8-pack control system working group Meeting Notes
27 May 2003
In attendance: E. Andrikopoulos, R. Chestnut, J. Frisch, K. Kim, J. Nelson, J. Rock,
Note taker/typer: J. Nelson
Changes in blue.
Of immediate concern: What’s preventing the processing loop from working?
Kukhee and Ron reported the proc loop is ready for test without signals. Janice will put a note on the board for standby time, and Elias said that most likely Thursday will be available while they switch the TWT et al over to Klystrons 7&8. Also, if load 6 is done processing tomorrow, there may be time after.
Joe reported he is capable of connecting his HW to the DIO.
Judy reported that the DIO database is done.
Elias will work with Andy to make PHIT 1 be PHIT 2 (rewire, but no software changes)
still true: *The panel is not quite done.
SWE will add diode reset buttons to the IQA module panel and the LLRF main panel
-we forgot to ask Elias: Andrew will make “MODIFIED” stickers for the SISes he’s modified.
-we forgot to ask Elias: Andrew will finish testing the SISes to make sure they work after the human error.
-Joe reported the triggers are set up to trip the SISes on either a diode fault or sw fault right now. We will probably want to change this once the processing loop is commissioned and working.
-6 SISes are in TR09; 3 will remain, 3 will move to TR00 assuming no addressing problems.
Joe provided names (in English) for the 8 signals in the first module. SWE will assign names for the other two modules which will be all acoustic sensor signals.
Judy has started to think about a support panel.
Once we have names, need to get the list to Bob for archiving on a fault.
-(no change) We deferred the following: longer term issue: what to do if reading out an SIS when a fault occurs?
-(no change) Right now the SISs are paused and read out with a user request only. A read when a fault happens will also be added to this.
-Judy said the IQA calibration numbers are in the list of items to be archived.
-(I believe this is still true) Need to test the calibrated waveforms
Peak Power Meter (PPM)
-Janice reported that both PPMs are hooked up to labview, though it’s not running all the time during commissioning and load processing.
-Tonee has yet to write the labview code to retrieve the scope waveforms, but is working on it.
-Only the PPA PARMs were being archived. Janice gave the new list to Judy/Bob. Once the waveform retrieval is working, we’ll add those PVs to the archive list.
-Janice will teach llrf how to get at archived data and panel.
-Janice reported that at the 10:00 meeting this morning Jeff De La Mare reported: Cassel didn’t change any of the tables since the last printout, he’s only added stuff for the vacuum analog trips. This list should appear reasonably soon, then we’ll go to the next step:
-(no change) We’re currently waiting for Dick’s setup to settle down then we’ll do one more iteration of getting list, changing database, changing panels, programming the dcm, changing alarm handler and archive stuff as needed
no changes to stuff below:
-(no change) On going: Need to check out readback with real signals, check archiving of variables (pwr, pmin, pmax, etc), and check the plots.
-(no change)Judy reported the crate profiles on the web are updated and look good. Janice requested that channel assignment information also be available via the web, even it it’s just a link to the template file. Judy and Ron will look into this.
-Has this been done? Andrew will tell Kukhee when he takes out the DIO module to modify it for the deadman
All of these issues are for later:
-TBD: The trickle down of the SLED variables. This was specified at a previous meeting (numbers on SLED panel need to trickle down to I/Q and A/P PVs). For processing, we might want this feature functional sooner rather than later.
-TBD: the trickle down of the variables on the power distribution panel as well. There are 4 PVs there called Klystron Sled-in phases. These need to trickle down to the phase DACs as well. This phase is to be added to the channel phase angle (IQ calib panel) and to the timestep phase before going out to the DAC.
-(no change) SWE plans to implement the following two features requested by LLRF (Joe’s email):
have waveforms archived on (1) every trip and (2) when an acquire is done by a user
-(no change) Later SWE will work with Joe on his other two requests: archive every few minutes and when a change occurs in a selected set of values in EPICS (a pseudo-trip if you will)
- Steve confirmed that LLRF folks will indeed contact SWE: (still waiting on HW folks) Processing algorithm ready to be checked. Andy will call Kukhee and Ron when there’s a good time to check it.
- Kukhee will make sure the processing loop resets the IQAs too.
-The trigger stopping mechanism on a fault was discussed. Joe proposed a DIO bit goes to NIM logic etc etc. It’s believed that Kukhee’s method of changing the trigger register status is too slow for the number of SISes and their location in different crates.