Experimental Physics and
Industrial Control System

Hi John,

Here is what is supposed to happen:

1)      You press Acquire

2)      ADPilatus sends a message to camserver to collect an image

3)      camserver collects an image and writes a file

4)      ADPilatus reads the file that camserver just wrote into an NDArray

5)      ADPilatus calls the NDPluginStdArrays plugin with that NDArray

6)      The Channel Access client receives the array and displays it

Can you define what you mean by “latency”?  Do you mean that the Channel Access client is displaying the previous image, not the one that was just collected?  If you open the file that camserver wrote is it correct?

Are there any messages on the IOC console?

Is the IOC running on the same machine as camserver?  If not, are their clocks well synchronized?  There is time-stamp checking on the files as ADPilatus reads them to make sure it is not reading an “old” file, but rather one that was just written.

Can you turn on asynTrace debugging in ADPilatus to see what is going on?

Mark