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node-red-nodes/function/rbe/rbe.html

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<script type="text/x-red" data-template-name="rbe">
<div class="form-row">
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<label for="node-input-func"><i class="fa fa-wrench"></i> <span data-i18n="rbe.label.func"></span></label>
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<select type="text" id="node-input-func" style="width:74%;">
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<option value="rbe" data-i18n="rbe.opts.rbe"></option>
<option value="deadbandEq" data-i18n="rbe.opts.deadbandEq"></option>
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<option value="deadband" data-i18n="rbe.opts.deadband"></option>
<option value="narrowbandEq" data-i18n="rbe.opts.narrowbandEq"></option>
<option value="narrowband" data-i18n="rbe.opts.narrowband"></option>
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</select>
</div>
<div class="form-row" id="node-bandgap">
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<label for="node-input-gap">&nbsp;</label>
<input type="text" id="node-input-gap" data-i18n="[placeholder]rbe.placeholder.bandgap" style="width:95px;">
<select type="text" id="node-input-inout" style="width:54%;">
<option value="out" data-i18n="rbe.opts.out"></option>
<option value="in" data-i18n="rbe.opts.in"></option>
</select>
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</div>
<div class="form-row" id="node-startvalue">
<label for="node-input-start"><i class="fa fa-thumb-tack"/> <span data-i18n="rbe.label.start"></span></label>
<input type="text" id="node-input-start" data-i18n="[placeholder]rbe.placeholder.start" style="width:71%;">
</div>
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<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"/> <span data-i18n="rbe.label.name"></span></label>
<input type="text" id="node-input-name" data-i18n="[placeholder]rbe.label.name" style="width:71%;">
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</div>
</script>
<script type="text/x-red" data-help-name="rbe">
<p>Report by Exception node - only passes on data if the payload has changed.</p>
<p>It can also block until the value changes by a specified amount - deadband modes.</p>
<h3>Inputs</h3>
<dl class="message-properties">
<dt>payload
<span class="property-type">number | string | (object)</span>
</dt>
<dd>RBE mode will accept numbers, strings, and simple objects. Other modes must provide a parseable number.</dd>
<dt class="optional">topic <span class="property-type">string</span>
</dt>
<dd>if specified the function will work on a per topic basis.</dd>
</dl>
<h3>Outputs</h3>
<dl class="message-properties">
<dt>payload
<span class="property-type">as per input</span>
</dt>
<dd>If triggered the output will be the same as the input.</dd>
</dl>
<h3>Details</h3>
<p>In RBE mode this node will block until the <code>msg.payload</code> is
different to the previous one. </p>
<p>In Deadband modes the incoming payload must contain a parseable number and is
output only if greater than + or - the band gap away from a previous value.</p>
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<p>Deadband also supports % - only sends if the input differs by more than x% of the original value.</p>
<p>In Narrowband mode the incoming payload is blocked if it is more than + or - the band gap
away from the previous value. Useful for ignoring outliers from a faulty sensor for example.</p>
<p>Both Deadband and Narrowband allow comparison against either the previous valid output value, thus
ignoring any values out of range; or the previous input value, which resets the set point, thus allowing
gradual drift (deadband), or a step change (narrowband).</p>
<p><b>Note:</b> This works on a per <code>msg.topic</code> basis. This means that a single rbe node can
handle multiple different topics at the same time.</p>
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</script>
<script type="text/javascript">
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RED.nodes.registerType("rbe", {
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color:"#E2D96E",
category: 'function',
defaults: {
name: {value:""},
func: {value:"rbe"},
gap: {value:"",validate:RED.validators.regex(/^(\d*[.]*\d*|)(%|)$/)},
start: {value:""},
inout: {value:"out"}
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},
inputs:1,
outputs:1,
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icon: "rbe.png",
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label: function() {
var ll = (this.func||"").replace("Eq","")||"rbe";
return this.name||ll||"rbe";
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},
labelStyle: function() {
return this.name?"node_label_italic":"";
},
oneditprepare: function() {
//$( "#node-input-gap" ).spinner({min:0});
if ($("#node-input-inout").val() === null) {
$("#node-input-inout").val("out");
}
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$("#node-input-func").on("change",function() {
if ($("#node-input-func").val() === "rbe") {
$("#node-bandgap").hide();
} else {
$("#node-bandgap").show();
}
if ($("#node-input-func").val() === "narrowband") {
$("#node-startvalue").show();
} else {
$("#node-startvalue").hide();
}
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});
}
});
</script>