Reaction When Cpu Is Switched To Stop Or Run - Siemens SIMATIC S5 Manual

11.2.3 Reaction when CPU is switched to STOP or RUN

CPU reaction The table below shows the reactions when the mode selector switch of the
CPU is set to STOP or RUN while the bus is in operation.
Precondition: It is assumed that all DP slaves connected to the bus are
addressable. If this is not the case, you must also make provision for the
reactions occurring when bus communication is interrupted or when a DP
slave fails (see Section 11.2.4).
Note
If you switch the CPU to STOP or the CPU goes to STOP, the data
transferred while the STOP is in progress is no longer consistent.
Table 11-4 Reaction when CPU is switched to STOP or RUN
Preconditions
CPU IM 308-C
RUN STOP OFF
STOP STOP RUN RUN
RUN STOP ST
STOP S O RUN
RUN STOP RN
STOP RUN RN
1
The modes of the IM 308-C are as defined in Table 11-2.
2
At least one DP slave must be configured for this error-reporting mode.
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
PS
Error- CPU
reporting
mode
– If you switch the CPU to STOP or the
CPU goes to STOP, the data transferred
while the STOP is in progress is no hil h STOP i i
longer consistent.
2
QVZ If you switch the CPU to STOP or the
CPU goes to STOP the data transferred CPU goes to STOP, the data transferred
while the STOP is in progress is no
longer consistent.
2
PEU / Inputs are set to "0", outputs cannot be set.
None
– Inputs of the DP slave set to current
values
– Inputs of the DP slave set to current
values.
IM 308-C – starting ET 200
Reactions
IM 308-C
OFF
i
STOP
p g
CLEAR
RUN
1
DP slaves
Status of
outputs is
sustained. i d
Status of
outputs is outputs is
sustained.
Outputs are
set to "0".
Outputs are
set to current
values.
11-9
11