labCA and EPICS_CA_MAX_ARRAY_BYTES

[John Dobbins <john.dobbins@cornell.edu>]

Is it possible to use labCA to retrieve arrays larger than 16K?

I have EPICS_CA_MAX_ARRAY_BYTES set to a large number and verified that caget will retrieve a large array but labCA 3.1 returns an error.

> > data= lcaGet('IBLEMS01_data', 120000);
Initializing labCA Release '$Name: labca_3_1 $'...
Author: Till Straumann <strauman@slac.stanford.edu>
??? Error using ==> lcaGet
multi_ezca_get -  ezcaGetWithStatus(): get_callback() : The requested data transfer is greater than



John Dobbins

Cornell University
Laboratory for Elementary-Particle Physics