Signed TwinCAT user certificates for delivery without test mode

	System requirements - Min. TwinCAT 3.1 Build 4024 - Min. Windows 10 or TwinCAT/BSD (on the target system)

With TwinCAT Build 4024, Beckhoff offers existing customers the issuing of a "TwinCAT 3 OEM user certificate", which can be used for signing TMX files created with TwinCAT 3 in C++.

This certificate requires secure validation of the applicant data, since it is used in the Windows environment. TwinCAT 3 user certificates must therefore be officially ordered for validation of the address and contact data, and are only issued to existing Beckhoff customers.
Order number: TC0008
The issuing of this TwinCAT 3 user certificate is free of charge.
Directory for saving the certificate: C:\TwinCAT\3.1\CustomConfig\Certificates

	The TwinCAT 3 user certificate is not required for using the TwinCAT 3 TMX files The TwinCAT 3 user certificate is used exclusively for the one-time signing of the TMX files and is not required for the use of the TMX files signed with it.

	On which computers is the TwinCAT 3 user certificate TC0008 required? The TwinCAT 3 user certificate should be located exclusively on the engineering computer on which the TMX files are signed - i.e. NOT on each target system.

Validity of the TwinCAT 3 user certificate

The validity of the TwinCAT 3 user certificate is limited to two years for security reasons.

	What happens if the certificate has expired? You can no longer sign new TMX files. However, the use of already signed TMX files is still possible without any restrictions.

You can apply for a renewal of your certificate before the expiry of the two years (and even after that).

To extend a TwinCAT 3 user certificate, the same process applies as for requesting a new certificate. In this case, the certificate must also be ordered (the order numbers for a certificate extension are the same as for a new certificate request).

In contrast to a new certificate, you do not generate a new OEM Certificate Request File but send your existing certificate to the Beckhoff certificate section for renewal. Please notify us in the email that this is a certificate extension and not a new issue. Otherwise, the same criteria apply regarding the content of the email as for the application for a new certificate.

The existing certificate receives a new expiration date, is then re-signed and is valid for another 2 years.

The newly signed certificate is thus fully compatible with the original version.

Further Information