
Technical Manual
–
Central Operation Unit Smart
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Phone: +49-2263-
880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
135
135
2 Byte temperature shift
With the 2-byte temperature shift, the Central operating unit sends a 2-byte temperature value
which is added or subtracted from the set basic comfort value.
The Central operating unit sends the shift by the set step width at each keystroke.
In order for the display and the current reference value to be synchronous, the limits of the setpoint
shift must be specified in the Central operating unit and have to be set to the same values as in the
controller.
The following table shows the available communication objects:
Number Name
Length Usage
0
Function 1
–
Setpoint shift
2 Byte
Sends the Setpoint shift
2
Function 1
–
State current
setpoint
2 Byte
Object for the status value of the current
setpoint
3
Function 1
–
State setpoint shift
2 Byte
Object for the status value of the setpoint
shift
Table 132: Communication objects - Temperature shift via 2 byte
For channel A of the heating actuator and function 1 of the Central operating unit Smart this means:
Central operating unit Smart (Function 1)
Heating actuator (Channel A)
Object 0
–
Setpoint shift
Object 8
–
Setpoint value offset (2 Byte)
Object 2
–
State current setpoint
Object 9
–
Current setpoint
Object 3
–
State current setpoint shift
Need only be connected if several units carry out
a setpoint shift at the same time. In this case,
this object is connected to all objects which
influence the setpoint shift (also object 0 of the
Central operating unit Smart).
Table 133: Example
–
2 Byte Setpoint shift with MDT heating actuator