/Equipment ODB tree: Difference between revisions

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  [local:pol:S]Settings>ls /Equipment/info/ -lr                 
  [local:pol:S]Settings>ls /Equipment/info/ -lr                 
  Key name                        Type    #Val  Size  Last Opn Mode Value
  Key name                        Type    #Val  Size  Last Opn Mode Value
  ---------------------------------------------------------------------------
  ---------------------------------------------------------------------------
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         Status color            STRING  1    32    9h  0  RWD  #00FF00
         Status color            STRING  1    32    9h  0  RWD  #00FF00
         Hidden                  BOOL    1    4    9h  0  RWD  n
         Hidden                  BOOL    1    4    9h  0  RWD  n
<div id="Example Variables subtree"></div>
     Variables                  DIR
     Variables                  DIR
         DBUG                    FLOAT  10    4    8h  0  RWD   
         DBUG                    FLOAT  10    4    8h  0  RWD   
Line 98: Line 97:
         Events per sec.        DOUBLE  1    8    8h  0  RWD  0
         Events per sec.        DOUBLE  1    8    8h  0  RWD  0
         kBytes per sec.        DOUBLE  1    8    8h  0  RWD  0
         kBytes per sec.        DOUBLE  1    8    8h  0  RWD  0
<div id="Example Settings subtree"></div>
     Settings                    DIR
     Settings                    DIR
         Names DBUG              STRING  12    32    9h  0  RWD   
         Names DBUG              STRING  12    32    9h  0  RWD   
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====  <span  style="color: purple;">''Common''</span> subtree  ====
====  <span  style="color: purple;">''Common''</span> subtree  ====
This subtree in an [[#<equipment-name> subtree|<equipment-name> subtree]] contains the parameters used by the system to process the equipment.  The values of the Common parameters are
This subtree in an [[#<equipment-name> subtree|/Equipment/<equipment-name> subtree]] contains the parameters used by the system to process the [[Frontend Operation#Equipments and Events|Equipment]].  The values of the Common parameters are
initially defined in the  [[Equipment List Parameters]] in the [[Frontend user code]] that defines this particular equipment.
initially defined in the  [[Equipment List Parameters]] in the [[Frontend user code]] that defines this particular equipment.


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</div>  
</div>  


This key in the [[#Common subtree|Common subtree]] contains the Event ID of this equipment. See [[Equipment List Parameters#EventID]] for details.
This key in the [[#Common subtree|Common subtree]] contains the Event ID of this equipment. See '''[[Equipment List Parameters#EventID|EventID]]''' for details.


The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
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This key in the [[#Common subtree|Common subtree]] contains the Trigger mask of this equipment.  See [[Equipment List Parameters#TriggerMask|Trigger mask]] for details.
This key in the [[#Common subtree|Common subtree]] contains the Trigger mask of this equipment.  See '''[[Equipment List Parameters#TriggerMask|TriggerMask]]''' for details.


The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
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This key in the [[#Common subtree|Common subtree]] contains the Buffer parameter of this equipment.  See  
This key in the [[#Common subtree|Common subtree]] contains the Buffer parameter of this equipment.  See  
[[Equipment List Parameters#Buffer|Buffer]] for details.
'''[[Equipment List Parameters#Buffer|Buffer]]''' for details.


The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  For Events that are to be logged as banks, Buffer is set to "SYSTEM".
The initial value of this parameter is defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  For Events that are to be logged as banks, Buffer is set to "SYSTEM".
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This key in the [[#Common subtree|Common subtree]] contains the Type of this equipment.  See [[Equipment List Parameters#Type|Type]] for details.
This key in the [[#Common subtree|Common subtree]] contains the Type of this equipment.  See '''[[Equipment List Parameters#Type|Type]]''' for details.


The initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  The Type is one of the defined '''Equipment Flags'''.  
The initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  The Type is one of the defined '''Equipment Flags'''.  
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This key in the [[#Common subtree|Common subtree]] contains the Interrupt or Event Source of this equipment.  See [[Equipment List Parameters#Source|Source]] for details.
This key in the [[#Common subtree|Common subtree]] contains the Interrupt or Event Source of this equipment.  See '''[[Equipment List Parameters#Source|Source]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.  
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This key in the [[#Common subtree|Common subtree]] contains the data format used for generating the event of this equipment. See [[Equipment List Parameters#Source|Source]] for details.
This key in the [[#Common subtree|Common subtree]] contains the data format used for generating the event of this equipment. See '''[[Equipment List Parameters#Format|Format]]''' for details.


