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--- s800_daq_tools [2017/06/16 18:22]
pereira [Readout GUI]
+++ s800_daq_tools [2017/06/16 18:58]
pereira [Running in Slave mode with multilogger]
@@ Line 18: / Line 18: @@
-==== Running in Slave mode with multilogger ====
+==== Readout GUI ====
 The S800 Readout GUI is invoked by either clicking the icon **S800 DAQ** in the desktop of [[Software#u6pc5 (data U6)|u6pc5]] or by navigating in a Linux terminal to the directory **/user/s800/converged_daq** and typing ''godaq''. The Readout GUI window will appear with three tags labeled "main", "SSHPipe@localhost:0", and "SSHPipe@localhost:1". The first one provides general information about the ReadoutGUI. The second and third tabs provide information about the data sources (from the CCUSB and VMUSB controllers). **IMPORTANT NOTE:** When running Readout GUI, make sure that the environment variables needed by the system are properly defined. This can be done from a Linux session connected to spdaq19 by typing: ''. /usr/opt/nscldaq/xxxx/daqsetup.bash'', where ''xxxx'' is the nscldaq version (xxx = 11.0-020, on Feb 2016).
@@ Line 98: / Line 98: @@
 {{:wiki:Scalers.jpg?700|Scaler Display}}
+==== Running in Slave mode with multilogger ====
+The S800 DAQ can be run in Standalone mode (as described above), or in Slave mode. The later means that the S800 DAQ is controlled by an external DAQ (e.g. GRETINA). In this mode, the S800 ULM receives external clock and external synchronization  signals from the master DAQ. Running in Slave mode requires to change the script **CC0105Begin.tcl** in directory **/user/s800/converged_daq/Scripts**. In this file, there are two variables ''extsynch'' and ''extclock'' to define if the external synchronization and clock signals are enabled (=1) or disabled (=0). Make sure that you set these variables to 1 if you want to run in Slave mode.
+By default, when running in Slave mode, data are recorded in the stagearea of the Master DAQ (experiment account). It is however possible to record simultaneously data from the S800 into the S800 stagearea, using the ''multilogger'' option (see ReadoutGUI figure above). The S800 ReadougGUI offers the possibility to record data from four different S800 ring-buffers: rawccusb, rawvmusb, s800built, and s800filter. The later is the most important since data from this ring buffer can be immediately processed by the S800 SpecTcl.
+Before running an experiment with a Master system (e.g. GRETINA), it is recommendable to run the S800 DAQ in Slave mode with the s800filter multilogger enabled. This can be done following the steps:
+  * Click to the tab ''multilogger'' in the **ReadoutGUI**
+  * Select the option "always record"
+  * Click again on the tab ''multilogger'' and select
+{{:wiki:multilogger.png|Multilogger window}}

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