Update to SUSIM Binary IO MEDM Overview -- Stripping it of Old Fully Functional BIO Infrastructure; Replacing with Reality of Jumpered Switches

J. Kissel

The issues we found with the IM's binary IO motivated me to update the MEDM screen interface to the system -- namely making it more like other HAM Single Stage Suspensions (HSSS) and the top masses of HAM X Double Suspensions (HPDS, HDDS, HTDS, HSDS) which clearly indicate that the HAM-A drivers they use have had their remote binary IO control / readbacks disabled.

At LHO the MEDM screens that call the interface are
    /opt/rtcds/userapps/release/sus/common/medm/haux/
        SUS_CUST_HAUX_MONITOR_OVERVIEW_all.adl
and
    /opt/rtcds/userapps/release/sus/common/medm/hsss
        SUS_CUST_HSSS_OVERVIEW.adl

which now *both* call the same BIO screen, which I've moved
    FROM
    /opt/rtcds/userapps/release/sus/common/medm/
        haux/SUS_CUST_HAUX_BIO_ALL.adl

    TO
        hsss/SUS_CUST_HAUX_BIO_ALL.adl 
then modified and committed the svn location change. See BEFORE and AFTER.

I then edited the following macros to change the SUSTYPE or sustype variables from "IM" or "im" to "HAUX" or "haux."

    /opt/rtcds/userapps/release/sus/common/medm/
        susim1_overview_macro.txt
        susim2_overview_macro.txt
        susim3_overview_macro.txt
        susim4_overview_macro.txt
        susimall_overview_macro.txt
These have *not* been committed to the svn as the macros also contain all of the ADC / DAC / AI / AA / front-end configurations that have diverged for suspensions at L1 and H1. 

Some very late medm screen change commits

It turns out I never committed some medm SUS overview screens to svn after we removed the USER DACKILL back a long time ago, so I just committed them. They are /userapps/sus/common/medm/:

• haux/SUS_CUST_HAUX_OVERVIEW.adl r34206
• opos/SUS_CUST_OPOS_OVERVIEW.adl r34208
• hxds/SUS_CUST_HTDS_OVERVIEW.adl r34211
• omcs/SUS_CUST_OMCS_OVERVIEW.adl r34214

Recovery of IMs exposed double-usage of MC1 and MC3 Binary IO Cards by IMs; Front-end Code Model Prep for Fix

J. Kissel, O. Patane,

Oli and I have moved on to recovering the SUS IMs post their migration from the h1sush2b computer into the newly merged h1sush12 computer / IO chassis system yesterday (see 88519 and 88527), but immediately noticed that the MEDM OVERVIEW screen reported that the test/coil enable bits were in apparently non-functional state (see "before" OVERVIEW and BIO screens).

Thinking through it, and remembering that the IM's binary IO switching had been rendered "defunct" back in July 2022 during their upgrade of HAM-A coil drivers (LHO:64171 manifesting ECRs E2200307, E2400048, and E2500295), we release that the digital representations of the sush2b BIO card read/write had never been removed from the h1susim model. Prior to the sush2b + sush2a = sush12 merge, talking to the sush2b card didn't matter. 

But now that this model is running on the merged chassis, the digital representation of talking to binary card 0 and card 1 means that that both the h1susmc1 and h1susim models are talking to the same BIO card (card 0 and card 1, the lower an upper halves of the physical BIO0 card) in the sush12 chassis! No bueno.

This double comms is confirmed by comparing the top level and BINARY DECODE block of h1susmc1 (userapps svn rev r33947) model's Binary IO communications to the "before" communications within the h1susim model top level (userapps rev r33974).

As such, I've modified the top level of the h1susim model to remove all digital representation of the cards, and sending 85 = 01010101 ("the Test/Coil switch is set to COIL enabling drive from the DAC, and the LP is ON" for each of the 4x suspensions) into the EPICs readback to indicate / match reality, and terminating the top level control request. See top level of the model now committed as rev r34204.

D. Barker, E. von Ries, J. Kissel

This h1susim front-end model change has been installed as of 2025-12-18 18:25 UTC. Dave will likely post an official aLOG eventually.
All signs point toward "success!"

