Communication objects
Communication objects
Product manual 2CKA001473B9679
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12.1.39 RTC - Dew point alarm
Name
Object function
Data type
RTC: Dew point alarm
Input
1.001 Switching
A dew point detector signals the occurrence of dew formation, e.g. on the cooling medium feed
lines of a cooling machine. The 1-bit communication object is used to set the controller into the
dew point protection mode. This causes the current setpoint to be set on the heat protection
setpoint in order to prevent the formation of water.
Notice
This protective mechanism is only active in the cooling mode. It remains in place
until it is cancelled by the value "0". When an alarm is active, manual operation
of the controller is blocked. The information is displayed by a corresponding icon
on the control unit.
12.1.40 RTC - Condensate water alarm
Name
Object function
Data type
RTC: Condensate water alarm
Input
1.001 Switching
RTC: Condensate water alarm
(master/slave)
Input
1.001 Switching
The 1-bit communication object is used to set the controller into the condensation protection
mode. This causes the current setpoint to be set on a value that cannot be reached, which
prevents the condensate collection container from overflowing.
This protective mechanism is only active in the cooling mode. It remains in place until it is
cancelled by the value "0". When an alarm is active, manual operation of the controller is
blocked. The information is displayed by a corresponding icon on the device.
Notice
When the master/slave operation is activated, the object "RTC: Condensate
water alarm (master/slave)" of the master and slave device must be connected
with the alarm transmitter.
12.1.41 RTC - Outside temperature for summer compensation
Name
Object function
Data type
RTC: Outside temperature for
summer compensation
Input
9.001 Temperature value
In order to save energy, and to ensure that the temperature difference occurring during entry
and exit of a climate-controlled building stays within comfortable limits, the reduction of room
temperature by cooling devices should be limited as a function dependent on the outside
temperature (summer compensation). This, for example, prevents the air-conditioning system
from running continuously when the outside temperature is 35°C in order to reduce the room
temperature to 22°C.
An open air temperature sensor is required for this application. For this the current outside
temperature must be made available to the controller via the 2-byte communication object.