how to acquire simultaniously analog channels from scxi with daq card

[Balaji_DP]

dear sir,

Hardware Configuration:

NI - PXI - 1052 (CHASIS)

NI - PXI - 8186 (EMBEDDED CONTROLLER)

NI - PXI - 4472B (DSA)

NI - PXI - 6221 (MDAQ)

SCXI - 1520 (STRAIN)

Labview 7.1 RT

 I am doing project with above hardware Configuration. As for my hardware for SCXI - 1520 Communicator hardware is NI- PXI - 6221, Problem arising  i cant acquiring simultaniously from scxi and 6211 analog inputs. acually  all the signal conditioning systems analog inputs are mapped with daq card of analog inputs. give for soultion to acquiring simultaniously from above two hardware.

i observed one error when i configuring two hardware simultaniously  - " Specified resource is reserved for opperation "

another problem , as im doing data logging for 10,000 samples for each 8 channnels from NI - PxI - 4472B and SCXI - 1520 as a time base. for example if datalogging performed as 5 min.  the file size will be more than 5MB. it cause cant able to read the files. for datalogging i doing file write and read option from labview. give solution for bulk data logging using labview. if possible to do compress file.

Regards,

Balaji DP

Application Engineer,

Reckers Automation Pvt., Ltd.,

New Delhi

[MissyS]

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Regards,