Siemens SIMATIC S7-1200, Системное руководство

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101BExtended instructions
8.1 Date and time-of-day
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
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Table 8- 16 Data types for the parameters
Parameter and type Data type Description
REQ IN Bool REQ=1: execute function
Timezone IN TimeTransformationRule Rules for the transformation from system time to
local time
DONE OUT Bool Function complete
BUSY OUT Bool Function busy
ERROR OUT Bool Error detected
STATUS OUT Word Function result / error message
1
The REQ input is not used for SCL.
To manually configure the time zone parameters for the CPU, use the "Time of day"
properties of the "General" tab of the device configuration.
Use the SET_TIMEZONE instruction to set the local time configuration programmatically.
The parameters of the "TimeTransformationRule" structure specify the local time zone and
timing for automatic switching between standard time and daylight saving time.
Table 8- 17 "TimeTransformationRule" structure
Parameter Data type Description
Bias Int Time difference between UTC and local time [min]
DaylightBias Int Time difference between winter and summer time [min]
DaylightStartMonth USInt Month of daylight saving time
DaylightStartWeek USInt Week of daylight saving time:
 1 = First occurrence of the weekday in the month

...
 5 = Last occurrence of the weekday of the month
DaylightStartWeekday USInt Weekday of daylight saving time:
 1 = Sunday

...
 7 = Saturday
DaylightStartHour USInt Hour of daylight saving time
StandardStartMonth USInt Month of switching to winter time
StandardStartWeek USInt Week of the changeover to winter time:
 1 = First occurrence of the weekday in the month

...
 5 = last occurrence of the weekday of the month
StandardStartWeekday USInt Weekday of winter time:

1 = Sunday
 ...

7 = Saturday