Temperature Measurement; Internal Temperature Recording - ABB 2CSYK1201C Product Manual

MYLOS Building Automation
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0 = automatic
1 = comfort
2 = standby
3 = night
4 = frost/heat protection
5 – 255 = not allowed
7.2

Temperature measurement

The ambient temperature controller with display can record the temperature with an internal sensor.
7.2.1

Internal temperature recording

The device has an internal temperature sensor. The measured value is sent to the controller as a current value. The
value is also shown on the display at the same time ("display in normal operation": "current actual value").
The measured temperature can also be sent over the bus with the 2-byte communication object "send current
value - temperature sensor" to, for example, display as a visualisation. The transmission is done depending on the
parameter "send current value on change up" and "send current value cyclically". Both parameters are disabled by
default. This means that if the current temperature is to be sent, at least one setting must be enabled.
The setting "send current value on change up" has the advantage that even the smallest changes of the measured
temperature, adjustable from 0.1 K to 1.0 K, are sent over the bus. The disadvantage is that, for example, the setting
0.1 K and a large number of ambient temperature controllers in one installation increases the bus load.
The parameter "send current value cyclically" has the advantage that the current value is sent continuously, even
if the measured value does not change. The disadvantage is that fast changes may not be registered, because the
cycle time has been set too large. However, it should also not be set too small to prevent excessive bus loading.
Planning and use
MYLOS Building Automation | Planning and use 65
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