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Product Overview
This USB cable establishes a direct programming connection between a PC and SIMATIC S7 controllers. It features a standard USB Type-A connector on one end and an MPI/PPI interface on the other. The cable measures 3 meters in length for flexible workstation positioning. It weighs approximately 150 grams for easy storage in laptop bags. You can use this cable with all S7-200, S7-300, and S7-400 PLC families. The integrated converter chip handles the electrical translation between USB and RS-485 signals.
This programming cable supports baud rates up to 187.5 kbps for fast program transfers. It also provides galvanic isolation to protect your PC from industrial ground potentials. The cable draws its operating power directly from the USB host port. You can connect and disconnect the cable without restarting the programming software. This device works seamlessly with STEP 7 Micro/WIN and TIA Portal environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Programming Cable |
| Model | 6ES7901-0AE00-0XA0 |
| Host Interface | USB 2.0 Type-A |
| PLC Interface | MPI / PPI (RS-485, 9-pin D-sub female) |
| Cable Length | 3.0 meters |
| Supported Baud Rates | Up to 187.5 kbps |
| Galvanic Isolation | Yes (1,500 V DC) |
| Power Supply | 5 V DC (via USB bus) |
| Current Consumption | Max. 100 mA |
| Compatible PLCs | S7-200, S7-300, S7-400 |
| Software Support | STEP 7 Micro/WIN, TIA Portal, WinCC |
| Operating Temperature | 0 °C to 50 °C |
| Storage Temperature | -20 °C to 60 °C |
| Cable Outer Diameter | 5.5 mm |
| Weight | Approx. 150 g |
Key Features and Benefits
This cable eliminates the need for a dedicated PC adapter card in modern laptops. Its shielded construction ensures reliable communication even in electrically noisy environments. The built-in LED indicates link activity and power status during programming sessions. You can perform online diagnostics and program downloads without additional hardware. The compact design travels easily for on-site service visits.
Installation and Operation
You simply plug the USB end into your computer and the MPI end into the PLC. Windows will automatically detect the cable as a standard virtual COM port. The programming software then recognizes the PLC through this virtual interface. You can leave the cable connected while operating the machine online. For extended distances, you can combine this cable with MPI repeaters. This configuration allows programming from a safe distance in larger facilities.
Typical Applications
Maintenance engineers use this cable for field firmware updates on production equipment. System integrators rely on it for commissioning new S7 controllers during installation. The cable also serves for troubleshooting and runtime monitoring activities.