camserver/NDStdArray latency mystery

[John Dobbins via Tech-talk <tech-talk at aps.anl.gov>]

First, apologies because this is about two old versions of areaDetector.

We have two Pilatus IOCs. One is areaDetector R1-9, Base 3.14.8 and one is R2-2 Base 3.14.12.4

Taking single images on the R2-2 version there is a latency of one image in the NDStdArray which is sent to Channel Access.  The image is also being written to a file and that receives the latest image however the file is being written by camserver (tvx-7.3.13-121212).  Note that these are manually triggered images, rate is not an issue.

It is possible that the IOC is received a delayed image from camserver.

How can I determine if the latency is between camserver/IOC  or  within IOC?

John Dobbins

Research Support Specialist

Cornell High Energy Synchrotron Source

Cornell University

www.chess.cornell.edu