The initial value of this parameter is  defined by  the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
The initial value of this parameter is  defined by  the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
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This key in the [[#Common subtree|Common subtree]] indicated whether this equipment is active. See [[Equipment List Parameters#Enabled|Enabled]] for details.
This key in the [[#Common subtree|Common subtree]] indicated whether this equipment is active. See '''[[Equipment List Parameters#Enabled|Enabled]]''' for details.


The initial value of this parameter is  defined by  the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
The initial value of this parameter is  defined by  the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
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This key in the [[#Common subtree|Common subtree]] specifies when the read-out of an event occurs or is enabled. It is set to one or a combination of [[ReadOn Flags]].  See [[Equipment List Parameters#ReadOn|Read on]] for details.
This key in the [[#Common subtree|Common subtree]] specifies when the read-out of an event occurs or is enabled. It is set to one or a combination of [[ReadOn Flags]].  See '''[[Equipment List Parameters#ReadOn|Read on]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.   
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This key in the [[#Common subtree|Common subtree]] specifies the time interval or time-out. See [[Equipment List Parameters#Period|Period]] for details.
This key in the [[#Common subtree|Common subtree]] specifies the time interval or time-out. See '''[[Equipment List Parameters#Period|Period]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
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This key in the [[#Common subtree|Common subtree]] specifies the time interval or time-out. See [[Equipment List Parameters#Event limit|Event limit]] for details.
This key in the [[#Common subtree|Common subtree]] specifies the time interval or time-out. See '''[[Equipment List Parameters#Event limit|Event limit]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
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This key in the [[#Common subtree|Common subtree]] enables the super-event capability. See [[Equipment List Parameters#Number of subevents|Number of subevents]] for details.
This key in the [[#Common subtree|Common subtree]] enables the super-event capability. See '''[[Equipment List Parameters#Number of subevents|Number of subevents]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
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This key in the [[#Common subtree|Common subtree]] enables the [[History System]] for this equipment. See [[Equipment List Parameters#Log History|Log History]] for details.
This key in the [[#Common subtree|Common subtree]] enables the [[History System]] for this equipment. See '''[[Equipment List Parameters#Log History|Log History]]''' for details.


The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
The  initial value of this parameter is  defined by the  [[Equipment List Parameters|Equipment List]] in the [[Frontend user code]] that defines this particular equipment.
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If either
If either
* the [[#Read on||Read on]] parameter contains the [[ReadOn Flags|RO_ODB flag]] or  
* the [[#Read on|Read on]] parameter contains the [[ReadOn Flags|RO_ODB flag]] or  
* [[#Log history]] is enabled,  
* [[#Log history|Log history]] is enabled,  
the event data will be copied to the ODB and listed in this subtree.  
the event data will be copied to the ODB and listed in this subtree.  


In that case, this subtree will contain array(s) of event data named for the bankname(s) in the readout function (see Frontend user code#Event Readout routine]].
In that case, this subtree will contain array(s) of event data named for the bankname(s) in the readout function (see [[Frontend user code#Event Readout routine]].
See [[#Example of /Equipment tree|example]] above.
See [[#Example Variables subtree|example]] above.




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<br>
<br>


=====  <span  style="color: purple;">''<Names-bank>''</span> subtree =====
=====  <span  style="color: purple;">''<Names>''</span> subtree =====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING  (ARRAY)
* '''Type:''' STRING  (ARRAY)
</div>  
</div>  


This key in the  [[#Settings subtree|Settings]] subtree if present is used to define the names of variables in the [[#Variables subtree|Variables subtree]]. It will be used by [[mhttpd]] in the display of the Equipment variables, and by the [[History System]] to generate tags.  See [[#Example of /Equipment tree|example]] above.
These optional key(s) in the  [[#Settings subtree|Settings]] subtree if present are used to define the names of variables in the [[#Variables subtree|Variables subtree]].
If more than one bank is defined, there will be multiple keys named for the bankname, which will be arrays whose elements contain the name of each variable in the bank.
These keys are added by the user.
 
The Names array(s) if present will be used by [[mhttpd]] in the display of the Equipment variables, and by the [[History System]] to generate tags.  See [[#Example Settings subtree|example]] above.






[[Category:ODB Tree]]
[[Category:ODB Tree]]

Revision as of 16:55, 11 June 2014

Links

Purpose

The ODB /Equipment tree contains user and system information related to a frontend.

Creating the /Equipment tree

An empty /Equipment tree will be created by mlogger.

If an Equipment is defined in Frontend user code, the first time the frontend is run, that equipment will be created in the ODB as a subtree under the /Equipment tree with the values supplied in the Frontend user code.

