Support module for PV pre-defined values

["Pueyos, Armando \(DLSLtd, RAL, LSCI\) via Tech-talk" <tech-talk at aps.anl.gov>]

Hello all,

I am trying to find some support module that would allow to store some values and apply these to at least 1 PV from an enum. The idea is to allow end users to defining pre-selected values and apply these to a configured PV or group of PVs on demand. Ideally, something independent of the motor record that can be applied to any existing PV.

As an example, let's imagine a motor-controlled multi-filter with specific positions for each one (e.g. Cu=0, Si=50, Pt=80): the user can drive it to any value within range using a motor record, but also can comfortably select one the positions and command the motion to any of the specific values -- in the example, when selecting "Pt" the motor is commanded to value=80.

FYI, at Diamond we do have a similar one called simply "positioner", but it's quite complex and old for proper maintainability, and thus I am looking for a substitute.

Does anyone know about or have already implemented EPICS support for something like that? Please let me know, any help would be much appreciated.

Many thanks,

    Armando Pueyos

 

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