This parameter is used to retrieve the total device hours of an fixture.

Data Type	DS_UNSIGNED_DWORD	PDL Size	4
Cmd Class	CC_GET	Unit	UNITS_NONE
Prefix	PREFIX_NONE	Default	0x00
Min	0x00	Max	0x00
Description	„TOTAL_DEVICE_HOURS“

GET Command 0x8403

Controller Incoming Command:

(Port ID)	(Msg. Count)	(Sub-Device)
0x01-0xFF	0x00	0x0000 (Root) or 0x0001-0x0200
(CC)	(PID)		(PDL)
GET_COMMAND	TOTAL_DEVICE_HOURS (0x8403)		0x00

Controller Response:

(Response Type)	(Msg. Count)	(Sub-Device)
ACK	0x00-0xFF	Copy of Controller SD
(CC)	(PID)		(PDL)
GET_COMMAND_RESPONSE	TOTAL_DEVICE_HOURS (0x8403)		4
(PD)
Total Device Hours (32-bit)