Summary: 1.This USB-PLC programming cable is the ideal replacement of 6ES7972-0CB20-0XA0. 2.It’s the newest USB to Profibus/DP or USB to MPI adapter for programming 300/400 CPU. (3 in 1) DP/PPI/MPI protocols integrated in 1 USB adapter cable, 3.For transfering the program/data between computer and PLC S7 200 /300/400/ET200, OP/TP touch panel. 4.Support the programming of 840D CNC system. 5.USB to RS485/DP/PPI/MPI programming cable, USB male to DB9 male adapter, With LED communication indicators. 6.High speed up to 187.5kbps. 7.No driver installation required for STEP 7 V5.5 and above. 8.Support Windows 98/XP/Vista/2000/7/8/10/11. 9.Safety and protection: The desktop and PLC are optically isolated by the embedded optical coupler. PTC self recovery fuse is used to protect the internal circuit under overvoltage, overcurrent and short circuit. The shell has soft rubber protection, anti pressure and anti falling. 10.Operate 99% performance of the original one. 11.Programming software : STEP7 Micro/WIN V3.2 and above 12.Compatible with: USB V1.1 and USB V2.0 13.UART data format, data bit: 8, stop bit: 1 and 2, parity bit: odd/even/no parity 14.Converter Cable: USB to RS485/DP/PPI/MPI programming cable, USB male to DB9 male adapter, With LED communication indicators. Up to 187.5kbps. 15.Length: 2.5 M Important Note: No driver installation is required for STEP 7 V5.5 to work with this cable, in other words, for Step7 V5.5 or above version, the driver is built in the programming software.