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<script type="text/html" data-help-name="rbe">
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<p>Report by Exception node - only passes on data if the payload has changed.</p>
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<p>It can also block until the value changes by a specified amount - deadband modes.</p>
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<p>It can also block unless, or ignore if the value changes by a specified amount.</p>
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<h3>Inputs</h3>
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<dl class="message-properties">
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<dt>payload
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@@ -22,12 +22,13 @@
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<dd>If triggered the output will be the same as the input.</dd>
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</dl>
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<h3>Details</h3>
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<p>In RBE mode this node will block until the <code>msg.payload</code> is
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different to the previous one. </p>
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<p>In Deadband modes the incoming payload must contain a parseable number and is
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output only if greater than + or - the band gap away from a previous value.</p>
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<p>In RBE mode this node will block until the <code>msg.payload</code>,
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(or selected property) value is different to the previous one. If required
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it can ignore the intial value, so as not to send anything at start.</p>
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<p>In the Deadband modes the incoming value must contain a parseable number and will block
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unless the change is 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>
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<p>In Narrowband mode the incoming payload is blocked if it is more than + or - the band gap
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<p>The Narrowband modes will block if the incoming value change is greater than + or - the band gap
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away from the previous value. Useful for ignoring outliers from a faulty sensor for example.</p>
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<p>Both Deadband and Narrowband allow comparison against either the previous valid output value, thus
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ignoring any values out of range; or the previous input value, which resets the set point, thus allowing
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