Domain Lockout

Domain: Lockout (0x06)

COS	Yes
Access	R/W
Data length	8 bytes

Locks local thermostat controls so the homeowner cannot change mode/fan/setpoints (or only within limits).

Byte	Field	Values
0	Lockout type	0 None (default), 1 Full, 2 Partial
1	Mode lockout	0 Disabled, 1 Enabled (ignore if type Full/None)
2	Fan lockout	0 / 1
3	Dehumidifier lockout	0 / 1
4	Menu screen lockout	0 Disabled, 1 Enabled
5	Setpoint lockout	0 Off; 1 Range; 2 Timed+Range; 3 Full
6	Setpoint range	Index → ±1–20 °F (0.5–10 °C steps) — see guide table
7	Setpoint time	Index → 15–480 minutes in 15 min steps — for timed lockout

Full: enables mode/fan/dehum lockouts and full setpoint lockout. None: clears those. Partial: per-field configuration.

Increment Setpoint over protocol is not restricted by lockouts.

Guide typo: Byte 4 (Menu Screen Lockout) lists "0: Disabled 1: Enabled 3-255: Reserved", leaving value 2 unaccounted; presumed intent is 2–255 reserved. See Guide Errata.