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Siemens6GK1571-0BA00-0AA0 is a Siemens SIMATIC series PC adapter USB A2, used to connect programming devices (PG/PC) or laptops to a PROFIBUS or MPI bus network via a USB interface for programming, debugging, and diagnostics of SIMATIC S7 series PLCs.
It includes a 5-meter USB cable and a 0.3-meter MPI cable, and is directly powered using the USB 2.0 standard. Its lifecycle status is PM300 (valid product), and it is still in normal supply.

| Brand |
SIEMENS |
| Model / Part Number | 6GK1571-0BA00-0AA0 |
| Interface | PC side: USB 2.0 (Type B connector); PLC side: PROFIBUS/MPI (9-pin Sub-D connector, RS485) |
| Transmission Rate | 9.6 kbit/s to 12 Mbit/s |
| Power Supply | USB powered, 5V DC, 0.2A max |
| Protection Rating | IP20 |
| Operating Temperature | 0 °C to +60 °C |
| Dimensions (H x W x D) | 26 x 58 x 105 mm |
Q: What are the main applications of this adapter?
A: Primarily used in industrial automation environments. Engineers use it to connect their laptops to the PLC control cabinet for program uploading/downloading, online debugging, real-time monitoring, and troubleshooting. Commonly used in industries such as automotive manufacturing, packaging machinery, and metallurgy.
Q: Can it be used for programming communication with an S7-200 PLC?
A: Yes, but careful settings are required. It was originally designed as a replacement for the older adapter (6ES7972-0CB20-0XA0). When communicating with the S7-200, the standard setting under the PROFIBUS protocol must be selected in the PG/PC interface settings, not the DP mode.
Q: Which programming software and operating systems does it support?
A: It supports Siemens STEP 7 and TIA Portal software. Regarding operating systems, it is officially confirmed to support Windows XP/Vista/7 (32/64-bit) and later versions.
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