General:

Reminder to all the groups to provide the shutdown task list today afternoon to PSPO. Find template attached.

SPB:

• ​In general was a succesful weekend. On Sunday there were some problems with control and DAQ already reported to CAS.
• To check if there were additional problems on Monday and report to CAS if necessary.
• To provide the shutdown task list to PSPO.

FXE :

• ​Was not present, so nothing was reported.

Tunnels:

• Nothing particular.
• List with the shutdown tasks to be provided to PSPO.

Laser:

• Motors were not working, this issue was partially solved in a couple of motors. Detected that the problem was a configuration issue in the PLC. WP-78 will test the solution in other motors of the same kind.
• Laser was running during thre weekend, data will be reviewed today to analyse laser behaviour.

Detectors:

• To investigate a problem with AGIPD, this will require the support from CAS.

Electronics

• Preparing for Oct. shutdown.

ITDM

• DAQ problems on Monday and Tuesday due to detector configuration, still working to find out the causes of the problem.

Software

• Working in the problems reported during the weekend.

We would like to take the oportunity of the shutdown period and update the online storage next week on Monday 9th Oct. This will take approx. half a day. During that time the online storage will not be available on the online computing cluster as well as on pclayer servers used for DAQ. In the same way, the nfs export for data logger is also affected.

Regarding data collected on the online cluster, although it should not have any influence, but as a precautionary measures, please make sure that all relevant data from all past proposals  are migrated to offline storage, which in practice means requesting migration via metadata catalog web interface. If there are still issues with particular runs not being able to be migrated, please contact ITDM.

regards,

Janusz 

30.09. from 08:00 until 01.10. 08:00 - Andreas Koch 9-6443

01.10. from 08:00 until 02.10. 08:00 - Joakim Laksman 9-5630  

Correction: We will meet again on Wednesday the 4th of October.

The SASE1/SASE3 Readiness meeting next Monday is cancelled we will meet again on Wednesday the 3rd of October.

SPB (A. Mancuso): 

• ​Users are in good shape
• Beam operation with ca. 600 microJ, but beam seems to be ring-shaped after M2?
• Preparing for first pump&probe experiments in November.
• Start of the focussing mirror controls should start after the user run

FXE ():

• ​Was not present at the beginning of the meeting, so nothing was reported.

Tunnels (M. Dommach):

• SASE1:
  • Nothing particular.
• SASE3:
  • ​Preparing for the works in XTD10 during the Oct. shutdown are ongoing.
  • PES: Will just be connected to vacuum & pumped, not functional.

Laser (M. Lederer)

• Sustained small damage during set-up
• Not much time left until user run requires PP-laser
• Issue regarding motors not coming back to their position reliably still persists / is not solved. ==> To be tackled by Gabriele (CAS) + Nerea / Nicola / Janna (AE)

Detectors (P. Lang)

• Detectors are in operation
• Works in Oct. shutdown mostly indepenent from other groups
• LPD & Gotthard run together, but Gotthard has not yet detected X-rays?

Electronics (P. Gessler)

• Preparing for Oct. shutdown
• Train-builder should be tested in the Winter shutdown, because the contract only runs until March.

ITDM (K. Wrona)

•  There are some issues with run-control, being investigated.

Software (S. Brockhauser):

• Daily meetings with FXE & SPB.
• C. Youngman is working on the Master Equipment List for SASE3. The basic assumption is to copy any configurations/parameters from SASE1 to SASE3.
• Focussing now more on the SASE1-issues (e.g. Karabo-DOOCS-Interface ==> will mirror devices from Karabo into DOOCS.)

Priorities & Schedule (T. Tschentscher, G. Wellenreuther):

• Performance of SASE1 has to be improved, in particular the performance of the accelerator. This has higher priority than continuing building up SASE3 or SASE2.
• For example, the measurement of gain curves requires the MCP, consequently its completion has highest priority.
• The control room also needs fast & direct access to more devices than just the XGM to properly tune lasing, consequently the Karabo-DOOCS interface has highest priority.
• For the overall planning of the next ca. 5 weeks all groups are expected to report back to T. Tschentscher & PSPO until Wednesday next week. PSPO will produce a Gantt-chart of all activities. Template for the feedback will be sent around still today.
• PSPO is tracking ALL major activities associated in all SASEs in the presentation shown. Missing items to be reported to G. Wellenreuther. Will be revisited on a ca. monthly timescale
• Planning for the next shutdown in December should commence in early November (= after the upcoming shutdown), to allow for proper planning and preparations.
• Despite the priority on SASE1, activities in SASE3 and SASE2 should progress. We still would like to attempt to do first lasing in SASE3 before the November user run!

