THE OPERATOR INTERFACE TO THE EQUIPMENT OF THE CERN PS ACCELERATORS

A well defined equipment interface has been in use for a long time in the PS complex. It is based on standard calling sequences to a set of object-oriented software modules, which fit the diverse equipment in h omogeneous classes. In the context of the new control system, with the introduction of UNIX, MOTIF, and an on-line database management syste m, this concept of standardization was extended to the workstation use r interface. A single framework guides the operator through menus and options and provides specific control widgets and displays according t o configuration data found in the database. This has proved very valua ble for producing new control interfaces for whole accelerators with m inimal programming effort. This paper describes the current software a rchitecture and also reviews the generic applications and commercial p roducts for operator interaction which make use of that architecture.