Product Overview: 6ES7901-3DB30-0XA0
The Siemens 6ES7901-3DB30-0XA0 is the essential **USB/PPI Multi-Master Programming Cable** for the SIMATIC S7-200 PLC series. It connects the USB interface of a programming device (PC or Laptop) to the PPI (Point-to-Point Interface) port of the S7-200 CPU, enabling program upload, download, and online monitoring.
Technical Specifications
| Interface PC | USB 2.0 |
| Interface PLC | RS485 (PPI) |
| Cable Length | 5.0 meters |
| Protocol | PPI / Multi-Master PPI |
Why Buy the Original?
Unlike cheap clones, the original **6ES7901-3DB30-0XA0** supports **Multi-Master** communication. This means it can reside on a network with other masters (like HMI panels) without disrupting communication. It automatically detects the baud rate (9.6 to 187.5 kbit/s) and provides galvanic isolation to protect your PC’s USB port from potential ground loops or voltage spikes on the plant floor.
Compatibility
Designed for use with STEP 7 Micro/WIN software. It is compatible with Windows XP, Windows 7, and Windows 10 (ensure correct drivers are installed). It allows for connecting to the S7-200 even while an operator panel is connected to the network.
