Interlocks in the northern fan are broken! 

since tunnel access is now possible 

J. Eidam, V. Bondor, T. Freyermuth checked Ion pump controller settings in XTD2 and XTD9.

Many controllers were found to have incorrect settings. All pumps in XTD2 now respond and give pressure readings. There remains the problem that the PLC is looking for the wrong channel in the case where 2 pumps are connected to one controller (Is 1 & 3 and PLC looks for 1 & 2). J. Eidam now checks channel numbers on all controller. T. Freyermuth then regenerates the firmware. A. Silenzi set up pressure recording for pumps P10050I, P10060I and P10200I to run overnight. 

Tunnel Open.

Vacuum Loop:

Status:

• Communication problem with Ion pump controllers is fixed after adjusting controller settings
• Loop is now down to allow inclusion of XGM

EPS Loop:

Status:

• Temperature sensors return reasonable values after EPS loop fix
• EPS to MPS interface is working but fiber to central desy interface still lacking

Motion Loop:

Status:

• Should be up for testing PBLMs and Imagers

Imagers

Status:

• Test of FEL imager ok, but hampered by occasional slow response of the system
• SR Imager needs work on the driver

Tasks for today:

• Include XGM in Vacuum loop (N. Jardon, M. Planas, T. Matsopoulos, V. Bondar)
• Test updated MC2 lib with PBLM in the tunnels (N. Gerasimova, M. Jidda)
• Work on camera driver for SR imager (A. Koch and W. Ehsan)
• Test motion system of the imagers in the tunnels (A. Koch and W. Ehsan)
• Monitor stability and responsiveness of GUI Server and Log Servers
• Set up monitoring of temperatures and pressures overnight
• Push DESY to get fiber connection to MPS (P. Gessler)

Tasks for tomorrow:

• Terminals need to be added and firmware adjustments made in motion loop (take loop down as early as possible for one hour)
• Test EPS inputs to MPS system with DESY people
• Power down crate 1.15 for grounding. Could take longer than one day

Other topics

• N. Jardon needs complete info of motor names in rack 1.18

I expect that some of us may need the weekend as a reserve (e. g. mirror installation). So we should probably say no. Let's discuss more tomorrow at 09:30 

 Tunnel Open.

Mirrors:

Status:

• Vacuum will be closed on M1
• M2 installation tomorrow or latest on Monday

Vacuum Loop:

Status:

• Loop is up
• XGM was integrated but tests needed on the interlocks. Hence valves to DPS now in manual mode (overrides interlock)
• Interface to MPS has been successfully tested
• Need to test fast valve connection to VAC and to MPS (Status re cabling was unclear this morning)
• A few pumps still  have communication problems (to be discussed between AE and CAS)

EPS Loop:

Status:

• AE did most of the missing wiring
• Description of EPS interlock still missing. It is planned to start with just one imager in for first beam commissioning
• One fiber connection from Balcony room to DESY still to be done by DESY

Motion Loop:

Status:

• Problem on ELMO motors with linear drive persists. Needs additional testing

Imagers

Status:

• Both motors working on FEL imager
• Work should now concentrate on SR imager

Karabo:

Status:

• Problem in TCP implementation identified that is suspected to cause the long delays observed e. g. with the imagers. Now needs extensive testing
• Still no data recording achieved
• Stability still needs monitoring

Tasks for today:

• Work on GUI for the vacuum loop (J. Eidam, V. Bondar)
• Test XGM interlocks (N. Jardon, M. Planas, T. Matsopoulos)
• Continue tests with PBLM in the tunnels (M. Jidda)
• Test motion system of the imagers in the tunnels (A. Koch and W. Ehsan)
• Monitor stability and responsiveness of GUI Server and Log Servers (A. Silenzi)
• Set up monitoring of temperatures and pressures overnight (A. Silenzi)
• Push DESY to install fiber connection from Balcony rooms to MPS (P. Gessler)

Tasks for tomorrow:

• Put XGM into the vacuum interlock
• Perform careful testing of all interlock conditions for the vacuum

Other topics

• Regular SASE1 readiness meeting at 09:00 tomorrow in XHQ E1.173
• Need to perform tests with EPS interlock conditions
• Need to test fast valve connection to VAC and to MPS
• Gas system for diagnostics needs to be flushed

Tunnel Open.