Example of /Equipment tree

The following is an example of the /Equipment tree from an experiment obtained with the odbedit ls command listing all the defined equipments in the experiment : 

[local:pol:S]Settings>ls /Equipment -l
Key name                        Type    #Val  Size  Last Opn Mode Value
---------------------------------------------------------------------------
POL_ACQ                         DIR
Scaler                          DIR
Trigger                         DIR
VME                             DIR
SisPulser                       DIR
INFO                            DIR
HISTO                           DIR


The following is a listing of one of the equipments in the /Equipment tree shown above : 

[local:pol:S]Settings>ls /Equipment/info/ -lr                
Key name                        Type    #Val  Size  Last Opn Mode Value
---------------------------------------------------------------------------
INFO                            DIR
   Common                      DIR
       Event ID                WORD    1     2     9h   0   RWD  3
       Trigger mask            WORD    1     2     9h   0   RWD  8
       Buffer                  STRING  1     32    9h   0   RWD  SYSTEM
       Type                    INT     1     4     9h   0   RWD  1
       Source                  INT     1     4     9h   0   RWD  0
       Format                  STRING  1     8     9h   0   RWD  MIDAS
       Enabled                 BOOL    1     4     9h   0   RWD  y
       Read on                 INT     1     4     9h   0   RWD  257
       Period                  INT     1     4     9h   0   RWD  100
       Event limit             DOUBLE  1     8     9h   0   RWD  0
       Num subevents           DWORD   1     4     9h   0   RWD  0
       Log history             INT     1     4     2h   0   RWD  1
       Frontend host           STRING  1     32    9h   0   RWD  lxpol.triumf.ca
       Frontend name           STRING  1     32    9h   0   RWD  pol_fevme
       Frontend file name      STRING  1     256   9h   0   RWD  pol_fevme.cxx
       Status                  STRING  1     256   9h   0   RWD  pol_fevme@lxpol.triumf.ca
       Status color            STRING  1     32    9h   0   RWD  #00FF00
       Hidden                  BOOL    1     4     9h   0   RWD  n

   Variables                   DIR
       DBUG                    FLOAT   10    4     8h   0   RWD  
                                       [0]             0
                                       [1]             101
                                       [2]             2121
                                       [3]             2121
                                       [4]             101
                                       [5]             2
                                       [6]             4
                                       [7]             1
                                       [8]             1
                                       [9]             0
       CYCL                    FLOAT   10    4     8h   0   RWD  
                                       [0]             1
                                       [1]             3520
                                       [2]             176
                                       [3]             20
                                       [4]             30
                                       [5]             176
                                       [6]             3520
                                       [7]             1
                                       [8]             0.05
                                       [9]             0.0522
       SUMS                    DOUBLE  4     8     8h   0   RWD  
                                       [0]             0
                                       [1]             10000
                                       [2]             0
                                       [3]             0
   Statistics                  DIR
       Events sent             DOUBLE  1     8     8h   0   RWD  176
       Events per sec.         DOUBLE  1     8     8h   0   RWD  0
       kBytes per sec.         DOUBLE  1     8     8h   0   RWD  0

   Settings                    DIR
       Names DBUG              STRING  12    32    9h   0   RWD  
                                       [0]             Data still buffered
                                       [1]             Num SIS LNE events
                                       [2]             LNE count from SIS
                                       [3]             LNE preset value
                                       [4]             number of bins
                                       [5]             data bytes code
                                       [6]             num enabled channels
                                       [7]             discard first bin
                                       [8]             discard first cycle
                                       [9]             not used
                                       [10]            not used
                                       [11]            not used
       Names CYCL              STRING  12    32    9h   0   RWD  
                                       [0]             Scan type code
                                       [1]             Number good cycles
                                       [2]             Number supercycles
                                       [3]             Cycle num within supercycle
                                       [4]             Sweep number
                                       [5]             Num cycles skipped
                                       [6]             Num cycles histogrammed
                                       [7]             DAC Increment number
                                       [8]             DAC Set Value (volts)
                                       [9]             DAC Readback (volts)
                                       [10]            not used
                                       [11]            not used
       Names SUMS              STRING  4     32    9h   0   RWD  
                                       [0]             SC Sum ch17
                                       [1]             SC Sum ch18
                                       [2]             SC Sum ch19
                                       [3]             SC Sum ch20

Keys in the /Equipment ODB tree

<equipment-name> subtree

This subtree in the /Equipment ODB tree The /Equipment ODB tree will be named for an Equipment defined in the Frontend user code. No two subtrees in an experiment can have the same name. An <equipment-name> subtree will be present for every defined equipment in all the frontend(s) run on the experiment. The subtree will be created the first time the defining frontend is run. Note that if these parameters are later changed in the ODB, they will not be overwritten by the values in the frontend if the frontend is restarted.




