Compatibility with the Previous Product
B2–16
CP 343-5 for PROFIBUS / Manual Part B2
Release 11/2002
C79000-G8976-C160-02
Information in the Online Help and the Documentation for NCM S7 for PROFIBUS
The additional information “for newer modules” in both the online help of STEP 7 /
NCM S7 and in the NCM S7 for PROFIBUS manual apply to the CP described
here. Look for the symbol shown here.
Compatibility
The CP 343-5 functions differently compared with the previous module. Make sure
you are aware of the effects in your user program. The following table provides you
with an overview.
Table 5-2
Changed Reaction
Situation
Until Now
Now
Receive buffer for AG_RECV is
too small
If the receive buffer is too small,
data are received up to the buffer
size.
The call is acknowledged with
error message 8185
H
.
If the receive buffer is too small,
no data are received.
The call is acknowledged with
error message 80B1
H
.
Notice
When writing new user programs, you should always use the latest versions of the blocks. You will find
Information on the current block versions and download links for the current blocks on the Internet at:
