2. The power supply parameter (scale factor) with the "P" suffix (i.e. S:V100P, S:MLAM1P) should be considered the "POST" or "2nd" ramp and should always be zero.
3. Ramps will be started on event <31> as before.
4. "Switch to this scale factor" will be event <46> (the End of Flat top event)
5. The delay time in this switch will be set to its minimum value (4 ms)
SY Power Supply waveforms will then track the end of FT. (External Beamline Power Supplies do this already.)
Parameter page parameters should respond as in previous runs.
The 165 cards can have up to 10 waveforms stored onboard. Only 2 are defined in the database for saveing and restoring. We seem to really only need one (1) anyway! So where there's a "Read table" or "Load table" and a "1->2" , this means choose either 1 or 2.
Unfortunatly, S11 is hard coded with the 165 parameter/sibling relationship.
The S11 program (PA0185) needs to be changed in order to handle this database
change. I've decided to NOT try to fix the S11 save problem, but instead
use some of the generic features of the control system to avoid problems
with saving and restoring. All the SY 165's are saved during an ARCHIVE (big)
and GLOBAL save. Restoring should be easy.
Restore S:165ALL from D1 to restore all the SY 165's
- Wally
Here's how to read the table in the picture.
If event 46 occurs at any time during the ramp, the card switches to the
'P' suffix device. (should be zero)
START LEVEL (
0)
The starting level of the waveform is zero times the scale factor 02 (
4.8
) (
0
)
Take 4.8 seconds to go to the value of zero.
(in this case, stays the same.) 03 (
1
) (
1
)
Take 1 second to go to the value of one times the scale factor.
(the scale factor is the D/A) 04 (
43.3
) (
1
)
Take 43.3 seconds to go to the value of one times the scale factor.
(in this case it stays at the full scale factor value) 05 (
.005
) (
0
)
Take 5 milliseconds to go to zero.
"S" for the second
{not used})
- Wally