D. Barker, J. Garcia


The optical lever photodiode signals were added to the H2 SUS ITMY Simulink model ('h2susitmy.mdl') at the "L3" stage.  The signals are routed to the second ADC on 'h2susb478', which is labeled "ADC_1" in the Simulink model.  The "h2susitmy.mdl" file was modified to incorporate the four quadrant signals from the ITMY Optical Lever photodiode into the "QUAD_MASTER.mdl" library part. 

In the 'h2susitmy.mdl' file, the four quadrant signals are on the ADC_1 channels: 
UL = ADC_1_1
UR = ADC_1_3
LL = ADC_1_2
LR = ADC_1_4

NOTE: this configuration will hold true for the One Arm Test and does NOT reflect the latest H2 SUS ITM, BS, FM wiring diagram, D1001725-v10.  

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In addition to the above changes to the "custom" top level Simulink model ('h2susitmy'), the "QUAD_MASTER.mdl" generic library part was modified for several bug fixes.  Inside the 'QUAD_MASTER' diagram, the editing was performed mainly at the 'QUAD_MASTER/QUAD/L3/OPLEVWIT/' level.  Initially, SUM, Pitch, and Yaw outputs were test points without filter modules.  However, this prevented the DAQ from accepting these channels and writing them to frames, unbeknowst to CDS.  These library parts were replaced with actual filter modules instead of test points.  This resolved the ability to write these channels to frames.  

The Optical Lever photodiode channels being written to frames are:
H2:SUS-ITMY_L3_OPLEVWIT_P_OUT
H2:SUS-ITMY_L3_OPLEVWIT_Y_OUT
H2:SUS-ITMY_L3_OPLEVWIT_SUM_OUT

The 'h2susitmy' model has now been recompiled and installed on 'h2susb478'.