
Manual VIPA System 300S SPEED7
Chapter 4 Deployment CPU 313SC/DPM
HB140E - CPU SC - RE_313-6CF03 - Rev. 07/45
4-29
Overall reset
During the overall reset the entire user memory (RAM) is erased. Data
located in the memory card is not affected.
You have 2 options to initiate an overall reset:
•
initiate the overall reset by means of the function selector switch
•
initiate the overall reset by means of the Siemens SIMATIC Manager
Note!
You should always issue an overall reset to your CPU before loading an
application program into your CPU to ensure that all blocks have been
cleared from the CPU.
Condition
The operating mode of the CPU is STOP. Place the function selector on
the CPU in position "STOP"
→
the STOP-LED is on.
Overall reset
•
Place the function selector in the position MRES and hold it in this
position for app. 3 seconds.
→
The STOP-LED changes from blinking to
permanently on.
•
Place the function selector in the position STOP and switch it to MRES
and quickly back to STOP within a period of less than 3 seconds.
→
The STOP-LED blinks (overall reset procedure).
•
The overall reset has been completed when the STOP-LED is on
permanently.
→
The STOP-LED is on.
The following figure illustrates the above procedure:
PWR
RUN
STOP
SF
FRCE
MCC
PLC
PWR
RUN
STOP
SF
FRCE
MCC
PLC
PWR
RUN
STOP
SF
FRCE
MCC
PLC
PWR
RUN
STOP
SF
FRCE
MCC
PLC
1
2
3
4
3 Sec.
3 Sec.
RUN
STOP
MRES
RUN
STOP
MRES
RUN
STOP
MRES
RUN
STOP
MRES
Overview
Overall reset by
means of the
function selector
Summary of Contents for 313-6CF03
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