'last_contact': Parameter(int, "Date and time when node last contacted plc", ro = True),
'key': Parameter(str, "(Admin only) Node key", max = 256),
'session': Parameter(str, "(Admin only) Node session value", max = 256, ro = True),
'last_contact': Parameter(int, "Date and time when node last contacted plc", ro = True),
'key': Parameter(str, "(Admin only) Node key", max = 256),
'session': Parameter(str, "(Admin only) Node session value", max = 256, ro = True),