General

• T. Tschentscher inform about Management Board priorities for the October shut down:
  • Management Board Priority 1 after the Oct shutdown will be the characterization for SASE1 performance. Any still necessary development for this (MCP, HIrex operation; two-way functional DOOCS-Karabo interface and data exchange; etc.) should get highest priority during the shutdown period. It would be good to achieve substantial progress with the DOOCS-Karabo interface before the MAC meeting to avoid general bashing of our controls. The instruments will provide a detailed list to permit support groups (ITDM, CAS, AE) to plan resources.
  • Priority 2: SASE3 completion. It is expected that the machine will anyway be able to reach lasing at SASE3, but this has lower priority at present.

SASE1 Instruments

• ​SPB : 
  • No major issues to report
• FXE:
  • In the next days FXE will work in the commissioning of Gothard & LPD in parallel operation to be ready to test with beam on Saturday.

Electronics

• MPS Interlock for SPB already switched on.
• No further issues to report.

ITDM

• Users have no access to on-line DAQ. They can use off-line cluster, the transfer is 5 min. after the end of the run.
• Out of the shift scientist should work with off-line cluster.

Safety

• There is  a new procedure for tunnel access. Accelerator areas will have to be measured by Safety group before tunnel access release.

General

• Beam was lost due to incident with electron beam hitting & damaging components downstream of the northern dump.
• Goal is to stablish proper conditions for the beam again, last week seemed much better. On Wednesday this week it is expected to have stable beam conditions and sufficient pulse energy for next experiments. 

SASE1 Instruments

• ​SPB : 
  • ​Several persistant problems with Karabo that affect DAQ and Detector. Detector failed on Saturday triggered by the Karabo issues, it took long to recover since a complete power cycle of the Detector was required (30 minutes).
  • CAS is working to fix the problems.

Tunnels

• SASE1:
  • Beam shutter closed during FXE shift, the reasons are not clear. M. Dommach and L. Samoylova to investigate to solve this issue.

Electronics

• MPS Interlock for SPB tested but not switched on. Agreed to switch on this Tuesday.

ITDM

• ITDM report that FXE experienced some problems with the DAQ but they did not inform ITDM . The Experiment team decided to continue and try to figure out by themselves. ITDM and FXE to discuss how to improve the communication for next time.
• Next experiments require Gotthard & LPD in parallel operation ==> to merge Gotthard & LPD to same run control ITDM needs some time to test. Agreed to carry out the tests Tuesday and Wednesday this week, also fine for SPB.

General

To stablish proper conditions for the beam as it was before. On Wednesday to have the mirrors in the correct configuration and machine back to the old conditions at the end of the week.

SASE 1 Instruments

• ​SPB (M. Messerschmidts): 
  • Reported several persistant problems with Karabo that affectd the DAQ and Detector. On Saturday detector falled over and took long time to recover. CAS wokring to fix this issue.
• FXE:
  •  

Tunnels (M. Dommach):

• SASE1:
  • Beam shutters closed during FXE shift. It is not clear the reasons why this happened, to investigate.

Electronics (P. Gessler)

• MPS Interlock tested but not swichted on. SPB agreed to switch on the MPS tomorrow.

ITDM (K. Wrona)

• FXE was runnig  experiments with problems in DAQ, the experiment this was not reported to ITDM
• Next experiments require Gotthard & LPD in parallel operation ==> to merge Gotthard & LPD to same run control ITDM needs some time to test, agreed to perform these tests Tuesday and Wednesday this week.

Software

• FXE:
  • Still daily meetings, prepare LPD & Gotthard
  • Working on GreatEyes, too
• SPB
  • Configure slow-data cameras
  • Laser project is running in CAS
• SASE3:
  • C. Youngman is the CAS-responsible, should collect requirements to compile master equipment list for SASE3 ==> to be compared against MEL SASE1 to identify additional work required.
• SASE1:
  • Loops & Karabo will be updated together.

General

• First users have done experiments - despite the current problems it appears as if everybody was able to take some data for future publications.

