Synchronization of 2 CAN Ports with an M-series DAQ Card

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Hi all I am trying to synchronize 2 CAN ports (each 2-series card in different PXI slot of same chasis) with a PXI-6255 DAQ Card. I tried the example code by NI. little modified to see the trigger frames of both the ports. they failed to match (differe by few msec) i am attaching the code here... can anyone tell me why they dont match? 


2 CAN Cards 1 DAQ (MSeries) Card Input Synchronization.llb:
http://forums.ni.com/ni/attachments/ni/30/3692/1/2 CAN Cards 1 DAQ (MSeries) Card Input Synchronization.llb

[DirkW]

Both CAN ports are handled by one onboard processor. Since he can timestamps, all incoming messages sequentialy you can see some ms difference. But you can assume that both ports are synchronized and just remove the offset for thye second port. DirkW