ABB i-bus KNX Product Manual page 55

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ABB i-bus KNX
Commissioning
Send status "Contact monitoring"
Options:
The sending behaviour of the communication object Contact monitoring can be parameterized by this pa-
rameter. A contact fault is indicated via the communication object Contact monitoring. An error (value 1) is
displayed as soon as a current of about 30 mA (observe the tolerances) is detected with an open contact.
The contact position can only be correctly evaluated should the switching actions occur via KNX. The SE/S
cannot differentiate between manual switching and a cable break or device fault. Evaluation of the contact
monitoring occurs about two seconds after opening the contact.
•
no, update only: The status of the contact monitoring is always updated but not sent.
•
after a change: The status of the contact monitoring is then sent on the bus when the value of the
communication object Contact monitoring changes. Here the bus load, particularly for Energy Actua-
tors with multiple outputs, can be influenced significantly.
•
after request: The status of the contact monitoring can only be sent via the bus if a telegram with the
parameterized value is received on the communication object Request status values.
•
after a change or on request: The status of the contact monitoring is only sent via the bus if the status
changes or a telegram with the parameterized value is received on the communication object Request
status values.
Reaction on bus voltage failure
Options:
The output can adopt a defined state on bus voltage failure with this parameter.
For further information see:
load, ETS reset and application
no, update only
after a change
on request
after a change or on request
contact open
contact closed
contact unchanged
Reaction on bus voltage
update, page 134
failure, page 134, and Reaction on bus voltage recovery, down-
SE/S 3.16.1 | 2CDC 505 084 D0203 53