Allen Bradley 1747-L511, also known as SLC 5/01 controller, is the base CPU module for the SLC 500 PLC system. It features 1K words of user memory and an integrated DH485 communication port, supports up to 960 local discrete I/O, executes ladder logic programs, and offers optional lithium battery backup for data retention, widely used for small-scale factory automation control.
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1747-L511
Allen Bradley
The Allen‑Bradley 1747‑L511 Controller module — the SLC 5/01 modular PLC processor purpose‑built for Allen‑Bradley 1747 SLC‑500 PLC automation control systems — executes ladder‑logic user program, processes local and remote I/O data and handles DH‑485 serial communication for small‑to‑medium discrete automation applications in the most demanding industrial environments. Designed for discrete manufacturing, material handling, water‑wastewater treatment, petrochemical processing, and critical process industries, the Allen‑Bradley 1747‑L511 Controller module combines CPU processing core, RAM program memory, DH‑485 communication interface, status LED indicators and SLC‑500 backplane bus controller circuitry, ensuring reliable program execution and I/O data processing across all operating conditions.
The Allen‑Bradley 1747‑L511 Controller module features 1K instruction user program memory, supports up to 3940 discrete I/O points, works with optional 1747‑BA lithium backup battery and 1747‑M11 EEPROM memory module, and operates across a wide industrial temperature range of 0 °C to +60 °C. The Allen‑Bradley 1747‑L511 Controller module carries industrial EMC compliance certification for heavy‑duty workshop environments, fully complying with UL, CE and relevant international industrial control equipment standards. Whether deployed in an automated assembly line, material handling facility, or chemical processing plant, the Allen‑Bradley 1747‑L511 Controller module delivers dependable compact PLC processor performance that critical industrial control demands.
Part Number | 1747-L511 |
Manufacturer | Allen Bradley |
System Compatibility | Allen‑Bradley 1747 |
Country of Origin | USA |
Product Condition | 100% New & Original |
Operating Temperature Range | 0 °C to +60 °C (32 °F to +140 °F) |
Lead Time | 2-3 business days after payment confirmation |
Warranty | 1 year |
Shipping Carriers | DHL, FedEx, UPS, TNT, EMS |
Contact:Cheryl Qi |
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The Allen‑Bradley 1747‑L511 Controller module stands out from comparable PLC processor modules in several key areas.
Compact SLC 5/01 modular processor design. The Allen‑Bradley 1747‑L511 Controller module occupies the dedicated CPU slot of SLC‑500 chassis, providing cost‑effective control solution for small‑scale automation projects with 1K instruction program capacity.
Built‑in DH‑485 communication capability. The Allen‑Bradley 1747‑L511 Controller module integrates DH‑485 multi‑drop serial port, supporting multi‑controller networking, HMI connection and programming download without extra communication adapter modules.
Expandable memory‑backup options. The Allen‑Bradley 1747‑L511 Controller module supports 1747‑BA lithium battery for RAM retention and 1747‑M11 EEPROM module for non‑volatile program backup, preventing program loss caused by power failure or battery exhaustion.
Multi‑LED comprehensive diagnostic indicators. The Allen‑Bradley 1747‑L511 Controller module provides dedicated LED indicators for processor run, fault, battery‑low and communication status, allowing technicians to rapidly judge running state and locate system faults without programming software.
Rich SLC‑500 instruction‑set support. The Allen‑Bradley 1747‑L511 Controller module supports standard ladder‑logic instructions, math, compare, move and sequencer instructions for discrete machine control applications.
Native Allen‑Bradley 1747 SLC‑500 integration. As a factory‑original Allen‑Bradley 1747 series component, the Allen‑Bradley 1747‑L511 Controller module works natively with all standard 1746 I/O modules and SLC‑500 chassis, configured via RSLogix 500 software without conversion adapters.
Discrete Manufacturing & Process Automation Production Lines. Main CPU processor within Allen‑Bradley 1747 SLC‑500 PLC systems, executing ladder‑logic control for small‑size assembly machinery and discrete production equipment.
Material Handling & Conveyor Systems. The Allen‑Bradley 1747‑L511 Controller module runs control logic for compact conveyor units, performing sensor signal processing and actuator output control inside small‑scale material‑handling cabinets.
Water Treatment & Wastewater Control Plants. The Allen‑Bradley 1747‑L511 Controller module serves as main processor for small auxiliary water‑process control stations for simple pump interlock and sequence control.
Petrochemical & Chemical Processing Facilities. The Allen‑Bradley 1747‑L511 Controller module provides control‑logic processing for non‑hazardous‑zone small auxiliary automation cabinets built around Allen‑Bradley SLC‑500 automation hardware.
General Industrial PLC‑based Control Systems. The Allen‑Bradley 1747‑L511 Controller module serves as original spare SLC‑500 CPU hardware for existing Allen‑Bradley 1747 SLC‑500‑based distributed automation systems.
The Allen‑Bradley 1747‑L511 Controller module holds the following international safety and compliance approvals:
• UL listed — North‑American industrial control equipment safety approval.
• CE certification — European industrial control equipment safety and EMC compliance.
• C‑Tick marked — EMC compliance for Australian and New Zealand markets.
• Class I Division 2 certified — Suitable for installation in specified hazardous classified locations.
All modules supplied are 100% new original Allen‑Bradley parts. Every Allen‑Bradley 1747‑L511 Controller module unit is functionally tested before dispatch, packed in professional anti‑static packaging, and covered by a one‑year warranty from the date of delivery.
Get the Allen Bradley 1747-L511 with fast worldwide delivery — in‑stock units ship within 2‑3 business days of payment confirmation.
• Email: chen@htechplc.com
• WhatsApp / Phone: +86-181-5013-7565
• Shipping carriers: DHL, FedEx, UPS, TNT
Why buy from us:
• 100% new and original Allen‑Bradley 1747 series parts including the Allen‑Bradley 1747‑L511 Controller module
• Every product tested before shipment
• Professional anti-static packaging
• One‑year warranty on all units
• Free online quotes and 24/7 technical support
• Competitive pricing with fast global delivery