Time of day events
You can configure a time of day interrupt event to occur once on a specified date or time or
cyclically with one of the following cycles:
● Every minute: The interrupt occurs every minute.
● Hourly: The interrupt occurs every hour.
● Daily: The interrupt occurs every day at a specified time (hour and minute).
● Weekly: The interrupt occurs every week at a specified time on a specified day of the
● Monthly: The interrupt occurs every month at a specified time on a specified day of the
● Every end of month: The interrupt occurs on the last day of every month at a specified
● Yearly: The interrupt occurs every year on the specified date (month and day). You
Table 4- 9
Input
CaughtUp
SecondTimes Bool
4.1.3.11
Status OB
Status OBs execute if a DPV1 or PNIO slave triggers a status interrupt. This might be the
case if a component (module or rack) of a DPV1 or PNIO slave changes its operating mode,
for example from RUN to STOP.
Status events
For detailed information on events that trigger a status interrupt, refer to the manufacturer's
documentation for the DPV1 or PNIO slave.
Table 4- 10
Input
LADDR
Slot
Specifier
4.1.3.12
Update OB
Update OBs execute if a DPV1 or PNIO slave triggers an update interrupt.
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
week (for example, every Tuesday at 4:30 in the afternoon).
month. The day number must be between 1 and 28, inclusive.
time.
cannot specify a date of February 29.
Start information for a time of day event OB
Data type
Bool
Start information for status OB
Data type
HW_IO
UInt
Word
Description
OB call is caught up because time was set forward
OB call is started a second time because time was set backward
Description
Hardware identifier
Slot number
Alarm specifier
PLC concepts
4.1 Execution of the user program
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