Technical Manual Temperature Controller
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-
880 • Fax: +49
-2263-4588
• [email protected] • www.mdt.de
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The following settings are only available at the surface mounted and the flush mounted versions,
not for the SCN-RT®.01, because this device works only with values which are sent via the bus.
Send actual value after change of
This functions sets when the current temperature value shall be sent. By choosing the setting
disa le , o alue ill e
sent at all.
Send actual temperature cyclically
You can activate this function by choosing a time. Now, the room temperature controller
sends the current temperature periodically after the adjusted time. This function is
i depe de t f o the fu tio “e d a tual alue afte ha ge of . “o the te pe atu e
controller will send its current value also if there is no change of it.
Internal sensor correction value (value*0,1K)
You can correct the measured temperature value by this setting. By choosing a negative
value for this parameter, the measured value will be lowered and by choosing a positive
value, the measured value will be lifted. The value is multiplied by 0,1K, so the current value
can be lowered or lifted up to 5K. This setting is useful, when the sensor was built at an
unfavorable location, e.g. becoming draft or next to a window. When this function is
activated, the temperature controller will also send the corrected values.
All sensors are matched in-plant to 0,1K.
The chart shows the relevant communication object for the temperature value:
Number
Name
Length
Usage
0
Actual temperature value 2 Byte
sends the current temperature value
Table 5: Communication object temperature value
Internal/external sensor
This setting sets the balance between an internal and an external sensor. The setting 100%
intern deactivates any external sensor. By choosing any other setting, an external sensor will
be activated. So, also communication objects for the external are shown. A balance of 100%
extern deactivates the internal sensor and the temperature controller will only note values of
the external sensor.
The communication objects for an activated external sensor are shown at the chart:
Number
Name
Length
Usage
5
External sensor
2 Byte
sends the measured temperature value of the
external sensor
23
Error external sensor
1 Bit
sends an error, when the external sensor sends
no value for more than 30min
Table 6: Communication objects external sensor
