Configuration and operation
6.6 Interface configuration
CP 443-1 (EX30)
50 Manual, 03/2019, C79000-G8976-C255-05
With the autocrossing mechanism integrated in the switch, it is possible to use a standard
cable to connect the PC/PG. A crossover cable is not necessary.
Note
Manual configuration
If you have set a port to manual configuration and select the "Disable
autonegotiation/autocrossover" option, the autocrossing mechanism is also disabled for this
port. The port then behaves like the interface of a switch. In this case, the following appli
es:
Connecting an end device
To connect an end device that does not have the autocrossing mechanism (for example
CP 4431 with order number 6GK7 443-1EX11-0XE0), you must not use a crossover
cable.
Connecting a switch
To connect a switch, that does not support autocrossing, use a crossover cable.
STEP 7 special diagnostics and Web diagnostics display the network setting
Diagnostics of the port settings for the CP described here is possible using the entries in the
diagnostics buffer using SNMP, special diagnostics, and the LED displays.
You will find information on the currently used network settings in STEP 7 as follows:
● In special diagnostics under the diagnostics object "Industrial Ethernet" in the "Network
Connection" group box;
● in STEP 7 with the menu command "PLC > Module Information";
● In Web diagnostics.
● 10/100 Mbps network components without "autonegotiation"
If you use 10/100 Mbps network components that do not support "Autonegotiation", it is
possible that you will have to set the mode manually.
● Forcing a specific mode instead of "Automatic settings"
If your application requires a specific mode instead of the automatic settings, you will
need to match up the partner devices.
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