Obs For Cycle And Restart; Obs For Interrupts - Siemens SIMATIC IM 151/CPU Manual

Functions of the IM 151/CPU

OBs for Cycle and Restart

Table 5-9 OBs for Cycle and Restart
Cycle and Restart
Cycle
Restart (change from STOP to
RUN)

OBs for Interrupts

Table 5-10 OBs for Interrupts
Interrupts Invoked OB
Time-of-day interrupt
Delay Interrupt
Watchdog interrupt
(default: 100 ms
clock pulse)
Process interrupt
Diagnostic interrupt
Removal/insertion
interrupt
If OBs 10, 20, 40, 82, 83 are missing, or with OB 85 and the corresponding start
event, the IM 151/CPU goes into STOP mode.
5-14
Invoked OB
OB 1
OB 100
OB 10 Automatic start after setting and activation of the time-of-day
interrupt using STEP 7
Activation via SFC 30 after setting with STEP 7 or SFC 28
OB 20 Expiration of the time specified in SFC32
OB 35 Depending on the clock pulse (parameter assignment with
STEP 7 )
OB 40 Activation of a process interrupt
OB 82 Outgoing event (cause of event no longer exists)
Incoming event (cause of event still exists)
OB 83 Removal and insertion of modules in RUN mode
Possible Start Events
First OB 1 after restart (power on or STOP-RUN
transition of the IM 151/CPU)
Termination of the previous program cycle
Manual restart request (STOP-RUN via mode
selector or MPI command)
Automatic restart request (after power off to power
on transition)
Possible Start Events
ET 200S Interface Module IM 151/CPU
A5E00058783-01