Time Settings - MDT KNX Smart 55 BE-JTA5504.01 Technical Manual

Technical Manual
Blind Push Button Smart 55

4.2.1 Time settings

The following table shows the possible settings:
ETS-Text
System time mode
Send system time
cyclically every
Send system time
cyclically on failure
every
Automatic changeover of
summertime
Shift
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
38 Time
39 Date
40 Time / Date
Table 8: Communication objects – Time/Date
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
16
Phone: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de
BE-JTA5504.01
Dynamic range
[Default value]

Master

Slave

Slave (Master on failure)
not active
1 min – 24 h
[1 h]
not active
1 min – 24 h
[1 h]

not active

active (Europe)

active (individual)

1 h

2 h
Length Usage
3 Byte Sending/receiving the time
3 Byte Sending/receiving the date
8 Byte Sending/receiving time and date
Comment
Setting according to which operating
mode the time switch works.
Only for operating mode "Master".
Defines the transmission intervals of
the time.
Only for operating mode "Slave
(Master on failure)". Defines the
transmission intervals of the time.
Defines whether the clock should
automatically change between
summer and winter time.
Only shown for "active (individual)".
Setting the difference between
summer and winter time.