License Response File

License Response Files are not detected

The License Response File for TwinCAT 3 is located in the directory c:\twincat\3.1\target\license.
(The file path for TwinCAT 3 on devices with Windows Embedded Compact (Windows CE) is \Hard Disk\TwinCAT\...), and not c:\twincat\....

This directory may contain one or several License Response files; ideally, it should only contain License Response files that match the respective system (see: System ID).

License Response Files that are not currently required can be moved into a subfolder of this directory, for example, where TwinCAT 3 will no longer detect them.

Carry out the following actions if the TwinCAT 3 licenses cannot be detected correctly:

Delete all superfluous License Response Files in the c:\twincat\3.1\target\license directory or move them to a subdirectory.
Check whether the system ID (including the platform level) in the License Response File matches the system ID (including the platform level) of your TwinCAT 3 license dongle (or IPC, if the licenses are licensed to the IPC).

Example: System ID and platform level do not match.

License Response File 1:

If you are using a TwinCAT 3 license dongle, check whether the license dongle is set as "License Device".

The system ID of the TwinCAT 3 license dongle is shown on the License Device tab in the TwinCAT 3 license manager.

	The license won't work on this system if the platform level in the license file is lower than the platform level for the IPC!

	Several system IDs A TwinCAT 3 license dongle has no platform level of its own. This is dependent on the platform level of the connected computer. Since the platform level of the computer goes into the system ID of the dongle, a TwinCAT 3 license dongle can have several system IDs.