71 lines
3.7 KiB
HTML
71 lines
3.7 KiB
HTML
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<meta name="DC.Title" content="Usage for ICF files (position 38)" />
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<meta name="abstract" content="The valid entries for this position are listed here." />
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<meta name="description" content="The valid entries for this position are listed here." />
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<title>Usage for ICF files (position 38)</title>
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<body id="cusg"><a name="cusg"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Usage for ICF files (position 38)</h1>
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<div><p>The valid entries for this position are listed here.</p>
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<div class="section">
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e22">Entry</th>
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<th valign="bottom" id="d0e24">Meaning</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e22 ">B or blank</td>
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<td valign="top" headers="d0e24 ">Both input/output field</td>
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</tr>
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<tr><td valign="top" headers="d0e22 ">P</td>
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<td valign="top" headers="d0e24 ">Program-to-system field</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>A program-to-system field is used to communicate between an application
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program and the sending system (which is local to the application program).
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It is not sent as part of the data record across the line to the receiving
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system.</p>
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<div class="p">The following rules apply to program-to-system fields: <ul><li>The field must be a named, numeric, or alphanumeric output-only field.</li>
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<li>In the record format, the program-to-system fields must be defined after
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all the data fields (those with a use of B or blank).</li>
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<li>A field cannot be defined as both a data field and a program-to-system
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field; the field names must be unique.</li>
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<li>A program-to-system field can be named on an EVOKE, SECURITY, TIMER, or
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VARLEN keyword.</li>
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<li>The only valid keywords for a program-to-system field are ALIAS, FLTPCN,
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REFFLD and TEXT.</li>
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</ul>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="cmnfl.htm" title="Here are some rules and examples for filling in positions 1 through 44 of the data description specifications (DDS) form.">Define an ICF file using DDS</a></div>
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</div>
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</div>
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</body>
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