77 lines
2.4 KiB
HTML
77 lines
2.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>StreamDevice: bo Records</title>
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<link rel="shortcut icon" href="favicon.ico">
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<link rel="stylesheet" type="text/css" href="stream.css">
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<meta name="author" content="Dirk Zimoch">
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</head>
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<body>
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<iframe src="nav.html" id="navleft"></iframe>
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<h1>bo Records</h1>
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<h2>Normal Operation</h2>
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<p>
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Depending on the format type, different record fields are used
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for output and input. The variable <code><i>x</i></code> stands for the
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written or read value.
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</p>
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<dl>
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<dt>DOUBLE format (e.g. <code>%f</code>):</dt>
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<dd>
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Not allowed.
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</dd>
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<dt>LONG format (e.g. <code>%i</code>):</dt>
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<dd>
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<u>Output:</u> <code><i>x</i>=RVAL</code><br>
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<u>Input:</u> <code>RBV=<i>x</i>&MASK</code><br>
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<code>MASK</code> can be set be set in the record definition. Stream
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Device does not set it. If <code>MASK==0</code>, it is ignored
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(i.e. <code>RBV=<i>x</i></code>).
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</dd>
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<dt>ENUM format (e.g. <code>%{</code>):</dt>
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<dd>
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<u>Output:</u> <code><i>x</i>=VAL</code><br>
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<u>Input:</u> <code>VAL=(<i>x</i>!=0)</code><br>
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</dd>
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<dt>STRING format (e.g. <code>%s</code>):</dt>
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<dd>
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<u>Output:</u> Depending on <code>VAL</code>, <code>ZNAM</code> or
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<code>ONAM</code> is written, i.e. <code><i>x</i>=VAL?ONAM:ZNAM</code>.<br>
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<u>Input:</u> If input is equal to <code>ZNAM</code> or <code>ONAM</code>,
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<code>VAL</code> is set accordingly. Other input strings are not accepted.
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</dd>
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</dl>
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<h2>Initialization</h2>
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<p>
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During <a href="processing.html#init">initialization</a>, the <code>@init</code> handler is executed, if
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present. In contrast to normal operation, LONG input is put to
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<code>RVAL</code> as well as to <code>RBV</code> and converted by the record.
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</p>
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<hr>
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<p>
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<a href="aai.html">aai</a>
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<a href="aao.html">aao</a>
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<a href="ai.html">ai</a>
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<a href="ao.html">ao</a>
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<a href="bi.html">bi</a>
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<a href="mbbi.html">mbbi</a>
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<a href="mbbo.html">mbbo</a>
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<a href="mbbiDirect.html">mbbiDirect</a>
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<a href="mbboDirect.html">mbboDirect</a>
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<a href="longin.html">longin</a>
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<a href="longout.html">longout</a>
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<a href="stringin.html">stringin</a>
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<a href="stringout.html">stringout</a>
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<a href="waveform.html">waveform</a>
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<a href="calcout.html">calcout</a>
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<a href="scalcout.html">scalcout</a>
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</p>
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<p><small>Dirk Zimoch, 2005</small></p>
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</body>
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</html>
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