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ABB i-bus
KNX
Planning and application
154 2CDC 505 056 D0208 | SA/S
The Logic function is always re-calculated when an object value is received.
Example GATE function
•
The GATE connection is set to disable as soon as the communication object
Logical connection x
receives a 0.
•
The communication object
Logical connection 1
receives a 0, i.e. the GATE is disabled.
•
The output of the logical connection is 0.
•
The communication object
Switch
receives 0, 1, 0, 1. The output of the logic operation always
remains 0.
•
The communication object
Logical connection x
receives a 1, i.e. the GATE is enabled. The enabling
condition (value 0 or 1) can be parameterized.
•
However, the output of the logical connection is not recalculated.
Please note
The values of communication objects
Logical connection 1/2
and
Switch
can be parameterized on bus
voltage recovery.
If values are not assigned for communication objects
Logical Connection 1/2
, they will be deactivated.
On reset via the bus, the values of communication objects
Logical Connection 1/2
remain unchanged.
Please note
With the SA/S x.x.x.1 the current switch status is also sent via the communication object
Status Switch
if
a telegram is received via communication object
Logical connection x
. The prerequisite is that the send
reaction of the switch status (see parameter window
Parameter window
A: General
, p. 66) is set to
always
.
This is not the case with the SA/S x.6.1, SA/S x.10.1 and SA/S x.16.1. The switch status is only sent if a
telegram is received on the communication object
Switch
.
Содержание i-bus SA/S 12.10.2.1
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