Mirrors:

Status:

• Both mirrors M1 & M2 installed
• Vacuum being closed in M2 today should be ready for ion pumps tomorrow
• Surveying work going on (see email by M. Schlösser below)

Vacuum Loop:

Status:

• Needs reconfig for XGM in XTD9
• Interlock tests on XGM in XTD2 should go on. 
• 2 Turbopumps still have a communication problem (J. Tolkiehn is working on this)
• 6 Ion pumps in XTD9 still have communication problems (list was given by AS to JE)
• Systematic testing according to the list by J. Eidam with V. Bondar starting this afternoon

EPS Loop:

Status:

• One terminal needs to be exchanged for FEL Imager 
• Description of EPS interlock still missing. It is planned to start with just one imager in for first beam commissioning
• One fiber connection from Balcony room to DESY still to be done by DESY. AFter this testing of communication should start

Motion Loop:

Status:

• Quick fix for motors not stopping was deployed on Friday. Now TF is working on a better fix to be deployed this evening

Imagers

Status:

• EPS switch on FEL imager should be checked after exchange of terminal
• Photonics camera driver still not working but not critical for tunnel closure
• Work should now concentrate on SR imager

Karabo:

Status:

• New version with TCP fix needs to be deployed. This should also be done to the local software run by users.

Tasks for today:

Note: Loop reconfiguration and updates of Karabo to be done in the morning. Testing can resume after lunch. Status updates should please be recorded in the log

• Reconfigure vacuum and motion loops (updates for XGM interlock, motors not stopping)
• Replace broken terminal in EPS loop for FEL imager 
• Continue test XGM interlocks (N. Jardon, M. Planas, T. Matsopoulos)
• Go through systematic test of the vacuum components (J. Eidam, V. Bondar)
• Continue tests with PBLM in the tunnels (M. Jidda)
• Test motion system of the imagers in the tunnels (A. Koch and W. Ehsan)
• Monitor stability and responsiveness of GUI Server and Log Servers (A. Silenzi)
• Set up monitoring of temperatures and pressures overnight (A. Silenzi)
• Test communication between XFEL and DESY MPS once fiber connection from Balcony rooms to MPS is available (B. Fernandes)

Tasks for tomorrow:

• Put XGM into the vacuum interlock
• Continues testing of all interlock conditions for the vacuum

Other topics

• Surveying is going on for mirror chambers M1 and M2 in XTD2
• We need a well defined startup configuration of PLC, Karabo, Parameters, List of devices (A. Silenzi)

Email by M. Schlösser re alignment

Hi Tobias, hi Markus, Hi Winni,

Tobias, we discussed briefly the schedule for the T9 and T10 beamlines for the next few days, when we met in the tunnel yesterday.

From what i understand it is impossible to finish T10 until April 11th from the alignment and vacuum side. And probably more important, this also holds true for T9. There is at least one major problem with the alignment of the mirror chambers of T9 in XTD2, which will need some additional days to solve.
From my understanding at least the T9 beamline should be closed and aligned before putting SASE1 in operation. While it will of course be possible to send electrons down to the XSDU2 dump, it will not be possible to send photons to the experimental hall with the current state of the beamline.

Since it is not possible to work in XTD10 while the SASE1 electron beamline is in operation, i would propose to also finish this beamline before SASE1 electron startup. Since there is major work to do in XTD10 to finish the beamline, there is no hope to  do the remaining work during maintenance days. Finishing the beamline would require a major shutdown of the SASE1 branch later.

Since there will be no alternative to send the beam to (e.g. SASE2) for the next year (?), it does not make sense to stop work in XTD10 now, just to continue later then, without any overall benefit for the machine.

Of course i don't have a complete overview of all the machine schedule, but from my point of view it would make more sense to finish work in the northern branch, at least to align all components and to close the vacuum system, even if that means some more weeks before the SASE1 startup.

cu
Markus

Tunnel Open.

