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Allen Bradley 1747-M11 Detailed Product Introduction and Technical Specifications
Product Overview
The Allen Bradley 1747-M11 is a memory module designed for use within the SLC 500 programmable logic controller system. It is used to provide non-volatile program and data storage for SLC controllers, ensuring that automation programs are retained even when power is removed or during system maintenance.
This module plays a supporting role in industrial automation systems by protecting control logic and reducing downtime during controller replacement or system recovery.
The 1747-M11 is commonly used in legacy SLC 500 installations where reliable program storage and system stability are required over long operational periods.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-M11 |
| Product Type | EEPROM Memory Module |
| Product Family | SLC 500 Series |
| Series | SLC Memory Expansion / Backup Modules |
| Main Function | Program and Data Storage |
| Memory Type | EEPROM |
| Installation Type | Plug-in module |
Product Series Introduction
SLC 500 System Overview
The SLC 500 system is a modular PLC platform designed for industrial automation applications.
It supports a flexible structure with CPU modules, I/O modules, communication modules, and memory modules integrated into a rack-based or fixed controller system.
The system is widely used in manufacturing, process industries, packaging systems, and material handling applications due to its reliability and long lifecycle.
The 1747-M11 belongs to the SLC memory module family, designed to extend or support program storage functions for compatible controllers.
Detailed Technical Specifications of 1747-M11
| Parameter | Specification |
|---|---|
| Model | 1747-M11 |
| Product Type | EEPROM Memory Module |
| Memory Capacity | ~1K to 4K words (configuration dependent) |
| Storage Type | Non-volatile EEPROM |
| Function | Program and data table backup |
| Compatible Controllers | SLC 5/01, SLC 5/02 |
| System Compatibility | SLC 500 fixed and modular systems |
| Backup Function | Power-loss program retention |
| Data Retention | Long-term non-volatile storage |
| Programming Function | Program upload/download storage |
| Installation Method | Plug-in memory slot |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Shock Resistance | Industrial standard |
| Vibration Resistance | IEC industrial level |
| Dimensions | ~5.1 × 2.5 × 2.5 cm |
| Weight (kg) | ~0.10 kg |
Product Features
1. Non-Volatile EEPROM Storage
The 1747-M11 uses EEPROM technology, which retains stored data without requiring battery power.
This ensures that PLC programs remain intact even during complete power loss.
2. Reliable Program Backup
The module provides stable backup storage for control logic and system configuration.
It allows fast recovery after system failure or controller replacement.
3. Compatibility with SLC Controllers
Designed for integration with SLC 5/01 and SLC 5/02 controllers.
It ensures seamless communication with SLC 500 fixed and modular systems.
4. Compact and Simple Design
The module features a compact plug-in structure for easy installation.
No complex configuration or setup is required for operation.
5. Industrial Durability
Built for industrial environments with resistance to vibration, temperature variation, and long-term operation.
Product Applications
PLC Program Backup
Used to store automation programs and protect control logic from loss.
Industrial Machine Control
Ensures stable program retention in machine-based automation systems.
System Recovery and Maintenance
Supports fast recovery during equipment replacement or system failure.
Manufacturing Equipment
Used in production machines requiring reliable control logic storage.
Legacy Automation Systems
Common in older SLC 500 installations still operating in industrial facilities.
Product Advantages
| Advantage | Description |
|---|---|
| Non-Volatile Memory | No battery required for data retention |
| Stable Backup Function | Prevents program loss |
| Simple Installation | Plug-in module design |
| High Compatibility | Works with SLC 5/01 and 5/02 |
| Industrial Reliability | Stable in harsh environments |
| Fast Recovery Support | Reduces downtime |
| Compact Structure | Easy integration into PLC systems |
| Long Service Life | Designed for industrial longevity |
Recommended Models from Same Series or Related Series
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-M0 | Memory Module | Basic EEPROM storage | Small PLC systems | 5 × 2.5 × 2.5 cm | 0.09 kg |
| 1747-M1 | EEPROM Module | Program backup | SLC 5/01–5/02 | 5 × 2.5 × 2.5 cm | 0.11 kg |
| 1747-M11 | EEPROM Module | Enhanced backup storage | SLC systems | 5 × 2.5 × 2.5 cm | 0.10 kg |
| 1747-M2 | EEPROM Module | Expanded memory backup | Industrial PLC systems | 5 × 2.5 × 2.5 cm | 0.11 kg |
| 1747-M13 | Flash Module | Advanced memory support | SLC 5/04 systems | 6 × 3 × 2 cm | 0.15 kg |
Recommended Popular Models from Same Brand
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-L541 | CPU Module | SLC 5/04 processor | Large automation systems | 25 × 17 × 6 cm | 0.45 kg |
| 1747-L542 | CPU Module | High-performance CPU | Distributed control systems | 25 × 16.6 × 5.9 cm | 0.40 kg |
| 1747-L551 | CPU Module | Ethernet-enabled CPU | Networked automation | 25 × 16.5 × 5.6 cm | 0.42 kg |
| 1756-EN2TR | Ethernet Module | Dual Ethernet/IP ports | Industrial networking | 14 × 11 × 8 cm | 0.45 kg |
| 1769-L33ER | Compact PLC | Built-in Ethernet/IP | Machine automation | 18 × 12 × 9 cm | 0.92 kg |
System Role in Industrial Automation
The 1747-M11 functions as a memory backup module within SLC 500 systems.
It ensures that PLC programs and configuration data are safely stored and can be recovered after system shutdown or failure.
It plays a critical role in maintaining continuity in industrial automation systems.
Installation and Maintenance Characteristics
The module is installed directly into the controller or memory slot.
It requires no programming configuration for basic operation.
Maintenance is minimal, with replacement only required in case of failure or system upgrade.
Its solid-state EEPROM design reduces maintenance needs compared to battery-based storage solutions.
Industrial Reliability
The 1747-M11 is widely used in industrial environments due to its simplicity and stable memory retention capability.
It continues to be used in legacy SLC 500 systems across manufacturing plants worldwide.
Its reliability and long lifecycle make it suitable for continuous industrial operation.
Summary
The Allen Bradley 1747-M11 is an EEPROM memory module designed for SLC 500 PLC systems.
It provides stable non-volatile program storage, ensuring reliable backup and recovery of automation logic.
Its simplicity, durability, and compatibility make it a key component in legacy industrial control systems requiring dependable memory retention.