Siemens 6ES7972-0CB20-0XA0 PC Adapter USB

The Siemens 6ES7-972-0CB20-0XA0 PC Adapter USB enabled reliable communication between SIMATIC S7-200/300/400 PLCs and engineering PCs. With a 5m USB cable and support for legacy Windows systems, it was a widely used tool for commissioning and programming older automation systems.

Though now discontinued, its successor – the PC Adapter USB A2 (6GK1571-0BA00-0AA0) – offers improved compatibility and continues to support both MPI and PROFIBUS connections.

Technical Specifications

Model: 6ES7972-0CB20-0XA0 Siemens
Type: PC Adapter USB for S7-200/300/400 and C7 CPUs
Connection: USB 2.0 (5m USB cable included)
Supported Operating Systems: Windows XP / Vista / Windows 7 (32/64-bit)
Weight: 0.491 kg
Dimensions: 17.40 × 24.30 × 4.30 cm

Function & Application

• Purpose: USB adapter for connecting engineering systems (PG/PC/laptop) to SIMATIC S7 controllers via MPI or PROFIBUS
• Use Case: Commissioning, diagnostics, and programming of legacy Siemens S7 PLCs
• System Compatibility: Compatible with S7-200, S7-300, S7-400, and C7 series

Product Lifecycle Status

• Lifecycle: PM500 – Discontinued Product
• Discontinued Since: 01.06.2015
• Replacement Model:
  • [6GK1571-0BA00-0AA0 – PC Adapter USB A2 (Successor)]
    • Includes USB 2.0 and MPI/PROFIBUS support
    • Compatible with Windows XP, Vista, Windows 7, and higher

Delivery & Physical Information

• Packaging Quantity: 1 Piece
• Country of Origin: Germany

Product Compliance & Classification

• RoHS Compliance: Since 05.11.2007
• Product Class: D – Made to order, not reusable
• Commodity Code: 85176200
• Catalog ID: ST9-E5
• Product Group: 4227
• Group Code: R111
• UPC: 662643229493
• EAN: 4019169101325

Key Features & Benefits:

✅ Direct USB Communication – No additional power supply needed.

✅ MPI / PROFIBUS Support – Ideal for S7-200, 300, 400, and C7 CPUs.

✅ Windows XP to Windows 7 Support – Broad OS compatibility.

✅ 5m USB Cable Included – Ready for field use.

✅ Successor Available – PC Adapter USB A2

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