Experts State Machine
This webpage explains how to bypass the DIRC injectable flag to allow PEP to inject while we have some troubles with our system.
The 'Experts State Machine' panel is a slightly modified version of the usual 'BaBar State Machine'. To open it, click on 'PEP' on the main BaBar epics panel and then right-click on the 'State Machine' button. This will open a small menu with two choices: 'Inj State Machine' (the panel used by the pilot to steer BaBar) and 'Experts State Machine'. Choose the latter and wait for the panel to show up.
- Make sure you know what you're doing before bypassing that flag.
- Enabling/disabling the flag bypass can only be done in IR2 from the pilot console.
- Do not forget to disable the bypass once you're done.
- Pilots are not supposed to know this trick: it is the responsability of the subsystem experts to enable it or not.
Before starting working on the DIRC, check the PEP status and the immediate plan to understand whether you need to bypass the DIRC status or not.
To access the 'Experts State Machine' epics panel, right-click on the 'State Machine' button at the bottom of the panel (button with a blue frame) and select that panel.
The only differences between the pilot and 'experts' panels are the 4 additional cyan buttons (in the middle top section of the panel) which are labelled 'INACTIVE' by default. Clicking on one of them allows to bypass the injection flag of the corresponding subsystem: do it for the DIRC if needed.
To bypass the DIRC injectable flag, click on the cyan button (with a red frame) labelled 'INACTIVE' close to the DIRC status.
Last modified: Fri May 12 06:51:30 PDT 2006