Ian i have to correct you on that..
The atem outputs Control CCU and Tally data on
ALL PGM and AUX outputs.
This data is not embedded on Multiview and scaled down outputs.
The function in the software you can select which aux to assign for control..
Here where it gets cool>> This output will automatically switch to the camera you select in the CCU panel.
So if you touch the lever of Cam5 this output will switch to Cam5. (this is for the shader to have the camera he is touching to get on his control monitor.
In big OBV's this is done with the CCU panels all have a button under the lever. If you push the lever it makes a contact which then have to send a control signal to the router to switch a camera on the Shader his monitor. So this is all done inside of the atem
About CCU data trough the Atem Camera converter, Make Sure you have pressed the PGM button on the camera converter. It only works if the SDI output on the Camera Converter has PGM image on the SDI outputs.. When you boot the converter it normally starts up with the camera image on the SDI output.
Second make sure your camera is set to the right ID. If it is Cam 5 / input 5 on your mixer. Make sure it has ID 5 in the camera. You can look this up in the menu.
But the quick way to test that is connecting the camera with a short lead to the atem and cycle trough your PGM bus.. It should light a red tally when it gets tally data. If it is red when you select that channel your good.. But if you have connected it to Cam 5 and when you push PGM 1 and it lights red you have to change the ID of the camera.