> > > Dear all
> > > 
> > > We just started our beam time at ILL and just found yesterday that for certain 
> > > settings of our detector the data is not saved into the .mid files. Running "mdump 
> > > -l 10" online we see the data coming in as they should. Nevertheless, if we run 
> > > "mdump -x runXXXXXX.mid" offline, the data file has no events and the banks are 
> > > missing. Any ideas where the data could go lost?
> > > 
> > > Thanks in advance,
> > > Ivo
> > 
> > Have you checked 
> > 
> > /Logger/Channels/0/Settings/Event ID = -1
> > /Logger/Channels/0/Settings/Trigger mask = -1
> > 
> > If these settings are not -1, they filter the data stream for certain events and trigger 
> > masks.
> > 
> > Stefan
> 
> Good morning Stefan
> 
> Both set to -1. We only have one logging channel. If we run a sequence with a few runs and the 
> same settings, sometimes data is in the .mid file and sometimes it is not.
> 
> Best,
> Ivo 


Hi,

If the online mdump is correct (by default using the -1, -1 filter), the data are in the main SYSTEM buffer. 
Similar to the dump -
The fact that the analyzer doesn't see the banks would indicate a buffer handling issue as mentioned by Stefan.
To confirm, I would check at the end of a run that the sum of the equipment "events sent" matches the logger "Events written".