Starting and Stopping an Application
Original instructions
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PLC Transitions
PLC commands that change states:
Command
Description
STOP Plc
PLC tasks go to the STOP state.
RUN Plc
PLC tasks go to the RUN state.
RUN Task
The relevant tasks and the PLC go to the RUN state.
STOP Task
The relevant task goes to the STOP state. The PLC goes to the STOP state if this task was the last task in the RUN state.
NOTE:
  • When the PLC switches from RUN to STOP, the output modules in RIO drops associated with this task go to the configured fallback state. Input values associated with this task in the CPU memory image are interpreted as 0.
  • When the PLC switches from STOP to RUN, data received from the CPU are applied to the physical outputs associated with this task. Input images in the CPU are updated with physical inputs associated with this task.