Downlink Commands for Auxiliary Features

This section describes the downlink commands for the auxiliary features.

Configure General Parameters

Command description:
Item Channel Type Byte Value Example
Reboot ff 10 1 ff ff10ff
Reporting Interval ff 8e 3 Byte 1: 00

Byte 2: Interval, unit: min, range: 1-1440, default: 10

 Set 20 minutes: ff8e001400
Collecting Interval ff 02 2 Unit: s, range: 10-60, default: 30 Set 30s: ff021e00
Temperature Unit ff eb 1 00=°C, 01=°F (default) Set unit as °F: ffeb01

Configure Time Parameters

Command description:
Item Channel Type Byte Value Example
Sync Time from LNS ff 4a 1 ff Ask device to sync time from LNS: ff4aff
Time Zone ff bd 2 INT16/60 UTC-4: ffbd10ff
Timezone Index f9 2f 1 Range: 1-37, 1=UTC-12, …, 15=UTC, …, 37=UTC+14 UTC-4: f92f0a
Daylight Time Saving ff ba 10 Byte 1: 00-disable, 01-enable

Byte 2: DST bias, unit: min, range: 1-120
Byte 3: Start month, range: 1-12
Byte 4: Start week

  • Bit 7-4: week number, range: 1-5
  • Bit 3-0: weekday, range: 1-7
Byte 5-6: Start time, unit: min, range: 0-1439

Byte 7: End month, range: 1-12

Byte 8: End week

Byte 9-10: End time, unit: min, range: 0-1439

 Enable DST, start time is October 1st Sunday 2:00, end time is April 1st Sunday 2:00, bias is 60 minutes: ffba013c0a17780004177800
Time Zone Offset f9 30 2 Range: -1440 ~ 1440, Unit: min, default: 0 Offset is -300 minutes: f930d4fe

Configure Screen Parameters

Command description:
Item Channel Type Byte Value Example
Screen Display f9 08 1 00=Enable (default) , 01=Disable plan display, 02=Disable all Disable plan display: f90801
Screen Time Display f9 91 1 00=Disable, 01=Enable (default) Disable time display: f99100
Time Mode f9 2c 1 01=12-Hour Clock (default), 02=24-Hour Clock Set 24-hour clock: f92c02

Configure Child Lock

Command description:
Item Channel Type Byte Value Example
Child Lock Setting ff 25 2 Byte 1: ff

Byte 2: per bit 0=disable, 1=enable

Bit Option
0 System On/Off
1 Temperature+
2 Temperature-
3 Fan mode
4 Temperature control mode
5 Reset and reboot
Lock temperature +/-: ff2506
Child Lock Enable f9 31 1 00=Disable (default), 01=Enable Enable child lock: f93101
Temporary Unlock f9 5c 3 Byte 1: per bit 0=disable, 1=enable, at least two buttons must be enabled
Bit Option
0 Button 1: System On/Off
1 Button 2: Temperature+
2 Button 3: Temperature-
3 Button 4: Fan mode
4 Button 5: Temperature control mode

Byte 2-3: unlock time, unit: s, range: 1-65535

 Press button 1 and 2 together to release the child lock for 10 minutes: f95c065802
Offline Unlock Heartbeat f9 2a 1 Range: 0-255, the value increments in a loop with each heartbeat packet transmission. f92a01
Offline Timeout f9 29 1 Range: 1-60, unit: min, default: ff=disable Timeout is 10 minutes: f9290a

Configure Data Storage & Retransmission

Command description:
Item Channel Type Byte Value Example
Data Storage ff 68 1 00=Disable, 01=Enable Enable data storage: ff6801
Data Retransmission ff 69 1 00=Disable, 01=Enable Enable data retransmission: ff6901
Data Retransmission Interval ff 6a 3 Byte 1: 00

Byte 2-3: Interval, unit: s, range: 30-1200, default: 600

 Data retransmission interval is 1200s: ff6a00b004

Configure Calibration Parameters

Command description:
Item Channel Type Byte Value Example
Temperature Calibration ff ab 3 Byte 1: 00=disable, 01=enable

Byte 2-3: calibration value, INT16/10, unit: °C, range: -60-60

 Enable and set the calibration value as -0.3: ffab01fdff
Humidity Calibration ff f9 3 Byte 1: 00=disable, 01=enable

Byte 2-3: calibration value, INT16/10, unit: %RH, range: -100-100

Configure Temperature Threshold Parameters

Command description:
Item Channel Type Byte Value Example
Temperature ff 06 9 Byte 1: 00=disable, 01=below, 02=above, 03=within, 04=below or above

Byte 2-3: Min. threshold, INT16/10, unit: °C, range: -20-60
Byte 4-5: Max. threshold, INT16/10, unit: °C, range: -20-60
Byte 6-9: 00000000

 Enable and below threshold value is 10°C: ff06016400000000000000
Persistent Low Temperature Byte 1: 09

Byte 2-3: Difference, INT16/10, unit: °C, range: 1-10
Byte 4-7: 00000000
Byte 8-9: Duration, unit: s, range: 0-3600, default: 3600

 Enable and difference is 1°C, duration is 10 minutes: ff06090a00000000005802
Persistent High Temperature Byte 1-3: 120000

Byte 4-5: Difference, INT16/10, unit: °C, range: 1-10
Byte 6-7: 0000
Byte 8-9: Duration, unit: s, range: 0-3600

 Enable and difference is 1°C, duration is 10 minutes: ff061200000a00 00005802

Configure Room Card Parameters

Command description:
Channel Type Byte Value Example
ff c1 4 Byte 1: 00-disable (default), 01-enable

Byte 2: 00=System on/off, 01=Insert an event
Byte 3: Insert event (bit7-4)+Remove event (bit3-0)

Bit Event
0000 Wake
0001 Away
0010 Home
0011 Sleep
0100 Occupied
0101 Unoccupied
0110 ECO

Byte 4: 00=Low level is insert card (default), 01=High level is insert card

 Enable room card settings, action is Insert an event, insert card event is Wake, remove card event is Away: ffc101010100