SUS MC1, MC3, PRM, and PR3 Online and Running post sush2a and sush2b merge to sush12

J. Kissel, O. Patane

We've recovered all damping and alignment functionality for H1SUSMC1, H1SUSMC3, H1SUSPRM, and H1SUSPR3  (including turning on L, P. and Y Estimators for PR3); the HAM {Small, Large} Triple Suspensions (HXTS, HSTS, HLTS) on HAM2 after their host computer changed from h1sush2a to h1sush12 and their DACs were upgraded to a 32CH 28-bit LIGO DAC (see analog changes in LHO:88519 and software changes in LHO:88527).

The recovery was relatively simple for these suspensions:
- Untripped the software watchdogs for these HAM2 suspensions (H1:IOP-SUS_MC1_DACKILL_RESET, H1:IOP-SUS_MC3_DACKILL_RESET, H1:IOP-SUS_PRM_DACKILL_RESET, H1:IOP-SUS_PR3_DACKILL_RESET) and the HAM2 seismic system beneath it (H1:IOP-SEI_HAM2_DACKILL_RESET).
- Used SEI_HAM2 guardian to bring HAM2 SEI system to ISI_DAMPED_HEPI_OFFLINE (from them having had their watchdogs trip overnight).
- Left / made sure that SUS Guardians in SAFE and unmanaged
- Added a gain of 2^10 = 1024x in the COILOUTF banks in FM10 to compensate for the 18-bit DAC to 28-bit 
- Turned off inputs to the COILOUTF, untripped watchdogs, turned MASTER SWITCH ON
- Added small 5 count offsets in COILOUTF, one-at-a-time, and sorted out the MEDM overview macro files***
    - lower masses needed adjusted due to the consolidation of DACs
    - Computer name changed from h1sush2a to h1sush12
- Tested functionality of binary IO by switching H1:SUS-{MC1,MC3,PRM,PR3}_BIO_{M1,M2,M3}_STATEREQ into various states confirming that the read backs switch correctly (and at this point, we just assume that the binary OUT is actually switching the coil drivers).
- With the SUS guardian still in SAFE, and the MASTER SWITCH still ON, and watching the top mass OSEMs on ndscope ^^^, 
    - Turned on damping loops one DOF at a time, to confirm that resonant motion exponentially decays as expected without any saturation (reminding ourselves that the DAC saturation limit is now +/-2^27 = +/- 134217728 [DAC ct]_{peak})
    - Turned on alignment offsets to see a significant shift in top mass
- Seeing no issue, used the SUS guardian to bring the suspension to ALIGNED, then back to SAFE, then back to ALIGNED.

*** The MEDM overview macro files are 
    /opt/rtcds/userapps/release/sus/common/medm/
        susmc1_overview_macro.txt
        susmc3_overview_macro.txt
        susprm_overview_macro.txt
        suspr3_overview_macro.txt

^^^ Handy ndscope command line to quickly switch between 'scopes of the top mass EULER basis report of OSEM motion
    $ optic=MC1;ndscope -k H1:SUS-${optic}_M1_DAMP_{L,P,Y}_IN1_DQ &

PSL Weekly Report - Weekly FAMIS 27622

Closes FAMIS 27622, last checked in alog 88380

Laser Status:
    NPRO output power is 1.86W
    AMP1 output power is 70.35W
    AMP2 output power is 139.5W
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN
    PDWD watchdog is GREEN

PMC:
    It has been locked 6 days, 14 hr 45 minutes
    Reflected power = 24.87W
    Transmitted power = 105.8W
    PowerSum = 130.7W

FSS:
    It has been locked for 0 days 16 hr and 45 min
    TPD[V] = 0.5086V

ISS:
    The diffracted power is around 4.5%
    Last saturation event was 0 days 18 hours and 22 minutes ago

Possible Issues:
    PMC reflected power is high

OPS Day Shift Start

TITLE: 12/16 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: MAINTENANCE
    Wind: 15mph Gusts, 10mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 1.00 μm/s 
QUICK SUMMARY:

IFO is in IDLE for PLANNED ENGINEERING

A look at today's planned activities:

• LVEA Laser Hazard Transition
• HAM1 - Set irises on table to capture PSL beam pointing
• HAM1 - Go into PSL and add lenses
• HAM7 - Start deinstall relay tube, install viewport adapter on HAM5 side
• HAM7 - In-chamber OPO work continued
• HAM1 - Load in/stage all JAC hardware, plug in JM1 and JM3 to start testing controls
• HAM1 - Install periscopes
• BSC2 - FARO work

 

Workstations updated

Workstations were updated and rebooted.  This was an OS packages update.  Conda packages were not updated.

