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New PPS EPICS Panels : intro & demo. Original intention…Training & Troubleshooting for Secure Loop Logic Set Entry Loop Logic Later bells and whistles… Zone Search Logic VVS & Stopper Permits. Secure Loops. What do they do? Tell you that an area is ready for beam. Where are they?

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New pps epics panels intro demo

New PPSEPICSPanels: intro & demo

Original intention…Training & Troubleshooting for

Secure Loop Logic

Set Entry Loop Logic

Later bells and whistles…

Zone Search Logic

VVS & Stopper Permits


Secure loops
Secure Loops

What do they do?

  • Tell you that an area is ready for beam.

    Where are they?

  • West End (CID, LI00, DRIP, NDR, SDR)

  • 2 thru 29 (LI02 – LI29, e+ vault)

  • 30 – MCC (LI30, BSY, FFTB, x-ray hutch, ESA, NARC, SARC)

  • PEP (IR2-IR12, NIT, SIT)


Set entry loops
Set Entry Loops

What do they do?

  • Tell you that the radiation hazards common to a collection of zones are off.

  • Each PPS zone may have additional zone-specific radiation & electrical hazards that need to be off for entry.

  • Serves as an acknowledge from operations that a LINAC entry is desirable (there’s no CA), enabling keybank releases. (LI00 & LI30 oddities).

    Where are they?

  • West End

  • 2 thru 30


Purpose of the new panels
Purpose of the new panels

  • Training

    • Operator Training books are PPS ZONE specific. This should help show how the zones fit into the broader world of PPS for making beam or setting entry.

    • Current documentation not geared for operator use

  • Troubleshoot

    • Q: “I just had a secure loop fault. What caused it?”

    • A: Trace it backwards to the source. List all possible inputs (even those without remote readback).

    • Q: “I can’t set entry to the LINAC. Why?”

    • A: List all requirements.


Panel demonstration
Panel Demonstration…

  • Current Status

    • Set Entry Loop Logic Completed

    • Secure Loop Logic Completed (except PEP)

    • Several Zone Secure Loops Completed

    • Using EPICS dm2k

    • See e-mail for how to access the test panels

  • Future Improvements

    • EPICS dm2k soon to be discontinued; should import easily into EPICS edm

    • Add more PPS & ready for beam diagnostics

    • Available from SCP (“in production” with color sets)


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