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Functions specific to SCALANCE
5.4 iPCF
The following points need to be taken into account when setting the cycle time. Otherwise it
may not be possible to establish stable communication.
● There is only one access point in the system; in other words, the clients move only in one
wireless cell. In this case, update times >= 16 ms are supported.
● There are several access points in the system that communicate over different channels.
The clients roam between the access points. In this case, select update times >= 32 ms.
In addition to the guide values shown above, remember that the shortest cycle time to be set
is calculated according to the formula "2 ms * max. number of nodes".
Requirement
The SCALANCE W700 device is in access point mode.
You are in the Interface Configuration mode of the WLAN interface.
The command prompt is as follows:
cli (config-if-wlan-0-X)#
Syntax
Call up the command with the following parameters:
wlan ipcf cycle-time <ms (4-512)>
The parameter has the following meaning
Parameter
ms
Result
The cycle time is configured.
Further notes
You display the setting with the show wlan ipcf command.
5.4.2.6
wlan ipcf scan-mode (access point)
Note
This command is only available with the following KEY-PLUG:
● W740 iFeatures (MLFB 6GK5 907-4PA00)
128
Description
Cycle time in millisec‐
onds (ms)
SCALANCE W770/W730 acc. to IEEE 802.11n Command Line Interface
Range of values / note
4, 8, 16, 32, 64, 128, 512
Configuration Manual, 09/2017, C79000-G8976-C324-08
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