The TAco Next Generation Objects (TANGO) control system is a free open source object-oriented control system for controlling accelerators, experiments and any kind of hardware or software being actively developed by a consortium of (mainly) synchrotron radiation institutes.
TANGO is a distributed control system. It runs on a single machine as well as hundreds of machines. TANGO uses the omniorb implementation of CORBA as its network protocol. The client-server model is the basic communication model. Communication between clients and servers can be synchronous, asynchronous or event driven.
TANGO is based on the concepts of object oriented and service oriented approaches to software architecture. The object model in TANGO supports methods, attributes and properties. In TANGO all objects are representations of devices.
TANGO is primarily used to provide network access to hardware. Hardware can range from single bits of digital input/output up to sophisticated detector systems or entire plant control systems. Hardware access is programmed in a process called a Device Server. The device server implements device classes which implement the hardware access. At runtime the device server creates devices which represent logical instances of hardware. Clients "import" the devices and send requests to the devices using the TANGO protocol.
List of common device servers here
TANGO supports bindings to the following languages :
TANGO is distributed under 2 licenses. The libraries are licensed under the GNU Lesser General Public License (LGPL). Tools and device servers are (unless otherwise stated) under the GNU General Public License (GPL).
TANGO is an open source project. Anyone can download and use TANGO. Source code is stored in two CVS repositories on SourceForge :
- kernel source code
- device server source code
Local modifications or bug fixes can be made to the source code but committing changes to the repository requires authorization.
The consortium is a group of institutes who are actively developing TANGO. To join the consortium an institute has to sign the Memorandum of Understanding and actively commit resources to the development of TANGO. The consortium currently consists of the following institutes :
ESRF - European Synchrotron Radiation Facility, Grenoble, France
SOLEIL - Soleil Synchrotron, Paris, France
ELETTRA - Elettra Synchrotron, Trieste, Italy
ALBA - Alba Synchrotron, Barcelona, Spain
DESY - Petra III Synchrotron, Hamburg, Germany
The aim of the consortium is to guarantee the development of TANGO.
EPICS -- Experimental Physics and Industrial Control System
ESRF -- European Synchrotron Radiation Facility
Refer to the following publications on TANGO for more information :
TANGO - an object oriented control system based on CORBA, ICALEPCS 1999, Trieste (Italy)
TANGO a CORBA based Control System, ICALEPCS 2003, Gyeongju (Korea)
Ubiquitous TANGO, ICALEPCS 2007, Knoxville (USA)
Future of TANGO, ICALEPCS 2007, Knoxville (USA)
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