Experimental Physics and
Industrial Control System

Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> · Sun, 9 Aug 2020 01:49:44 +0000

Hi Kidman,

areaDetector has a plugin to write HDF5 files. It has lots of nice features like compression, ability to store other PVs for metadata, etc.

You just need to take your 40 1M 1-D waveform records and either send them one at time to an NDArray, or make a 1M x 40 2-D NDArray. Euther could easily be done using a little SNL program and NDDriverStdArrays.

Mark

Sent from my iPhone

On Aug 8, 2020, at 3:41 PM, Ha, Kiman via Tech-talk <tech-talk at aps.anl.gov> wrote:

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Hi All,

NSLS-II LLRF system has a new circular buffer for the LLRF system oscilloscope function.
A single waveform size is 1.8 M point and a total of ~40 PVs.

Does anyone have and any EPICS HDF client program for waveform PVs to HDF5 files?
Our application is simple steps if the beam dump caused? Read waveforms and write HDF5 files to a specific directory (DD/MM/YYYY).

Thanks,
Kiman

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System