Siemens SINUMERIK 840D sl Commissioning Manual

3.2.1 This is how you backup the license key
Backing up the license key on a USB storage medium
Procedure:
1. In the main menu, select the menu item "Backup NCU Software and Data".
The following menu is displayed:
Figure 3-3 Backing up licenses
2. Select the menu item "Backup license key to USB memory stick".
The following menu is displayed:
Service and diagnostics
3.2 Backup license
NCU operating system
70 Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based