Short Report from SASE1 Instruments

• ​SPB (A. Mancuso): 
  • ​Beam was lost due to incident with electron beam hitting & damaging components downstream of the northern dump.
  • Currently only single bunch operation
  • Lots of work to be done in Oct. shutdown, Adrian will provide a list to Thomas Tschentscher
• FXE (T. Tschentscher):
  • ​Problem with the Tangerine-laser affects PP-experiment ==> to be fixed on Tuesday
  • Consider to switch to oscillator only until then ==> lower repetition rate, lower OL pulse energy
  • Next experiments require Gotthard & LPD in parallel operation ==> merge Gotthard & LPD to same run control next week before user run.
  • Today, test with DAQ and Gotthard was successful, but Gotthard has never seen XFEL X-rays so far. ==> Test with beam could happen potentially Monday night (instead of user experiment)

Tunnels (M. Dommach, J. Grünert):

• SASE1:
  • Few issues with XGM, have been or are being solved.
  • It was suggested to put the Hirex-grating into the beam while FXE is taking beam to measure / commission parasitically. But it appears next week neither Naresh nor Jan will be available.
• SASE3:
  • ​Due to the electron beam incident the first vacuum sections have been vented, there is most probably a hole in the V0, but only Rad. Safety to access the tunnels right now. ZZ/Access by anyone else only after clearance through SRP - working there is probably only possible in Octorb
  • Beam did hit the beam pipe apparently just upstream of the transmissive imager. Imager and further (vacuum) electronics seems to have been damaged in the upstream part of XTD10.
  • Due to this incident, it should be reconsidered if dosimeters are required in XTD10, too. SRP did unfortunately not participate, and thus was not able to comment.

Laser

• Working still on improving the laser
• Issue regarding motors coming back to their position is most probably a firmware/options issue

Detectors

• AGIPD:
  • ​According to Yolanta "operates better than expected"
• LPD
  • ​Also operates better than expected
  • Configuration of LPD is getting messed up by people working in parallel / unclear status of the detectors Gotthard & LPD ==> There should be a responsible for the detector, who is present in the control room and can allow remote access to work with the detectors / run configuration. ==> These steps should be well-documented in the FXE-Logbook.
  • K. Wrona: Next week will be better with just one run controller.

Electronics (P. Gessler)

• There is an issue with some motors & encoder @ SPB.
• AE will finish the work on the last loops in SASE1.
• WP79 needed & got support by AE.

ITDM (K. Wrona)

• DAQ for the tunnels is setup. ==> XGM-run control for the tunnel is to be tried.
• Slow data: It is an issue how and how fast to store slow data (lots of properties which do not change).

Software

• FXE:
  • Still daily meetings, prepare LPD & Gotthard
  • Working on GreatEyes, too
• SPB
  • Configure slow-data cameras
  • Laser project is running in CAS
• SASE3:
  • C. Youngman is the CAS-responsible, should collect requirements to compile master equipment list for SASE3 ==> to be compared against MEL SASE1 to identify additional work required.
• SASE1:
  • Loops & Karabo will be updated together.

October Shutdown:

• SASE1
  • No major items here currently, focus is on SASE3 / XTD10.
• SASE3
  • First priority is to get all items required for first lasing up & running ==> Vacuum system including anything up to the absorber.
  • CAS is starting to set up Karabo and all controls.
  • ITDM will also start to work, but does not require access to the tunnel.
  • C. Youngman to generate MEL from input from the groups ==> invites to a meeting if necessary.
  • Eplan for PES will not be available on time ==> has to be pumped in a provisional fashion.

General

• First user experiments ended on Monday evening/Tuesday morning
• They are considered a great success and overall the instruments worked better than expected
• The S1S/S3R meeting on Friday happens at 13:00 this week due to SAC

SPB

• Karabo is freezing up much less frequently than previously
• The latency of data being available for online analysis seems to be increasing
• Todos:
  • Update the laser loop (11) today
• Please keep in mind that updating the PLC loops requires a lot of hand work from the instrument afterwards and should not be done during beam time

FXE

• FXE was not represented
• The parallel operation of Gotthard and LPD was discussed. This is currently not possible. But this restriction was put deliberatly in order not to compromise LPD operation. It can be lifted whenever requested. However, the incoming user group will only need LPD. Hence this should be postponed for one week

AE

• Preparations are ongoing for work on SASE3 tunnel during October shutdown
• Prepartions are on done to connect the EPS in SPB to the DESY MPS system

CAS

• The second stage of the SPB-CAS and SPB-FXE projects has been started
• They include additional functionality that is required for user operation in November and also for the operation with the optical laser
• The next Karabo release is being prepared
• Next thing on the list is to implement the slow data acquisition for the tunnels

Dear all,

XTD9 will be accessible tomorrow until the afternoon, but access should be communicated to M. Dommach, H. Sinn and T. Tschentscher. Martin will organize a search team for the afternoon.

https://docs.xfel.eu/share/page/site/PSC/wiki-page?title=Tunnel_access_schedules

Cheers, Gerd

General

• User run is currently going well. Thanks to everybody!
• Preparations need to be made for the October shutdown. Information will be collected by PSPO and T. Tschentscher. Care must be taken that the relevant people are available. Priority will be given to XTD10!

