Basic Steps

1. Make sure that the frontend system (TDAS at the time of this writing) is running.
2. Start your PAW session as usual.
3. If you want to change HV and/or CFD settings you have to open the online database:

   da/init fopi_dbase

   This works on VAX/VMS only !!
4. For analysis try to open the event data path with

   raw/input/online <frontend-node>

   or, short form,

   ra/i/o <frontend-node>

   where <frontend-node> is usually E64PIB. A message like

   connection refused

   means that for some reason the data acquisition is not reachable (TDAS not running, not enough memory on the frontend computer, ...). Ask TDAS people for help.
5. To analyze data type

   ra/a <number-of-events>

   and you will get that number of events. However, you will get only a sample of all events, the actual percentage is printed after completion. In addition, this command is blocking if the data acquisition is blocking. A message like

   pipe broken error

   indicates trouble with the data acquisition: TDAS crash, not enough memory on the frontend computer, ... Ask TDAS people for help.
6. On VAX/VMS and MVS you have the opportunity to abort an event loop cleanly with CTRL-A (or its emulation), provided the execution is not blocked by the data acquisition system.