PXI-6682 + multiple Serie S & M cards cause timestamp delay

I'll try to give as much info as possible and hopefuly someone will have an answer to this problem.
Language: C++
Introduction:
1- I have (1) PXI-6682 (Timing card), (6) PXI-6143 (Serie S (8 analog inputs each)), and (2) PXI-6224 (serie M (8 analog inputs each))
2- Every card is a task (so that's 8 tasks
3- Every card is in sync (they give data equal...more or less... to one another
PROBLEM:
1- Timestamp is off by up to 200 ms (not drifting...simply off by a set number of ms)
2- Every call to niSync_ReadMultipleTriggerTimeStamp gives me a timestamp off by that much
I don't have any info on how the tester managed to know it was 200 ms off, my theory is he tested it with some older equipment to validate the new one

Hello there,
Kindly help me with DAQmx Time stamp related problem as described below.
Setup : PXI 6133 Qty 4 (Slot 3, 4, 5, 6)
PXI 6255 Qty 1 (Slot 2)
PXI 6255 doing a Continuous Acquisition at 1 mSec Sampling and 1000 samples/iteration.
PXI 6133 doing a Ref Triggered Acquisition at 1 uSec Sampling interval and Pre and Post Trigger samples of 100000 Samples each.
Test : PXI 6133 - Reference Trigger Configured on PFI 1 line of First PXI 6133 card.
input Signal given to AI 0 OF First PXI 6133 card.
All PXI 6133 cards are included in a single task.
PXI 6255 - Input given to Channel 0 AI
External Function generator - One Digital Trigger generated of width 50 mSec High Interval.
Another signal generated for input to above cards. (Square wave of 10 mSec Period - 5 periods generated on the rising edge of trigger)
So It means When I acquire square wave in my waveform, I can consider rising edge of square wave as a rising edge of trigger (as both signals are generated aligned from external function generator)
I have attached Screenshots and programs I have used for that.
Problem: As both singal are generated at a same event, Both 6133 and 6255 should acquire that singnal at a same timestamp.
I have also read related documents about timestamp but I could not succeeded to find any link in this.
I am getting square wave 100 msec earlier in 6255 then of 6133.
If I used only single card of 6133 then that inaccuracy of 100 msec is shifted to 25 msec.
Please help me as soon as possible.
Attachments:
Timestamp mismatch between 6133 and 6255.docx ‏377 KB
Timestamp mismatch in 6133 & 6255.zip ‏70 KB

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