Siemens SIMATIC IPC477D Operating Instructions Manual page 50

Mounting and connecting the device
3.1 Preparing for mounting
COA label
Microsoft Windows "Product Key" from the "Certificate of Authenticity" (COA):
The COA label is present only when Windows Embedded Standard 7 or Windows 7 is
installed.
● COA label of a device with the Windows Embedded Standard 7 operating system
● COA label of a device with Windows operating system
50
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 11/2016, A5E31347228-AF