Allen Bradley 1747-L524 Series C SLC500 Processor Unit

Overview

Allen-Bradley 1747-L524 is an SLC 5/02 processor module designed for the SLC 500 modular controller platform. This processor features 4KB maximum memory for instructions and supports up to 4,096 discrete input and output points. The 1747-L524 combines compact form-factor design with robust industrial-grade performance, making it ideal for mid-range automation control tasks in manufacturing, process control, and facility management.

Key Features

• 4KB user-configurable memory for both instructions and data
• 4,096 discrete I/O capacity for large-scale I/O requirements
• Built-in DH-485 communication port for direct network connectivity
• Support for analog, digital, scanner modules (DeviceNet, ControlNet, Universal Remote I/O), specialty, and intelligent I/O modules




• User-replaceable battery with 2-year estimated lifespan




• Programmable with RSLogix 500, PLC-500 A.I. Series, HHT, and APS software platforms

Technical Specifications

• Program scan time: 4.8 milliseconds/K
• I/O scan time: 1.6 milliseconds
• Bit execution: 2.4 microseconds


Current draw: 0.9 A maximum at 5 VDC

• Backplane current load: 350 mA at 5 VDC; 105 mA at 24 VDC


Dimensions: 145 × 35 × 142 mm

Enclosure: Open-style, chassis-mounted

Typical Applications

The 1747-L524 processor is commonly deployed in:

• Process automation and batch control systems
• Discrete manufacturing and assembly lines
• Facility HVAC and utility management systems
• Material handling and conveyor control
• Retrofit and legacy system upgrades requiring drop-in replacement

Compatibility & Replacements

Compatible With

• SLC 500 modular chassis and I/O base units
• DeviceNet, ControlNet, and Universal Remote I/O scanner modules
• All standard SLC 500 analog, digital, and specialty I/O modules
• DH-485 communication networks (1747-PIC required for programming via DH-485)




• EEPROM memory modules for program archiving

Replaces / Drop-In Replacement For

Verify compatibility with your system integrator before ordering to confirm exact interchangeability with legacy systems.

Works With

• RSLogix 500 programming software
• PLC-500 A.I. Series software
• HHT (Hand-Held Terminals)
• APS (Allen-Bradley Programming Software)
• SLC 500 family modules and I/O racks
• DeviceNet, ControlNet, and EtherNet/IP via scanner modules

[
{
“label”: “Processor Type”,
“value”: “SLC 5/02”
},
{
“label”: “Memory Size”,
“value”: “4 KB (user-configurable for instructions and data)”
},
{
“label”: “Maximum I/O Points”,
“value”: “4,096 discrete inputs and 4,096 discrete outputs”
},
{
“label”: “Maximum Analog I/O”,
“value”: “480 local points”
},
{
“label”: “Communication Port”,
“value”: “Built-in DH-485 (requires 1747-PIC for programming)”
},
{
“label”: “Program Scan Time”,
“value”: “4.8 ms/K”
},
{
“label”: “I/O Scan Time”,
“value”: “1.6 milliseconds”
},
{
“label”: “Bit Execution Time”,
“value”: “2.4 microseconds”
},
{
“label”: “Power Supply”,
“value”: “5 VDC internal; 24 VDC backplane”
},
{
“label”: “Current Draw”,
“value”: “0.9 A maximum at 5 VDC”
},
{
“label”: “Backplane Load”,
“value”: “350 mA at 5 VDC; 105 mA at 24 VDC”
},
{
“label”: “Dimensions”,
“value”: “145 × 35 × 142 mm (H × W × D)”
},
{
“label”: “Enclosure Type”,
“value”: “Open-style, chassis-mounted”
},
{
“label”: “Battery”,
“value”: “User-replaceable, 2-year estimated life”
},
{
“label”: “Compatible Models”,
“value”: “SLC 500 family; alternate part number 1747-L524C”
}
]