Manual – DFE32B Fieldbus Interface PROFINET IO
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6
PROFINET configuration with topology detection
Operating Behavior in Conjunction with PROFINET
6.8.4
Changing the port properties
The two Ethernet ports of the PROFINET interface are set to "Automatic setup" by de-
fault. Observe the following for this default setup:
• Auto-negotiation and Auto-crossover are activated.
• The baud rate and the duplex mode are configured automatically.
• The neighboring port must also be set to "Automatic setup".
• You can use patch or crossover cables.
You may set a port to "100 Mbit/s full duplex". Observe the following for this setup:
• This setting must also be made for the port of the neighbor unit, otherwise it would
work with 100 Mbit/s half duplex.
• If auto-crossover is deactivated, you have to use cross cables.
Proceed as follows to set a port to "100 Mbit/s full duplex":
1. Select a unit in STEP 7 HW Config.
2. Select the desired port on slot 0.
3. Right-click on the port and select "Object properties" from the context menu.
The "Object properties ..." window is displayed.
4. Select the "Options" tab [1].
5. From the "Transmission medium/duplex" [2] select "TP/ITP with 100 Mbit/s full du-
plex".
6. Deactivate the "Auto-negotiation/auto-crossover" checkbox [1].
67800AEN
[1]
"Auto-negotiation/auto-crossover" checkbox
[2]
"Transmission medium/duplex" selection list
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[1]
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