Bus Voltage Recovery; Ets Reset; Download (Dl) - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and Application
4.2

Bus voltage recovery

General

A control value can be predefined at bus voltage recovery. The corresponding communication object
values are set, see

Time-dependent functions are non-functional and must be restarted, e.g. valve purge.

Status communication objects are sent as long as the option after a change or after a change or
request has been set.

The send delay is only active at bus voltage recovery!

Forced operation is re-established and executed as a priority. All other priorities, e.g. blocking and
valve purge are reset.
Control of valve drives

The purge cycle restarts (if activated).

The value parameterized for bus voltage recovery is set with the control value priority and will be
replaced if a new control value is received.
4.3

ETS reset

What is an ETS reset?
Generally an ETS reset is defined as a reset of the device via the ETS. The ETS Reset is initiated in the
ETS3 under the menu point Commissioning with the function Reset device. The application program is
stopped and restarted, i.e. all the states set beforehand are lost. The device is reset to the original state
(control value 0 % and timer are restarted).
4.4

Download (DL)

The communication object value of the control value remains unchanged with a download. During the
download, the output behaves just as it would at bus voltage failure. After a download, the value active
before the download with be set again. Timers remain stationary and will be restarted. Status values of the
control values are updated and sent.
Note
After a download with a change, the parameter complies in behaviour to a reset of the device in the
ETS.
If a download of the application is again undertaken (full download) after a full discharge, the behaviour
is the same as after an ETS reset.
After the application is removed or after an interrupted download, manual operation no longer functions.
Table page 50.
VAA/S x.230.2.1 | 2CDC 508 101 D0201 49