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    AI Overview
    The Siemens 6FC5357-0BB11-0AE0 is a
    SINUMERIK 840D/DE NCU 571.2 Numerical Control Unit (NCU) specifically sold without its operating system software , meaning it's a blank hardware unit requiring the proper firmware/software to be loaded for function, typically featuring a 100 MHz processor, 0.5MB NC memory, and an integrated PLC (S7-315-2 DP) ready for PROFIBUS DP. It's a common part for CNC machine replacements or upgrades where the software is managed separately.
    Key Specifications & Features:
    • Product: Siemens SINUMERIK 840D/DE NCU 571.2.
    • Processor: 486DX4 @ 100 MHz.
    • Memory: 0.5 MB NC Memory, 96 KB PLC Memory.
    • PLC: Integrated SIMATIC S7-315-2 DP.
    • Connectivity: Prepared for PROFIBUS DP, MPI/DP RS-485.
    • Form Factor: PCMCIA Slot available.
    • Condition: Often sold "Used" or "Refurbished" as a bare hardware unit.
    What "Without System Software Memory" Means:
    This unit provides the core hardware (CPU, memory banks, interfaces) but lacks the actual operating system (OS) and application software needed for a CNC machine to run. You need to load the correct Siemens SINUMERIK 840D/DE software onto it to make it fully operational for your machine tool.
    Common Uses:
    • Replacing a failed or damaged NCU on an existing 840D/DE system.
    • Upgrading existing older hardware where software management is already established.
    • Siemens 6FC5357-0BB11-0AE0, Used PLCH Packaging
      Customers understand and agree that proper software (firmware) licensing, maintenance and upgrades are subject to applicable manuf...
      PLC Hardware
    • 6FC5357-0BB11-0AE0 Siemens by PLC Direct
      6FC53570BB110AE0. Product Description, **spare part** SINUMERIK 840DE NCU 571.2 without system software memory: NC 0.5 MB, PLC 96 ...
      PLC Direct
    • 6FC5357-0BB11-0AE0 | Sinumerik 840D/DE NCU 571.2, Used (UPP)
      Siemens 6FC5357-0BB11-0AE0. 6FC5357-0BB11-0AE0; Siemens; Sinumerik 840D/DE NCU 571.2, 486DX4; 100 MHz Processor; Memory 0.5MB; Int...
      eBay
    • SIEMENS 6FC5357-0BB11-0AE0 SINUMERIK 840DE NCU ...
      (The item you receive is the item you see in the pictures.) Product Description. SINUMERIK 840DE NCU 571.2 W/O SYSTEM SOFTWARE MEM...
      eBay
    • 6FC5357-0BB11-0AE0 | Siemens Accessories - MRO Electric
      Repair Benefits. MRO can restore your failed 6FC5357-0BB11-0AE0 to remanufactured condition and save you up to 75% compared to buy...
      MRO Electric
    • Siemens 6FC5357-0BB11-0AE0 Refurbished SINUMERIK 840DE ...
      * Condition. Seller refurbished. The item has been restored to working order by the eBay seller or a third party. This means the i...
      eBay
    • New and Used 6FC5357-0BB11-0AE0 Germany CNC System ...
      >= 50 pieces. *Taxes and import charges will be calculated at checkout. New and Used 6FC5357-0BB11-0AE0 Germany CNC System SINUMER...
      www.alibaba.com
    • Siemens 6FC5357-0BB11-0AE0, Used PLCH Packaging
      Customers understand and agree that proper software (firmware) licensing, maintenance and upgrades are subject to applicable manuf...
      PLC Hardware
    • 6FC5357-0BB11-0AE0 Siemens by PLC Direct
      6FC53570BB110AE0. Product Description, **spare part** SINUMERIK 840DE NCU 571.2 without system software memory: NC 0.5 MB, PLC 96 ...
      PLC Direct
    • 6FC5357-0BB11-0AE0 | Sinumerik 840D/DE NCU 571.2, Used (UPP)
      Siemens 6FC5357-0BB11-0AE0. 6FC5357-0BB11-0AE0; Siemens; Sinumerik 840D/DE NCU 571.2, 486DX4; 100 MHz Processor; Memory 0.5MB; Int...
      eBay
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    6FC53570BB110AE0 . Product Description, **spare part** SINUMERIK 840DE NCU 571.2 without system software memory : NC 0.5 MB, PLC 96 KB PROFIBUS DP prepared. Read more

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