Baer DLX User Manual page 145

1.6 Changing between summertime and wintertime
The following paragraphs illustrate the changes in system time and device
status of a registration period when switching from wintertime to summer-
time (and vice versa) and subsequently retrieving data using the SCTM
protocol.
1.6.1 Switching from wintertime to summertime
Example: Data registered on 28.03.99 is being retrieved, registration period length is
15 minutes.
CET
Central European Central European
Time
01:30
01:45
02:00
02:15
02:30
*
: The T-Bit will be set in each registration period where the time was mod-
1.6.2 Switching from summertime to wintertime
Example: Data registered on 31.10.99 is being retrieved, registration period length is
15 minutes
CET
Central European Central European
Time
00:30
00:45
01:00
01:15
01:30
01:45
02:00
02:15
02:30
*
: The T-Bit will be set in each registration period where the time was mod-
CEST
S-Bit
Summertime
01:30 0
01:45 0
03:00 1
03:15 1
03:30 1
ified.
CEST
S-Bit
Summertime
01:30 1
01:45 1
02:00 1
02:15 1
02:30 1
02:45 1
02:00 0
02:15 0
02:30 0
ified.
*
T-Bit Explanation
0 Wintertime
0 Wintertime
1 Summertime
the change from wintertime to summer-
time has taken place
0 Summertime
0 Summertime
*
T-Bit Explanation
0 Summertime
0 Summertime
0 Summertime
0 Summertime
0 Summertime
0 Summertime
1 Wintertime
S-Bit is 0,
the change from summertime to winter-
time has taken place
0 Wintertime
0 Wintertime
S-Bit is 1,
T-Bit is 1
T-Bit is 1
A 35