Product Details
Product Overview
The 1747-L514 is a foundational modular processor within the Allen-Bradley SLC 500 family, specifically designated as an SLC 5/01 controller. Engineered for entry-level to mid-range industrial automation tasks, the 1747-L514 (PN: 1747-L514) provides a reliable execution environment for discrete and analog control. It resides exclusively in Slot 0 of an SLC 500 chassis and supports DH-485 communication for networked data exchange and programming.
Technical Specifications
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Manufacturer Allen-Bradley / Rockwell Automation
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Product Line SLC 500 Modular Hardware
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Model Number 1747-L514
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Processor Type SLC 5/01
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User Program Memory 4K Instructions (approx. 4,000 words)
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Memory Storage Capacitor-backed RAM (Internal)
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Non-Volatile Backup Compatible with 1747-M1 (1K) and 1747-M2 (4K) EEPROM modules
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EEPROM Adapter Socket 1747-M5
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Maximum I/O Capacity 960 Discrete I/O points
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Analog I/O Capacity 480 points
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Chassis Expansion Supports up to 3 interconnected chassis
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Max Module Count 30 local I/O modules
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Typical Program Scan Time 8 milliseconds per 1K
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I/O Scan Time 2.6 milliseconds
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Communication Interface DH-485 (RJ-45 port)
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Backplane Current (5V DC) 350 mA
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Backplane Current (24V DC) 105 mA
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Operating Temperature 32-140°F (0-60°C)
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Shipping Weight 0.75 lbs (0.34 kg)
Supported Instruction Sets
The 1747-L514 utilizes a robust instruction set suitable for standard logic and mathematical operations, including:
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Bit-level logic (XIC, XIO, OTE, etc.)
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Timer and Counter instructions (TON, TOF, RTO, CTU, CTD)
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Comparison operations (EQU, NEQ, LES, GRT)
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Basic Math (ADD, SUB, MUL, DIV)
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Data Handling (Move, Copy, Bit Shift)
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Program Flow Control (Jump, Subroutine, MCR)
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Sequencer instructions for automated step-based logic
Frequently Asked Questions
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How long will the capacitor-backed RAM hold the program without power?
The internal capacitor of the 1747-L514 is designed to retain memory for short periods (typically several days to a few weeks depending on ambient temperature). For long-term storage, a 1747-M1 or 1747-M2 EEPROM is required.
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Does the 1747-L514 support EtherNet/IP or ControlNet?
Native support is limited to DH-485. Connecting to Ethernet would require an external bridge such as a 1761-NET-ENI or upgrading to a higher-tier SLC processor like the 5/05.
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Can this processor be placed in any slot?
No, the 1747-L514 must always be installed in Slot 0 (the leftmost slot) of the primary local chassis.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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