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    Make New Entry, Make Followup Entry

    User name R. Michaels

    Log entry time 14:29:43 on November 2,2009

    Entry number 297171

    Followups:

    keyword=new helicity board info

    Here is a note from Riad Suleiman about the new helicity board.
    The variable changes will affect at least our EPICS logging scripts.
    I doubt they affect our feedback scripts but it should be checked.

    ---------------------------------------------------------
    The new helicity board was installed on Nov 2nd, 2009.
    The info below shows the old and new EPICS channels related
    to the helicity configuration.
    The old channels are no more valid
    ---------------------------------------------------------

    OLD

    G0 Helicity Settle Set : HELG0TSETTLEs
    G0 Helicity Delay Set : HELG0DELAYs
    G0 Helicity Pattern Set : HELG0PATTERNs
    G0 Helicity Random/Toggle Set : HELG0ORDERs

    G0 Helicity Settle Read : HELG0TSETTLEd
    G0 Helicity Delay Read : HELG0DELAYd
    G0 Helicity Pattern Read : HELG0PATTERNd
    G0 Helicity Random/Toggle Read : HELG0ORDERd

    --- Values:

    G0 Helicity Settle Set : 500 usec
    G0 Helicity Delay Set : 8 cycles
    G0 Helicity Pattern Set : Quartet
    G0 Helicity Random/Toggle Set : Random

    G0 Helicity Settle Read : 500 usec
    G0 Helicity Delay Read : 8 cycles
    G0 Helicity Pattern Read : Quartet
    G0 Helicity Random/Toggle Read : Random


    ---------------------------------------------------

    NEW

    HELCLOCKd (Line Synced 30 Hz,120 Hz, 240 Hz , or Free Clock)
    HELTSETTLEd (T_Settle in usec)
    HELTSTABLEd (T_Stable in usec)
    HELDELAYd (Reporting Delay in helicity cycles)
    HELPATTERNd (Helicity Pattern: Pair, Quartet, Octet, or Toggle)
    HELFREQ (A calculated Helicity Frequency in Hz, Not a readback)

    More detailes:

    Helicity Clock Set : HELCLOCKs
    Helicity Delay Set : HELDELAYs
    Helicity Pattern Set : HELPATTERNs

    Helicity Clock Read : HELCLOCKd
    Helicity Settle Read : HELTSETTLEd
    Helicity Stable Read : HELTSTABLEd
    Helicity Delay Read : HELDELAYd
    Helicity Pattern Read : HELPATTERNd
    Helicity Frequency : HELFREQ

    --- Values:

    Helicity Clock Set : Free Clock
    Helicity Delay Set : 8 cycles
    Helicity Pattern Set : Quartet

    Helicity Clock Read : Free Clock
    Helicity Settle Read : 500 usec
    Helicity Stable Read : 33330 usec
    Helicity Delay Read : 8 cycles
    Helicity Pattern Read : Quartet
    Helicity Frequency : 29.5596 Hz