Address list number
Number of the address list for the additionally defined process image;
permitted values: 1 to 4
Block type
Type of data block containing the address list;
permitted values: 1 = DB
2 = DX
Block number
Number of the data block containing the address list;
permitted values: 3 to 255
DW no. 1st ID word
Here, you enter the number of the data word in which the first ID
word of the address list is located (refer to structure of DB 1,
Section 10.1.6).
The following ID words are possible:
KH = DE00 (digital inputs)
KH = DA00 (digital outputs)
KH = CE00 (IPC input flags)
KH = CA00 (IPC output flags)
The parameter occupies 2 flag bytes!
Note
The complete data field only needs to be set up when OB 26 is to
generate the address list during a COLD RESTART (= function
5). To execute functions 1 to 4 it is adequate to simply enter the
address list number alongside the function number in the data
field. The remaining entries are then not needed.
You must structure the data block with which you want to set up
the address list for an additional process image (= function 5)
analogous to DB 1.
You can store the address list information for each of the
additional process images in this data block by adding an end ID
to each field of information as in DB 1.
To set up the address list, you must however call OB 126 for each
additional process image using function "5" singly (only in COLD
RESTART).
2. ACCU-1-L
No. of the flag byte FY n, at which the data field begins
permitted values: 0 to 250
OB 126: Define, Transfer Process Images
CPU 948 Programming Guide
C79000-G8576-C848-04
6 - 21
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