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| Place of Origin: | U.K. |
| Brand Name: | Siemens |
| Certification: | COO & COC |
| Model Number: | 6ES7901-3DB30-0XA0 |
6ES7901-3DB30-0XA0 SIEMENS SIMATIC PC/PG programming cable USB/RS485 converter
Siemens programming communication cable 6ES7901-3DB30-0XA0 is a high-performance USB-to-RS485 (PROFIBUS/MPI) interface adapter, specifically designed for connecting Windows PCS to Siemens automation equipment. This cable supports USB 2.0 interface, is equipped with built-in photoelectric isolation and protocol conversion chips, and can be stably connected to S7-200 SMART PLC and LOGO! Intelligent logic modules, SINAMICS frequency converters (such as V20, G120), HMI panels and some older S7-300/400 systems are used to achieve program download, online monitoring, parameter configuration and diagnosis.
Core Features
USB to RS485/MPI/PROFIBUS interface: Connect to A PC via a standard USB-A interface, with a 9-pin Sub-D (male) interface at the other end, compatible with PPI/MPI/ free port communication of Siemens PLC.
Built-in photoelectric isolation (500V AC) : Effectively prevents ground loop interference and voltage surges, ensuring the safety of PC and PLC.
Automatic baud rate recognition: Supports multiple communication rates from 9.6kbps to 12Mbps, and automatically matches device Settings;
Technical parameters
| Model | 6ES7901-3DB30-0XA0 |
| - PC side | USB 2.0 Type-A (Cable integration on the female socket side) |
| - Device side | 9-pin Sub-D male connector (conforming to PROFIBUS/MPI standard pin definitions) |
| Communication protocol support | PPI, MPI, Freeport, USS, Modbus RTU (Master/Slave) |
| Maximum communication rate | 12 Mbps (MPI/PROFIBUS), 115.2 kbps (PPI/USS) |
| Electrical isolation | 500 V AC (between USB and RS485) |
| Terminal resistor | Not built-in (needs to be enabled on the bus terminal device) |
| Cable length | Approximately 2.5 meters (flexible PVC sheath) |
| Operating temperature | 0°C to +55°C |
| Certifications | CE, RoHS, FCC |
Product details pictures
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