Vector CanBoard and analog acq timing problem

Hi all,
when using a 6023E and a Vector CanBoardXL to measure analog and CAN signals (on two different clocks) the signal measurement does not start at the same time.
The analog signal is being measured for e.g. 2 sec and then the CAN messages appear. Still the time for the CAN message does not start at 2 but at 0. Is there any synchronisation (does not have to be very accurate, but a few secs is way too much)?


 Thx for your answer.
Attached is my DAC. Did you mean sth. like this with the start trigger?
bremseDom.DAC ‏29 KB