Figure 9-1 Sequence Of Link-Up And Update - Siemens SIMATIC S7-400H System Manual

Link-up and update
9.3 Link-up and update
Flow chart of the link-up and update operation
The diagram below outlines the general sequence of the link-up and update. In the initial
situation, the master is operating in single mode. In the figure, CPU 0 is assumed to be the
master.
Figure 9-1
*) If the "Switch to CPU with altered 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 section Switch to CPU with
modified configuration or expanded memory configuration (Page 103)
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Sequence of link-up and update
System Manual, 09/2007, A5E00267695-03
S7-400H