An Accelerator Control System for PIGMI

A control and data acquisition system has been prepared for the PIGMI program's prototype accelerator. The system configuration features a central minicomputer connected to a distributed array of microprocessor based local control points via fast parallel links. A powerful microprocessor based operator's console provides dynamic control of all accelerator parameters while displaying in real time data taken at the local control points. In addition to centralized control, all basic control functions can be executed locally if necessary. While a special operating system was written for the micros, the central computer system primarily runs under its own commercially supplied real-time multitasking system. All applications programs are written in FORTRAN. Details of the control philosophy, the hardware and software are discussed.