Recleaned JAC mirrors

Jennie W, Masayuki,

 

Today Masayuki and I went into the optics lab for some JAC prep.

• He crimped the connectors onto the PZT wires after we cut off the soldered end and stripped some of the insulation away last week.
• We removed the tranport end caps which protect the mirrors.
• Masayuki also wiped down the top of the JAC.
• We took the JAC ASSY onto the flow bench, removed the mirror/mirror-cap assys and used FC to clean the HR surfaces.
• We checked the cable connection between the pins and the solder joint on the PZT ring.
• We used the top gun to blow off dust from the HR and A R surfaces and re-installed the end caps.
• We will leave the JAC assy covered on the flow bench as we still need to install some cable routing.
• Our other parts for the JAC damper are in the clean room right behind the flow benches under some foil. The quarter of the bench not covered by foil needs wiping again but can be used for other assembly.

CHETA build log -- Monday 12/15

M. Todd, G. Vajente, L. Dartez

---

Monday 12/15

1. We went through a checklist of things that still needed to be mounted, and decided to change the layout of laser position a bit to include a dogleg so that the laser connector had more room, free from the cable connectors near the feedthrough panel
2. Redesigned the feedthrough panels, now the same design can be used for all 4 tables (2 at each site) – and got a quote to be ordered
3. Connected and tested the laser interlock 
4. Mounted and installed laser (SN 0918) & cooler, confirmed that it draws current & delivers a reasonable amount of power as read out on the powermeter
5. Assembled pedestals for the lenses & various optics using assorted spacers to ensure center of all optics is at 4” height
6. Started a cart for additional components that we’ll need since we’re dipping into table 2 parts due to the adjustments we’re making to the layout

 

To Do:

1. Finish mounting the mirrors in the flipper mount (supposed to be a double mirror)
2. Mount the ZnSe QPD 2” lens.
3. Implement the dogleg
4. Align the optics
5. Profile the laser where the translation stage is now or where the beam is supposed to be going.
6. Integrate the power meter into a laptop with a usb?

Replacing failing disks on cdsfs0 and cdsfs1

Another disk showed problems on cdsfs0, so I replaced it was a spare.

Cdsfs1 has numerous problems.  Zpool status is noting that sdl, sdh, sdp, sdo are bad.  It looks like the io slot for sdl may be bad (I tried replacing the disk and the system could not see it).  I replaced the sdh disk and got it resilvering.  Then sdp started resilvering (which was unexpected). I'm going to wait and see how this resilvering goes before I proceed.  The activity lights do not match my model of what zpool status is telling me.  This is an old box, and replacement/retirement may just be the better path for it.

HAM1 ISI is locked, tabletop payload adjusted for JAC install

After doors came off this afternoon, I went to HAM1 and locked the ISI. Mitch then helped with rearranging a lot of the mass on the table to match the new layout in v6 of D1200524 : https://dcc.ligo.org/DocDB/0089/D1200524/006/D1200524-v6.PDF

We left the two stacks off of the +X side of the table. None of the stacks are currently on viton, I didn't want to leave any loose stacks while JAC was installed. We will rectify that when they are done. I will try to get pictures of the current table layout tomorrow.

HAM1 is Vented and Doors are Off

(Jordan, Travis, Randy, Jim, Tyler, Gerardo)

Volume for HAM1 was vented this morning, no issues encountered during the process.  HAM1 ion pump was isolated before the vent.

Annulus system for both HAM1 and HAM2 was vented with nitrogen gas, both ion pumps were turned off before the annulus system was vented.

Bolts were removed for both doors, we left 4 bolts on each door and then broke for lunch.

After lunch both doors were removed, -Y door had a stubborn O-ring, but we managed to place it back into its dove tail groove, good O-ring.  Similar issue for the +Y door, inner O-ring was stuck to the door and it just did not want to stay put, we used the O-ring protectors to persueade it to stay in the groove.

Jim locked the table, then with his help the septum viewport protectors were installed.

Jim and Mitch have the chamber now.

 

CDS Upgrade Summary: Monday 15th December 2025

Merge h1sush2a/2b to form h1sush12

Jeff, Oli, Fil, Marc, Erik, Jonathan, EJ, Dave

h1sush2a was upgraded to become h1sush12, with h1sush2b being powered down for now.

