Data Record Routing; Use In Faulttolerant Systems - Siemens SIMATIC NET CP 443-5 Extended Manual

Application and functions
1.4 Performance data
1.4.7

Data record routing

A maximum of 11 connections can be established simultaneously to PA field devices at any
one time.
PDM can, however, use several connections to one PA field device (for more information,
refer to the manual /6/ (Page 43)).
1.4.8

Use in faulttolerant systems

With a CP 4435 Extended, you have the following options in a faulttolerant (H) system:
● Operating faulttolerant S7 connections with communications services configured on one
partner
or
● You can implement redundant and single peripheral structures (mixed mode is also
possible).
You will find more detailed information about the possible operating and structural options in
the manual /2/ (Page 42).
If the CP 4435 Extended is used in a faulttolerant S7400H system, the following
communications services can also be used on single (nonredundant) connections:
● S7 connection (including PG functions and PG routing)
● S5compatible communication (SEND/RECEIVE interface) on FDL connections
● Forwarding time of day
Note
Use in faulttolerant systems
Note the CPU types in Table 1-1 Use with the current CPU types (Page 13) / Table 1-2
1)
Use with no longer available CPU types - part 1 (Page 14) / Table 1-3 Use with no longer
available CPU types - part 2 (Page 15)
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CP 443-5 Extended
Manual, 11/2018, C79000-G8976-C162-09