Siemens SIMATIC S5-115U User Manual page 51

S5-115U Manual
Cold Restart Characteristics After Power Restoration
Battery status, memory submodule and status before POWER OFF are evaluated as follows on cold
restart after power restoration:
Power ON
Battery
in order?
yes
CPU previously
in STOP
no
Cold restart routine
RESTART
RUN
*
Restart delay set to approximately one second
Figure 2-10. Cold Restart Characteristics After Power Restoration
EWA 4NEB 811 6130-02b
no Is memory sub-
module RAM?
yes
Cold restart routine
STOP
Technical Description
yes
no
Retentive yes
feature set?
no
*
RESTART
RUN STOP
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