Optimize The Port Settings - Siemens SIMATIC PROFINET Function Manual

5.12.4

Optimize the port settings

Optimizing port settings on the IO device and IO controller
The transfer medium and the duplex option are checked during startup of the IO device in
the case of copper cabling.
These checks require time, but with specific presets of these options you can save the time
the check requires. Make certain that the settings made correspond to the actual conditions
(using the correct cables).
Optimizing port settings for accelerated startup
To optimize port settings for accelerated startup, follow these steps:
1. Select the ports of the IO controller or the partner port of the corresponding IO device.
2. Navigate to "Port options > Connection" in the Inspector window. Select the setting
"TP 100 Mbps full duplex" under "Transmission rate/duplex"
3. Clear the "Enable autonegotiation" check box.
Figure 5-98
These settings are automatically applied during topology configuration for the partner port.
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG
Optimizing port settings for accelerated startup in STEP 7
Functions
5.12 Accelerating startup
239