Application and functions
1.4 Performance data
CP 443-5 Extended
Manual, 11/2018, C79000-G8976-C162-09
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1.4.9
Other characteristics
Note on DP:
The connected DP slaves can only be assigned to and serviced by one CPU.
Note
CiR functionality - no multicomputing
If you use the CiR functionality, multicomputing is not possible.
Memory reset on the CP
WARNING
Memory reset on the CP
Note that when you reset the CP memory using STEP 7 or STEP 7 special diagnostics, 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 RUN mode at the same time, the memory reset is rejected by the CP.
DP diagnostics 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:
●
In “S7-compatible" mode
The problems that still exist at the transition from CPU STOP to CPU RUN are passed on
the user program.
●
In DP-V1 mode
The diagnostics/interrupt 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.
