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SKU:1747-L543
Allen-Bradley SLC 5/04 1747-L543 64KB Program Memory Module
Manufacturer: Allen-Bradley
Product No.: 1747-L543
Product Type: Memory Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
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Description
Product Overview
The Allen-Bradley 1747-L543 is a high-performance SLC 5/04 modular processor designed for the Allen-Bradley SLC 500 control system family. Equipped with 64 KB of battery-backed user memory (60K words for program/data and 4K words for data only), this central processing unit supports up to 4,096 discrete inputs and 4,096 discrete outputs across multiple chassis. It features built-in communication interfaces including a 9-pin RS-232 port and a 3-wire terminal Data Highway Plus (DH+) protocol port for distributed network connectivity. Operating reliably in temperatures ranging from 0 to 60°C, the processor module has a net weight of 0.50 kg (1.10 lbs).
Key Advantages
- High Memory Capacity: Features 64 KB (64,000 words) of battery-backed RAM designed to handle large medium-to-large scale control algorithms.
- Integrated DH+ and RS-232 Ports: Facilitates high-speed peer-to-peer communication and programming via Data Highway Plus and serial protocols.
- Extensive I/O Scalability: Supports up to 4,096 total input points and 4,096 output points across distributed chassis architectures.
- Fast Execution Speed: Delivers an average program scan time of 0.9 ms/K and rapid I/O scan speeds for time-critical automation.
- Comprehensive Diagnostic Indicators: Front-panel status LEDs provide instant visual feedback on run state, CPU faults, battery status, and communication channels.
Technical Specifications
| Manufacturer / Brand | Allen-Bradley / Rockwell Automation |
| Product Series | SLC 500 (SLC 5/04 Processor) |
| Catalog / Part Number | 1747-L543 |
| Module Type | Modular Controller / Central Processor Unit |
| User Memory Size | 64 KB (64,000 Words, Battery-Backed RAM) |
| Discrete I/O Capacity | 4,096 Inputs / 4,096 Outputs (Max) |
| Communication Ports | Data Highway Plus (DH+) & RS-232 (9-Pin) |
| Program Scan Time | 0.9 ms / K words (Typical) |
| Backplane Current Draw | 1.0 A @ 5V DC / 125 mA @ 24V DC |
| Battery Backup Module | 1747-BA (RAM) / 1747-M13 (Flash Backup) |
| Estimated Net Weight | 0.50 kg (1.10 lbs) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% (Non-Condensing) |
Frequently Asked Questions
Q1: What is the memory capacity of the Allen-Bradley 1747-L543 processor?
A1: It includes 64 KB (64,000 words) of battery-backed RAM user memory.
Q2: What communication interfaces are built into the 1747-L543?
A2: Features an RS-232 serial port and a Data Highway Plus (DH+) communication port.
Q3: How much does the Allen-Bradley 1747-L543 controller weigh?
A3: The net weight of the module is 0.50 kg (1.10 lbs).
Additional Specifications
- Gray
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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