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Linac Locking - Phase Locker IOC PVs [sioc-sys0-ms10]

New Displays

Currently, there is no phase locker test stand in Dev and hence only the Production display is availableDev and hence only the Production display is available.


To launch the linac locking dashboard GUI in Production, log onto the appropriate host (Production ==>  lcls-srv01) and then run the command mslk_dashboard:

[softegr@lcls-srv01 skoufis]$ mslk_dashboard
lcls-srv01
[2024-03-18 15:26:22,275] [INFO    ] - Using PyDM via SSH. Reverting to Software Rendering.
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Upon running the command successfully, the following display is invoked.  Choose Phase Locker Expert to monitor the phase locker IOC.

Image Added

Old Displays

Note that the preferred way of accessing the display is the one shown above.  However, below, we include instructions on how to launch the old display directly if needed.

Production

To access and launch the display in Production, follow the steps outlined below. 

Code Block
languagebash
[softegr@lcls-srv01 skoufis]$ cd $EPICS_IOCS/sioc-sys0-ms10/iocSpecificRelease/masterSourceApp/srcDisplay/
[softegr@lcls-srv01 skoufis]$ cat masterSourceApp/srcDisplay/README.phaselocker 

To run the phase locker screen in production, follow these steps from within this directory:

1. $ source /usr/local/lcls/epics/setup/epicsenv-7.0.3.1-1.0.bash
2. $ source /usr/local/lcls/tools/script/ENVS64.bash
3. $ pydm -m "PREFIX=PRL:SYS0:1" plocker.ui
ENVS64.bash
3. $ pydm -m "PREFIX=PRL:SYS0:1" plocker.ui


The Phase Locker Expert is an engineering screen intended to be used by the firmware engineer for tuning until a locked state is achieved.

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Register Configuration For Locked State

The registers have been tuned to achieve a lock in Production.  See below the display with the selected values.  These values are also captured by autosave.

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Deliverables

The released software will be made available in the main IOC release area post-deployment (Dev: /afs/slac/g/lcls/epics/iocTop/masterSource/, Production:/usr/local/lcls/epics/iocTop/masterSource/).  See below for the specific repositories and tags.

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See firmware release details below.

References 

View file
nameLCLS 476MHz VCO Phase Locking Firmware Design.docx
height250

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