In order to provide high quality electron beams, the future SwissFEL machine needs very precise beam diagnostics tools. At the Paul Scherrer Institute (PSI), the development of such tools required setting up a dedicated automated test stand, which could significantly simplify the development process. The test stand is equipped with not only major SwissFEL beam diagnostics elements (cameras, beam loss monitors, wire scanners, etc.) but also their controls and data processing hardware and software. The paper describes diagnostics test stand controls software components designed in view of the future SwissFEL operational requirements.