MDT KNX Smart 55 BE-JTA5504.01, Техническое руководство

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Technical Manual
Blind Push Button Smart 55
BE-JTA5504.01
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: +49-2263-
880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de
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4.2.1 Time settings
The following table shows the possible settings:
ETS-Text
Dynamic range
[Default value]
Comment
System time mode

Master

Slave

Slave (Master on failure)
Setting according to which operating
mode the time switch works.
Send system time
cyclically every not active
1 min – 24 h
[1 h]
Only for operating mode "Master".
Defines the transmission intervals of
the time.
Send system time
cyclically on failure
every not active
1 min – 24 h
[1 h]
Only for operating mode "Slave
(Master on failure)".
Defines the
transmission intervals of the time .
Automatic changeover of
summertime

not active

active (Europe)

active (individual)
Defines whether the clock should
automatically change between
summer and winter time.
Shift

1 h

2 h
Only shown for "active (individual)".
Setting the difference between
summer and winter time.
Table 7: Settings – Time
When operating as a " Master ", the system time is actively sent from the unit to the bus.
When selected as a " Slave ", the unit receives the system time from another unit on the bus, for
example via an MDT IP Interface/Router.
With the setting "
Slave (Master on failure) ", the unit is set as a slave. If the system time is not
received from the external timer within a certain time, the unit becomes the "Master" and sends the
current time cyclically to the bus.
Note! A time must be defined for the function. The time for cyclical transmission of the "Slave"
should be set the same as the time for cyclical transmission of the "Master".
The " Automatic changeover of summertime " can be done in two ways. With the setting " active
(Europe) " the changeover takes place automatically at the set times in spring and autumn. With the
setting " active (individual) ", the times can be set by the user. When activated, the following table
appears and is then configured accordingly:
Figure 5: Setting – Changeover summertime individual
Furthermore, it can be set whether the time shift should be 1 hour or 2 hours.
The table shows the objects relevant for date and time:
Number Name/Object Function Length Usage
38 Time 3 Byte Sending/receiving the time
39 Date 3 Byte Sending/receiving the date
40 Time / Date 8 Byte Sending/receiving time and date
Table 8: Communication objects – Time/Date