tango

The TANGO control system is a free open source device-oriented controls toolkit for controlling any kind of hardware or software and building SCADA systems. It is used for controlling synchrotrons, lasers, physics experiments in over 20 sites. It is being actively developed by a consortium of research institutes.
TANGO is a distributed control system. It runs on a single machine as well as hundreds of machines. TANGO uses two network protocols - the omniorb implementation of CORBA and Zeromq. The basic communication model is the client-server model. Communication between clients and servers can be synchronous, asynchronous or event driven. CORBA is used for synchronous and asynchronous communication and Zeromq is used for event-driven communication (since version 8 of TANGO).
TANGO is based on the concept of Devices. Devices implement object oriented and service oriented approaches to software architecture. The Device model in TANGO implements commands/methods, attributes / data fields and properties for configuring Devices. In TANGO all control objects are Devices.

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