We started with W_AITQTH, from DCB. Water under the bridge. For the PFI lamps, we also use that, even though the lamps+filter+screen provide a different/flatter SED. We can distinguish between the two by using the W_LGTSRC card.
For the HSC lamps, we can also use W_AITQTH to indicate that we have some "flat" source. OK? That plus the DATATYP card should tell DRP most of what it wants to know, right?
But I suggest that we add other cards to flesh out the details. There are four HSC lamps, which can be driven with variable voltage, We should show all that, probably, but also one single card to indicate whether we are primarily using the HSC or the PFI lamps – W_LGTSRC will be 'pfi' in both cases, so we need to distinguish. OK? Does anyone care about whether we have a single string card or a set of logicals? ncaplar price?
I am fine with any of these proposals.
Sounds reasonable. Can we include the HSC lamp voltage?
Definitely the lamp voltage(s). Would be nice to treat the four individual lamps as a single lamp, but I cannot remember whether we need to run with a single lamp for any real purpose. yuki.moritani?
If you are taking about the dome ring lamp as HSC lamps, we can turn on/off 4 lamps individually.
Yes, but do we need to control them individually for SPS? I think that was just for SuNSS, but cannot remember the details.
Ah, I'm sorry, I misunderstood you. Recalling the last run, we didn't turn on the lamps individually, and I don't think you need to turn the lamps on in such a way. (For SUNSS, we did.)
Looking gen2 status list on Subaru's wiki, it seems that TSCL.DOMEFF_nB_VOL , TSCL.DOMEFF_1B_VOL_CMD, and TSCV.DomeFF_nB (n=1,2,3,4) are for 120V lamp voltage (real), voltage (command) and on/off status.
Yeah, those are what I see in the status feed. Is that page accessible? I am curious about the bit mask-like values for the TSCV.DOMEFF.nB keys.
Something like the following:
| Gen2 key | MHS key | FITS | Description |
|---|---|---|---|
| TSCL.DOMEFF_nB_VOL_CMD | ringLampsCmd=%f,%f,%f,%f | W_TFFnVC | [V] Commanded Voltage to ring lamp N |
| TSCL.DOMEFF_nB_VOL | ringLamps=%f,%f,%f,%f | W_TFFnVV | [V] Actual Voltage to ring lamp N |
| TSCL.DOMEFF_nB | ringLampsStatus=%d,%d,%d,%d | W_TFFnST | Status of ring lamp N |
| STATL.TOPSCREEN_[FR]POS | topScreenPos=%f,%f | W_TFFS[FR]P | [m] Position of [front,rear] FF screen edge |
| TSCV.DomeLight | domeLights=%d | W_TDLGHT | Mask of dome lights |
Plus W_AITQTH as described above
Pulling the W_AITQTH work into a new ticket INSTRM-1766.
Adding two summary cards on this ticket: W_RNGQTH indicating that we think the ring lamps are on (any "on" status and positive command 
voltage), and W_TFFPOS, a string indicating where we think the FF screen is based on known front and rear positions. Values probably "in" and "out".