Siemens SIMATIC NET CP 342-5 Manual page 41

Note on 8: Consistency in the data acceptance between CP and user program
Depending on the behavior in the user program, you can consider different areas as
consistent data areas on the transfer interface between CP and user program.
● Variant 1: NDR bit is evaluated on the program block interface
● Variant 2: NDR bit is not evaluated on the program block interface
Table 7- 2 Consistency range in DP master mode
Access method in the user program
Variant 1
Variant 2
Table 7- 3 Consistency range in DP slave mode
Access method in the user program
Variant 1
Variant 2
Note on 9: Program blocks for the DP mode
Program blocks with the current version of STEP 7 ship with the CP 342-5 / CP 342-5 FO
described here. In the following table, you can see how you can use these block versions
and the previous block versions for the available modules:
Program block type
(version)
< V3.0
>= V3.0
CP 342-5 / CP 342-5 FO
Manual, 10/2011, C79000-G8976-C146-09
You can assume consistency over the entire DP data area used.
You can assume data consistency in a contiguous, non-overlapping 32-byte area.
("Non-overlapping" means: 32-byte areas must be counted or taken into account from the
start address "0" of the DP data area under consideration.)
can be used with module type CP 342-5 with order no. 6GK7 342-
-5DA00-0XE0
●
●
7.3 Compatibility in the user program in DP mode
maximum area size with data consistency
2160 bytes
32 bytes
maximum area size with data consistency
240 bytes
32 bytes
-5DA01-0XE0
●
●
Compatibility with the previous product
-5DA02-0XE0
configured as ..DA00
or ..DA01
●
● ●
-5DF00-0XE0
-5DA02-0XE0
-5DA03-0XE0
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