No activity in CAN analyzer

Hello!

I'm wondering if I should be able to see any activity in CAN analyzer? 

I have a Spintend Ubox V2 75V 100A X2 and I can see that CAN is working as I have two ESCs under CAN devices and both motors are spinning when applying throttle which is connected to ESC A.

Still CAN analyzer is silent.

I have CAN status rate 1 set to 50hz, status 1 to 6 ticked. CAN baud rate 500k. CAN mode VESC. 

Do I have to do anything else to 'activate' broadcasting of CAN messages? 

I've also tried listening to any CAN messages using an ESP32 but with same result, no CAN frames are received. 

Any help would be greatly appreciated! 

EDIT: The vesc is on firmware 6.02.