124 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL
CHAPTER 10: INTRODUCING THE D400 CONFIGURATION
Timestamps and time zones on your D400
All timestamps on the D400 are stored in UTC (coordinated universal time). Table 28
explains how time zones are handled by various components of the D400 and how this
behavior can be configured.
Table 28: Time configuration
The IEC 60870-5-103 Client and IEC 60870-5-101+104 client applications are not available
in this release.
The IEC 60870-5-101+104 application uses a slightly different concept for local to UTC time
conversion in order to be consistent with the D2x product family. If the master is in a
different time zone, you should set the Time Mode field to Set local/use local time. When
the master time synchronizes the application, the application calculates the difference
between the internal D400 UTC clock and the master's time. The application then applies
this difference to the UTC timestamps it reports to the master. In effect, it automatically
calculates the time offset.
Component Time zone handling Configuration Method
D400 system clock For all of the time zone features
described in this document to
work properly, the
D400
hardware clock must be set to
UTC using the appropriate
D400 BIOS setting.
Configured using the d400cfg utility. >
“Set System Clock” on page 146
Device and master station
internal clocks
Can be set to local time or UTC,
as desired.
Refer to the user documentation
provided with the device or master
station. If the device’s clock is offset
from UTC, the same offset should be
configured in the corresponding client
map file (see below).
Time-stamped data
communicated to the
D400
The timestamp is converted to
UTC from the configured offset
or is left unmodified if no offset
is configured.
Defined by the Time Offset field in the
client map files. Refer to
D400 Online
Help > DNP3 Client topic, IEC 60870-5-
103 with
D400 Master Application
topic, or IEC 60870-5-101+104 with
D400 Master Application topic, See
notes below table).
Time-stamped data
communicated from the
D400
The timestamp is converted
from UTC to the configured
offset or is left at UTC if no offset
is configured.
Defined by the Time Offset field. See
the
D400 Online Help > DNP Server
topic.
Local console (including
local HMI) and command
line via TELNET/SSH
All time-stamped data is shown
to you using the configured
D400 time zone setting.
Configured using the d400cfg utility. >
“Set Time Zone” on page 146
D400 web-based HMI All time-stamped data is shown
to you using the time zone
configured on the remote PC.
Refer to the user documentation
provided with the operating system
installed on the remote PC.
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