Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Mon, 30 Jul 2012 10:26:56 -0700

I put together a simple StreamDevice/ASYN application and a small python script to provide a dummy 'instrument'.   The instrument provides 30000 values on demand. 
Things seem to work as expected.  Here's the output from the final command of the startup script:

dbpr "wchk:1:Wave"
ASG:                BUSY: 0             DESC: Read a long waveform              
DISA: 0             DISP: 0             DISV: 1             NAME: wchk:1:Wave   
NORD: 30000         SEVR: NO_ALARM      STAT: NO_ALARM      TPRO: 0             
VAL: 0x0            

As you can see, the IOC has successfully read 30000 double values from the instrument.
Andrew -- perhaps you can massage the attached application a little to match the commands of your hardware and see if things work for you as well?

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System