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EPICS2ACNET. October 28, 2008. Present Status. Map devices by EPICS PV name and field to ACNET device and property Using MOOC front end to interface Duane has provided a prototype implementation dbxxx interface for local node access (10 usec)

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EPICS2ACNET

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Epics2acnet

EPICS2ACNET

October 28, 2008


Present status

Present Status

  • Map devices by EPICS PV name and field to ACNET device and property

  • Using MOOC front end to interface

  • Duane has provided a prototype implementation

    • dbxxx interface for local node access (10 usec)

    • caxxx interface for remote node access (1 msec) (will try caxxx interface for local access as well)

    • mapping is hard coded in front end


Present status contd

Present Status (contd)

  • Mapping table created

  • DABBEL modified to support insertion of information into the mapping table

    • FMAP property (‘EPICS’,

    • ‘{PV name (with field)}’,’type’,,)


Work to be done

Work to be done

  • Improve efficiency of EPICS interface

  • Settle on an SSDN format

  • Implement LOOKUP interface to download mapping information (including handling database modifications on the fly)

  • Implement fast time plot and snapshot plot support

  • Modify D80 to make it easy to create devices (Do we provide assistance to the user?)

  • Create guidelines for IOC programmers for ACNET friendly database records


Device mapping database table

Device Mapping Database Table

  • Device index

  • Property

  • Field number (can build structures)

  • System type (EPICS, APACS, etc.)

  • PV name (including field)

  • Start index (start index in foreign device array)

  • Number of elements (number of elements in foreign device array)

  • Data type (float, integer, etc.)

  • Data length in bytes

  • Date (date of last modification)


Acnet device entry help issues

ACNET Device Entry Help Issues

  • Search for PV names from a node

  • Search for PV names matching a string

  • Determine the EPICS data type for a PV

  • Determine the number of elements in a PV


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