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5-75
System Manual
C79000-G8576-C199-06
The mode switch has two settings:
In the RUN setting, the CPU 922 processes the user program when the green
RUN LED is lit.
The CPU 922 goes to the stop state when you switch from RUN to STOP.
The red STOP LED then lights up.
You can initiate the Overall Reset, Reset and Restart functions with the
momentary-contact mode switch:
Momentary-contact switch down
With an overall reset, all RAM areas are erased and initialized (both on the
CPU and on a RAM submodule).
Momentary-contact switch up
During a reset, all flags, timers, counters and the process image will be
erased. OB 20 will be invoked. Processing of the user program will start from
the beginning again.
Momentary-contact switch at midpoint
With a restart, processing of the user program will continue from the point of
interruption. The statuses of flags, timers, counters and the process image are
retained during stoppage of the CPU.
Mode Switch
RUN
STOP
Momentary-
Contact Mode
Switch
OVERALL RESET
Reset
Restart
CPUs, Memory Cards, Memory Submodules, Interface Submodules
Содержание S5-135U
Страница 10: ...x SystemManual C79000 G8576 C199 06 Contents ...
Страница 18: ...1 8 SystemManual C79000 G8576 C199 06 Notes on Using this Manual and on the CE Symbol ...
Страница 26: ...2 8 SystemManual C79000 G8576 C199 06 Centralized and Distributed Configuration of a Programmable Controller ...
Страница 66: ...3 40 SystemManual C79000 G8576 C199 06 Installation Guidelines ...
Страница 496: ...9 114 SystemManual C79000 G8576 C199 06 Analog Input Output Modules ...
Страница 536: ...11 24 SystemManual C79000 G8576 C199 06 Connector Assignments ...
Страница 558: ...Index 8 SystemManual C79000 G8576 C199 06 Index ...