Quelques lignes sur le flag Wiener dans Monitor.dl


On the DIRC main epics panel, Monitor.dl, the Wiener Crates flag 
is set by the record:

  DRC::GLB:ST:STAT

The color change is initiated by the SEVR field of this record. 
Here are the details of how this record is computed:

 * DRC::GLB:ST:STAT
   It's a combination of 2 records
   DRC::FEE:ST:STAT
   DRC::WCR:STS:STAT    
   
   * DRC::FEE:ST:STAT
     This status record is the sum of the FEE status of the 12 sectors, each
     sector having the status record
     DRC:SC_<sector>:FEE:ST:STAT    (sector=0...11)

     * DRC:SC_<sector>:FEE:ST:STAT
       It's the result of a check of 2 records:
       DRC:SC_<sector>:FEE:ST:DFB
       DRC:SC_<sector>:DCC:STAT

       * DRC:SC_<sector>:FEE:ST:DFB
         It's the sum of a check of the 14 DFB of the sector, each DFB having 
         the status record:
         DRC:SC_<sector>:FEE:DFB_<dfb>:STAT    (dfb=0...13)

         * DRC:SC_<sector>:FEE:DFB_<dfb>:STAT
           It checks several observables of a single DFB:
           DRC:SC_<sector>:FEE:DFB_<dfb>:TMP_ST 
           DRC:SC_<sector>:FEE:DFB_<dfb>:3V_ST   (should be in [2;4])
           DRC:SC_<sector>:FEE:DFB_<dfb>:5V_ST   (should be in [4;6]) 
           DRC:SC_<sector>:FEE:DFB_<dfb>:6V_ST   (should be in [5;7]) 
           DRC:SC_<sector>:FEE:DFB_<dfb>:VEE_ST  (should be in [-6;-4]) 
           DRC:SC_<sector>:FEE:DFB_<dfb>:VCC_ST  (should be in [4;6])
           DRC:SC_<sector>:FEE:DFB_<dfb>:12V_ST  (should be in [10;14])  
           DRC:SC_<sector>:FEE:DFB_<dfb>:12N_ST  (should be in [-14;-10])
           Actually, all this records are status record, i.e the value is
           either 0 or 1 given the real physical value of the same record 
           without '_ST' extension at the end is in the appropriate range.
           Moreover, the first record is only relevant for DFB 0 and 6.

         * DRC:SC_<sector>:DCC:STAT 
           It checks several observables of a single DCC:
           DRC:SC_<sector>:FEE:DCC:TMP_ST
           DRC:SC_<sector>:FEE:DCC:VTT_ST
           DRC:SC_<sector>:FEE:DCC:VEE_ST
           DRC:SC_<sector>:FEE:DCC:VCCFNS_ST
           DRC:SC_<sector>:FEE:DCC:VCC_ST
           DRC:SC_<sector>:FEE:DCC:VCCAV_ST

   * DRC::WCR:STS:STAT
     This status record is the sum of the Wiener Crate status of the 
     12 sectors, each sector having the status record
     DRC:SC_<sector>:WCR:STS:AC_ON    (sector=0...11)
     It checks whether the crate is on or off.....

 
That's it for the logic of the Wiener Crate flag.

Moreover, there are 4 records from the Wiener crates used to set
the DIRC Runnable flag:
     DRC:SC_<sector>:FEE:DCC:VEE_ST    (DIRC FEE status -5V)
     DRC:SC_<sector>:WCR:PS_0:V.SEVR   (crate +5 V)     
     DRC:SC_<sector>:WCR:PS_1:V.SEVR   (crate +12V) 
     DRC:SC_<sector>:WCR:PS_5:V.SEVR   (crate -12V)
for the '.SEVR', O (NO_ALARM) and 3 (NOT_CONNECTED) are allowed.
One more record is also used:
     DRC:SC_<sector>:FEE:ERR:GLPB, concerning status of the Glink

Nevertheless, I have one concern about this DRC::GLB:ST:STAT record, since
it is the SEVR field that is used to de termine the color of the indicator in
the Monitor.dl panel. And it looks like the record has no alarm attached to it,
so it shoul always be green (or white if not connected ?). Did anyone see the
indicator in yellow or red ?




wienerflag.txt
	
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