USB-CABLE is a programming cable that uses the USB interface to establish serial communication and convert peripheral port signals. The cable enables programming through the USB interface connector and a serial peripherals signal converter, under computer control, simulating the computer’s USB interface to emulate a traditional serial (COM) port—allowing compatibility with standard programming, communication, and monitoring software. Power is supplied via the USB port and the controller’s programming port. This USB-CABLE features optical isolation, making it suitable for use with controllers—especially in industrial environments with high electromagnetic interference and vulnerable communication ports. Built-in circuit protection ensures safe and reliable system operation. Compared to first-generation adapters, this cable adopts a compact, modern design with a high-speed communication micro-integrated chip and a 6-pin square connector on the PLC side—offering improved portability, stability, and performance. Purpose: Compatible with Siemens series PLC programming. Length: 3 meters. Please verify the interface type before ordering: - PC-CABLE: 9-pin female RS232 connector (PC side), 6-pin square connector (PLC side). - USB-CABLE: USB-A connector (PC side), 6-pin square connector (PLC side). Color: Black. Material: PVC jacket with copper conductors. Package Contents: 1 × PLC programming cable. Note: Color may vary slightly due to lighting conditions and display settings. Measurement tolerance: ±1–3 cm.