Operating the Controller - CPU 41x-2 PCI
Windows Automation Center, WinAC Slot Version 4.0
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Hardware Installation and Operating Manual, Edition 02/2006, A5E00273194-02
4.3
Changing the Operating Mode of the Controller
The controller panel provides a mode selector switch that allows you to change the
operating mode of the controller. Set the mode selector switch to RUN or STOP (or
select the appropriate command on the
CPU
menu) to change the operating mode
of the controller either to RUN mode or STOP mode.
The mode selector switch positions on the controller panel correspond to the mode
selector switch positions of an S7 hardware controller:
•
RUN: The controller executes the STEP 7 user program.
•
STOP: The controller does not execute the STEP 7 user program. Outputs are
set to their safe states.
Specific controller actions are allowed or prohibited based on the operating mode.
4.3.1 Operating
Mode
(RUN/STOP) and Status Indicators
The mode selector switch on the controller panel functions like the manual mode
selector switch on a S7 hardware controller allowing you to switch between RUN
mode and STOP mode.
<=>
For both hardware controllers and PC-based controllers, the RUN and STOP
status indicators show the current operating mode of the controller. If the status
indicator shows a different operating mode than the mode selector switch position,
the controller has changed operating mode, possibly due to some error in the
program or because you used STEP 7 to change the operating mode.
