  The control system and the entire architecture of the High Resolution
Spectrograph (SARG) for the Italian National Telescope "Galileo" (TNG) are here
described. The concept of SARG instrument controls is similar to that of the
other TNG instruments, in particular the CCD detector driving and the image
acquisition use the same TNG standard boards and the same selected bus: the
VME. The link between the SARG VME and the other telescope components is based
on the same GATE software that guarantees the compatibility with the entire
distributed TNG software. The control of the moving parts as well as the other
parts of instrument that is the lamp controller and the temperature sensors, is
based on a commercial controller connected to the system through a serial link.
Furthermore a specialized software running on a PC has been realized to test
the rotating tables independently of the VME system. Test of accuracy and
repeatability of the positioning were done and some results are presented.
