Open AccessThe CEBAF control system for the CHL
Author(s) -
Keesee,
B. S. Bevins
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/268541
Subject(s) - interface (matter) , software , control system , computer automated measurement and control , operating system , automation , process (computing) , automatic control , control software , programmable logic controller , computer science , engineering , control engineering , electrical engineering , mechanical engineering , bubble , maximum bubble pressure method
The CEBAF Central Helium Liquefier (CHL) control system consists of independent safety controls located at each subsystem, CAMAC computer interface hardware, and a CEBAF-designed control software called Thaumaturgic Automated Control Logic (TACL). The paper describes how control software was interfaced with the subsystems of the CHL. Topics of configuration, editing, operator interface, datalogging, and internal logic functions are presented as they relate to the operational needs of the helium plant. The paper also describes the effort underway to convert from TACL to the Experimental Physics and Industrial Control System (EPICS), the new control system for the CEBAF accelerator. This software change will require customizing EPICS software to cryogenic process control