Reports until 18:03, Tuesday 03 May 2016
H1 CDS (CDS, VE)
patrick.thomas@LIGO.ORG - posted 18:03, Tuesday 03 May 2016 - last comment - 19:19, Tuesday 03 May 2016(26978)
PT170 and PT180 vacuum gauges moved to h0velx, all vacuum gauges removed from h1ecatc1, h1ecatx1 and h1ecaty1
WP 5862 and 5865

Filiberto and Richard moved the cabling for the PT170 and PT180 Inficon gauges from the second port on h1ecatc1 to h0velx. I updated the code on h0velx to read them. For some reason when the gauges were moved they stopped reading in Torr. I changed the reading back to Torr in the CoE parameters and sent the command to save the settings to non-volatile memory.

The code change also added error channels and channels to set the amount of smoothing on certain channels. The amount of smoothing had been hardcoded. The smoothing on these channels is now at the default 0 until I set the values for these to what they were hardcoded to.

I also changed the filter in the terminal for the CP2 LN2 level readback. On h0velx, terminal M17, CoE parameter 8000:15, I changed the filter from '50 Hz FIR' to 'IIR 7'.

I removed all of the channels and terminals for the Inficon vacuum gauges from h1ecatc1, h1ecatx1 and h1ecaty1. They were temporarily on these computers until the new Beckhoff vacuum controls were installed.

The channel names changes for the PT170 and PT180 gauges are:

old name | new name
H1:VAC-LX_X2_PT170_PRESS_OVERRANGE H0:VAC-LX_X2_PT170_MOD1_OVERRANGE
H1:VAC-LX_X2_PT170_PRESS_SENSOR H0:VAC-LX_X2_PT170_MOD1_SENSOR
H1:VAC-LX_X2_PT170_PRESS_TORR H0:VAC-LX_X2_PT170_MOD1_PRESS_TORR
H1:VAC-LX_X2_PT170_PRESS_TRIP H0:VAC-LX_X2_PT170_MOD1_TRIP
H1:VAC-LX_X2_PT170_PRESS_UNDERRANGE H0:VAC-LX_X2_PT170_MOD1_UNDERRANGE
H1:VAC-LX_X2_PT170_PRESS_VALID H0:VAC-LX_X2_PT170_MOD1_VALID
H1:VAC-LY_Y2_PT180_PRESS_OVERRANGE H0:VAC-LX_Y2_PT180_MOD1_OVERRANGE
H1:VAC-LY_Y2_PT180_PRESS_SENSOR H0:VAC-LX_Y2_PT180_MOD1_SENSOR
H1:VAC-LY_Y2_PT180_PRESS_TORR H0:VAC-LX_Y2_PT180_MOD1_PRESS_TORR
H1:VAC-LY_Y2_PT180_PRESS_TRIP H0:VAC-LX_Y2_PT180_MOD1_TRIP
H1:VAC-LY_Y2_PT180_PRESS_UNDERRANGE H0:VAC-LX_Y2_PT180_MOD1_UNDERRANGE
H1:VAC-LY_Y2_PT180_PRESS_VALID H0:VAC-LX_Y2_PT180_MOD1_VALID

Gerardo shimmed the LLCV for CP2 during this work. It is now back on PID control.

The medm screens have not been updated on the Beckhoff vacuum controls computers other than h0velx. This still needs to be done.
Comments related to this report
patrick.thomas@LIGO.ORG - 19:19, Tuesday 03 May 2016 (26984)
Attached are plots of PT170 and PT180 over the last 7 days including before and after the move.
Non-image files attached to this comment