Allen-Bradley SLC 500 1747-L541 Controller Module

Product Overview

The Allen-Bradley 1747-L541 is a high-performance SLC 5/04 processor module engineered for use in modular SLC 500 programmable controller systems. It provides robust processing capabilities, flexible communication options, and reliable memory backup for complex industrial automation tasks. With support for up to 30 I/O module slots across three chassis and extensive analog and digital I/O handling, the 1747-L541 delivers stable operation in both discrete and process control applications.

Technical Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model Number: 1747-L541

• Series: SLC 500

• Product Type: CPU Controller Module

• Processor Type: SLC 5/04

• Memory Capacity: 16 KB user memory (battery-backed RAM)

• Program Memory: 16,000 words

• Backup Memory Module: 1747-M13

• Battery Backup: 1747-BA lithium battery

• Program Scan Time: 0.9 ms per K instruction

• I/O Capacity:

• 4096 digital inputs

• 4096 digital outputs

• 480 analog I/O channels

• Maximum I/O Chassis: 3

• Maximum Chassis Module Slots: 30

• I/O Scan Time: 0.225 milliseconds

• Communication Ports: Data Highway Plus (DH+), RS-232

• Data Highway Plus Baud Rates: 57.6, 115.2, and 230.4 kbps

• Program Storage Type: EEPROM or Flash (with memory module)

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Storage Temperature: -40°C to +85°C (-40°F to 185°F)

• Approximate Weight: 0.57 kg (1.25 lb)

• Mounting Type: Chassis-mounted (1746 series slot)

Application Scenarios

The Allen-Bradley 1747-L541 controller is commonly used in:

• Process automation requiring mid-range logic control

• Machine control systems with integrated analog and digital I/O

• Multi-chassis SLC 500 configurations in manufacturing and packaging lines

• Retrofit applications upgrading legacy SLC 5/03 processors for enhanced communication speed

Comparison with Similar Models

• 1747-L531: 8 KB memory, basic processing performance

• 1747-L541: 16 KB memory with DH+ and RS-232 ports

• 1747-L551: 32 KB memory, enhanced I/O capacity and faster scan rate

FAQ

Q: What communication options are supported by the 1747-L541?
A: It supports both RS-232 for serial communication and DH+ (Data Highway Plus) for networked PLC environments.

Q: Does the module support memory retention during power loss?
A: Yes, it uses the 1747-BA battery to preserve data and configuration settings during shutdown.

Q: Which programming software is compatible with this module?
A: It is compatible with RSLogix 500 and RSLinx for programming and communication setup.