Mirrors:

Status:

• Vacuum on M2 should be good enough to switch on ion pumps
• Surveying work going on 

Vacuum Loop:

Status:

• Several vacuum sections successfully tested in XTD9 yesterday
• Tests need to proceed in XTD2 today
• The protection switch on the ion pumps cannot be actuated remotely 
• Loop needs an update for the XGM
• XGM was in the vacuum interlock overnight. Will be taken out during the day but should be put back at the end of the day
• Interlock of High Voltage with vacuum in XGM not working yet
• V0 valve needs to be exercised in collaboration with DESY 

EPS Loop:

Status:

• The terminal exchanged for the FEL imager was not the broken one. Another terminal needs to be exchanged today
• The MCP needs to be moved out of the beam manually. This will be checked using the EPS switch. For this the EPS loop is needed

Motion Loop:

Status:

• An improved fix for the motors not stopping was deployed yesterday
• The loop needs to be reconfigured to replace the SRA motors 
• One broken motor was exchanged on the mirror chambers and needs to be tested

Imagers

Status:

• All motion tests in XTD2 done. Now continue in XTD9
• Photonics camera driver still not working but not critical for tunnel closure (there is also a workaround by the name of ebus player)
• EPS switch on FEL imager needs testing  after terminal replacement

Karabo:

Status:

• New version with TCP was deployed. Experience overnight is good

Tasks for today:

Note: Loop reconfiguration and updates of Karabo to be done in the morning. Testing can resume after lunch. Status updates should please be recorded in the log

• Reconfigure vacuum, motion loop (updates for XGM interlock, SRA motors)
• Replace broken terminal in EPS loop for FEL imager 
• Move MCP out of the beam manually and check using EPS
• Continue systematic test of the vacuum components (J. Eidam, V. Bondar)
• Test EPS switch on FEL imager after terminal exchange (A. Koch and W. Ehsan)
• Monitor stability and responsiveness of GUI Server and Log Servers (A. Silenzi)
• Set up monitoring of temperatures and pressures overnight (A. Silenzi)
• Test V0 and absorber

Tasks for tomorrow:

• Tunnels closed
• All loops should run stable
• No or only minimal interference with Karabo
• Continue tests from remote and check stability and robustness of systems

Other topics

• Tunnels open over the Easter weekend and also during the day on Tuesday 18 April
• There will be one more standup 09:30 meeting tomorrow (Wednesday)
• There will be a SASE Readiness Meeting at 09:00 on Thursday

 Tunnel Closed.

Mirrors:

Status:

• No information on status of mirrors and PBLM since Optics group was not at the meeting

Vacuum Loop:

Status:

• All vacuum sections were successfully tested in XTD2 yesterday (work ended very late)
• DPS was tested successfully and all interlocks and remote controls were working
• The protection switch on the ion pumps can still not be actuated remotely 
• XGMs in XTD2 and XTD9 fully in the interlock 
• V0 valve and absorber were moved and interlock tested. Communication with DESY was also tested and is ok.

EPS Loop:

Status:

• No explicit information today (see remark above)

Motion Loop:

Status:

• No explicit information today (see remark above)

Imagers

Status:

• All imagers in XTD2 are ok
• Trigger is not working on one of three imagers. 
• Testing proceeded in XTD9 yesterday
• One camera in one pop-in can not be reached (Network problem?)

Karabo:

Status:

• Running stably
• Work required now:
• Photonics Camera driver
• Clean up the project database
• Clean up master equipment list

Tasks for today:

Note: All loops should be left running and no changes to Karabo.

• Proceed with remote testing
• Check out adequacy of scenes
• Monitor stability and responsiveness of GUI Server and Log Servers 
• Set up monitoring of temperatures and pressures overnight (A. Silenzi)
• Cleanup Karabo

Tasks for tomorrow:

• Tunnels should re-open tomorrow
• Continue tests from remote and check stability and robustness of systems

Other topics

• Tunnels open over the Easter weekend and also during the day on Tuesday 18 April
• There will be a SASE Readiness Meeting at 09:00 on Thursday in XHQ E1.173

 Tunnel Closed until approx 1300, Open over the Easter Weekend until Tuesday 1500.

