## Protección de referencia circular

La protección de referencia circular evita que su interfaz de usuario roja-roja no responda y que se inunde la instalación de KNX, deshabilitando dos nodos con el mismo enlace de dirección de grupo. <br/>
Por ejemplo, si vincula la salida * ***Pin de un nodo que tiene la dirección de grupo 0/1/1, a la entrada** **Ping de otro nodo que tiene la misma dirección de grupo 0/1/1, la protección se activará. <br/>

<img src = "https://raw.githubusercontent.com/supergiovane/node-red-contrib-knx-ultimate/master/img/wiki/circularreferenceprotection.png" width = "90%"> <br/> ** Copie este código y péguelo en su flujo** ```javascript

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```<br/>
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