Overview of TEXT control system upgrade

The upgrade to the Texas Experimental Tokamak, (TEXT) includes two new motor-generator sets, new vertical-field and divertor power supplies, and a new 500-kW ECH (electron cyclotron heating) gyrotron and its power supplies. Much of the monitoring and control of this hardware are done by a network of UNIX workstations running TACL control software. Additional capabilities needed during actual pulses, such as fast data-logging and the generation of waveforms and fast timing sequences, is provided by CAMAC modules controlled by VAX computers and X Windows terminals. These new systems are integrated with the old TEXT control and data-acquisition systems.<>