Siemens SCALANCE W770 Series Configuration Manuals page 136

Functions specific to SCALANCE
5.5 iPCF-HT
Description
With this command, you configure the cycle time for iPCF-HT.
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 "4 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-ht cycle-time <ms (16-512)>
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-ht command.
136
Description
Cycle time in millisec‐
onds (ms)
SCALANCE W770/W730 acc. to IEEE 802.11n Command Line Interface
Range of values / note
The set value should correspond the cycle time of PRO‐
FINET or EtherNet/IP.
16 ... 512
Configuration Manual, 09/2017, C79000-G8976-C324-08