Corba Experience at the Sls

Beam dynamics applications and components of the beamline experimental controls system at the Swiss Light Source (SLS) have benefitted from a distributed and heterogeneous computing environment in which the Common Object Request Broker Architecture (CORBA) forms the middleware layer and access point to essential software packages. Use is made of CORBA methods provided by the Portable Object Adapter (POA) for accessing ORB functions, such as object reactivation and object persistence, the Implementation Repository (IMR) for the automatic reactivation of servers, and the CORBA Event Service for the propagation of controls and physics data. An account of the experience gained, in the three years since development work began to the present time of first SLS operation, is presented. Talk presented at the CORBA Controls Workshop, 9-11 October 2002, European Synchrotron Radiation Facility (ESRF), Grenoble, France CORBA EXPERIENCE AT THE SLS C. Beny, M. Böge, J. Chrin, M. Grunder, M. Janousch, R. Krempaská, M. Muñoz, A. Streun Paul Scherrer Institut, 5232 Villigen PSI, Switzerland