Busch-Jaeger SD/U12.55.11-825 Manual page 166

Type of comparator:
■
Options:
This function can be used to compare two temperatures. Or a temperature can be compared
with an internal specified temperature value (constant).
Temperature with a constant:
■
– This function makes an input available with a 2-byte communication object. On this
object temperature telegrams are received and compared, which are sent from a KNX
temperature sensor for example.
The following parameters are enabled:
Input 2 [°C]:
■
Options:
This parameter is used to specify the value with which the temperature at input 1 is to be
compared.
Hysteresis:
■
Options:
2 temperatures:
■
– This function makes two separate inputs with 2-byte communication objects available.
On these objects temperature telegrams are received and compared with each other,
which are sent from KNX temperature sensors for example. No additional parameters
available.
– The maximum deviation of the constant temperature, for example, is specified via the
hysteresis before the output changes.
Object type of the output:
■
Options:
The parameter is used to specify whether the output object sends a 1-bit value (0/1) or a 1-byte
value (0 - 255).
1 bit:
■
– The following supplementary parameters are available:
Sending value when input 1 > input 2:
■
Options:
The parameter is used to specify which output object is sent (ON or OFF) when input 1 is
logically larger than input 2.
Product manual 2CKA001473B5472
Control elements and application parameter
Temperature with a constant
2 temperatures
Setting options from -30 - +70
Setting options from 0.5 - 10
1 bit
1 byte
OFF telegram
ON telegram
Application "Logical functions"
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