Vacuum:

• All valves and pumps in XTD2 are working and can be operated remotely
• The vacuum system including DPS and XGM is interlocked. Interlocks have been tested and are working properly
• The fast valve and the absorber at the interface to the electron beam vacuum are working and interlocked. The communication with DESY has been successfully tested
• Some issue exist when switching turbo pumps on/off in Karabo. Then erratic behaviour is observed. Doing the same remotely communicating via TCP directly works ok
• More testing needs to be done in XTD9

Mirrors, PBLMs, SRA, Attenuator

• M1 and M2 are installed and under vacuum. M3 will be installed after easter
• 3 out of 5 motors can be operated in M1 and M2. The mirrors have been moved into a safe position
• PBLM motors (ELMO driver) can be operated (started and stopped) but operation is still problematic (motors stop in wrong position, movement not linear)
• On the SRA the connection to two motors is interchanged
• On the attenuator certain motors occasionally get stuck
• Slits have been moved out so the beam line is safe for first operation

Imagers:

•  
• All imagers tested, motors and cameras, motion loop, EPS loop, for 3 imagers XTD2, and 3 imagers XTD9.
• All blocking issues concerning tunnel closure solved.
• Some remaining points that can be treated remotely: Trigger, software delays, others.
• The Photonics Camera driver is now working in Karabo.
• Cameras can currently be read out at 3 Hz which is too slow but ok for first beam commissioning

XGM:

•  
• XGM inserted into vacuum loop and interlock (in XTD2 and XTD9)
•  
• Grounding completed in XTD2+XTD9 (power cycle of rack was needed)
• Gases ready to be used in XTD2
• XGM @ XTD2 ready for beam         (need DOOCS middle-layer servers activated) 

FXE

• Testing finished for all devices in loop1
• Now waiting for loops 2 and beyond
•  

SPB

• SPB tunnel loop deployed. Testing can start next week
• For the Optics hutch some Beckhoff crates are still missing 
•  

PLC

• Fixes to MC2 library (ELMO and TECHNOSOFT motors) will deployed next week and then tested in XTD9
• FXE loop 2 was modified and loops 3&4 are deployed
• SPB loop 1 to be deployed today. Working on loop 2

KARABO

• Slow response appears to be solved
• There are other not so severe bugs on the backlog
• Currently all high priority components are supported
• No requires cleanup and day-one component list
• Monitor stability and robustness

Tasks for today:

Note: All loops should be left running and no changes to Karabo.

• Fix the issue with the disconnected vacuum loop after tunnel reopens

Tasks for the weekend:

• Relax and look for Easter Eggs
• AE and CAS will provide contacts on a good will/best effort basis in case an intervention should be necessary

Radiation Interlock Tests are finished. Tunnels XTD9 and XTD10 up to the fence at the dump can be accessed right now. Magnet current interlock tests still takes a bit of time (ca. 1h). Once this is also done, I shall post a note 

All northern tunnels XTD2/4/9/10 are fully accessible again! 

XTD Tunnels open until 15:00. Later XTD2 and XTD4 are closed, XTD9/10 remain open

Vacuum Loop:

Status:

• One broken Beckhoff terminal was exchanged before the weekend. This was the first failure of this type in 2 years
• After this the system ran without hickup over the Easter weekend
• The fix applied for ion pumps that avoids triggering an interlock condition when there is a communication failure on the serial output should be also applied now to other vacuum device, e. g. the turbo pumps

EPS Loop:

Status:

• Requires an update to be done asap so that N. Gerassimova can continue tests with the PBLMs afterwards

Motion Loop:

Status:

• Movement of the PBLM motors (ELMO controller) is not satisfactory yet. Motors start and stop but the movement is uneven and stops not always requested
• There is no test set up in the lab. So tests have to be done in the tunnels (XTD9)

PBLMs:

• All systems in XTD2 were tested and cameras calibrated including some at the beginning of XTD9
• Work continues on remaining systems in XTD9
• System with motor movement is still unsatisfactory (see above)

Imagers

Status:

• 2 Imagers in XTD2 have no trigger signal. Suspicion is that this might be configuration problem. P. Gessler will investigate
• One pop-in (245) in XTD9 cannot be reached with IP. Suspicion is incorrect network configuration -> K. Fillipakopoulos

SPB Tunnel components

• Signal pins of the Attenuator crate were tested. DC voltage is seen there at different levels on different pins. This looks problematic -> P. Gessler

Karabo:

Status:

• Ran stably over the weekend 

Tasks for today:

Note: All loops should be left running and no changes to Karabo.

