Revision as of 08:36, 28 June 2013

DAQ Hardware

Electronic Map of Mott Crates (January 29, 2013):

Media:ElectronicsMap_20130129.pdf

Media:ElectronicsMap_20130129.ppt

Cabling of FADC, Scalers, and TDC (January 29, 2013):

Media:Cable_20130129.pdf

Media:Cable_20130129.pptx

DAQ Timing (January 29, 2013):

Media:DAQ_Timing_20130129.pdf

Media:DAQ_Timing_20130129.pptx

How to run CODA

From an accelerator machine: ssh -X idaq@opsmdaq0 (Note: idaq is the injector DAQ account and uses ssh authorized_keys for login - no need to enter password) and open few xterm & windows.

 xterm 1: telnet iocmdaq1

 xterm 2: msqld (the CODA msqld database is usually running unless opsmdaq0 was rebooted)

 xterm 3: platform

 xterm 4: codamaster

Choose the configuration: Mott_Sample

When the CODA MASTER panel appears, select Config => Enable Buttons.

Select ET System, Event Builder, Event Recorder and Run Control. After doing that if you will click on Get Status you will find status of ER1, EB1 and ROC1. All buttons must be green.

Select Run Control and the main CODA panel will appear.

Start and Stop a Run

From Run Control panel, select in the following order:

Sessions => inj
Configurations => Cool => Mott_Sample
Platform => Connect
Configure
Download
Prestart
Start

At the end:

Stop

and if you want to apply a change or you need a new configuration:

Reset

and start from number 5.

Mott DAQ iocmdaq1

There are two ways to access the Mott DAQ ioc:

From an accelerator machine: telnet iocmdaq1
From an accelerator machine: ioc_concole iocmdaq1. Here you need to enter a password to this cannot be done with the idaq account.

Online Monitoring

Scalers: xscaler

"xscaler" is a graphical display of the scalers from the Mott DAQ.

If you login to opsmdaq0 as the "idaq" user, and type "xscaler", it will tell you exactly what to do. And that is:

cd /opt/idaq/xscaler ; ./xscaler

Dead Time: datamon

There is a display to monitor the DAQ dead time. To run it use the idaq user on opsmdaq0. Type:

 datamon

Scaler Data written to EPICS

The scaler data which appears in xscaler (see above for xscaler) is also written to EPICS. The data are rates in Hz.

The EPICS channels are of the form "Inj_ScalerN_ChM" where N = 1,2,3 and M = 1,2,3,4,...32. See xscaler for channels assignments.

To retrieve data from EPICS you can, for example, do this:

caget Inj_Scaler1_Ch24 Inj_Scaler1_Ch24 484195

The number here means 484195 Hz.

Online Histogram Display

Log on opsmdaq0 using idaq user and from the idaq home directory and type: peppoOnline.

Two windows open, the smaller one have buttons to control the plot to see, the biggest one shows the plot to monitor.

@@ Line 108: / Line 108: @@
 Two windows open, the smaller one have buttons to control the plot to see, the biggest one shows the plot to monitor.
-=== Menu and buttons description ===
-[[Image:Visu.png]]
-menus are available:
-) File menu allows a) to save the plot windows in file, b) print the content of the plot window
-and c) exit
-) Basic Plots allows to plot quickly predefined variables. a) "scalers" plot rates and count of the 32 channels scaler (S1 and S2). X axis is the scaler channel nb. b) "TDC Peppo" shows the TDC for the 9 PMTs of PEPPO, c) FADC Peppo shows the integral of the FADC for the 9 PMTs of PEPPO. other shows the integral of the FADC and TDC individual channels.
-) "zoom" allows to a) unzoom all, b) zoom all, c) zoom automatically around the maximum of each spectra
-buttons on the bottom of the window are available: "LIN" allows to switch between linear and log for Y axis (affect all the spectrae), "Updating" in green plots are updated,  in red "No Update" the plots are not updated to allow print, zoom, or analyzed the spectra (all of these stuff can be done while updating). "Print" is the same thing that the menu "File/Print", "CLEAR" is to reset all the histograms (Reset also automatically occurs at the beginning of the run).
-It is possible to choose only 1 or 2 specific histogramms:
-Choose the number of plot you want in the window ("number of plots") and then choose the variable.

Difference between revisions of "Data Acquisition System"