WebSocket Gateway¶

The WebSocket Gateway provides a JSON API via bidirectional WebSocket protocol for access to OPC UA server Services. Its configuration starts with XML tag WebSocketGateway in OpcUaWebServerModel.xml.

Default Configuration¶

<WebGateway>
    <Address>0.0.0.0</Address>
    <Port>8082</Port>
    <RequestTimeout>5000</RequestTimeout>
    <MaxConnections>100</MaxConnections>
    <IdleTimeout>3600000</IdleTimeout>

    <SSL>on</SSL>
    <CSRFile>@CONF_DIR@/ssl/crt/websocket.crt</CSRFile>
    <KeyFile>@CONF_DIR@/ssl/key/websocket.pem</KeyFile>
</WebGateway>

Configuration Settings¶

XML tag	Description
IP Address	IP address bound by the WebSocket gateway
Port	Port bound by the WebSocket gateway
MaxConnections	Maximum number of simultaneous connections that this server supports.
SSL	activates (“on”) or deactivates (“off”) the websocket security. The SSL tag is optional. If the SSL tag is not available, the websocket security is deactivated
CSRFile	Name of the certificate file. The tag must be specified when the websocket security is switched on
KeyFile	Name of the private key file. The tag must be specified when the websocket security is switched on.