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- 25 × 17 × 6 cm
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Allen Bradley 1747-L541 Detailed Product Introduction and Technical Specifications
Product Overview
The Allen Bradley 1747-L541 is a SLC 5/04 series programmable logic controller CPU module used in the SLC 500 automation platform. It is one of the higher-performance processors in the SLC family, designed for industrial environments requiring fast scan speed, larger memory capacity, and advanced communication capabilities.
This controller is commonly used in medium and large-scale automation systems such as manufacturing production lines, process control systems, material handling networks, and legacy industrial installations.
Compared with SLC 5/03 models, the 1747-L541 introduces higher processing performance and improved communication through the Data Highway Plus (DH+) network, making it suitable for distributed and multi-node control systems.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-L541 |
| Product Type | PLC CPU Module |
| Product Family | SLC 500 Series |
| Series | SLC 5/04 Controller Series |
| Main Function | Central Processing Unit for Industrial Automation |
| Communication | DH+, RS-232 |
| Installation Type | Rack-mounted CPU Module |
Product Series Introduction
SLC 500 Series Overview
The SLC 500 series is a modular PLC platform designed for industrial automation control applications.
It supports flexible configurations including CPU modules, I/O modules, communication modules, and power supplies installed in rack-based systems.
The series is widely used in manufacturing, process industries, packaging systems, and logistics automation due to its reliability and long lifecycle.
The 1747-L541 belongs to the SLC 5/04 CPU family, which provides higher performance and more advanced communication functions than previous SLC generations.
Detailed Technical Specifications of 1747-L541
| Parameter | Specification |
|---|---|
| Model | 1747-L541 |
| Processor Type | SLC 5/04 CPU |
| User Memory | 16K words (expandable to 32K / 64K variants in same family) |
| Program Scan Time | ~0.9 ms / K instruction |
| I/O Scan Time | ~0.225 ms |
| Maximum I/O Capacity | 4096 inputs / 4096 outputs |
| Analog I/O Support | Up to 480 channels |
| Maximum I/O Chassis | 3 chassis |
| Module Slots Supported | 30 slots |
| Communication Ports | DH+, RS-232 |
| Communication Protocols | DF1, DH-485, ASCII, Modbus RTU |
| Backplane Current (5V DC) | 1.0 A |
| Backplane Current (24V DC) | 200 mA |
| Memory Type | Battery-backed RAM |
| Backup Memory | Flash EPROM (1747-M13 compatible) |
| Battery Type | 1747-BA |
| Power Supply Compatibility | 1746-P1 to 1746-P7 |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Shock Resistance | 30G operating |
| Vibration Resistance | Industrial standard |
| Dimensions | 25 × 17 × 6 cm |
| Weight (kg) | 0.45 kg |
Product Features
1. High-Speed Processing Performance
The 1747-L541 delivers faster execution speed with approximately 0.9 ms per K instruction scan time.
This makes it suitable for applications requiring fast response and real-time control.
2. Large Memory Capacity
With 16K words of memory, the controller supports complex automation programs and advanced logic structures.
It is suitable for medium to large-scale industrial systems.
3. High-Level Communication Capability
The CPU supports DH+ network communication and RS-232 serial communication.
It enables integration with PLC networks, HMIs, SCADA systems, and distributed control architectures.
4. High I/O Scalability
The controller supports up to 4096 digital I/O points and 480 analog channels.
This allows deployment in large industrial automation systems with multiple subsystems.
5. Advanced Instruction Set
The processor supports advanced math instructions, indirect addressing, and high-level control functions.
This enhances flexibility for complex industrial logic programming.
6. Reliable Memory Backup System
The system uses battery-backed RAM and Flash EPROM support to retain program data during power loss.
This ensures fast recovery and stable operation after shutdown.
Product Applications
Manufacturing Automation
Used in large production lines requiring coordinated machine control and sequencing.
Process Control Systems
Applied in chemical plants, water treatment facilities, and industrial process monitoring systems.
Packaging and Assembly Systems
Controls synchronized high-speed packaging and assembly operations.
Material Handling Systems
Manages conveyor networks, sorting systems, and logistics automation.
Legacy Industrial Installations
Widely used in existing SLC 500 systems still operating in factories worldwide.
Product Advantages
| Advantage | Description |
|---|---|
| High Processing Speed | Fast scan cycle improves response time |
| Large Memory Capacity | Supports complex control programs |
| Advanced Communication | DH+ and RS-232 networking |
| High System Scalability | Supports large I/O systems |
| Stable Real-Time Control | Deterministic execution performance |
| Battery Backup Protection | Prevents data loss during power failure |
| Industrial Durability | Long operational lifespan |
| Strong Legacy Compatibility | Widely used in existing systems |
Recommended Models from the Same Series or Related Series
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-L524 | CPU Module | SLC 5/02 controller | Medium systems | 25 × 16.6 × 5.9 cm | 0.17 kg |
| 1747-L531 | CPU Module | High-speed CPU | Large automation | 25 × 16.6 × 5.9 cm | 0.48 kg |
| 1747-L532 | CPU Module | Advanced SLC 5/03 CPU | Industrial systems | 25 × 16.6 × 5.9 cm | 0.34 kg |
| 1747-L541 | CPU Module | High-performance SLC 5/04 | Complex automation | 25 × 17 × 6 cm | 0.45 kg |
| 1747-L553 | CPU Module | Advanced network CPU | Distributed systems | 21 × 17 × 18 cm | 2.10 kg |
Recommended Popular Models from Same Brand
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-EN2TR | Ethernet Module | Dual Ethernet/IP ports | Industrial networking | 14 × 11 × 8 cm | 0.45 kg |
| 1769-L33ER | Compact PLC | 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 Switch | Managed Ethernet switch | Network systems | 16 × 12 × 5 cm | 0.80 kg |
System Role in Industrial Automation
The 1747-L541 functions as a central processing unit in SLC 500 PLC systems.
It executes control logic, manages I/O modules, and handles high-speed communication across industrial networks.
Its DH+ capability enables multi-node communication in distributed control environments.
Installation and Maintenance Characteristics
The CPU is installed in a standard SLC 500 rack system with power supply and I/O modules.
LED indicators provide real-time status monitoring including run, fault, battery, and communication states.
Maintenance is simplified due to modular architecture and mature system design.
Industrial Reliability
The 1747-L541 is widely used in industrial environments due to its high stability and long service life.
It remains one of the most common processors in legacy SLC 500 systems worldwide.
Its rugged design ensures continuous operation under industrial conditions.
Summary
The Allen Bradley 1747-L541 is a high-performance SLC 5/04 PLC CPU designed for complex industrial automation systems.
It provides fast processing speed, large memory capacity, and advanced communication functions including DH+.
Its reliability, scalability, and industrial durability make it a key controller in both modernized and legacy automation environments.