Siemens CPU 410-5H Process Automation System Manual page 259

Flow chart of the link-up and update operation
The figure below outlines the general sequence of the link-up and update. In the initial
situation, the master is in solo operation. In the figure, CPU 0 is assumed to be the master
CPU.
Figure 16-21 Sequence of link-up and update
*) If the "Switchover to CPU with modified configuration" option is set, the content of the load
memory is not copied; what is copied from the user program blocks of the work memory
(OBs, FCs, FBs, DBs, SDBs) of the master CPU is listed in Chapter Switch to CPU with
modified configuration or expanded memory configuration (Page 265)
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
Supplementary information
16.12 Link-up and update sequence
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