Motor record: motion relative to .RBV

["Marco A. Barra Montevechi Filho via Tech-talk" <tech-talk at aps.anl.gov>]

Hello all!

Im reading through the EPICS motor record to search for a field similar to .RLV. If i understand correctly, the .RLV will do something similar to summing the caputted value to .VAL instead of directly putting it into .VAL.

Is there a field that sums itself with .RBV instead and then puts this value into .VAL?
Example of expected behavior:

caget MOTOR.RBV
MOTOR.RBV         0.5
caget MOTOR.VAL
MOTOR.VAL         2  #Lets say that for some reason .VAL and .RBV are not in sync.

caput MOTOR.MISTERIOUS_FIELD 0.5

#wait for some time...

caget MOTOR.RBV
MOTOR.RBV            1
caget MOTOR.VAL
MOTOR.VAL             1

Sorry if the question is trivial but i couldnt find anything in the documentation. Thanks!

Marco

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