node-red-contrib-opcua/opcua/109-opcuadiscovery.html

A Node-RED node to communicate via OPC UA based on node-opcua library.

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<script type="text/javascript">
    RED.nodes.registerType('OpcUa-Discovery',{
        category: 'opcua',
        color:"#3FADB5",
        defaults: {
            name: {value:""}
        },
        inputs:1,
        outputs:1,
        align: "right",
        icon: "opcuanodeLogo.png",
        label: function() {
            return this.name || "OPC UA Discovery";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>

<script type="text/x-red" data-template-name="OpcUa-Discovery">
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="">
    </div>
</script>

<script type="text/x-red" data-help-name="OpcUa-Discovery">
    <p>OPC UA Discovery server for the OPC UA Servers to register themselves.</p>
	  <p>UAExpert and other OPC UA Clients can look available servers from the discovery server.</p>
    <p>NOTE: You can check port status on Windows with command: netstat -ano | findstr :4840</p>
    <p>      UaExpert can be listening port and then you will get error message: 'port is in use'</p>
</script>