Hello!
As I am a pretty new user, I must learn quickly, that all the mentioned documentation regarding api is either outdated, incomplete or simply not really helpful.
Therefore I just want to share each bit I find out by trying.
If you want to receive the single information of updateTime and value of a SensorBinary with the nodeID=2, the http-api-commands read contrary to other publications:
http://yourIP:8083/ZWaveAPI/Run/devices ... updateTime
result: 1456407015 (unix timestamp)
http://yourIP:8083/ZWaveAPI/Run/devices ... evel.value
result: true or false
Frequently you see:
http://yourIP:8083/ZWaveAPI/Run/devices ... el.valueOf()
which does not work at all.
Best regards,
skohrt