43
TR80 - Installation and Operation Guide
3. Secure: Device will lock automatically on timeout. User needs to enter a 4-digit pass-key to
unlock and access controls.
4. No access: device will always be in locked status. No user access to settings in anyway.
3.12 HVAC
3. 12. 1 Temperature setting
The TR80 can operate in absolute or relative setpoint mode. In relative setpoint mode, the user
does not see the absolute setpoint, but has the option to shift it up or down, typically by +/-5
degrees.
Holding register ‘User Setpoint’ changes every time the user makes an adjustment on the wall
module. Master controller can write to this register to override the user selected setpoint. Mas
-
ter controller can also reset the setpoint to the default value by using the ‘Override Reset’ regis
-
ter explained before in the ‘Device’ section.
The master controller can disable user setpoint adjustment by setting the min and max regis
-
ters to the same value.
‘User setpoint limited’ register is derived from ‘User setpoint’ but internally limited between
min & max settings. The ‘User Setpoint’ register value can fall outside of the min/max range, if
the master controller reduces the range by writing to the min/max registers, for example when
switching to unoccupied or standby modes.
Register
type
Relative
Address
Absolute
Address
Dir
Name
Config
parame
ter
Type
Range
Scale
Default
value
Holding
2200
42201
R/W
Setpoint
style
200
enum
0: absolute
1: relative
-
0
Holding
2201
42202
R/W
Setpoint
minimum
201
signed
int
absolute: -
50…+150 °C
relative: -
15…0 K
0.1
Abs:
10°C
Rel: -5 K
Holding
2202
42203
R/W
Setpoint
maximum
202
signed
int
absolute: -
50…+150 °C
relative:
0…15 K
0.1
Abs:
10°C
Rel: 5 K
Holding
2203
42204
R/W
Default
Setpoint
203
int
10…30° C
0.1
22 °C
Holding
1200
41201
R/W
User
setpoint
-
signed
int
0.1
Abs:
22°C
Rel: 0 K
Input
202
30203
R
User
setpoint
limited
-
signed
int
0.1