USB-CABLE is a programming cable which use the USB interface to achieve the serial connection and the conversion of peripheral port signal. Cable programming is provided theough the USB interface connecter and serial peripherals signal converter programming,under the control of computer operation,simulating the computer's USB interface to traditional serial(commonly known as COM port),thus using the current programming software, communicating software and monitoring software.The work power of the cable comes from USB port and programming port of LOGO controller. USB-LOGO CABLE is photoelectric isolated,can be applied to for LOGO Controller,especially the industrial fields with greater interference and easily damaged communication port. All kinds of protection measures in the circuit give promission to the safe operation of the system. USB-LOGO cable remove the 1st generation heavy adapter appearance and apply the design with the high-speed communication micro-integrated chip buit-in 6pin square shape port side. It is more protable and founction more stable &powerful. Purpose: Suitable for Siemens LOGO Series PLC programming cable Length: 3meters Pls check the interface before your order the product: PC-CABLE: PC side is 9pin female plug RS232port, PLC Side 6pin square shape USB-CABLE: USB port connect PC, PLC Side 6pin square shape. Colour: black Material: PVC+copper wire Package Contents: 1 x PLC programming cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.