CDS Maintenance Summary: Monday 6th April 2026

WP13100 Add 3 ADC to h1seih7 for h1susauxh6

Marc, Jeff, Corey, Jim, EJ, Erik, Dave:

After being tested on the DTS, 3 ADCs were added to h1seih7 for HAM6 SUSAUX. We took the opportunity to upgrade the firmware on the timing card and replace its sync-ribbon.

After the upgrade the single 16bit-DAC on this system ran immediately into a FIFO-EMPTY state and the IOP has a permanent DAC status. We verified the card and cable seating, all good but no change. We removed the 3 new ADCs, no change. We removed the 3 new ADC Interface cards, no change.

At this point we ran out of time, Jim said it was OK to leave HAM7 SEI down for the night. We will try timing card and DAC swapouts Tuesday.

WP13115 Reduce susb13 SWWD trip times

Jeff, Corey, Dave:

I installed a modified h1iopsusb13 which reduced the total SWWD SUS trip times for the ITMs from 20 mins to 15 mins ( from 5+15 to 5+10).  All models on h1susb13 were restarted, no DAQ restart was needed.

WP13132 Add ADC to h1susb2h34

Marc, Erik, Jeff, Corey, EJ, Dave:

After being tested on the DTS, an additional ADC was added to the h1susb2h34 IO Chassis. The timing card sync-ribbon was also replaced.

The h1iopsusb2h34 model was modifed to add the ADC. A DAQ restart is needed (pending).

WP13133 Add ADC to h1susauxb2h34

Marc, Erik, Jeff, EJ, Dave:

After being tested on the DTS, an additional ADC was added to the h1susauxb2h34 IO Chassis. The timing card sync-ribbon was also replaced.

The h1iopsusauxb2h34 model was modifed to add the ADC. A DAQ restart is needed (pending).

No DAQ Restart Was Done

Due to the h1seih7 issues we did not restart the DAQ on Monday. This means we have bad DAQ data for the models:

h1iopsusb2h34, h1iopsusauxb2h34, h1spih23.

Tuesday we will fix the h1seih7 issue, then restart the DAQ to resync INI for the two B2H34 models and add the new models h1spih23, h1suslo12, h1susauxh6.