Parameter Window: "Logic - ABB i-bus EIB Product Manual

®
ABB i-bus EIB / KNX
4.3.6 Parameter window:
"Logic"
© 2004 ABB STOTZ-KONTAKT GmbH
Project design and programming
The logic function makes up to two logic objects available for each output.
These objects are logically linked with the object "Switch". The parameter
window is enabled under "A: Function".
The logic function is always recalculated on receipt of an object value. The
object "Logical connection 1" is first evaluated together with the object
"Switch". The result is then liked with object "Logical connection 2".
The parameters are identical for both logic objects. The function is described
in the following section using the example of object "Logical connection 1".
Explanations about the logic function can be found in section 3.2.2. Please
note the function diagram in section 3.2.6.
Parameter: "Function of object 'Logical connection ...'"
The logic function of the object "Logical connection ..." is defined here. All
three standard operators are possible (AND, OR, XOR). The gate function is
also available which can block switching commands.
Parameter: "Result is inverted"
The result of the logic operation can be inverted via this parameter: If the
logic result is "0", it is converted into a "1" (and vice versa).
Parameter: "Gate disabled, if 'Logical connection ...' is"
This parameter is visible if the "Gate function" has been selected. It defines
at which object value the gate is disabled i.e. telegrams to the object
"Switch" are ignored.
Parameter: "Object value after bus voltage recovery"
This parameter defines which value is assigned to the object "Logical
connection 1" or "Logical connection 2" on bus voltage recovery.
33