Ipcf Menu Command - Siemens SCALANCE W788-1PRO Operating Instructions Manual

Configuration Using Web Based Management and the Command Line Interface
6.7.2

iPCF Menu Command

Note
The iPCF me
W7 47-1RR and the IW
Notice
With the SCALANCE W
WLAN inte
Restriction s of the 802.11 Standard
With wireless LAN com
cannot be achieved in a
resultin g collisions. A fu
achieve d with 802.11 s
WLAN products, these
New Possibilities with iPCF
In an industrial environment, there are applications that re
response when there are large numbers of nodes and a h
cell. A deterministic behavior is also required when changi
times of under 100 milliseconds.
To meet these requirements, the iPCF expansion (industrial Point Coordination
Function) was developed. iPCF is available with the following products:
● SCALANCE W788-1RR and SCALANCE W788-2RR
● SCALANCE W747-1RR
● IWLAN/PB Link
iPCF ensures that the entire data traffic of a cell is ordered, controlled by the
access point. By avoiding collisions, the throughput can be optimized even with
large numbers of nodes. iPCF also allows fast cell changes.
Note
For PNIO communication, we always recommend that you enable the iPCF mode.
The signal strength must not fall below 60% or -65 dBm for reliable operation.
Operating Instructions SCALANCE W78x
C79000-G8976-C184-07
nu command is avai
LAN/PB Link.
788-2RR, iPCF may only be enabl
rfaces.
plying with IEEE 802.11, the m
cell when there is a high
rther restriction are the handove
tandard mechanisms. With norm
are of the order o
lable for a SC ALANCE W788-xR
aximum data throughput
er number of nodes due to the
r t
al
f several hundred
R or SCAL ANCE
ed for one of the two
imes that can be
commercially availabl e
milliseconds.
quire a deterministi c
igh data throughput in a
ng cells with ha ndover
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