Synchronising The Pc Clock - DETEWE OpenCom 130 Mounting And Commissioning Manual

Synchronising the PC Clock

With the network service SNTP (sim-
ple network time protocol) it is pos-
sible to synchronise the internal
clock of a PC with the time of the
OpenCom 130.
Requirements
You must enter the time zone so that
the OpenCom 130 can calculate the
time of the internal clock back to the
GMT (Greenwich Mean Time) re-
quired for SNTP:
1. Go to the Configurator, SYS
Configuration: System menu.
Click on Change.
2. Under Internet time (SNTP), en-
ter the Time zone for which the
time of the OpenCom 130 ap-
plies and whether summer time
is allowed for. Confirm this with
Assign.
Configuring SNTP
For various operating systems, you
can use one of the numerous SNTP
programs offered for downloading
on the Internet. Configure the
OpenCom 130 as an SNTP server for
such programs.
SNTP with Windows 2000
Here you configure the SNTP server
as follows:
1. Log on as the administrator.
Start the "Command Prompt"
Configuring the PC Software
under "Start > Programs > Ac-
cessories".
2. Enter the command line "net
time /setsntp:192.168.99.254".
Confirm with the enter key. This
command changes the setting
for the SNTP server address in
the system registry. Close the
command line.
3. Open the "Services" dialogue
under "Start > Settings > Con-
trol Panel > Administration". Set
the autostart type of the "Win-
dows Timer" service to "Auto-
matic". Start the service with
"Process > Start". Every time the
service starts, the PC clock is
synchronised with the time of
the OpenCom 130.
Please note: In a Windows do-
main network, the PDC server (pri-
mary domain controller) should auto-
matically assume the function of the
timer.
SNTP with Windows XP
Here you configure the SNTP server
by double-clicking on the time in the
Start bar. Enter the OpenCom 130 as
the "server" in the "Internet time"
tab.
Synchronising the PC Clock
109