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VIPA System SLIO
Event
STOP ® RUN res. Pow-
erON
RUN
4.12
Overall reset
Overview
4.12.1
Overall reset by means of the operating mode switch
Proceeding
HB300 | CPU | 013-CCF0R00 | en | 16-40
concerns
decentral inputs
general
decentral inputs
general
PII = Process image inputs
PIO = Process image outputs
During the overall reset the entire user memory is erased. Data located in the memory
card is not affected. You have 2 options to initiate an overall reset:
n
Overall reset by means of the operating mode switch
n
Overall reset by means of the Siemens SIMATIC Manager
You should always establish 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.
1.
Your CPU must be in STOP mode. For this switch the operating mode switch of the
CPU to STOP.
ð The STOP-LED is on.
2.
Switch the operating mode switch to MR position for about 3 seconds.
ð The STOP-LED blinks and changes from repeated blinking to permanently on.
3.
Place the operating mode switch in the position STOP and switch it to MR and
quickly back to STOP within a period of less than 3 seconds.
ð The STOP-LED blinks fast (overall reset procedure).
4.
The overall reset has been completed when the STOP-LED is on permanently.
ð The STOP-LED is on.
The following figure illustrates the above procedure:
Overall reset > Overall reset by means of the operating mode switch
Effect
The inputs are cyclically be read by the decentralized station
and the recent values are put at disposal.
First the PII is deleted, then OB 100 is called. After the execu-
tion of the OB, the BASP is reset and the cycle starts with:
Delete PIO ® Read PII ® OB 1.
The inputs are be read by the decentralized station and the
recent values are put at disposal.
The program is cyclically executed:
Read PII ® OB 1 ® Write PIO.
Deployment CPU 013-CCF0R00
79
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