ABB i-bus KNX Room Master Premium RM/S 2.1, Product Manual, Page: 81 / 276

ABB i-bus
®
KNX
Commissioning
© 2008 ABB STOTZ-KONTAKT GmbH 79
Function of logical connection
Options: AND
OR
XOR
GATE
The logical function of the communication object
Logical connection 1
is defined with the switch command. All three standard operations
(AND, OR, XOR) are possible. Furthermore, the GATE operation can
be used to inhibit switch commands.
For further information see: Connection/Logic , page 220
Result is inverted
Options: no
yes
•
yes:
The result of the logical connection can be inverted.
•
no:
There is no inversion.
Object value "Logical connection 1"
after bus voltage recovery
Options: not write
write with 0
write with 1
This parameter defines the value allocated to the communication object
Logical connection 1
with bus voltage recovery.
•
not write:
after bus voltage recovery the value 0 remains in the
communication object
Switch
. This value remains as it is until the
communication object is modified via the bus. The contact
position is only re-evaluated and set at this time. The correct
status of the contact position is displayed via the communication
object
Status switch
independently of the value of the
communication object
Switch
. A precondition however is that no
manual switching actions have occurred on the outputs A, B, C or
D.
A further parameter appears if GATE is selected with the parameter
Function of logical connection
:
Gate disabled, if object value
"Logical connection 1" is
Options: 1
0
This parameter defines the value at which the communication object
Logical connection 1
disables the GATE.
Disabling of the gate means that the telegrams received on the
Switch
communication object are ignored. As long as the GATE is activated,
the value which was sent last to the input of the GATE remains on the
output. After a gate is blocked, the value which was on the output
before the block remains on the output of the gate.