PRODUCT INFORMATION
Product Overview
Revision scope: These specifications describe 1747-L541/B (Series B). Check the corresponding technical data before specifying another hardware series.
The Allen-Bradley 1747-L541 is an SLC 500 processor module in the SLC 5/04 controller family. It features 16K words of integrated user memory for industrial ladder logic execution. The unit addresses up to 4,096 digital inputs and 4,096 digital outputs. System capacity supports up to 480 analog input and output channels. It controls up to 30 local slots distributed across three chassis.
Built-in communication ports include Data Highway Plus and RS-232 serial interfaces. The processor delivers a typical program scan rate of 0.9 ms per kiloword. Bit execution requires 0.37 microseconds for basic examine instructions. The backplane current draw requires 1,000 mA at 5V DC and 200 mA at 24V DC. An optional 1747-M13 memory module provides 64 KB of flash backup storage.
TECHNICAL DATA
Technical Specifications
These specifications describe 1747-L541/B (Series B). Check the corresponding technical data before specifying another hardware series.
| Parameter | Specification |
|---|
| Specification | Value |
|---|
| Series / Family | Allen-Bradley SLC 500 / SLC 5/04 |
|---|
| User Memory | 16K Words |
|---|
| Flash Backup Memory | 64 KB (via 1747-M13 memory module) |
|---|
| Maximum Digital I/O | 4,096 Inputs / 4,096 Outputs (8,192 total) |
|---|
| Maximum Analog I/O | 480 Points |
|---|
| Communication Ports | Data Highway Plus (DH+), RS-232 |
|---|
| Backplane Current Draw | 1,000 mA @ 5V DC; 200 mA @ 24V DC |
|---|
| Typical Scan Time | 0.9 ms/K |
|---|
| Bit Execution Time (XIC) | 0.37 microseconds |
|---|
| Selectable Timed Interrupt (STI) | 1 ms minimum |
|---|
| Discrete Input Interrupt (DII) | 0.5 ms |
|---|
| Local Chassis / Max Slots | 3 Chassis / 30 Slots |
|---|
| Power Hold-Up Time | 20 ms to 3 seconds (load dependent) |
|---|
| Minimum Thermal Dissipation | 4 W |
|---|
| Mounting Style | Rack Mount (SLC 500 backplane) |
|---|
| Programming Software | RSLogix 500 |
|---|
| Weight | Approx. 2.09 lbs (0.95 kg) |
|---|
| Certifications | UL Listed (US and Canada), CE, C-Tick |
|---|
TECHNICAL INFORMATION
Order Information
| Revision Part # | Also known as | Reference Price |
|---|
| 1747-L541 Ser B | 1747-L541/B, Series B | USD 359.00, indicative (Used/Refurbished) |
| 1747-L541 Ser C | 1747-L541/C, Series C | USD 459.00, indicative (Used/Refurbished) |
| 1747-L541 Ser D | 1747-L541/D, Series D | |
Reference prices are observed third-party market prices for the stated revision, not a final Aituos quotation.
TECHNICAL INFORMATION
Features
- Provides 16K words of user program memory.
- Supports up to 30 module slots across three local chassis.
- Includes integrated Data Highway Plus and RS-232 communication ports.
- Offers flash backup memory up to 64 KB using the 1747-M13 module.
- Delivers 0.37 microsecond bit execution speed for contact instructions.
- Executes selectable timed interrupts down to 1 millisecond.
TECHNICAL INFORMATION
Connections / Interfaces
- Data Highway Plus port supports networking across DH+ peer links.
- RS-232 port supports serial communication and programming connections.
- Backplane edge connector interfaces with SLC 500 chassis slots.
TECHNICAL INFORMATION
Installation Guidelines
- Install the processor in slot 0 of the first SLC 500 chassis.
- Disconnect all chassis power before inserting or removing the processor module.
- Engage the top and bottom retaining latches to secure the module.
- Ensure the chassis backplane has a proper protective earth ground connection.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure module settings and write ladder logic using RSLogix 500 software.
- Set the DH+ station address and transmission rate in the controller project.
- Install the 1747-M13 memory module for non-volatile program backup.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley SLC 500 modular chassis.
- Operates with SLC 500 discrete and analog input and output modules.
- Supported by Rockwell Software RSLogix 500 programming environments.
TECHNICAL INFORMATION
Compliance and Certifications
- UL Listed for the United States and Canada.
- CE compliant for applicable European standards.
- C-Tick compliant for Australia and New Zealand.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley SLC 500 modular chassis. Operates with SLC 500 discrete and analog input and output modules. Supported by Rockwell Software RSLogix 500 programming environments.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What communication interfaces are included on the Allen-Bradley 1747-L541?
The module includes one Data Highway Plus port and one RS-232 serial communication port.
What is the memory capacity of the 1747-L541 processor?
The processor contains 16K words of user memory and supports optional 64 KB flash backup.
Which programming software supports the 1747-L541 controller?
Rockwell Software RSLogix 500 programming software supports configuration and programming for this module.
What is the market reference price for the 1747-L541?
Observed market reference pricing is USD 359.00 for refurbished units. These figures are indicative market reference pricing only and not a final quotation.
