The development of the system for stabilizing the vertical position of the "white" synchrotron radiation beam on the 2.5-GeV SIBERIA-2 storage ring at the Kurchatov Center of Synchrotron Radiation is considered. Two versions of the multichannel stabilizing system that are currently in operation are described. In the first, the procedures executed when introducing the first beam-stabilizing feedback loop in one channel are merely replicated for all other beamlines. In this case, an individual computer transmitting information to the control system of the storage ring via the local-area network is used in each beamline to process information from a beam position sensor equipped with a video camera. The other version of the stabilizing system is based on a central computer with a multichannel input card for video images. In this version, beam position sensors are sequentially interrogated by the computer and results of data processing are transmitted to the control system of the storage ring.
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