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<div class="tooltip" id="n0">Administration</div>
<div class="tooltip" id="n1">Astor's first goal is to know at a quick glance, if everything is OK in a control system,<br>and otherwise to be able to diagnose a problem and solve it.<br>The second goal is to configure the control system and its components. <br>The third goal is to have long term analysis on components (logs, statistics, usage,....).<br>It is relying on the starter devices.</div>
<div class="tooltip" id="n2">To achieve complete device independence, it is necessary however to supplement <br>device classes with a possibility for configuring device dependencies at runtime. <br>The utility which does this in the TDSOM is the property database. Properties <br>are identified by an ascii string and the device name. TANGO attributes are also <br>configured using properties. This database is also used to store device network <br>addresses (CORBA IOR's), list of classes hosted by a device server process and <br>list of devices for each class in a device server process. The database ensure <br>the uniqueness of device name and of alias. TANGO uses MySQL as its database.</div>
<div class="tooltip" id="n3">A high level object which contains the link to the database. It has methods for <br>all database commands e.g. get_device_property(), device_list(), info(), etc. </div>
<div class="tooltip" id="n4">TANGO devices and database are implemented using the TANGO device server model. <br>To access them the user has the CORBA interface e.g. command_inout(), <br>write_attributes() etc. defined by the idl file. These methods are very <br>low-level and assume a good working knowledge of CORBA. In order to simplify <br>this access, high-level api in C++, Python and Java have been implemented which <br>hides all CORBA aspects of TANGO.</div>
<div class="tooltip" id="n5">The TANGO Logging Service (TLS) gives the user the control over how much <br>information is actually generated and to where it goes. In practice, the <br>TLS allows to select both the logging level and targets of any device within <br>the control system. </div>
<div class="tooltip" id="n6">A Tango Log Consumer device is nothing but a tango device supporting the <br>following tango command: void log (Tango::DevVarStringArray details) </div>
<div class="tooltip" id="n7">One implementation of a log consumer associated to a graphical user interface is<br> available within Tango. It is a standalone java application called LogViewer <br> based on the publicly available chainsaw application from the log4j package.</div>
<div class="tooltip" id="n8">JIVE is a standalone JAVA application designed to browse and edit the TANGO database. <br>Jive also offers advanced search/selection features.<br></div>
<div class="tooltip" id="n9">In order to simplify device server process administration, a device of the <br>DServer class is automatically added to each device server process. Thus, every <br>device server process supports the same set of administration commands. The <br>implementation of this DServer class follows the device pattern and therefore, <br>its device behaves like any other devices. The device name is: <br>dserver/device server executable name/device server instance name </div>
<div class="tooltip" id="n10">Clients access the database via TANGO commands requested on the database device. </div>
<div class="tooltip" id="n11">Communication Layer (CORBA / ZMQ)</div>
<div class="tooltip" id="n12">Fandango (previously called PyTango_utils) is a Python module created to simplify the configuration of big control systems;<br>implementing the behavior of Jive (configuration) and/or Astor (deployment) tools in methods that could be called from scripts using regexp and wildcards.<br>It has been later extended with methods commonly used in some of our python API's (archiving, CCDB, alarms, vacca) or generic devices (composers, simulators, facades).<br></div>
<div class="tooltip" id="n13">configuration management tool for an ELI-ALPS equipment (equipment, beamdelivery, etc.). <br>The CSV files hold device names, hierarchy and attribute property values; which are <br>used for automatically registering devices in the Tango Database.</div>
<div class="tooltip" id="n14">The Cabling and Controls DataBase (CCDB) is part of the ALBA control system. It has the following:<br>Equipments, connectors and cable types <br>Instances of equipments and cables (naming conventions) <br>Documentation files <br>Installation logs <br>Source for automatic code generation and creation of <br>Tango devices</div>
<div class="tooltip" id="n15">This device server is able to control Tango components (database, device <br>servers, clients...). It is able to start or stop and to report the status <br>of these components.</div>
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