Requirements For Use - Siemens SIMATIC NET S7-400 Equipment Manual

• S7 communication and PG/OP communication
– PG functions with uploading / downloading of FM modules, configuration / diagnostics
– Operator control and monitoring functions (HMI)
– Download S7 connections and gateways in RUN.
– Client and server for data exchange on S7 connections using communications function
• Timeofday synchronization via PROFIBUS
– The CP forwards timeofday synchronization frames from the LAN to the station (CPU =
– The CP supports time stamping of distributed process signals in conjunction with the
– Timeofday status value (standard/daylight saving time switchover, synchronization
• Data record routing
You can use the CP as a router for data records intended for field devices (for example DP
slaves). SIMATIC PDM (Process Device Manager) is a tool that creates data records of this
type for assigning parameters to field devices.
The services of the CP 4435 Extended module listed above can be used independently at the
same time.
Replacing a module without a programming device
When installing the CP 4435 Extended, the configuration data of the CP is always stored in
the CPU. This means that replacing modules is possible without having to download the
configuration data from the PG.
Storage of the configuration data is protected from power failure by the battery backup or
the flash memory card in the CPU.
See also section Converting older systems (Page 14).
1.3

Requirements for use

The CP 4435 Extended described here is supported by all CPU operating systems in the
versions listed in Tables 2-1 and 2-2 below.
CP 443-5 Extended
Equipment Manual, 01/2023, C79000-G8976-C162-10
and routing
Note on routing: Dynamic switchover to alternative paths (for example if there is a
problem on one of the possible transmission paths) is not supported.
blocks (faulttolerant S7 connections also possible)
time slave) or from the station to the LAN (CPU= time master).
Another option is for this station to be synchronized via a different LAN. The timeofday
synchronization frame must be forwarded over PROFIBUS for the synchronization of
further stations.
IM 153.
status).
Application and functions
1.3 Requirements for use
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