Experimental Physics and
Industrial Control System

"Matthieu D.C. Bec" <[email protected]> · Tue, 23 Nov 1999 10:13:11 +0000 (GMT)

I think there's a problem in the motor record.
( v3.4 under EPICS 3.13.1 )

- the home fwd/rev (HOMR/HOMF) are supposed to 'hit home at 1000 steps per 
sec.'

the conversion in motorRecord.c is erronous:
   double hvel = 1000 * fabs(pmr->mres / pmr->eres);
   [..]
   WRITE_MSG(SET_VELOCITY, &hvel);

where:
  mres = steps size in EGU
  eres = steps / rev

hvel should simply be set to 1000.

I checked by turning on the debuging of the OMS diver, and ended up having 
VL values over the allowed maximum (522000 for an OMS-VME8). Hence the slow 
speed was not registered and I ended up datuming at 'normal' speed.

otherwise the new INIT/PREM/POST fields are really usefull, great!

un saludo,
   Matthieu

Matthieu Bec                       Isaac Newton Group
tel  : +34 922 425427              Apartado de Correos 321
fax  : +34 922 425429              38780 Santa Cruz de La Palma
url  : www.ing.iac.es/~mdcb        Canary Islands, Spain

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System