Allen-Bradley 1747-L511 SLC 5/01 processor, 1K user memory, DH-485 port, supports 256 I/O points, SLC 500 series, 12-month warranty, fast shipping.

• 1747-L511 is the SLC 5/01 entry-level CPU module for Allen-Bradley SLC 500 PLC systems.
• It provides 1K words of capacitor-backed RAM for user programs and data, ideal for small-scale automation.
• Built-in DH-485 communication port enables networking and data exchange with other SLC 500 devices.
• Installs in slot 0 of the SLC 500 chassis, supporting up to 256 digital I/O and 32 analog I/O points.

• Discontinued in 2017, widely used for legacy system maintenance and replacement.

• 
  

• Entry-level SLC 5/01 processor for cost-effective small machine control
• 1K instruction memory with capacitor backup for data retention during power loss
• Native DH-485 port for peer-to-peer communication and SCADA connection
• Maximum 256 digital I/O points and 32 analog I/O points for flexible system configuration
• Fast program scan speed: 8ms per 1000 instructions, bit execution at 0.37μs
• Supports optional 1747-M1/M2 EEPROM modules for permanent program storage

• LED status indicators for power, run, fault, and communication diagnostics

• Brand: Allen-Bradley
• Part Number: 1747-L511
• Series: SLC 500
• Processor Type: SLC 5/01 (Entry-Level CPU)
• User Memory: 1K Words (Capacitor-Backed RAM)
• Max Digital I/O: 256 Points
• Max Analog I/O: 32 Points
• Communication: DH-485 (9-pin D-Sub)
• Backplane Current: 90mA @ 5VDC
• Operating Temperature: 0°C ~ 60°C
• Condition: Original / Refurbished

• Warranty: 12 Months

• 
  

• Small-scale machine automation and standalone equipment control
• Basic process control, material handling, and HVAC systems
• Factory floor monitoring with DH-485 network connectivity
• Replacement for aging SLC 500 controllers in legacy production lines

• Educational and training platforms for PLC programming fundamentals

• 
  

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