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The Siemens 6ES7972-0CB20-0XA0 is a PC Adapter USB module designed for the SIMATIC S7 automation system. This interface module facilitates the connection between a PC and S7-200, S7-300, or S7-400 programmable logic controllers (PLCs) via a USB interface, converting USB signals to RS-485. It is a reliable tool for programming, configuration, and diagnostics of Siemens automation hardware. Please note that this model has been superseded by the 6GK1571-0BA00-0AA0.
| Product Model | 6ES7972-0CB20-0XA0 |
| Manufacturer | Siemens |
| Current Consumption (typ.) | 100 mA |
| Power Consumption (typ. max.) | 2.5 W |
| Interference Immunity (50 Hz) | 30 A/m (to IEC 61000-4-8) |
| Operating Humidity (min/max) | 5% to 80% (at 25 degC, no condensation) |
| Storage Humidity (min/max) | 5% to 95% (at 25 degC, no condensation) |
| Tariff Code | 8537101190 |
The 6ES7972-0CB20-0XA0 was originally designed for older operating systems such as Windows XP, Vista, and Windows 7. For modern operating systems, it is recommended to use the successor model 6GK1571-0BA00-0AA0, which offers updated driver support.
This module acts as a communication bridge, allowing a computer to interface with the MPI or PROFIBUS port of a Siemens S7 PLC via a standard USB port.