CP 443-1 (EX30)
Manual, 03/2019, C79000-G8976-C255-05
27
When using the CP type described here, the following limits apply:
● Number of operable CPs within a rack: 14
● Number of CPs operating as PROFINET IO controllers within an S7 station: 4
Note
Number of CPs operating as PROFINET IO controllers
The number of CPs operating as PROFINET IO controllers depends on the number of CP
443
5 Extended modules operating as DP masters in the S7400 station. A total of 10 CPs
can be operated as controllers for the distributed I/O (PROFINET IO controllers or DP
masters); of those, however, only up to 4 as PROFINET IO controllers.
Please note the following regarding multiprocessor mode: When o
perating the CP as a
PROFINET IO controller, only the process image of the assigned CPU can be distributed
via the CP.
System environment
General requirements
● The CP is released with CPUs as of firmware version 4.1.
CPUs with firmware version 4.0 must be upgraded to V4.1.
CPUs with firmware version 5.0 must be upgraded to V5.1.
● Open TCP/IP communication is supported by all CPUs as of firmware version V4.1.
● H communication
Supported with an H-CPU as of firmware version 4.5. For CPUs with version < V6, the
CP works as a CPU proxy.
The CPU substitute function of the CP requires CPUs with a firmware version from V4.5
up to lower than V6.0.
● The full range of functions (MRP, IRT, prioritized startup) is only available with CPUs as
of firmware version 5.2.
For more information about the required version of the STEP 7 configuration tool, refer to
section Project engineering (Page 30).
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