Three-Position Enabling Device not showing up

Technical Questions
1

Hello,
i am using an old UR10 with CB3 Controller. In addition to the Robot teach panel i am using a cover with a Three-Positions Enabling Device.
My problem is that this Three-Position Enabling Device is not showing up in my robot safety so that i cant configure it. Could this be due to a hardware failure of the Three-Position Enabling Device that it is just showing up at the robot when one Three-Position Enabling Device is recognized? Or could my robot configuration be wrong, so that the Three-Position Enabling Device is not showing up?
I already tried updating the robot to the new software version 3.15.

Best Regards

2

Have you tried looking at this?
3PE CB3 Article
I have not used a 3PE but i found this article from UR and may be what you need to look over for setting it up.

3

Hello,
thanks for your help.
It seems that the problem is that our safety processor is older than the needed version.