Short Report from SASE1 Instruments

• ​SPB: 
  • ​First user shift last night
  • No hickup from accelerator
  • Focus is still too large (12 - 15 um) and beam pointing and beam position are unstable
  • Calibrations were done with AGIPD using powder. 
  • DAQ ran stably
• FXE:
  • ​No report as FXE is currently on shift

Tunnels

• Optics:
  • ​Reminder: The last two metal valves in the FXE and SPB beam lines are currently not in the interlock. Hence the beam could hit them if no attention is paid. This has been fixed in the firmware but will only become active after the next reboot. This will not happen before October
  • Switching between instruments is done using a macro by Harald. It worked without hickups so far. Nevertheless, one should attenuate the beam before moving the mirrors
  • It is important to put relevant info into the operations log book. In particular since all the user log books are closed
• Diagnostics:
  • ​XGM data is now available both via DOOCS and Karabo and can be put into the DAQ stream. However, this data needs to be included. This has not been done so far
  • The XGM data should also be stored for the purpose of optimizing the facility. However, if stored with the user data, access will be difficult
  • Parallel storing of XGM and user data is not possilble currently

Laser

• Work is still progressing in line with laser delivery in November. However, the time is getting tight and overtime requests have been filed for the whole group
• Drifts of the laser beam are being observed that do not correlate with temperature and humidity. A feed back is being worked on
• A fix has been prepared by CAS for the motor problem reported earlier. However, due to the high work load from user operation this could not be tested yet. It is scheduled for next week
• DOOCSGATE was updated to allow adjustment of synchronisation

Detectors

• AGIPD:
  • ​DAQ ran stably 
  • Users took calibration data last night that allows to calibrate the different gain stages
  • A. Mancuso showed nice data on his laptop with very clean rings from the glas in the beam
• LPD
  • ​Not used yesterday
  • Should take data today
  • The calibration pipeline on the Maxwell Cluster is now enabled allowing calibrations to be calculated for both detectors

Electronics

• All instruments loops were updated before the user experiments for DAQ and for failsafe operation with train id injection
• Additional signals were prepared for the MPS system (Vacuum ok, end switches, pulse picker beam pattern). This is not yet integrated
• ZZ happened last Tuesday in XTD2 for CRL and MCP. On CRL significant problems with the cabling were identified (wrong connections, sparks in connectors). The sparks are probably the reason for the broken Beckhoff terminals. Fix can only be done in October
• In October the remaining tunnel loops with also be updated

Software

• 90% of personnel is currently working supporting the user operation in SASE1
• A hot fix for the data logger was deployed. 
• Instrument user shifts will be supported by 2 CAS people at least until end of next week. 
• Remaining personnel will work on the backlog, e. g. fixing the motor problems in the laser
• FXE:
  • DAQ for Gotthardt was deployed yesterday
  • Scantool was updated
  • Work continues on the GreatEyes detector. Currently it only works in Win7 and not in LINUX
• SPB
  • Doocs bridge is operational and slow data can be recorded, e. g. e-beam energy, K param
  • Users also made first use of the ZeroMQ tool 

General

• User run is currently going well. Thanks to everybody!
• Preparations need to be made for the October shutdown. Information will be collected by PSPO and T. Tschentscher. Care must be taken that the relevant people are available. Priority will be given to XTD10!

