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
113
113
The temperature can be shifted in 4 different ways:
1 Bit temperature shift
With the 1-bit temperature shift the central operating unit merely transmits the command 1 for a
shift of the setpoint upwards and a 0 for a shift of the setpoint downwards.
The following table shows the available communication objects:
Number
Name
Length
Usage
100
Direct buttons 1/2
–
Setpoint shift
1 Bit
Sends the Setpoint shift
101
Direct buttons 1/2
–
State actual temperature
2 Byte
Receiving an external temperature for the
display of the current temperature - is only
displayed if the parameter "Use internal
temperature value" is set to "not active"
102
Direct buttons 1/2
–
State current setpoint
temperature
2 Byte
Receiving the current setpoint temperature of
the temperature controller; to display the
status
Table 112: Communication objects - Temperature shift via 1 bit
1 Byte temperature shift
With the 1-byte temperature shifting, the central operating unit sends a 1-byte value which is
multiplied by the step width set in the controller. In order for the display and the current setpoint
value to be synchronous, the step width and the limits of the setpoint shift have to be specified in the
central operating unit.
The following table shows the available communication objects:
Number
Name
Length
Usage
100
Direct buttons 1/2
–
Setpoint shift
1 Bit
Sends the Setpoint shift
101
Direct buttons 1/2
–
State actual temperature
2 Byte
Receiving an external temperature for the
display of the current temperature - is only
displayed if the parameter "Use internal
temperature value" is set to "not active"
102
Direct buttons 1/2
–
State current setpoint
temperature
2 Byte
Receiving the current setpoint temperature of
the temperature controller; to display the
status
103
Direct buttons 1/2
–
State setpoint shift
1 Byte
Receives the current setpoint shift; has to be
connected to all 1 byte objects which send the
setpoint shift to the controller in order to
correctly evaluate the current status of the
setpoint shift
Table 113: Communication objects - Temperature shift via 1 byte
