Attendees:
Patrick, Stephanie, Till, Kuhkee, Debbie, Hamid, Kristi, Diane
Action Items:
Ernest - begin setting up test lab
Diane - prepare for Requirements Review
Patrick - set up meeting time for Requirements Review
Till - prepare for Monday feedback algorithm meeting
Sheng - please list what is needed to set up a BLEN test stand
Discussion Topics:
Overall Fast Feedback Review next week -
Diane will distribute slides early next week for everyone's review and comments. Patrick will set up a meeting time for later in the week, possibly 1:30 Friday.
Test Setups Required -
* Since there is already test equipment upstairs - particularly Steph's test EVG, the 'fast feedback test lab' should probably be set up upstairs (avoids additional fiber pulling...)
EVG - Steph has a test EVG available
Magnets - Kristi can set up a 'no hardware' test stand. She has a crate, VME, and EVR
Kristi would also like an additional magnet test setup in BLDG 15 with real hardware and timing
RF - Kuhkee needs a crate, VME, EVR, and a switch for an RF test Setup in BLDG 34
Kuhkee can use Ron Akre's existing RF test setup, that has a PAD and PAC, for additional testing
BPMs - Till needs 2 setups, one with a PAD and one with a digitizer.
So Till needs: 1 crate - extra large, 2 VME, 2 EVR, 1 VME digitizer, 1 PAD
BLENs - need one test setup: a crate, VME, EVR, PAD? Sheng, do we need anything else for a BLEN test setup?
Controller IOC - for test setup we need a Crate, VME, EVR.
We also need to order Controller hardware for production. Shall we say 10 VMEs and EVRs? We should be able to install the controllers into existing crates in production.
We also need 2 more network switches, or one switch divided so it supports Channel access network and new FNET network. The switch(es) should be set up as in production. We need fiber pulled to Kuhkee's and Kristi's offices.
Crates - 4, one large
VME processors - 5
EVRs - 5
PAD - 1 (or 2?)
VME digitizer - 1
Switches - switch for RF, plus 1 or 2 more.
Actuator Control for non-timeslot controlled commands:
Stephanie and Kuhkee had a question about how the Actuators must apply their incoming commands - right away, or after being sure that it can settle before the next pulse. Should it wait to set actuator if the incoming command was a little too slow for the next pulse?
The decision was to apply right away if the command does not include a timeslot specification, in this case it does not matter if it is slow because it will never be a 120Hz request. 120Hz commands always specify timeslot, which must be managed to apply within the correct timeslot anyway.
Feedback Algorithms and Timeslot control:
In a meeting on Monday at 11am Till will be describing a feedback algorithm solution that can handle the 60Hz or 30Hz disturbance without using timeslot control.
One implication: testing new algorithms will take time and effort that will push our schedule. We could use the help of our physicist friends in setting up an algorithm testing 'facility'.
Another implication: if such an algorithm is successful, we will not need the timeslot control for actuators...