PLC Programming Cable 6ES7972-0CB20-0XA0 USB-MPI AMSAMOTION

This USB-MPI PLC Programming Adapter Cable is a high-quality replacement for the Siemens 6ES7972-0CB20-0XA0 (PC Adapter USB), designed to connect a computer to Siemens SIMATIC PLCs for programming, monitoring, and data exchange. It bridges your PC's USB port to the PLC's RS485 / MPI / PROFIBUS network, allowing you to upload, download, and debug programs directly from SIMATIC STEP 7 / SIMATIC Manager software.

The adapter supports the complete Siemens S7-200, S7-300, and S7-400 PLC families and is compatible with all three major Siemens communication protocols: MPI (Multi-Point Interface), PPI (Point-to-Point Interface), and PROFIBUS DP. This makes it a versatile, all-in-one programming solution suitable for a wide range of industrial automation setups.

Connection is simple and modern: the adapter installs as a native USB device using the original Siemens driver, so there's no need to create or configure a virtual COM port (and with STEP 7 V5.5, no separate driver installation is required at all). This eliminates the headaches of older serial-based adapters.

The cable is 5 meters long, giving you plenty of reach between your laptop and the control cabinet, and features a built-in LED communication indicator that shows data activity at a glance. It supports the full range of baud rates — 9600, 19200, 45.45K, 93.75K, 187.5K, 500K, and up to 1.5 Mbps — with automatic baud rate adaptation on the MPI port, so it self-configures to match your network.

Built for broad compatibility, the adapter works with Windows 2000, XP, Vista, and Windows 7 (32-bit and 64-bit).

Important notes:

• You must install the original Siemens driver to enable PG/PC operation (except with STEP 7 V5.5, which has built-in support).
• This is a compatible replacement for the genuine Siemens part 6ES7972-0CB20-0XA0; verify your STEP 7 software version and OS before use.

Specifications

• Compatible Siemens Part: 6ES7972-0CB20-0XA0 (PC Adapter USB)
• Brand: AMSAMOTION
• PC Interface: USB (64-bit USB interface)
• PLC Interface: RS485 (MPI / PROFIBUS / PPI)
• Supported PLCs: Siemens S7-200 / S7-300 / S7-400
• Supported Protocols: MPI, PPI, PROFIBUS DP
• Supported Baud Rates: 9600, 19200, 45.45K, 93.75K, 187.5K, 500K, 1.5 Mbps
• MPI Baud Rate: Auto-adaptive (19.2 Kbps / 187.5 Kbps and more)
• Cable Length: 5 meters
• Indicator: LED communication indicator
• Software: SIMATIC STEP 7 / SIMATIC Manager
• Driver: Original Siemens driver (not required for STEP 7 V5.5)
• OS Support: Windows 2000 / XP / Vista / Windows 7 (32-bit & 64-bit)

Applications

• Programming Siemens S7-200/300/400 PLCs
• Uploading and downloading PLC programs
• Online monitoring and debugging of PLC logic
• Industrial automation system commissioning
• Maintenance and troubleshooting of control systems
• MPI / PROFIBUS network communication
• Factory and machine control programming
• Educational and training labs for PLC programming
• System integration and field service work