Adding any Tango Attribute as a Counter to the MeasurementGroup

Any Tango attribute from any Tango device can be added as a counter to the MeasurementGroup.

There are basically two ways to accomplish this:

• Recommended: Create a PseudoCounter by inserting an entry into online.xml and use it like any other counter channel. SardanaAIO has to be executed after online.xml has been extended.

  The first example creates a PseudoCounter for the Petra current:

  <device>
   <name>petraCurrent</name>
   <type>counter</type>
   <module>tangoattributectctrl</module>
   <device>petra/globals/keyword/BeamCurrent</device>
   <control>tango</control>
   <hostname>haspp99:10000</hostname>
  </device>
  

  The <device> tag has to contain not only the name of the device the attribute belong to but also the name of the attribute itself. <module> has to be 'tangoattributectctrl'.

  The next example shows how a PseudoCounter is created which represents a channel of an input register:

  <device>
   <name>ireg1value</name>
   <type>counter</type>
   <module>tangoattributectctrl</module>
   <device>p09/register/d1.in01/Value</device>
   <control>tango</control>
   <hostname>haspp99:10000</hostname>
  </device>
  

  Alternatively one can use a modified syntax.

  In general:

   <device>
   <name>anyname_attributename</name>
   <type>counter</type>
   <module>tangoattributectctrl</module>
   <device>my/tango/device</device>
   <control>tango</control>
   <hostname>hasppXY:10000</hostname>
  </device>
  

  A specific example:

  <device>
   <name>h_position</name>
   <type>counter</type>
   <module>tangoattributectctrl</module>
   <device>pm/e6cctrl/1</device>
   <control>tango</control>
   <hostname>haspp99:10000</hostname>
  </device>
  

  The <name> tag has to be composed of any name (ex. 'anyname') followed by _ and the name of the attribute to be read, and <device> is the name of the device this attribute belongs to. <module> has to be 'tangoattributectctrl'.

• Not recommended: The second way is to insert an attribute as a counter directly into the MG:
  • expconf:

    In expconf one have to select the item 'Other...' in the menu with all the available channels, this will open a device tree with all the tango devices in the TANGO_HOST. If the attribute does not belong to a Tango device with the same TANGO_HOST you will not see the device and correspondingly the attibute in the tree, but you can still use this tool for adding it. The way is clicking in the button '+' below the window with the device tree. This will create a line with '(Empty)' in the window below. By double clicking in this line you will be able to edit it, so write there the complete adress of the attribute, ej.:

          haspp09mono:10000/p09/lks336tempctrl/exp.01/OutputA
    

  • Spock macros: Using the spock macros for adding this attribute you will give as name for this 'counter' the tango device name plus attribute name. You have to specify the TANGO_HOST if this is different than the one in which you are working. Ex.

          p09/door/haso111tb [1]: defmeas mgtest exp_t01 haspp09mono:10000/p09/lks336tempctrl/exp.01/OutputA