Errors using SIF data plug in?

[noscho]

I am trying to open a SIF (somat informtaion file) file using the SIF data plugin found on the NI website.  It works great for files less than 1 GB.  When I try open files larger than 1 GB I get the following error.

Error Type: Access Violation

Error Address: 004E53E

Module Name: dacasr.dll

Thanks,

Noah

[Mavis]

Hi Noah,

I would guess the error was due to out of memory. SIF file could store I16 data and the DataPlugin needs to convert them to R64 in order to have factor and offset. The DataPlugin also has optimization for loading speed, requesting more memory.

Can I know your memory size?

Regards,

Mavis

[noscho]

Hi Mavis -

Thanks for confirming my thoughts of it being a memory issue.  The computer I am using has 3 GB of RAM.

Noah

[Mavis]

Hi Noah,

I would suggest to 'Selective Opening'  1 or more channels, instead of loading all of them at once.You can find the 'Selective Opening' button on 'File Open' dialog.

Or you can 'Register' the file and 'Expand' 1 or more channels that you are interested in.

Both will reduce the memory usage.

Hope this helps,

Mavis

[noscho]

Hi Mavis -

I tried your suggestion, but I am still having issues registering large files.  I tried to register one or two channels at a time and still was not working.  Diadem actually crashes when I tried to do this.  I have tried to do this through File > Open > Selective Open > select channels and through the Call DataFileLoadSel command.  Both have the same results. 

Any thoughts?  I am running version 11.1.

Thanks,

Noah

[Brad_Turpin]

Hi Noah,

Any chance you could send us one of those GB SIF files?  You'd need to post it to ftp.ni.com/incoming because of the size.  We could try to convert it to TDM for you on a computer with more memory.  If that works, then you'd know what you need to proceed.  What Operating System are you using?

Brad Turpin

DIAdem Product Support Engineer

National Instruments

[noscho]

Hi Brad -

I uploaded sif_sample.sif.  Let me know if you have any trouble with the file. 

Thanks,

Noah

[Brad_Turpin · Accepted solution]

Hi Noah,

I was able to drag and drop your SIF file into my DIAdem 2011 without trouble-- I have a Win7 64 bit laptop with 8 GB of RAM.  I converted it to a TDMS file and zipped it up and reposted it to the NI outgoing site.  See if you can work with this file on your computer any better:

ftp.ni.com/outgoing/sif_sample_TDMS.zip

Brad Turpin

DIAdem Product Support Engineer

National Instruments

[noscho]

Hi Brad -

I was able to find a computer with hardware more comparable to what you have.  I had no troubles opening the original sif file on it.  Thanks for your help.

Noah

[shuohuang]

Hi there:

I am also working on this .sif data plugin but I dont even know how to use it.

I have downloaded the plug in and installed it but then how can I read the .sif file? Hope you can help me or if you can post your code as an example for me it will be cool.

many thanks