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5
Performance Data
B4 - 24
CP 443-5 Extended for PROFIBUS / Manual Part B4
Release 6/2005
C79000-G8976-C162-06
5.9
Other Characteristics
Note on DP:
The connected DP slaves can only be assigned to and serviced by one CPU.
Notice
If you use the CiR functionality, multicomputing is not possible.
Memory Reset on the CP
!
Warning
Please note that when you reset the CP memory using NCM Diagnostics or the
SIMATIC Manager, the configuration data on the CPU must also be deleted
otherwise the data will become inconsistent.
Special feature of the DP mode:
If the CPU is in the RUN mode, the memory reset is rejected by the CP.
DP Diagnostic Frames when the CPU is in STOP
All diagnostic frames from DPV0 standard slaves and all DP alarm frames from
DP - S7/DP - V1 standard slaves arriving when the CPU is in STOP mode are
handled as follows:
S
In “S7 - compatible” mode
The problems that still exist at the transition from CPU STOP to CPU RUN are
passed on the user program.
S
In DP - V1 mode
The diagnostic/alarm frames are forwarded even when the CPU is in STOP
mode, however, they must be evaluated by a suitable user program when the
module starts up.