• Take equipment and junk out of tunnels
• Check trigger cabling for imagers in XTD2
• Check PBLM motor movement and continue testing in XTD9

Other topics

• Controlled access to tunnels is possible after 1500. Coordination with T. Haas and the DESY run coordination

 Author: Decking

Goals:
- Operation with 10 GeV, 500 pC, 5 kA, 30 bunch
- Increase gradient limits in RF stations
- Technical comissioning of north branch 

XTIN closed all week
XTL open till Tue, 11:00
XTD2 open till Tue, 15:00
XTD4 open till Tue, 15:00
XTD9&XTD10 open all week


|17/04 Mo M |  Easter shutdown
|17/04 Mo A |  Easter shutdown
|17/04 Mo N |  Easter shutdown
|18/04 Tu M |  Interlock pre-test CS8, set XTL interlock at 11:00, Injector beam operation
|18/04 Tu A |  A2 calibration after phase shifter change, Beam operation  to TLD 10 GeV, set interlock XTD2-XTD4
|18/04 Tu N |  Beam operation  to TLD 10 GeV, 30 bunches, 0.5 nC
|19/04 We M |  Slice emittance in BC2; Magnet PS test XTD2-XTD4 
|19/04 We A |  BCM, BAM EO, commissioning; Magnet PS test XTD2-XTD4 
|19/04 We N |  BCM, BAM EO, commissioning; Magnet PS test XTD2-XTD4 
|20/04 Th M |  Collimation set-up; Magnet PS test XTD2-XTD4 
|20/04 Th A |  BCM, BAM EO, commissioning; Magnet PS test XTD2-XTD4 
|20/04 Th N |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC; Magnet PS test XTD2-XTD4 
|21/04 Fr M |  Collimation set-up with 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|21/04 Fr A |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|21/04 Fr N |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|22/04 Sa M |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|22/04 Sa A |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|22/04 Sa N |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|23/04 Su M |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|23/04 Su A |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|23/04 Su N |  Beam operation  to TLD 12 GeV, 30 bunches, 0.5 nC, 5 kA; Magnet PS test XTD2-XTD4 
|24/04 Mo M |  Beam set-up 12 GeV, 1 bunches, 0.1 nC, 1 Hz
|24/04 Mo A |  Beam operation  to TLD 12 GeV, 1 bunches, 0.1 nC, 1 Hz
|24/04 Mo N |  Beam operation  to TLD 12 GeV, 1 bunches, 0.1 nC, 1 Hz

Tunnels XTD2 and XTD4 are closed, XTD9/10 remain open

Vacuum:

• Running stably
• Work continues on M3 in XTD9 and on the vacuum in XTD10 

EPS Loop:

• Input from undulator still missing. This requires  fixing a cable in balcony rooms and then testing

PBLM/Motion Loop:

• Work on the PBLM motors (ELMO controller) continues.
• It appears that the uneven movement is due to improper setting of motor parameters

Imagers

• Trigger problem reported yesterday was due to a cabling issue. Apparently during work on the relevant rack cables were unplugged and then wrongly put back
• Network issue with pop-in (245) in XTD9 solved

SPB Tunnel components

• Crate with "problem on signal pins" was brought to the lab and checked. Everything was ok. Problem was due to spurious measurement.

Karabo:

• PSLIT was tested successfully yesterday
• Behaviour of Karabo when a loop goes down needs to be made more graceful. 
• Cleanup continues

Tasks for today:

Note: All loops should be left running and no changes to Karabo.

• Prepare mirror M3 installation
• Continue testing of PBLMs in XTD9
• Continue testing of SPB tunnel loop

Other topics

• None
   

 Tunnels XTD2 and XTD4 are closed, XTD9/10 remain open

Vacuum:

• PLC/Karabo Running stably
• Local tests of ion pumps in XTD9 being done by J. Eidam
• Work continues on M3 in XTD9 and on the vacuum in XTD10 
• DPS in XTD9 should be integrated into the vacuum loop. This requires a cycling of the loop. Timing should be coordinated with WP74 because of XGM in XTD2. Unfortunately nobody from WP74 attended the meeting. Hence it was decided to perform the work tomorrow morning.

EPS Loop:

• Checks for the signal from the undulators and for the fast valve will be done with DESY MPS today

PBLM/Motion Loop:

• Work on the PBLM motors (ELMO controller) continues.
• Yesterday it was possible to align the screens 
• There is a resource problem when trying to read out the cameras. For this reason an additional server needs to be set up dedicated to acquiring the images from the cameras.

