iSMA-B-W0202 User Manual
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DMP263en | 1st Issue rev. 3 | 05/2022
page 32 of 41
Cooling Mode
In this mode, the output is controlled as a typical thermostat, based on the Setpoint
register and control value (input value) with differential parameter defined in the
Differential register.
The output signal works in 2 states, low and high.
If the control value is lower than or equal to the difference of the Setpoint register and
Differential register, the output is in low state.
If the control value is higher than or equal to the sum of the Setpoint register and
Differential register, the output is in high state.
Output in low state:
Control value <= Setpoint
–
Differential
Output in high state:
Control value >= Se Differential
The cooling mode algorithm is shown in chart below.
Figure 19. Cooling mode algorithm
7.5.2 Command Register (40020)
The module has a special Command register (40020). The Command register is used to
remotely execute an action (simulate light switch/PIR). The action is executed by changing
WARNING!
In the case if the temperature sensor has failed (got disconnected or shortcut), then
the heating mode does not work, and the output stays in the false state.
WARNING!
In the case if the temperature sensor has failed (got disconnected or shortcut), then
the heating mode does not work, and the output stays in the false state.