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DSC Module : Periodic Custom I/O Server with Data Acquisition

Hi,

I've followed the instructions to build a Periodic Custom VI based I/O server with a single continuous voltage acquisition with the cDAQ 9172 acquisition card.
I deploy the server but when I try to monitor the variables, eg Ymax, I don't get the proper value, there are no change, Ymax is always null.
I've tried to replace the data acquisition with the express simulate signal vi and it works.
I put my labview project in attached file.
So why the server doesn't update properly the values with the data acquisition ?

Thanks,

Regards,

Clement
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