Technichal Manual Heating Actuators AKH
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3 Communication objects
3.1 Overview
The communication objects are for programming the actuator. The assignment can be done by these
objects.
For every channel, 20 objects are reserved. The communication objects for the single channels have
only influence to the belonging channels. The numbering of the communication objects is standardly
done this way, also if not all of the 20 objects are used or a channel is completely deactivated. So the
channel A has the objects from 0 to 19, the channel B from 20 to 39 and so on.
After the objects for the single channels, the global valid objects are following. These objects can
have influence to all channels. At the 4-fold actuator, these objects start with number 80 and at the
8-fold actuator with the number 160.
3.2 Global Communication objects
The global communication objects are following to the objects of the single channels. According to
the parameterization maximum 6 global objects can be shown. The first two objects, numbers
80/160 and 81/161, are for the switchover of summer/winter mode and for the switchover of
heating/cooling. The two following objects are state objects of the size of 1 Bit. The object 82 sends a
1, if at least one channel is active. The object 83/163 reports an error. The last two objects have the
size of 1 Byte and are for the shifting of the maximum control value or the responding of the current
value. The maximum control value can be adjusted by object 85165; the object 84/164 sends the
current maximum.
The following illustration shows the global communication objects:
Figure 4: global Communication objects (AKH-0800.01)
Die nachfolgende Tabelle zeigt die 6 globalen Kommunikationsobjekte:
Nr.
Function
Usage
80/160
Summer/Winter
Switchover
In, Write
81/161
Heating/Cooling
Switchover
In, Write
82/162
Heating/Cooling
requirement
Status Heating/Colling mode
In, Read
83/163
Fault
Display of power failure/short circuit
Out, Read
84/164
Max. control value
Status of the current maximum control
value
Out, Read
85/165
Max. control value
Adjustment of the maximum control value
Out, Write
Table 2: global Communication objects
