Commands and functions
P.
174 of 349
System time
Setting the time and date of
the Enertex
®
EibPC manually
Synchronization with an
Internet timeserver (NTP)
Synchronization with the
KNX™ bus
Synchronization with the
application program
If you have no Internet connection, you can manually enter the time and date of the Enertex® EibPC.
By E
IB
PC – T
IME
OF
D
AY
AND
D
ATE
you reach the dialog shown in Figure 1. You can enter the current
date and time in the dialog and press
OK
. Alternatively, you can press the button
Use system time
to
set the system time of the PC, on which Eibstudio runs, equal to the system time of the EibPC.
Figure 1: Enter date and Time manually
The Network Time Protocol (NTP) is a standard for synchronizing clocks in computer systems via the
Internet. The local clock is synchronized by external timing signals which are directly sent from an
atomic clock of an NTP server. The synchronization takes place as soon as an Internet connection to
the address pool.ntp.org exists.
The system clock of the Enertex
®
EibPC can be controlled from the outside and can be read. Thus,
actuators etc. within the KNX
TM
bus can be synchronized with the Enertex
®
EibPC or the system
clock of the Enertex
®
EibPC can be adjusted.
There is both the possibility of sending data from the Enertex
®
EibPC to the KNX
TM
bus as well as
data from the KNX bus to the Enertex
®
EibPC.
Moreover, there is the possibility to read and change the system time in the application program by
means of variables. Please note that the timer functions can be disturbed by setting or changing,
respectively, the system time.
Concerning synchronization, the NTP server always takes precedence, i.e. if it is connected, the time
is automatically re-written. You also have the possibility to indicate up to nine NTP server.
The time synchronization can be inhibited by O
PTIONS
– NTP
TIME
SYNCHRONIZATION
. (Fig. 2).
Therefore it is necessary to determine whether the application program to be started only after the
time synchronization or immediately after the EibPC has started. If no NTP Server is reached after
five minutes, the application program starts in any case.
By default, starts the application program when the EibPC is operational.
Every 10 minutes the NTP server synchronized.
Figure 2: Enter NTP settings
HandbuchEibPC_USA-30.odt, 2017-05-11
Enertex
®
Bayern GmbH - Erlachstraße 13 - 91301 Forchheim - [email protected]