CP 443-1 (EX30)
Manual, 03/2019, C79000-G8976-C255-05
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Properties of the CP
Application
The CP is intended for use in an S7400 or S7400H (faulttolerant) automation system. It
allows the S7400 / S7400H to be connected to Industrial Ethernet.
The CP has the following interfaces:
● PROFINET interface (Ethernet interface)
A 2-port switch with IRT capability and with autocrossing, autonegotiation and
autosensing is integrated in the CP. The 2-port switch allows the integration of the CP in
a bus or a ring with media redundancy.
Each port of the switch is designed for simple diagnostics and is equipped with a
combined RXD/TXD / LINK dual LED. For special situations, each port can also be set to
a fixed mode manually using STEP 7, for example 10 or 100 Mbps half duplex / full
duplex.
Each port can be disabled individually in the configuration.
Enhanced functions
Compatibility with predecessor modules
The CP 443-1 (6GK7 443−1EX30−0XE0) with firmware version V3.2 supports all functions of
the following predecessor modules:
● 6GK7 443−1EX30−0XE0, Firmware version V3.0 / V3.1
● 6GK7 443−1EX20−0XE0, Firmware version V2.4 / V2.3 / V2.2 / V2.1 / V2.0 / V1.0
For information on replacing modules, read the section Replacing older modules: module
replacement / upgrading (Page 64)
Functional expansions of the current firmware version V3.2
● Configuration of passive TCP connections between a CP and a redundant partner with
the identical number of the local port, see Port configuration with redundant partners
(Page 52).
● Expansion of the protection concept of the CP when a protection level of the CPU is
activated, see Effects of protection levels (Page 48).