Siemens logo 8 plc soft comfort v8 software siemens 6ed1058 0ca08 0ye1 the siemens logo soft comfort software update is designed to allow you to quickly and easily develop programmes for siemens programmable logic controllers using a drag and drop interface whilst developing the programmes you can make use of the offline simulation facility to ensure proper operation before putting it into a live operating environment it also produces comprehensive documentation for each project with comm