To start a data taking run, click the
button. After a few
seconds a
button should appear. Click this button.
After is pressed, a ``Run Info'' form will
pop up. This form should be updated to reflect the running conditions of
the run about to be started. The form is filled with default values, but
may be overwritten with the values from the last run by clicking on the
button. The current values may also be save as default
values if several runs with similar conditions are expected. When the
button is clicked, the values held in the form will be written
to the data file and the run will be started.
Please write sensible comments in the ``Comments'' field. The first line of the comments will appear in the title of the electronic log book entry made for the run, so it should be reasonable descriptive.
To modify the layout of this form, edit the file
~/$DAQROOT/coda2/runparms.default
, consulting an expert if necessary.
To pause/resume a run, use the /
buttons on
the pause GUI.
A run will end if either you click the button or the event
limit or the data limit (whichever is first) is reached. Event and
data limit can be specified in the
Run Control
GUI. Enter a
number in the appropropriate field and hit return
. Our CODA
system has been configured to allow runs with sizes greater than
2GByte in size. This is done by automatically closing the data file
and opening a new file. Thus a long run will be split into several
segments. The run filenames have the form e93038_XXXXX.log.N, where N
is the segment number, starting with 0.