Thanks to Alain, we modified the logic of the etalon in order to apply a ramp of 600s to the UP condition. The logic is the following:
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ACL_FILTER_CH NI_DOWN_OFFSET "C" 1 LOOP_FREQ INPOWERSTEP 1 "Etalon_north_down"
ACL_FILTER_CH_OPTION NI_DOWN_OFFSET -1 "sin_inout" "linear" 0 10 0 -2 # use long-double computation
# nameOut - unit - samplingFreq - duration_0to1 - duration_1to0 - start state - channelIn - threshold_0to1 - threshold_1to0 - falling_or_rising_edge
ACL_RELAY_CH NI_DOWN_OFFSET_trig "" LOOP_FREQ 0 600 -2 UNLOCK_TRIG 1e-3 1e-3 "FABS>="
# nameOut - unit - samplingFreq - duration_0to1 - duration_1to0 - start state - channelIn - threshold_0to1 - threshold_1to0 - falling_or_rising_edge
ACL_FILTER_CH_RESET_CND NI_DOWN_OFFSET NI_DOWN_OFFSET_trig
ACL_OP_CH NI_DOWN_OFFSET_cnd "" "prod" NI_DOWN_OFFSET NI_DOWN_OFFSET_trig
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Moreover, we added to the DAQ few new channels, "NI_DOWN_OFFSET_trig" and "NI_DOWN_OFFSET_cnd".
We restarted the Etalon process at 9:43UTC.