S2GW Request for config

S2GW asks B3 for the nodes and sensors configuration after startup, reboot and every 15 minutes. It also asks for it if B3 informs it about the configuration change.

<NodeServer>
<MacAddress>b8:27:eb:c7:38:d9</MacAddress>
<NodeType>9300</NodeType>
<Status>Not configured</Status>
<ReqSettings>true</ReqSettings>
</NodeServer>