The certificate proves that TR-Electronic supports DRIVECLiQ

It has been written in black and white since the beginning of September 2013: TR's compact 36 mm all-rounders also support DRIVECLiQ. The 36 mm multiturn rotary encoders are clearly at home in SINAMICS and SINUMERIK applications. They are fully integrated into the Siemens service concept for these two product lines, so that support for these devices is not just provided by TR technicians.
With compact 36 mm housing diameter, the CMV36 rotary encoders can be used in situations not previously possible for multiturn rotary encoders with DRIVECLiQ. Space-saving but high-density M12 plug connectors are used for the connection. The CMV36M is a real absolute rotary encoder which operates completely without counters, batteries etc.. It has a resolution of 4096 steps per revolution and acquires 4096 revolutions. The aluminium housing can withstand the standard ambient conditions in industrial environments with a protection class up to IP 54. In situations where only a very small amount of space is available, the slip-on hollow shaft (blind shaft) saves a few more precious millimeters.
Ideal application environments are compact devices and machines, for example in medical technology and in complex measuring and inspection machines.

You can view the certificate here.
You can find an overview of the CMV36 rotary encoders here.