Short Report from SASE1 Instruments

• ​SPB: 
  • ​First user shift last night
  • No hickup from accelerator
  • Focus is still too large (12 - 15 um) and beam pointing and beam position are unstable
  • Calibrations were done with AGIPD using powder. 
  • DAQ ran stably
• FXE:
  • ​No report as FXE is currently on shift

Tunnels

• Optics:
  • ​Reminder: The last two metal valves in the FXE and SPB beam lines are currently not in the interlock. Hence the beam could hit them if no attention is paid. This has been fixed in the firmware but will only become active after the next reboot. This will not happen before October
  • Switching between instruments is done using a macro by Harald. It worked without hickups so far. Nevertheless, one should attenuate the beam before moving the mirrors
  • It is important to put relevant info into the operations log book. In particular since all the user log books are closed
• Diagnostics:
  • ​XGM data is now available both via DOOCS and Karabo and can be put into the DAQ stream. However, this data needs to be included. This has not been done so far
  • The XGM data should also be stored for the purpose of optimizing the facility. However, if stored with the user data, access will be difficult
  • Parallel storing of XGM and user data is not possilble currently

Laser

• Work is still progressing in line with laser delivery in November. However, the time is getting tight and overtime requests have been filed for the whole group
• Drifts of the laser beam are being observed that do not correlate with temperature and humidity. A feed back is being worked on
• A fix has been prepared by CAS for the motor problem reported earlier. However, due to the high work load from user operation this could not be tested yet. It is scheduled for next week
• DOOCSGATE was updated to allow adjustment of synchronisation

Detectors

• AGIPD:
  • ​DAQ ran stably 
  • Users took calibration data last night that allows to calibrate the different gain stages
  • A. Mancuso showed nice data on his laptop with very clean rings from the glas in the beam
• LPD
  • ​Not used yesterday
  • Should take data today
  • The calibration pipeline on the Maxwell Cluster is now enabled allowing calibrations to be calculated for both detectors

Electronics

• All instruments loops were updated before the user experiments for DAQ and for failsafe operation with train id injection
• Additional signals were prepared for the MPS system (Vacuum ok, end switches, pulse picker beam pattern). This is not yet integrated
• ZZ happened last Tuesday in XTD2 for CRL and MCP. On CRL significant problems with the cabling were identified (wrong connections, sparks in connectors). The sparks are probably the reason for the broken Beckhoff terminals. Fix can only be done in October
• In October the remaining tunnel loops with also be updated

Software

• 90% of personnel is currently working supporting the user operation in SASE1
• A hot fix for the data logger was deployed. 
• Instrument user shifts will be supported by 2 CAS people at least until end of next week. 
• Remaining personnel will work on the backlog, e. g. fixing the motor problems in the laser
• FXE:
  • DAQ for Gotthardt was deployed yesterday
  • Scantool was updated
  • Work continues on the GreatEyes detector. Currently it only works in Win7 and not in LINUX
• SPB
  • Doocs bridge is operational and slow data can be recorded, e. g. e-beam energy, K param
  • Users also made first use of the ZeroMQ tool 

Dear all,

I updated the tunnel access schedule to reflect the access to the XTDs tomorrow.

Cheers, Gerd

Dear all,

I updated the tunnel access schedule to reflect the access to the XTDs tomorrow.

Cheers, Gerd

General

• ​More or less continuous beam delivery over the weekend
• Beam was lost 2 times. Took almost 2h to recover in the second case
• The stability of the machine was poor. 
• SPB cannot achieve a good focus and FXE reports sync problems as the timining jumps by 220ns (1 bucket) from train to train

SPB

• Liquid jet could be operated with water for an entire shift
• Images were acquired both with powder samples as well as with the water jet
• A lot of flat field data was taken for AGIPD calibration
• One camera had a problem and CAS was called in
• There is unexpected behaviour with limit switches. Suspicion from CAS: A SW flag might be incorrectly set. A. Silenzi and B. Weinhausen will investigate)

FXE

• As stated above, the timing jumps in machine operation render pump-probe experiments impossible. A way out might be 4.5MHz operation which has other issues
• Need a lot more experience with the new scan tool
• Request is made for training on the configurator tool: ITDM reports that they have set up a script to set the many parameters from stored values
• There is a fundamental problem that the scan tools does not see some parameters available in DOOCs. Hence scanning is not really possible right now.

