94 lines
3.7 KiB
HTML
94 lines
3.7 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>The TAS Client</TITLE>
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</HEAD>
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<BODY>
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<H1>The TAS Client</H1>
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<P>
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The TAS client is the dedicated SICS client for the triple axis
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spectrometers. It allows both to control the instrument and to view
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its current status.
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</P>
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<h2>Step 1: Starting the TAS Client</h2>
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<p>
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On the LNS unix systems the TAS client can be started by typing:
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<pre>
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tas &
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</pre>
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at the unix command prompt. For PC's and proper Macintosh computers
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(proper is MacOS > 10) the recommended way to start the TAS program is
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to install Java Web Start and run it from the SICS Java Web Start
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page. Further instructions and the applications can be found at:
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http://lns00.psi.ch/sics/wstart .
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</p>
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<h2>Step 2: Connect to an Instrument</h2>
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<p>
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Due to the client server architecture, the client program alone is
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only of very limited use. In order to become usefule, a connection to
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a SICS server has to be established. The obvious way to do this is
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through the menu selections in the Connect menu of the TAS
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client. There are various entries for various triple axis
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spectrometers and their simulation programs. With the Custom Connect
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option the connection parameters, the computer running the SICS server
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and the server port where the SICS server listens, can be entered
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manually. This is only necessary when SICS had to be relocated due to a
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hardware outage.
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</p>
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<h2>Step 3: Use The TAS Client</h2>
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<p>
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The TAS client consists of a menubar, a row of buttons beneath and a
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central activity area. The central activity area can display three
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different sub panels. These sub panels are selected through the
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buttons underneath the menubar. The following sub panels are
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available:
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<ul>
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<li>A Command Panel for entering commands.
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<li>A Status panel displaying the current values of interesting
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instrument parameters, most notably the positions of the 6 magic
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triple axis motors.
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<li>A Plot panel showing the data collected in the currently running
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scan and some auxiliary information about the scan.
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</ul>
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At the very bottom of the screen is a yellow line displaying the
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current status of a pending counting operation. Below that is a text
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line displaying the current status of the instrument.
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</p>
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<h3>The Command Panel</h3>
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<p>
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The command panel consists mainly of a text area in which the
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communication between the TAS client and the SICS server is logged. A
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text entry field at the bottom serves to enter commands to the SICS
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server. The little red button, labelled Interrupt, besides the text
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entry field can be used to interrupt the currently running
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measurement.
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</p>
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<p>
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The Command Panel has a menu associated with it. Through this menu
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logging to a file can be enabled. This log file is written locally on
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the machine running the TAS client. Submenu entries are available for
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opening and closing such log files. SICS has various levels of user
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rights. When connecting to the SICS server you are logged in with
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lowest possible privilege. In order to change your privilege, enter a
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username and a password through the Command/User Rights dialog.
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</p>
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<h3>The Plot Panel</h3>
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<p>
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The Plot Panel displays the data collected in the current scan. This
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display is automatically updated as soon as new data becomes available
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through the progress of the scan. You may <em>zoom in</em> on details
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in th plot by dragging a rectangle enclosing the interesting
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region from top to bottom. You may <em>zoom out</em> by dragging a
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rectangle from the bottom to the top.
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</p>
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<h2>Step 4: Closing the TAS Client</h2>
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<p>
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You can exit the TAS client through the File/Exit menu entry. You can
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also disconnect from the current SICS server through the
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Connect/Disconnect option and connect to another SICS server through
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the menu choices provided.
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</p>
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</BODY>
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</HTML>
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