Common subtree

This subtree in an /Equipment/<equipment-name> subtree contains the parameters used by the system to process the Equipment. The values of the Common parameters are initially defined in the Equipment List Parameters in the Frontend user code that defines this particular equipment.



Event ID
  • Type: WORD
  • Default:

This key in the Common subtree contains the Event ID of this equipment. See EventID for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.


Trigger mask
  • Type: WORD
  • Default:


This key in the Common subtree contains the Trigger mask of this equipment. See TriggerMask for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.




Buffer
  • Type: STRING
  • Default: "SYSTEM"


This key in the Common subtree contains the Buffer parameter of this equipment. See Buffer for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment. For Events that are to be logged as banks, Buffer is set to "SYSTEM".



Type
  • Type: INT
  • Default:


This key in the Common subtree contains the Type of this equipment. See Type for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment. The Type is one of the defined Equipment Flags.




Source
  • Type: INT
  • Default:


This key in the Common subtree contains the Interrupt or Event Source of this equipment. See Source for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.




Format
  • Type: STRING
  • Default:


This key in the Common subtree contains the data format used for generating the event of this equipment. See Format for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.




Enabled
  • Type: BOOL
  • Default:


This key in the Common subtree indicated whether this equipment is active. See Enabled for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.



Read on
  • Type: INT
  • Default:


This key in the Common subtree specifies when the read-out of an event occurs or is enabled. It is set to one or a combination of ReadOn Flags. See Read on for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.




Period
  • Type: INT
  • Default:


This key in the Common subtree specifies the time interval or time-out. See Period for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.





Event limit
  • Type: DOUBLE
  • Default:


This key in the Common subtree specifies the time interval or time-out. See Event limit for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.





Num subevents
  • Type: DWORD
  • Default:


This key in the Common subtree enables the super-event capability. See Number of subevents for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.




Log history
  • Type: INT
  • Default:


This key in the Common subtree enables the History System for this equipment. See Log History for details.

The initial value of this parameter is defined by the Equipment List in the Frontend user code that defines this particular equipment.





Frontend host
  • Type: STRING
  • Default:


This key in the Common subtree contains the name of the Frontend host running the Frontend user code that defines this particular equipment. It is filled by the system.




Frontend name
  • Type: STRING
  • Default:


This key in the Common subtree contains the Frontend name defined in the Frontend user code that defines this particular equipment. It is filled by the system.




Frontend file name
  • Type: STRING
  • Default:


This key in the Common subtree contains the filename of the Frontend user code that defines this particular equipment. It is filled by the system.




Status
  • Type: STRING
  • Default:


This key in the Common subtree contains the combination of Frontend name and Frontend host Frontend host that define this particular equipment. It is filled by the system and used by mhttpd status page.




Status color
  • Type: STRING
  • Default: "#00FF00"


This key in the Common subtree contains a colour code to be used for the display of this equipment on the mhttpd status page.




Hidden
  • Type: BOOL
  • Default: "n"

This key in the Common subtree if set to "y" will prevent the display of this equipment on the mhttpd status page.




Variables subtree

  • Type: DIR

This is a subtree in the /Equipment ODB Tree.

If either

the event data will be copied to the ODB and listed in this subtree.

In that case, this subtree will contain array(s) of event data named for the bankname(s) in the readout function (see Frontend user code#Event Readout routine. See example above.




Statistics subtree

  • Type: DIR

This subtree in the /Equipment ODB Tree contains statistics written by the system.





Events sent subtree
  • Type: DOUBLE

This key in the Statistics subtree contains the number of events of Event ID sent. It is filled by the system and used for display on mhttpd status page.




Events per sec subtree
  • Type: DOUBLE

This key in the Statistics subtree contains the number of events of Event ID sent per second. It is filled by the system and used for display on mhttpd status page.




kBytes per sec subtree
  • Type: DOUBLE

This key in the Statistics subtree contains the number of kBytes per second for events of Event ID sent. It is filled by the system and used for display on mhttpd status page.



Settings subtree

  • Type: DIR

This subtree in the /Equipment ODB Tree contains user-defined settings, some of which may be used by the system. Any values defined in this subtree will appear in experim.h files.



<Names> subtree
  • Type: STRING (ARRAY)

These optional key(s) in the Settings subtree if present are used to define the names of variables in the Variables subtree. If more than one bank is defined, there will be multiple keys named for the bankname, which will be arrays whose elements contain the name of each variable in the bank. These keys are added by the user.

The Names array(s) if present will be used by mhttpd in the display of the Equipment variables, and by the History System to generate tags. See example above.

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