The Yamaha AN1x Synthesizer mailing list

So for me it works. Its a little bit complicate to explain for me in english. German woult be easyer but i will try. I list single steps sure that you know most of them. But this way was for me successful.

Put the VST CTRLR in a MIDI Track. Inside open Device Data Base. Click on refresh. Scroll down to the anx1 panel.On the right side click download this item. Goto open Panel C:\Users\USERNAME\Documents.
Then goto Midi device Settings. Be sure that  MIDI in and out is turned off in Live. Then in Ctrlr go to Panel Edit Mode. On the right edit the Midi input and output. You have  to check the box 1. Panel wants VST input 2. Midi thru. Again click on Panel Edit Mode. Now in Live click on Configure turn a few knobs in Ctrlr now you have slider in live.Again click on Configure. In the Arrangment view record a few slider movments. So for me it works this way. 
If you want to write/build  your own Ctrlr Sysex string must be set  correct.
Hope this helps
 
Sven