AE

• There are at least two arms in the XTD2 CRL in error. This requires access. Possibly bundle with the ZZ request of W. Freund
• Two loops in SPB still require update (loops5/12)
• It is not clear why many configuration parameters have to be put back by hand after a loop update. N. Jardon and B. Weinhausen will check

ITDM

• Many tests over the weekend for DAQ of slow data with SPB
• Problems were observed because train IDs were zero
• Also time stamps showed values of many hundred hours ago
• CAS suspects that this might be due to wrong configuration of some devices (use_timeserver flag)

General

• User operation starts on Thursday 14 September 08:00 in FXE
• Instruments alternate every 12h switching at 0800 and 2000
• A common SASE1 operations log book has been set up here. It is accessible for all inside XFEL
• The PIs of the first 6 user groups have been informed that the scope of their experiments will be rather "user-assisted commissioning". In compensation they will get more beam time in March 2018 if the objectives of their proposals could not be reached

SPB

• An effort was made with ACC to achieve good conditions for focussing. So far this has not been successful
• At 2200 on thursday these efforts were abandoned as there were no more ideas to try
• Also the power level in the beam was rather low
• Negative effects of running the detector on KARABO responsiveness are much reduced now
• This night KARABO froze up completely (no detector running) and no support from CAS was available (No response from calling the OCD mobile)

FXE

• Cross calibration effort for the beam energy was performed with HIREX. This succeeded after some efforts.
• The absolute energy scale could be established to within 70 eV. The fluctuations (averaged over several seconds) are around 20 eV
• Effort to synchronize the tangerine laser beam and to bring it to the sample continues. The quality of the sync signal is not very good. There are big signal losses in the fiber

Laser

• Still two problems with KARABO: Cannot reliably read date from wave guides and the python to doocs interfaces does not implement essential data types
• Currently working on aligning the NOPA
• The fact that the synch signal will not be available until end Sept puts a strain on the planned dates for beam delivery
• The full SYNC hutch will not be available until end Dec

Detectors

• The new GUI version gives good response while detector is running
• SPB was instructed on how to use the offline calibration
• LPD was brought into  the SASE1 broker topic
• Coolant leak in LPD was fixed but 1 super module had to be removed

Electronics

• A failsafe mechanism has been implemented in the firmware framework that allows the PLCs to continue running even if train ids should not be available from the timing system
• This requires an upgrade of all loops. 
• One encoder problem in SPB was identified as a problem with the cable
• One motor problem in SPB (injector y motion) is suspected to be a faulty terminal. The motor was moved to a test crate where it works fine. This can stay like this for the moment

CAS

• KARABO 2.1.16 was released. This release is not mandatory but recommended
• Work is ongoing on the DOOCS bridge
• XGM data is availalble now but requires a check by J. Grünert
• Work continues on the Gotthardt and GreatEyes detectors
• In the case of GreatEyes the vendor has been contacted and the reply is being awaited
• Good progress was made with data analysis on the ONDA cluster

ITDM

• Accounts for users are prepared. 
• Maxwell cluster is ready for offline analysis. Example files and programs are available
• Several PCs in XHQ have been set up that have direct access to the control network
• These PCs are only for monitoring experiment activities. They are not for general use and are not connected to the internet.

Dear all,

I updated the TAS to incorporate the newest dates for the October shutdown (currently 4.10.-23.10.):

https://docs.xfel.eu/share/page/site/PSC/wiki-page?title=Tunnel_access_schedules

Cheers, Gerd

FXE

• Still working on getting the laser on the sample
• Commissioning the recently received intensity monitor
• Work is also ongoing on the Gotthardt detector
• LPD is still in its own "Topic" but will be moved to the SASE1 "Topic" today

SPB

• Problem developed with one ELMO motor. It was moved to a test crate where it worked
• All loops were updated to allow slow data integration into DAQ
• AGIPD running improved significantly in stability after implementing the latest nightly build of KARABO
• ITDM team has various testing tools operational on the different channels of the detector
• Charge injection scan was possible for the first time without significant degradation of KARABO response

ITDM

• Slow data is now integrated for SPB
• Request is made for the list of data sources to integrate with FXE

AE

• PG points out that it was always foreseen that the timestamp/train ID integration would be done in software
• A HW solution was implemented during his absence to generate train IDs in a  PLC. He considers this to add significant risks.
• The HW solution will not be implemented in the tunnels to avoid unexpected behaviour during the user run
• Hence a work around solution needs to be found how to uniquely identify slow tunnel data with train IDs

Discussion about time stamps and train ID

• The summary of a longer discussion about the subject leads to the following conclusions:
• Slow tunnel data could be logged via a python script that also stores time stamps and train ids. An integration of this data with the fast data would have to be done offline post mortem
• Different opinions exist whether the association between time stamps and train ids in the KARABO data logger is unique and compatible with the train ids used in DAQ
• It is decided that this will be checked now and the result reported during the Friday S1R meeting

Announcement by ITDM

• The elog will be upgraded this afternoon
• The online cluster servers will be rebooted this afternoon