Milestone #23736: IOTA ACNET Interface Change Requests Dec 2019
Change behavior of BPM TBT devices when readout is in progress
Currently we return a timeout error if a readout is in progress when ACNET attempts to read a TBT reading. If a readout is in progress then we should provide the next available reading.
(Note that this could result in a scan of BPM devices returning data from different machine pulses if the ACNET reading is done asynchronously. Users should be advised to collect data on an event if possible)