SPB Tunnel components

• Crate that was checked in the lab yesterday was moved back into the tunnel
• The unstable support of the imager was fixed
• B. Weinhausen and M. Messerschmidt are testing
• All modules necessary for loops 1 & 2 were received from Poland
• Waiting for the "Freigabe" of the cables for SPB Optics

FXE

• Loops 1,2 and 4 are waiting for input from EETF
• Loops 3&5 are running
• No visible testing activity from FXE team

Karabo:

• Cleanup continues

Tasks for today:

Note: All loops should be left running and no changes to Karabo.

• Prepare mirror M3 installation
• Continue testing of PBLMs in XTD9
• Continue local tests of ion pumps in XTD9
• Continue testing of SPB tunnel loop

Tasks for tomorrow:

• Cycle vacuum loop for inclusion of DPS in XTD9

Other topics

• Weekly SASE1 Readiness meeting tomorrow at 09:00 in XHQ 1.173
• L. Samoylova requests access to XTD2 to install another webcam
• Magnet current tests will likely continue through Wednesday in XTD2. Maintenance day to be shifted accordingly probably to Thursday/Friday. More information later

 In KW17 there will be NO maintenance day on Tuesday (25.04.) 

 
On Monday (24.04.) morning up to about 11:00 we will have the TÜV approval of CS8. During that time 
 NO access of "other people" to the XTL tunnel is possible. After the TÜV approval 
 up to 13:00 there will be the possibility for URGENT access to the XTL. Access requests 
 have to written to the logbook/access requests entry. 
 
The tunnel XTL/XTIN will stay in interlock, access will be possible by ZZ only. 
 
The northern branch XTD2->XS3->XTD4->XDU2 will stay closed, in order not to interrupt the 
 magnet commissioning. 
 
This elogbook entry was sent to following experts: 
xfel-opl@desy.de RC mailing list  

I added the requests that I was made aware of to the list of access requests for tomorrow. While the interlock in XTD2 will be broken and hence the tunnel is accessible without special procedures, please note the followoing

• Please make sure your request in in the DESY table of access requests 
• You have valid access permissions and two (!) dosimeters, one from XFEL one from DESY

 XTDs Info:

Tunnel XTD2/4 will be accessible today until 1500. Dosimeter and General radiation training required. 

XTD10 will be closed starting this afternoon

Vacuum:

• DPS with interlocks was tested successfully yesterday evening but...
• ... Complete failure of gas sections in both XTD and XTD9 some time tonight. Valves were closed and turbo pumps were off. Reason is still being investigated
•  
• Systematic tests of ion pumps in XTD9 done for 3 vacuum sections. Currently only the pumps are tested. Tests of the interlock will follow
   

Karabo:

• The problem with the GUI server has unfortunately not re-occured. Hence it can currently not be debugged.
• Second GUI server is available for fall back
• Remote reset of TP controllers has been implemented and will be deployed in the next release

PLC

• A problem was found in the MC2 library affecting the ELMO controller.  This only affected the systems deployed in the tunnel. 
• The non-linear behaviour of the PBLM motors was reproduced independently of PLC and KARABO. Suggestion: Could this happen when the motor has to work against vacuum pressure? Evidence: It does not occur in the lab (no vacuum!)
• A video session with the manufacturer is schedule for next week to look at the problem

PBLM/Motion Loop: 

• There is a resource problem when trying to read out the cameras. This problem will be reconsidered once the general issue with the GUI server is solved.
• ASilenzi will discuss offilen with Natalia the acceptance test definition for PBLM
• List of errors and relative solution concerning ELMO absolute encoder implementation being worked out by AE/CAS

EPS

• Logic of EPS was agreed between AE and H. Sinn:
  • Currently only covers devices up to XS3
  • Vacuum ok requires all valves to be out of the way
  • Any screen down  forces single bunch mode
  • All imagers in safe position allows full beam mode
• Meeting next week @ DESY to discuss technical details with MPS group

SPB Tunnel components

• Renishaw encoder can be read out reliably after fix for error signal line
• SPB would like to work on the pulse picker next and is waiting for it to be integrated

FXE

• FXE guys would like to help with tests of Hard X-Ray Mono 

Tasks for today:

• Perform various maintenance tasks in XTD2, e. g. integrate CRLs, exchange photo tubes, exchange gases
• Investigate why gas sections switched off yesterday
• Continue test of vacuum components in XTD9