Siemens SIMATIC S7-400H - Figure 12-1 Sequence of Link-Up and Update

Link-up and update
12.3 Link-up and update sequence
S7-400H
144 System Manual, 03/2012, A5E00267695-11
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 operating in standalone mode. In the figure, CPU 0 is assumed to be
the master.
&RS\XVHUSURJUDPEORFNVRIZRUNPHPRU\
0DVWHU&38&38
6WDQGE\&38&38
/LQNLQ5(')/('VIODVKDW+]
6WDQGE\UHTXHVWV/,1.,1
$SSO\FRQQHFWLRQ
&RPSDULVRQRIPHPRU\FRQILJXUDWLRQRSHUDWLQJV\VWHPYHUVLRQDQG
)/$6+FRQWHQW
&RS\ORDGPHPRU\FRQWHQW
581
6723
'HOHWLQJORDGLQJJHQHUDWLQJDQG
FRPSUHVVLQJEORFNVQRORQJHU
SRVVLEOH7HVWDQGFRPPLVVLRQLQJ
IXQFWLRQVQRORQJHUSRVVLEOH
'HOHWLQJORDGLQJJHQHUDWLQJDQG
FRPSUHVVLQJEORFNVQRORQJHU
SRVVLEOH7HVWDQGFRPPLVVLRQLQJ
IXQFWLRQVQRORQJHUSRVVLEOH
$OOFRQQHFWLRQVDUHFDQFHOOHG
5HFRUGLQJRI'3VODYHV
5HFRUGLQJRIWKH,2GHYLFHV
8SGDWHVHHILJXUHEHORZ
&DQFHOUHVWULFWLRQVFDWFKXSRQ
GHOD\HGSURFHVVLQJ
&DQFHOUHVWULFWLRQVFDWFKXSRQ
GHOD\HGSURFHVVLQJ
6\VWHPVWDWHUHGXQGDQWRUPDVWHUVWDQGE\FKDQJHRYHUZLWK6723
RIQHZVWDQGE\
Figure 12-1 Sequence of link-up and update
*) If the "Switchover 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 conf
iguration or expa
nded memory configuration (Page 152)