Weather station with ModBus over RS-485
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&#160;<span id="projectnumber">1.0.0</span>
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<div id="projectbrief">Modbus library for Arduino</div>
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<p><a class="el" href="classModbus.html" title="Modbus base class. ">Modbus</a> base class.
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<p><code>#include &lt;<a class="el" href="Modbus_8h_source.html">Modbus.h</a>&gt;</code></p>
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Inheritance diagram for Modbus:</div>
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Public Member Functions</h2></td></tr>
<tr class="memitem:af10a81e46f971daa4ce429d39776378b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#af10a81e46f971daa4ce429d39776378b">addCoil</a> (word offset, bool value=false)</td></tr>
<tr class="memdesc:af10a81e46f971daa4ce429d39776378b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add a coil. <a href="#af10a81e46f971daa4ce429d39776378b">More...</a><br /></td></tr>
<tr class="separator:af10a81e46f971daa4ce429d39776378b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a73797fbd9af758aedc198ccd8f4585fb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a73797fbd9af758aedc198ccd8f4585fb">addHreg</a> (word offset, word value=0)</td></tr>
<tr class="memdesc:a73797fbd9af758aedc198ccd8f4585fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add a holding register to the list. <a href="#a73797fbd9af758aedc198ccd8f4585fb">More...</a><br /></td></tr>
<tr class="separator:a73797fbd9af758aedc198ccd8f4585fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab052ca5452b76bdb85235e898623cedc"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#ab052ca5452b76bdb85235e898623cedc">addIreg</a> (word offset, word value=0)</td></tr>
<tr class="memdesc:ab052ca5452b76bdb85235e898623cedc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add a input register. <a href="#ab052ca5452b76bdb85235e898623cedc">More...</a><br /></td></tr>
<tr class="separator:ab052ca5452b76bdb85235e898623cedc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abead971752bc7b2a54cb508ad8a8a2c4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#abead971752bc7b2a54cb508ad8a8a2c4">addIsts</a> (word offset, bool value=false)</td></tr>
<tr class="memdesc:abead971752bc7b2a54cb508ad8a8a2c4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add a discrete input. <a href="#abead971752bc7b2a54cb508ad8a8a2c4">More...</a><br /></td></tr>
<tr class="separator:abead971752bc7b2a54cb508ad8a8a2c4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b5ed2b967d4c43b578d21f562abc007"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a6b5ed2b967d4c43b578d21f562abc007">Coil</a> (word offset, bool value)</td></tr>
<tr class="memdesc:a6b5ed2b967d4c43b578d21f562abc007"><td class="mdescLeft">&#160;</td><td class="mdescRight">Change the value of a coil This value will be returned when bus read, the master can also modify it. <a href="#a6b5ed2b967d4c43b578d21f562abc007">More...</a><br /></td></tr>
<tr class="separator:a6b5ed2b967d4c43b578d21f562abc007"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a208bb15086e008f05f2fa72398551d04"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a208bb15086e008f05f2fa72398551d04">Coil</a> (word offset)</td></tr>
<tr class="memdesc:a208bb15086e008f05f2fa72398551d04"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value of a coil. <a href="#a208bb15086e008f05f2fa72398551d04">More...</a><br /></td></tr>
<tr class="separator:a208bb15086e008f05f2fa72398551d04"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af13802f39b91279bd55538749bb76409"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#af13802f39b91279bd55538749bb76409">Hreg</a> (word offset, word value)</td></tr>
<tr class="memdesc:af13802f39b91279bd55538749bb76409"><td class="mdescLeft">&#160;</td><td class="mdescRight">Change the value of a holding register This value will be returned when bus read, the master can also modify it. <a href="#af13802f39b91279bd55538749bb76409">More...</a><br /></td></tr>
<tr class="separator:af13802f39b91279bd55538749bb76409"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa6b32867beace3ce557ea61183497607"><td class="memItemLeft" align="right" valign="top">word&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#aa6b32867beace3ce557ea61183497607">Hreg</a> (word offset)</td></tr>
<tr class="memdesc:aa6b32867beace3ce557ea61183497607"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value of a holding register. <a href="#aa6b32867beace3ce557ea61183497607">More...</a><br /></td></tr>
<tr class="separator:aa6b32867beace3ce557ea61183497607"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac9be098d4bff9081105b6202922b1134"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#ac9be098d4bff9081105b6202922b1134">Ireg</a> (word offset, word value)</td></tr>
<tr class="memdesc:ac9be098d4bff9081105b6202922b1134"><td class="mdescLeft">&#160;</td><td class="mdescRight">Change the value of an input register This value will be returned when bus read. <a href="#ac9be098d4bff9081105b6202922b1134">More...</a><br /></td></tr>
<tr class="separator:ac9be098d4bff9081105b6202922b1134"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abef420732eca033c08c131df73623521"><td class="memItemLeft" align="right" valign="top">word&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#abef420732eca033c08c131df73623521">Ireg</a> (word offset)</td></tr>
<tr class="memdesc:abef420732eca033c08c131df73623521"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value of an input register. <a href="#abef420732eca033c08c131df73623521">More...</a><br /></td></tr>
<tr class="separator:abef420732eca033c08c131df73623521"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a493b0fc75ea3ba076f7c9a25e491bcbe"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a493b0fc75ea3ba076f7c9a25e491bcbe">Ists</a> (word offset, bool value)</td></tr>
<tr class="memdesc:a493b0fc75ea3ba076f7c9a25e491bcbe"><td class="mdescLeft">&#160;</td><td class="mdescRight">Change the value of a discrete input This value will be returned when bus read,. <a href="#a493b0fc75ea3ba076f7c9a25e491bcbe">More...</a><br /></td></tr>
<tr class="separator:a493b0fc75ea3ba076f7c9a25e491bcbe"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a833a76980e46be4995d2ca4ce5d2e51b"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a833a76980e46be4995d2ca4ce5d2e51b">Ists</a> (word offset)</td></tr>