In the MSR, the supermicro W2245 h1sush2a was removed from the rack and in its place the new W3323 h1sush12 was installed. The IX Dolphin card and cable was transferred to the new machine.

In the CER H1SUSH2A IO Chassis was upgraded to become H1SUSH12:

The ADC was removed from sush2b to become the third ADC in sush12.

All the 18bit DACs were removed.

3 LIGO-DACs were installed, along with a new 4th ADC.

The 3 Binary cards were left in place. In fact their cables were long enough to remain attached while the chassis was pulled out from the rack.

New models for h1iopsush12, h1sus[mc1,mc3,prm,pr3,im,ham1] were added. Note that h1sushtts is now called h1susham1. A DAQ restart was needed.

More details will follow.

New ASCIMC, LSC models

Jennie, Dave:

New h1ascimc and h1lsc models were installed. A DAQ restart was needed.

Beckhoff changes

Daniel, Dave:

Daniel installed new CS-ISC beckhoff PLC. A DAQ restart was needed.

DAQ Restart

Dave, Jonathan.

The DAQ was restarted for:

retire iopsush2a, iopsush2b. Add new iopsush12

h1sush12 user model changes

new h1ascimc and h1lsc models

EDC restart for ECAT CS ISC.

Mon CP1 Fill

Mon Dec 15 10:07:40 2025 INFO: Fill completed in 7min 37secs

 

SUS-C3 and SUS-C4 AI Chassis Upgrades Complete; Merged sush12 ADC/DAC to AA/AI Chassis Cabling Installed

F. Clara, J. Figueroa, J. Kissel, M. Pirello
ECR E2400409 and E2500296 (IIET 35739 and 35706, respectively)
WP 12901
DWG D0902810-v12
DCN E2500341

Today we've gone forward with merging the sush2a and sush2b IO chassis, facilitated by upgrading those SUS's DAC cards to 32 CH, 28- bit DACs (D2200368). This entry covers the analog electronics and cabling that were impacted by the change, covering that all of the suspensions in, or soon to be in HAM1 and HAM2 -- MC1, MC3, PRM, PR3, IM1, IM2, IM3, IM4, RM1, RM2, PM1, JM1, and JM3.

We followed changes outlined in E2500341 which highlights the changes in the sush12 SUS electronics system drawing from D0902810-v11 to D0902810-v12. 
That required 
    - disconnecting all affected AI output cables in SUS-C3 and SUS-C4,
    - Removing the existing 6x 2x 8CH DAC AI chassis (D1000305), 
    - modifying them to become D2500353 1x 32CH AI chassis 
        . replacing the 2x 8CH AI rear panel with WD relays (D1000551) with 1x 32CH AI rear panel without WD relays (D2500097)
        . replacing the 2x 8CH back panel (https://dcc.ligo.org/LIGO-D1000552 with 1x 32CH back panel (D2400308)
    - re-installing, then
    - cabling everything up according to the D0902810-v12 version of the wiring diagram.

Here's the list of modified AI chassis serial numbers and assignment:
                                                     D1000305 > D2500353     D2500097
SUS Chain                     Rack / Position        Chassis S/N             Rear Board S/N          32CH DAC Card / IO Slot      Channels (Counting from 0)
MC1, MC3, PRM TOPs            SUS-C4 / U30           S1104370                S2501311                DAC0 / #2                     0-15
PRM, PR3 TOPs MC1 MID BOT     SUS-C4 / U29           S1104374                S2501315                DAC0 / #2                    16-31

MC3, PRM MID/BOT              SUS-C4 / U22           S1104375                S2501310                DAC1 / #4                     0-15
PR3 MID/BOT, RM1, RM2         SUS-C4 / U21           S1104378                S2501312                DAC1 / #4                    16-31

IM1, IM2, IM3, IM4            SUS-C4 / U10           S1104377                S2501314                DAC2 / #5                     0-15
PM1, JM1, and JM3             SUS-C4 /  U2           S1102760**              S2501313                DAC2 / #5                    16-31

** Technically, the (now) PM1, JM1, and JM3 AI chassis S1102760 was a 16-bit DAC AI chassis (D1101521) instead of a D1000305 at the start of today, and it didn't *need* the additional 16CH pass-through SCSI connection, but in the spirit of making everything the same, we elected to make it a full "new normal" D2500353 chassis.

Pictures of the now-D2500353 AI chassis rear boards and their connections. They're attached in the order of rear board serial numbers; the corresponding chassis number is listed above.