Hardware controls for the STAR experiment at RHIC

A hardware controls system has been implemented for the STAR experiment at RHIC. Approximately 10000 parameters governing experiment operation are currently controlled and monitored. The system is based on the Experimental Physics and Industrial Control System (EPICS). The architecture of STAR hardware controls is presented as well as the results of operation of the integrated baseline system. Novel features of the system include a specialized field bus (High-level Data Link Control-HDLC), new EPICS record support, Control DEVice (CDEV) interfaces to accelerator and magnet control systems, and C++ based communication between STAR online and Hardware Controls and their associated databases.