68 lines
3.1 KiB
Plaintext
68 lines
3.1 KiB
Plaintext
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta name="generator" content="HTML Tidy for HTML5 for Apple macOS version 5.8.0">
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<title>JMRI: Configure Digitrax PM4</title>
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<meta name="author" content="Bob Jacobsen">
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<meta name="keywords" content="JMRI help configure loconet PM4">
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</head>
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<body>
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<div id="mBody">
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<div id="mainContent" class="no-sidebar">
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<a href="PM4xConfigTool.png"><img src="PM4xConfigTool.png" style="float:right; margin: 5px;"
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alt="PM4x Configuration Tool Screen Capture"></a>
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<h1>Configure Digitrax PM4x</h1>
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<p>The JMRI PM4x programming tool lets you configure the internal options of a PM4 or PM42
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directly from your computer.</p>
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<p>To open this tool from the JMRI start page select the LocoNet tab then find the tool on
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the drop down list.</p>
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<p>To use it, you put the address of a PM4x board in the text field and click "Read from
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PM4x". The tool will read back the current state of the various options, and set the check
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boxes to correspond to their current values.</p>
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<p>You can then, if you wish, change the checkboxes and click "Write to PM4x" to make your
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changes permanent.</p>
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<p>The tool relies upon each PM4x board to have a unique "Board ID" (Board Address) in order
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to configure each device individually. While it is possible to change the Board ID number
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using JMRI, it cannot be done using this tool due to limitations of the PM4x design. Instead,
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follow the instructions found <a href=
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"../../../../../html/hardware/loconet/Digitrax.shtml#deviceBoardId">here</a>, but you must
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consult the appropriate PM4x manual and modify the JMRI-based process to suit the PM4x
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device's buttons, button press time, and lamp flashes.</p>
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<h2>Limitations</h2>
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<ul>
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<li>This tool is able to access PM4x boards with addresses between 1 and 256. Users are
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advised to avoid using the factory default board address (board address 1) as it will be
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difficult to program new boards with unique data if any in-service board is using the
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factory default board address.</li>
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<li>Because of the way the PM4x board works, this tool can't change the basic address of
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the unit. The PM4x documentation describes how to change the board address. It is possible
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to change the Board ID number using JMRI by following the instructions found <a href=
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"../../../../../html/hardware/loconet/Digitrax.shtml#deviceBoardId">here</a>. Note that it
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is necessary to consult the appropriate PM4x manual and modify the JMRI-based process shown
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at the link above to suit the PM4x's buttons, button press time, and lamp flashes.
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</li>
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</ul>
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<h2>See Also</h2>
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<p>Documentation for the PM4 and PM42 can be found at the <a href=
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"http://www.digitrax.com">Digitrax Web Site.</a></p>
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<script src="/js/help.js"></script>
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