Experimental Physics and
Industrial Control System

re...

> I am using EPICS R3.13.1. The scan record does indeed succeed in causing the 
> motor to move to desired postions. I am also using the scan record to collect
> "detector" data at each position. I am able to extract the detector data
> array using MEDM
> without a problem but the positioner data array always reads zeros although 
the 
> position is changing both visibly and also in Motor record position values
> in MEDM.

Positioners have two arrays: PxPA, an input field which defines
positions to be visited (used only for table-driven scans); and PxRA,
the readback array which contains the positions actually visited (for
all types of scans).  You want to look at PxRA.

Tim Mooney ([email protected]) (630)252-5417
Beamline Controls & Data Acquisition Group
Advanced Photon Source, Argonne National Lab

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