Stop Simulation; Figure 6-1 Freeze State Of The Virtual Controller - Siemens Simatic S7-1500 Function Manual

Virtual time response

6.2 Stop simulation

6.2 Stop simulation
Freeze state of the virtual controller
To stop a simulation and to synchronize a simulation partner, a virtual controller can be set
to a freeze state via the API. When the virtual controller has reached a synchronization point,
it sends the event
Figure 6-1
The following occurs in the freeze state:
● The virtual time is stopped.
● No OBs and no timers are running.
● The user program is no longer executed.
● The virtual controller is still accessible from the TIA Portal.
● The input and output data of the virtual controller are in a consistent state.
Note
Cancelation of the freeze state during downloading
During a download the freeze state is canceled. After completion of the download the virtual
controller at the synchronization point is reset to the freeze state.
Note
Freeze-state ≠ operating state
The freeze state is an internal operating state of the virtual controller. It does not correspond
to RUN/STOP mode of a CPU. In the freeze state, the virtual controller maintains the last
operating state.
• The LED display on the Control Panel and on the Web server accordingly shows RUN or
STOP for instance.
• The instance shows the operating state
(Page 330).
76
OnSyncPointReached
Freeze state of the virtual controller
to the API clients.
/
SROS_FREEZE Freeze
Function Manual, 12/2017, A5E37039512-AB
, see EOperatingState
S7-PLCSIM Advanced