ИСТИНА

Based on “open technologies” approach to design of control systems for radiography and cargo inspection electron RF accelerators constructed at SINP MSU is described. The control system consists of a number of specialized controllers each responsible for separate accelerator subsystem connected via Ethernet interface and Modbus/TCP protocol with control computer which in turn is connected with control panel computer, modulator, power supplies etc. each having its own digital interface. Each controller contains one or several special boards conditioning external analogue and discrete signals and universal microcontroller part providing controller operation and network connection. Both control computer and control panel computer are based on BlueShark SOM (System on a Module) amd run Linux operating system. Custom SCADA-like system has been developed to provide proper accelerator operation and operator interface with support for different levels of access to accelerator parameters.