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Subject: NDStats plugin shows huge numbers for Eiger detector (areaDetector 3.7)
From: "Sobhani, Bayan via Tech-talk" <tech-talk@aps.anl.gov>
To: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Tue, 20 Aug 2019 13:48:54 +0000

I have an IOC running for an Eiger detector. The pixels are measured from -1.0 to 0.0. I think at least part of areaDetector recognizes this because when I set the Minimum and Maximum under “Display Controls” on the CSS screens, the picture looks good.

 

However, on the NDStats page, I see the minimum is 0, and the Maximum is 65535. I would expect the minimum to be -1.0, and the maximum to be 0. The Total is also a very large number (16407209312) – it was a much smaller number when I was running an older version of Areadetector (I think 2.7).

 

I thought the problem might be the Datatype – the DataType in the Stats plugin is UInt16. I attempted to change this to Float32 by writing to the Stats1:DataType PV, but it keeps reverting back to UInt16.

 

Any ideas what could be causing the numbers in the Stats1 plugin to be these huge numbers?

 

Alex


Replies:
RE: NDStats plugin shows huge numbers for Eiger detector (areaDetector 3.7) Mark Rivers via Tech-talk

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