RD - run display

This program displays information about current run.

This image is active: click any button in the window to see how it works.

• The first line in the window informs you about run number and when it was started.
• Exposition indicates what was the requested run time (astronomical one) or requested number of events in the run.
• Status shows a state of run. Possible values:
• RUNNING      DT (data taking process on VME host) is ready to accept data.
• PAUSED  data acquisition is paused.
• SC_ PAUSED data acquisition is paused by a slow control call.
• STOPPED   a previous run was completed.
• UNKNOWN  RD did not get a run status. It means that either DT was aborted or a problem with event distribution
• Alarms frame indicates how many alarm and warning messages was detected in a current burst, and how many bursts contained them during the running time of RD or from the last push of Reset button.
• More button serves to display additional information concerning alarms and warnings.
• Reset button clears accumulated statistics concerning alarms and warnings. To main window.
• Mode field shows in PHYSICS or TUNING mode you are working. The TUNING one is foreseen for the setup checks and automatic tuning, see RC_gui and DAQ description.
• Burst frame shows the number of burst in the run and in the last opened data file, the number of events in it including BOB and EOB events (and any other dedicated events), and a volume of data read-out from VME buffer memories.
• Collected frame contains the number of events in the run, the running time, and which fraction of requested run time or event number is expired.
• Memory status in burst frame indicates by a colour of rounded button a result of event checks performed by DT  in MSGC, DC (drift chamber) and FERA electronics.
• OVF - a VME buffer memory overflow was detected, indicated by yellow colour.
• Empty - there is no data in a VME buffer memory, indicated by yellow colour.
• Error  - an error was detected. The absence of data in Drift Chamber memories (if they are switched on) is treated as error. It may be also in the case when all memories do not contain data. The error indicated by red colour of rounded button.
• More button when pushed opens a window with more detailed information.
• Parameters field indicates which of parameters set was loaded for the current burst. It may be Standard, or Calibration N, where is N - a calibration number, or Unknown. The last means that DT cannot read-out a register with flags indicating the parameter set.
• Suppression field informs one what is the data suppression mode for the current burst. It may be default, user defined,  no suppression,  or   Unknown,see RC_gui and DAQ description.
• File field shows the current data file name and its size.
• If RD  is running on other computer than main DAQ host, this information is absent.
• If you selected option No write in RC_gui or there is a problem with open or write operations, if an alarm is set, a corresponding red coloured message is displayed in the field.
• Comment frame is the bottom one in the window and contains information extracted from a run header event.
• Exit button serves to exit from Run Display program. It does not affect on other DAQ processes. You can restart RD in any time. To main window.

The image is active: click Done button to come back.

The window displays information about alarm and warning messages. Hardware alarms are detected if there is a set bit in an input VME register during the burst. Software alarms are generated by a DAQ or monitoring
process. If an alarm was detected, the burst data are not recorded in the data file, but still distributed for monitoring processes. You can use RC_gui to select how a signal will be treated.

• Indicator button shows is a signal treated as alarm (yellow coloured button) and the burst data are not recorded in file or the recording is allowed (grey one).
• Number gives a bit value for the message.
• Green colour means that there was no problems
• Red colour appears when alarm was detected.
• Few words gives a meaning of alarm.
• Few digits shows how many alarms were detected.
• Done button closes the window.

The window is active: Close button returns to main window.

The window displays briefly a result of data checks done for each VME buffer memory. If a fatal error was met in one of memories, checks may be stopped and hence, the information about errors may be incomplete. A frame corresponds to each switched on a readout subsystem (MSGC, FERA and Drift Chamber) contains:

• Base address - a hexadecimal number in a rectangle to identify a memory.
• Number of data words is shown in a light grey rectangle. As MSGC modules contains four internal segments, four numbers are displayed for each MSGC memory. Colours of rectangle background and text displays a result of checks:

Background    Text      Status
Light grey    Black     Normal
Yellow        Black     Overflow
Red           White     Error
Red           Yellow    Overflow and error

• Subevent header are the last number in the string. If a fatal error was detected in a memory module, this number corresponds to the number the last well found subevent in the memory.
• Close button serves to close the window. If a run was stopped, the window will be closed automatically at the start of next run.
• Freeze button. The window is refreshing with each received burst. To forbid it you can use this button. It has two states: Freeze and Unfreeze.