CE |
| Dimensions | 15.2 × 5.1 × 15.2 cm |
| Weight (kg) | 0.20 kg |
Product Features
1. Stable PLC Communication Interface
The 1747-DCM/A enables reliable communication between SLC 500 controllers and external supervisory systems.
It ensures structured data exchange for control signals, status information, and process data across industrial networks.
2. Flexible Remote I/O Architecture Support
The module integrates into Remote I/O systems, allowing communication across distributed automation architectures.
It supports long-distance data transmission between controllers and remote devices.
3. Multiple Communication Speed Options
The module supports three selectable transmission speeds: 57.6 kbps, 115.2 kbps, and 230.4 kbps.
This flexibility allows optimization based on network size and system requirements.
4. Industrial Noise Resistance Design
The module is designed to operate in electrically noisy environments such as factories, refineries, and heavy industrial facilities.
It maintains stable communication even under electromagnetic interference conditions.
5. Simple Configuration Structure
The DIP switch-based configuration system allows easy setup of node addressing and communication parameters without advanced software tools.
This makes it suitable for legacy industrial systems and field maintenance environments.
Product Applications
Manufacturing Automation
The module is used in production lines where multiple PLC systems must coordinate machine operations.
It enables stable communication between different automation zones within a factory.
Automotive Industry
Automotive assembly systems use the module for coordination between robotic stations, conveyors, and inspection systems.
It supports synchronized communication between distributed PLCs.
Process Control Systems
In chemical and industrial processing environments, the module facilitates data exchange between control systems and field devices.
This improves process stability and operational accuracy.
Material Handling Systems
Warehousing and logistics systems use the module for controlling conveyors, sorting machines, and automated transport systems.
It ensures smooth coordination between distributed equipment.
Legacy System Integration
The module is commonly used in older SLC 500 installations where Remote I/O communication is still in operation.
It enables continued use of existing infrastructure without full system replacement.
Product Advantages
| Advantage | Description |
|---|---|
| Reliable Communication | Stable Remote I/O data transmission |
| Flexible Configuration | DIP switch setup for easy adjustment |
| Industrial Durability | Designed for harsh environments |
| Long-Distance Support | Suitable for extended network layouts |
| Low Power Consumption | Efficient backplane usage |
| Simple Integration | Works with SLC 500 systems |
| Multiple Speed Options | Adjustable communication rates |
| Cost-Effective Solution | Ideal for legacy system maintenance |
Recommended Models from the Same Series or Related Series
SLC 500 Communication Family
| Model | Product Type | Main Function | Communication Type | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-DCM | Direct Communication Module | PLC Data Exchange | Remote I/O | 15 × 5 × 15 cm | 0.20 kg |
| 1747-SN | Scanner Module | Remote I/O Scanning | Remote I/O | 24 × 13 × 7 cm | 1.80 kg |
| 1747-ASB | Remote I/O Adapter | Distributed Rack Communication | Remote I/O | 14.5 × 13.1 × 3.5 cm | 0.168 kg |
| 1747-ACNR15 | Redundant Adapter Module | Redundant ControlNet Communication | ControlNet | 26.3 × 13.8 × 8.8 cm | 2.35 kg |
| 1747-BSN | Backup Scanner Module | System Redundancy Control | Remote I/O / Serial | 13.9 × 9.1 × 14.4 cm | 1.10 kg |
Recommended Popular Models from the Same Brand
Widely Used Industrial Automation Products
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-EN2TR | Ethernet Communication Module | Dual Ethernet Ports | Industrial Networking | 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-Channel 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 Network Switching | Industrial Communication | 16 × 12 × 5 cm | 0.80 kg |
Communication Architecture
The 1747-DCM/A functions as a communication interface between PLC systems and Remote I/O networks.
It maps input and output data between controllers, enabling structured data exchange across distributed automation systems.
This allows multiple PLC systems to operate in a coordinated control environment.
It is especially useful in legacy industrial systems where Remote I/O remains a core communication method.
Installation and Maintenance Characteristics
The module is installed into a standard SLC 500 chassis slot.
Its compact structure allows efficient use of chassis space.
LED indicators provide real-time status monitoring for communication and fault detection.
Maintenance is simple due to its modular design and straightforward configuration method.
Industrial Reliability
The 1747-DCM/A is designed for long-term industrial operation in environments with electrical noise, vibration, and temperature variation.
Its robust construction ensures stable communication performance over extended service periods.
It remains widely used in legacy SLC 500 systems due to its reliability and compatibility.
Summary
The Allen Bradley 1747-DCM/A is a reliable Direct Communication Module for SLC 500 automation systems.
It provides stable Remote I/O communication, flexible configuration options, and dependable PLC-to-PLC data exchange capability.
Its industrial durability and simple integration make it a practical solution for legacy automation environments.
For systems still operating SLC 500 architecture, the 1747-DCM/A remains an effective communication module for maintaining stable industrial control networks.