Allen-Bradley 1747-L524 SLC 5/02 processor, 4K user memory, DH-485 & RS-232 ports, 4096 I/O points, SLC 500 series, 12-month warranty, fast shipping.

Product Overview

• 1747-L524 is the SLC 5/02 mid-range CPU module for Allen-Bradley SLC 500 PLC systems.
• It provides 4K words of battery-backed RAM (capacitor backup: 2 weeks; lithium battery: 5 years).
• Dual communication ports: DH-485 (9-pin D-Sub) and RS-232 for serial devices.
• Installs in slot 0 of the SLC 500 chassis, supporting 3 chassis / 30 slots max and up to 4096 discrete I/O points.

• Discontinued, widely used for legacy system maintenance, replacement, and expansion

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Core Features

• Mid-range SLC 5/02 processor for reliable small-to-medium automation control
• 4K instruction memory with battery backup for data retention during power loss
• Dual ports: DH-485 (networking) and RS-232 (serial devices: HMI, printer, scanner)
• High I/O capacity: 4096 discrete I/O and 480 analog I/O points
• Fast scan speed: 4.8ms per 1000 instructions; normal I/O scan: 1.6ms
• Supports optional 1747-M1/M2 EEPROM modules for permanent program storage
• LED indicators: Run, Fault, Forced, I/O, Battery Low, COMM for easy diagnostics

• Single-slot installation, compatible with all SLC 500 chassis and I/O modules

Technical Parameters

• Brand: Allen-Bradley
• Part Number: 1747-L524
• Series: SLC 500
• Processor Type: SLC 5/02 (Mid-Range CPU)
• User Memory: 4K Words (Battery-Backed RAM)
• Max Discrete I/O: 4096 Points
• Max Analog I/O: 480 Points
• Communication: DH-485 (9-pin D-Sub) + RS-232
• Backplane Current: 90mA @ 5VDC
• Operating Temperature: 0°C ~ 60°C
• Programming Software: RSLogix 500, APS, HHT
• Condition: Original / Refurbished

• Warranty: 12 Months

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Applications

• Small-to-medium machine automation and standalone equipment control
• Process control, material handling, packaging, and HVAC systems
• Factory floor networking with DH-485 and serial device connection via RS-232
• SCADA integration, remote monitoring, and data acquisition

• Replacement for aging SLC 500 controllers in legacy production lines

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Our Advantages

• Fully tested for logic, communication, and memory integrity before shipping
• Large inventory of refurbished units for immediate global delivery
• Expert technical support for SLC 500 system configuration and debugging
• Competitive pricing for obsolete industrial control components
• Reliable after-sales service with 12-month standard warranty