MAN1029-10-EN_EXL10_XL10P_UM
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5.11 Set Time/Date
The following instructions are to set and display the real-time clock in the controller. More details can
be found in the
Help File
in Cscape.
Table 5.2 - Clock and Time Setting Terms
Coordinated Universal Time (UTC)
Abbreviated to
UTC
, Coordinated Universal Time is the
primary time standard by which the world regulates clocks
and time.
Time Offset
In order to obtain the local time (anywhere in the world),
user needs to subtract / add a certain number of hours from
UTC depending on how many time zones user is away from
Greenwich.
Network Time Protocol (NTP)
A Networking Time Protocol (NTP) for clock synchronization
between computer systems over packet-switched, variable
latency data networks.
Daylight Saving Time
Time as adjusted to achieve longer evening daylight,
especially in summer, by setting the clocks an hour ahead of
the standard time.
Apply Daylight Saving (DST)
Daylight Saving Time (DST) is the practice of setting the clocks
forward one hour from standard time during the summer
months, and back again in the fall, in order to make better
use of natural daylight. Selecting this option increases the
Time offset by 1 hour.
NOTE:
Not all controllers contain real-time clocks.
NOTE
:
Controller Time Zone (UTC time):
From Cscape 9.70 SP2 and FW 14.22 onwards, UTC time is
supported.
Table 5.3
–
System Registers for UTC (Coordinated Universal Time)
%SR210 (R/W)
Time Zone: set in hours + / - UTC.
%SR211 (R/W)
Daylight Saving: YES = 1
Daylight Saving: NO = 0
(If daylight saving is enabled, one hour will be added to
the local time).
%SR212 (R)
UTC
–
Seconds
%SR213 (R)
UTC
–
Minutes
%SR214 (R)
UTC
–
Hours
%SR215 (R)
UTC
–
Date
%SR216 (R)
UTC
–
Month
%SR217 (R)
UTC
–
Year
