Siemens SIMATIC S7-200 System Manual page 94

S7-200 Programmable Controller System Manual
Table 6-9 Format of the 19-Byte Time Buffer (TI)
T Byte Description
0 year (0- -99)
1 month (1- -12)
2 day (1- -31)
3 hour (0- -23)
4 minute (0- -59)
5 second (0- -59)
6 00
7 day of week (1- -7)
8 mode (00H- -03H, 08H,
10H- -13H, FFH)
9 correction hours (0- -23)
10 correction minutes (0- -59)
11 beginning month (1- -12)
12 beginning day (1- -31)
13 beginning hour (0- -23)
14 beginning minute (0- -59)
15 ending month (1- -12)
16 ending day (1- -31)
17 ending hour (0- -23)
18 ending minute (0- -59)
1
EU convention: Adjust time ahead one hour on last Sunday in March at 1:00 a.m. UTC. Adjust time back one hour on last Sunday
in October at 2:00 a.m UTC. (The local time when the correction is made depends upon the time zone offset from UTC).
2
US convention: Adjust time ahead one hour on first Sunday in April at 2:00 a.m local time. Adjust time back one hour on last
Sunday in October at 2:00 a.m local time.
3
Australia convention: Adjust time ahead one hour on last Sunday in October at 2:00 a.m. local time. Adjust time back one hour
on last Sunday in March at 3:00 a.m. local time.
4
Australia (Tasmania) convention: Adjust time ahead one hour on first Sunday in October at 2:00 a.m. local time. Adjust time back
one hour on last Sunday in March at 3:00 a.m. local time
5
New Zealand convention: Adjust time ahead one hour on first Sunday in October at 2:00 a.m. local time. Adjust time back one
hour on first Sunday on or after March 15 at 3:00 a.m. local time
80
Byte Data
current year (BCD value)
current month (BCD value)
current day (BCD value
current hour (BCD value)
current minute (BCD value)
current second (BCD value)
reserved - - always set to 00
current day of the week, 1=Sunday (BCD value)
correction mode:
00H = correction disabled
01H = EU (time zone offset from UTC = 0 hrs)
02H = EU (time zone offset from UTC = +1 hrs)
03H = EU (time zone offset from UTC = +2 hrs)
04H- -07H = reserved
08H = EU (time zone offset from UTC = - -1 hrs)
09H- -0FH = reserved
2
10H = US
3
11H = Australia
12H = Australia (Tasmania)
5
13H = New Zealand
14H- -FEH = reserved
FFH = user specified (using values in bytes 9- -18)
correction amount, hours (BCD value)
correction amount, minutes (BCD value)
beginning month of daylight saving time (BCD value)
beginning day of daylight saving time (BCD value)
beginning hour of daylight saving time (BCD value)
beginning minute of daylight saving time (BCD value)
ending month of daylight saving time (BCD value)
ending day of daylight saving time (BCD value)
ending hour of daylight saving time (BCD value
ending minute of daylight saving time (BCD value)
1
1
1
1
4