Siemens CPU 948 - Page 472

Structure of the
link list
SUB-LIST 1 SUB-LIST 2
Link DB type DB
number
No. of data
fields
from CPU 1
to ...
DW 0
S 1
DW 16
S 1
... CPU 2 DW 1 ... ... DW 17
2
...
... CPU 3 DW 2 ... ... DW 18
3
...
...CPU 4 DW 3 ... ... DW 19
4
...
from CPU 2
to ...
DW 4
S 2
DW 20
S 2
... CPU 1 DW 5 ... ... DW 21
1
...
... CPU 3 DW 6 1
1)
10
1)
DW 22
3
2
1)
... CPU 4 DW 7 ... ... DW 23
4
...
from CPU 3
to ...
DW 8
S 3
DW 24
S 3
... CPU 1 DW 9 ... ... DW 25
1
...
... CPU 2 DW 10 ... ... DW 26
2
...
... CPU 4 DW 11 ... ... DW 27
4
...
from CPU 4
to ...
DW 12
S 4
DW 28
S 4
... CPU 1 DW 13 ... ... DW 29
1
...
... CPU 2 DW 14 ... ... DW 30
2
...
... CPU 3 DW 15 ... ... DW 31
3
...
2
15
2
0
2
15
2
0
1)
Refer to the example on the following page
Table 10-8 Link list for extending the IPC flag area
Applications
CPU 948 Programming Guide
10 - 68 C79000-G8576-C848-04