<tr class="memdesc:a833a76980e46be4995d2ca4ce5d2e51b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value of a discrete input. <a href="#a833a76980e46be4995d2ca4ce5d2e51b">More...</a><br /></td></tr>
<tr class="separator:a833a76980e46be4995d2ca4ce5d2e51b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a101809cdd4734537bab58dc315a840b4"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classModbus.html#a101809cdd4734537bab58dc315a840b4">Modbus</a> ()</td></tr>
<tr class="memdesc:a101809cdd4734537bab58dc315a840b4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default constructor. <a href="#a101809cdd4734537bab58dc315a840b4">More...</a><br /></td></tr>
<tr class="separator:a101809cdd4734537bab58dc315a840b4"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classModbus.html" title="Modbus base class. ">Modbus</a> base class. </p>
<p>Definition at line <a class="el" href="Modbus_8h_source.html#l00053">53</a> of file <a class="el" href="Modbus_8h_source.html">Modbus.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<td class="memname">Modbus::Modbus </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>Default constructor. </p>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="af10a81e46f971daa4ce429d39776378b"></a>
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<td class="memname">void Modbus::addCoil </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>value</em> = <code>false</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Add a coil. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>coil offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>default value </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a73797fbd9af758aedc198ccd8f4585fb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">void Modbus::addHreg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>value</em> = <code>0</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Add a holding register to the list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>default value </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ab052ca5452b76bdb85235e898623cedc"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void Modbus::addIreg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>value</em> = <code>0</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Add a input register. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>default value </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="abead971752bc7b2a54cb508ad8a8a2c4"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void Modbus::addIsts </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>value</em> = <code>false</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Add a discrete input. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>input offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>default value </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a6b5ed2b967d4c43b578d21f562abc007"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool Modbus::Coil </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Change the value of a coil This value will be returned when bus read, the master can also modify it. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, false if coil not found. </dd></dl>
</div>
</div>
<a class="anchor" id="a208bb15086e008f05f2fa72398551d04"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool Modbus::Coil </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Return the value of a coil. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>coil value </dd></dl>
</div>
</div>
<a class="anchor" id="af13802f39b91279bd55538749bb76409"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool Modbus::Hreg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Change the value of a holding register This value will be returned when bus read, the master can also modify it. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, false if register not found. </dd></dl>
</div>
</div>
<a class="anchor" id="aa6b32867beace3ce557ea61183497607"></a>
<div class="memitem">
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<table class="memname">
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<td class="memname">word Modbus::Hreg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em></td><td>)</td>
<td></td>
</tr>
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<p>Return the value of a holding register. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>register value </dd></dl>
</div>
</div>
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<td class="memname">bool Modbus::Ireg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>Change the value of an input register This value will be returned when bus read. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, false if register not found. </dd></dl>
</div>
</div>
<a class="anchor" id="abef420732eca033c08c131df73623521"></a>
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<td class="memname">word Modbus::Ireg </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Return the value of an input register. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>register offset (PDU addressing: 0-9999) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>register value </dd></dl>
</div>
</div>
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<td class="memname">bool Modbus::Ists </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Change the value of a discrete input This value will be returned when bus read,. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>input offset (PDU addressing: 0-9999) </td></tr>
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, false if input not found. </dd></dl>
</div>
</div>
<a class="anchor" id="a833a76980e46be4995d2ca4ce5d2e51b"></a>
<div class="memitem">
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<table class="memname">
<tr>
<td class="memname">bool Modbus::Ists </td>
<td>(</td>
<td class="paramtype">word&#160;</td>
<td class="paramname"><em>offset</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Return the value of a discrete input. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>input offset (PDU addressing: 0-9999) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>input value </dd></dl>
</div>
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