TR80 - Installation and Operation Guide 58
0111 (224) : mg/m3
1000 (256) : ug/m3
1001 (288) : ppm
1010 (320) : ppb
Bits 11..9: air quality icons
000 (0): none
001 (512): CO2
010 (1024): TVOC
011 (1536): PM2.5
100 (2048): PM10
Bit 13..12: Value alignment
00 (0) : right align;
01 (4096) : center
10 (8192): left align
3. 13. 4 Display Values Configuration
If no updates are received from the master controller for any value for the time defined in
'Display Values Receive Timeout', that value is considered stale and dropped from the list
to be displayed, until a fresh value is received again. This function can be disabled by set-
ting the parameter to 0.
‘Home Display Parameter’ is the display value that the screen returns to when no buttons
are touched for a while. It can be selected as follows. If this is set for ‘auto-scroll’ the screen
will automatically scroll between available values every few seconds.
0: auto-scroll
1: Room Temperature
2: Set Temperature
3: Room Humidity
4: Room Air Quality
5: Room CO
2
6: Pressure
7: Air flow volume
8: Outdoor Temperature
Register
type
Relative
Address
Absolute
Address
Dir Name
Config
Parameter
Unit Range
Default
value
Holding 2600 42601 R/W Home display parameter 600 enum see below 1
Holding 2601 42602 R/W
Display values receive
timeout
601 min 0-60 mins 5
Holding 2602 42603 R/W
TVOC unit
(unit to display for
register 1602)
602 enum
0: ug/m3
1: mg/m3
2: ppm
3. ppb
0
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