Device General Commands
General Command ( SPAD.neXt <--> Device) on Channel 0
Every 10 seconds SPAD.neXt will send a PING to the device and expects a PONG in response containing the received TICKET as payload.
When SPAD.neXt exits it will send an
0,END;command to the device, so the device knows SPAD.neXt is exiting.